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Merge branch 'eugenp:master' into deepShallowCopy

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Neetika23 2023-10-21 20:23:16 +05:30 committed by GitHub
parent fc07da9eda b0ed62e8c8
commit c0d76384a4
1737 changed files with 32136 additions and 7144 deletions
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32
.github/ISSUE_TEMPLATE/issue_report.md vendored Normal file
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@ -0,0 +1,32 @@
---
name: Issue Report
about: Report an issue to help us improve
title: '[ISSUE] '
---
**Article and Module Links**
A link to the affected article and the affected module. You can find the link to the module in the Conclusion section in the "on Github" standard phase.
**Describe the Issue**
A clear and concise description of what the issue is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected Behavior**
A clear and concise description of what you expected to happen.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Environment (please complete the following information):**
- OS: [e.g. Windows]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]
**Additional Context**
Add any other context about the issue here.

5
.gitignore vendored
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@ -124,4 +124,7 @@ devDb*.db
*.xjb
#neo4j
persistence-modules/neo4j/data/**
persistence-modules/neo4j/data/**
/deep-shallow-copy/.mvn/wrapper
/deep-shallow-copy/mvnw
/deep-shallow-copy/mvnw.cmd

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CONTRIBUTING.md Normal file
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@ -0,0 +1,11 @@
# Contributing to Baeldung Tutorials
First off, thank you for considering contributing to Baeldung Tutorials.
## Reporting Issues
Before you submit an issue, please review the guidelines below:
1. **No Custom Modifications:** If your issue arises from any custom modifications you've made to the code in the repository, we won't be able to assist. We can only help if the issue is reproducible with the untouched codebase from this repo. If you're working with a modified version, consider asking for help on StackOverflow or other relevant forums.
2. **Use a clear and descriptive title** for the issue to identify the problem.
3. **Include a link to the article** you're having issues with.
4. **Describe the exact steps which reproduce the problem** in as many details as possible.
5. **Additional Details:** Offer any other context or descriptions that could be useful. Screenshots, error messages, copy/pasteable snippets, or logs can be immensely helpful.

14
algorithms-modules/algorithms-miscellaneous-5/src/main/java/com/baeldung/algorithms/maximumsubarray/KadaneAlgorithm.java
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@ -5,7 +5,7 @@ import org.slf4j.LoggerFactory;
public class KadaneAlgorithm {
private Logger logger = LoggerFactory.getLogger(BruteForceAlgorithm.class.getName());
private Logger logger = LoggerFactory.getLogger(KadaneAlgorithm.class.getName());
public int maxSubArraySum(int[] arr) {
@ -14,15 +14,15 @@ public class KadaneAlgorithm {
int end = 0;
int maxSoFar = arr[0], maxEndingHere = arr[0];
for (int i = 1; i < size; i++) {
if (arr[i] > maxEndingHere + arr[i]) {
start = i;
maxEndingHere = maxEndingHere + arr[i];
if (arr[i] > maxEndingHere) {
maxEndingHere = arr[i];
} else {
maxEndingHere = maxEndingHere + arr[i];
if (maxSoFar < maxEndingHere) {
start = i;
}
}
if (maxSoFar < maxEndingHere) {
maxSoFar = maxEndingHere;
end = i;

15
algorithms-modules/algorithms-miscellaneous-5/src/test/java/com/baeldung/algorithms/maximumsubarray/KadaneAlgorithmUnitTest.java
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@ -7,7 +7,7 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
class KadaneAlgorithmUnitTest {
@Test
void givenArrayWithNegativeNumberWhenMaximumSubarrayThenReturns6() {
void givenArrayWithNegativeNumberWhenMaximumSubarrayThenReturnsExpectedResult() {
//given
int[] arr = new int[] { -3, 1, -8, 4, -1, 2, 1, -5, 5 };
//when
@ -27,7 +27,7 @@ class KadaneAlgorithmUnitTest {
//then
assertEquals(-1, maxSum);
}
@Test
void givenArrayWithAllPosiitveNumbersWhenMaximumSubarrayThenReturnsExpectedResult() {
//given
@ -39,4 +39,15 @@ class KadaneAlgorithmUnitTest {
assertEquals(10, maxSum);
}
@Test
void givenArrayToTestStartIndexWhenMaximumSubarrayThenReturnsExpectedResult() {
//given
int[] arr = new int[] { 1, 2, -1, 3, -6, -2 };
//when
KadaneAlgorithm algorithm = new KadaneAlgorithm();
int maxSum = algorithm.maxSubArraySum(arr);
//then
assertEquals(5, maxSum);
}
}

1
algorithms-modules/algorithms-miscellaneous-7/README.md
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@ -3,4 +3,5 @@
- [Algorithm to Identify and Validate a Credit Card Number](https://www.baeldung.com/java-validate-cc-number)
- [Find the N Most Frequent Elements in a Java Array](https://www.baeldung.com/java-n-most-frequent-elements-array)
- [Getting Pixel Array From Image in Java](https://www.baeldung.com/java-getting-pixel-array-from-image)
- [Calculate Distance Between Two Coordinates in Java](https://www.baeldung.com/java-find-distance-between-points)
- More articles: [[<-- prev]](/algorithms-miscellaneous-6)

19
algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/latlondistance/EquirectangularApproximation.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.algorithms.latlondistance;
public class EquirectangularApproximation {
private static final int EARTH_RADIUS = 6371; // Approx Earth radius in KM
public static double calculateDistance(double lat1, double lon1, double lat2, double lon2) {
double lat1Rad = Math.toRadians(lat1);
double lat2Rad = Math.toRadians(lat2);
double lon1Rad = Math.toRadians(lon1);
double lon2Rad = Math.toRadians(lon2);
double x = (lon2Rad - lon1Rad) * Math.cos((lat1Rad + lat2Rad) / 2);
double y = (lat2Rad - lat1Rad);
double distance = Math.sqrt(x * x + y * y) * EARTH_RADIUS;
return distance;
}
}

24
algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/latlondistance/HaversineDistance.java Normal file
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@ -0,0 +1,24 @@
package com.baeldung.algorithms.latlondistance;
public class HaversineDistance {
private static final int EARTH_RADIUS = 6371; // Approx Earth radius in KM
public static double calculateDistance(double startLat, double startLong,
double endLat, double endLong) {
double dLat = Math.toRadians((endLat - startLat));
double dLong = Math.toRadians((endLong - startLong));
startLat = Math.toRadians(startLat);
endLat = Math.toRadians(endLat);
double a = haversine(dLat) + Math.cos(startLat) * Math.cos(endLat) * haversine(dLong);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return EARTH_RADIUS * c;
}
public static double haversine(double val) {
return Math.pow(Math.sin(val / 2), 2);
}
}

53
algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/latlondistance/VincentyDistance.java Normal file
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@ -0,0 +1,53 @@
package com.baeldung.algorithms.latlondistance;
public class VincentyDistance {
// Constants for WGS84 ellipsoid model of Earth
private static final double SEMI_MAJOR_AXIS_MT = 6378137;
private static final double SEMI_MINOR_AXIS_MT = 6356752.314245;
private static final double FLATTENING = 1 / 298.257223563;
private static final double ERROR_TOLERANCE = 1e-12;
public static double calculateDistance(double latitude1, double longitude1, double latitude2, double longitude2) {
double U1 = Math.atan((1 - FLATTENING) * Math.tan(Math.toRadians(latitude1)));
double U2 = Math.atan((1 - FLATTENING) * Math.tan(Math.toRadians(latitude2)));
double sinU1 = Math.sin(U1);
double cosU1 = Math.cos(U1);
double sinU2 = Math.sin(U2);
double cosU2 = Math.cos(U2);
double longitudeDifference = Math.toRadians(longitude2 - longitude1);
double previousLongitudeDifference;
double sinSigma, cosSigma, sigma, sinAlpha, cosSqAlpha, cos2SigmaM;
do {
sinSigma = Math.sqrt(Math.pow(cosU2 * Math.sin(longitudeDifference), 2) +
Math.pow(cosU1 * sinU2 - sinU1 * cosU2 * Math.cos(longitudeDifference), 2));
cosSigma = sinU1 * sinU2 + cosU1 * cosU2 * Math.cos(longitudeDifference);
sigma = Math.atan2(sinSigma, cosSigma);
sinAlpha = cosU1 * cosU2 * Math.sin(longitudeDifference) / sinSigma;
cosSqAlpha = 1 - Math.pow(sinAlpha, 2);
cos2SigmaM = cosSigma - 2 * sinU1 * sinU2 / cosSqAlpha;
if (Double.isNaN(cos2SigmaM)) {
cos2SigmaM = 0;
}
previousLongitudeDifference = longitudeDifference;
double C = FLATTENING / 16 * cosSqAlpha * (4 + FLATTENING * (4 - 3 * cosSqAlpha));
longitudeDifference = Math.toRadians(longitude2 - longitude1) + (1 - C) * FLATTENING * sinAlpha *
(sigma + C * sinSigma * (cos2SigmaM + C * cosSigma * (-1 + 2 * Math.pow(cos2SigmaM, 2))));
} while (Math.abs(longitudeDifference - previousLongitudeDifference) > ERROR_TOLERANCE);
double uSq = cosSqAlpha * (Math.pow(SEMI_MAJOR_AXIS_MT, 2) - Math.pow(SEMI_MINOR_AXIS_MT, 2)) / Math.pow(SEMI_MINOR_AXIS_MT, 2);
double A = 1 + uSq / 16384 * (4096 + uSq * (-768 + uSq * (320 - 175 * uSq)));
double B = uSq / 1024 * (256 + uSq * (-128 + uSq * (74 - 47 * uSq)));
double deltaSigma = B * sinSigma * (cos2SigmaM + B / 4 * (cosSigma * (-1 + 2 * Math.pow(cos2SigmaM, 2)) -
B / 6 * cos2SigmaM * (-3 + 4 * Math.pow(sinSigma, 2)) * (-3 + 4 * Math.pow(cos2SigmaM, 2))));
double distanceMt = SEMI_MINOR_AXIS_MT * A * (sigma - deltaSigma);
return distanceMt / 1000;
}
}

102
algorithms-modules/algorithms-miscellaneous-7/src/main/java/com/baeldung/algorithms/rotatearray/RotateArray.java Normal file
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@ -0,0 +1,102 @@
package com.baeldung.algorithms.rotatearray;
/**
* To speed up the rotation, we narrow k rotations to the remainder of k divided by the array length, or k module the array length.
* Therefore, a large rotation number will be translated into the relative smallest rotation.
* All solutions replace the original array, although they might use an extra array to compute the rotation.
*/
public class RotateArray {
private RotateArray() {
throw new IllegalStateException("Rotate array algorithm utility methods class");
}
/**
*
* @param arr array to apply rotation to
* @param k number of rotations
*/
public static void bruteForce(int[] arr, int k) {
checkInvalidInput(arr, k);
k %= arr.length;
int temp;
int previous;
for (int i = 0; i < k; i++) {
previous = arr[arr.length - 1];
for (int j = 0; j < arr.length; j++) {
temp = arr[j];
arr[j] = previous;
previous = temp;
}
}
}
/**
*
* @param arr array to apply rotation to
* @param k number of rotations
*/
public static void withExtraArray(int[] arr, int k) {
checkInvalidInput(arr, k);
int[] extraArray = new int[arr.length];
for (int i = 0; i < arr.length; i++) {
extraArray[(i + k) % arr.length] = arr[i];
}
System.arraycopy(extraArray, 0, arr, 0, arr.length);
}
/**
*
* @param arr array to apply rotation to
* @param k number of rotations
*/
public static void cyclicReplacement(int[] arr, int k) {
checkInvalidInput(arr, k);
k = k % arr.length;
int count = 0;
for (int start = 0; count < arr.length; start++) {
int current = start;
int prev = arr[start];
do {
int next = (current + k) % arr.length;
int temp = arr[next];
arr[next] = prev;
prev = temp;
current = next;
count++;
} while (start != current);
}
}
/**
*
* @param arr array to apply rotation to
* @param k number of rotations
*/
public static void reverse(int[] arr, int k) {
checkInvalidInput(arr, k);
k %= arr.length;
reverse(arr, 0, arr.length - 1);
reverse(arr, 0, k - 1);
reverse(arr, k, arr.length - 1);
}
private static void reverse(int[] nums, int start, int end) {
while (start < end) {
int temp = nums[start];
nums[start] = nums[end];
nums[end] = temp;
start++;
end--;
}
}
private static void checkInvalidInput(int[] arr, int rotation) {
if (rotation < 1 || arr == null)
throw new IllegalArgumentException("Rotation must be greater than zero or array must be not null");
}
}

26
algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/latlondistance/GeoDistanceUnitTest.java Normal file
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@ -0,0 +1,26 @@
package com.baeldung.algorithms.latlondistance;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;
class GeoDistanceUnitTest {
@Test
public void testCalculateDistance() {
double lat1 = 40.714268; // New York
double lon1 = -74.005974;
double lat2 = 34.0522; // Los Angeles
double lon2 = -118.2437;
double equirectangularDistance = EquirectangularApproximation.calculateDistance(lat1, lon1, lat2, lon2);
double haversineDistance = HaversineDistance.calculateDistance(lat1, lon1, lat2, lon2);
double vincentyDistance = VincentyDistance.calculateDistance(lat1, lon1, lat2, lon2);
double expectedDistance = 3944;
assertTrue(Math.abs(equirectangularDistance - expectedDistance) < 100);
assertTrue(Math.abs(haversineDistance - expectedDistance) < 10);
assertTrue(Math.abs(vincentyDistance - expectedDistance) < 0.5);
}
}

124
algorithms-modules/algorithms-miscellaneous-7/src/test/java/com/baeldung/algorithms/rotatearray/RotateArrayUnitTest.java Normal file
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@ -0,0 +1,124 @@
package com.baeldung.algorithms.rotatearray;
import static com.baeldung.algorithms.rotatearray.RotateArray.bruteForce;
import static com.baeldung.algorithms.rotatearray.RotateArray.cyclicReplacement;
import static com.baeldung.algorithms.rotatearray.RotateArray.reverse;
import static com.baeldung.algorithms.rotatearray.RotateArray.withExtraArray;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import org.junit.jupiter.api.Test;
class RotateArrayUnitTest {
private final int[] arr = { 1, 2, 3, 4, 5, 6 };
private final int rotationLtArrayLength = 1;
private final int rotationGtArrayLength = arr.length + 2;
private final int[] ltArrayLengthRotation = { 6, 1, 2, 3, 4, 5 };
private final int[] gtArrayLengthRotation = { 5, 6, 1, 2, 3, 4 };
@Test
void givenInputArray_whenNoRotationOrEmptyArray_thenThrowIllegalArgumentException() {
final int noRotation = 0;
final int someRotation = arr.length - 1;
assertThrows(IllegalArgumentException.class, () -> bruteForce(arr, noRotation));
assertThrows(IllegalArgumentException.class, () -> withExtraArray(arr, noRotation));
assertThrows(IllegalArgumentException.class, () -> cyclicReplacement(arr, noRotation));
assertThrows(IllegalArgumentException.class, () -> reverse(arr, noRotation));
assertThrows(IllegalArgumentException.class, () -> bruteForce(null, someRotation));
assertThrows(IllegalArgumentException.class, () -> withExtraArray(null, someRotation));
assertThrows(IllegalArgumentException.class, () -> cyclicReplacement(null, someRotation));
assertThrows(IllegalArgumentException.class, () -> reverse(null, someRotation));
}
@Test
void givenInputArray_whenUseBruteForceRotationLtArrayLength_thenRotateArrayOk() {
bruteForce(arr, rotationLtArrayLength);
assertArrayEquals(ltArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseBruteForceRotationGtArrayLength_thenRotateArrayOk() {
bruteForce(arr, rotationGtArrayLength);
assertArrayEquals(gtArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseBruteForceRotationEqArrayLength_thenDoNothing() {
int[] expected = arr.clone();
bruteForce(arr, arr.length);
assertArrayEquals(expected, arr);
}
@Test
void givenInputArray_whenUseExtraArrayRotationLtArrayLength_thenRotateArrayOk() {
withExtraArray(arr, rotationLtArrayLength);
assertArrayEquals(ltArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseExtraArrayRotationGtArrayLength_thenRotateArrayOk() {
withExtraArray(arr, rotationGtArrayLength);
assertArrayEquals(gtArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseExtraArrayWithRotationEqArrayLength_thenDoNothing() {
int[] clone = arr.clone();
withExtraArray(arr, arr.length);
assertArrayEquals(clone, arr);
}
@Test
void givenInputArray_whenUseCyclicReplacementRotationLtArrayLength_thenRotateArrayOk() {
cyclicReplacement(arr, rotationLtArrayLength);
assertArrayEquals(ltArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseCyclicReplacementRotationGtArrayLength_thenRotateArrayOk() {
cyclicReplacement(arr, rotationGtArrayLength);
assertArrayEquals(gtArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseCyclicReplacementRotationEqArrayLength_thenDoNothing() {
int[] clone = arr.clone();
cyclicReplacement(arr, arr.length);
assertArrayEquals(clone, arr);
}
@Test
void givenInputArray_whenUseReverseRotationLtArrayLength_thenRotateArrayOk() {
reverse(arr, rotationLtArrayLength);
assertArrayEquals(ltArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseReverseRotationGtArrayLength_thenRotateArrayOk() {
reverse(arr, rotationGtArrayLength);
assertArrayEquals(gtArrayLengthRotation, arr);
}
@Test
void givenInputArray_whenUseReverseRotationEqArrayLength_thenDoNothing() {
int[] clone = arr.clone();
reverse(arr, arr.length);
assertArrayEquals(clone, arr);
}
}

7
annotations/README.md
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@ -1,7 +0,0 @@
## Annotations
This module contains articles about Java annotations
### Relevant Articles:
- [Java Annotation Processing and Creating a Builder](https://www.baeldung.com/java-annotation-processing-builder)

21
annotations/pom.xml
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@ -1,21 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>annotations</artifactId>
<name>annotations</name>
<packaging>pom</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<modules>
<module>annotation-processing</module>
<module>annotation-user</module>
</modules>
</project>

10
apache-cxf-modules/cxf-spring/pom.xml
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@ -43,19 +43,19 @@
<dependency>
<groupId>com.sun.xml.ws</groupId>
<artifactId>jaxws-ri</artifactId>
<version>2.3.3</version>
<version>${jaxws-ri.version}</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<version>${javax.servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<version>${jstl.version}</version>
</dependency>
</dependencies>
@ -117,7 +117,9 @@
<properties>
<spring.version>5.3.25</spring.version>
<cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
<maven-war-plugin.version>3.3.2</maven-war-plugin.version>
<jstl.version>1.2</jstl.version>
<javax.servlet-api.version>4.0.1</javax.servlet-api.version>
<jaxws-ri.version>2.3.3</jaxws-ri.version>
</properties>
</project>

64
apache-httpclient-2/src/main/java/com/baeldung/tlsversion/ClientTlsVersionExamples.java
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@ -1,36 +1,43 @@
package com.baeldung.tlsversion;
import javax.net.ssl.SSLSocket;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import javax.net.ssl.SSLSocket;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.config.TlsConfig;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.client5.http.io.HttpClientConnectionManager;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactory;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.ssl.TLS;
import org.apache.hc.core5.ssl.SSLContexts;
import org.apache.hc.core5.util.Timeout;
public class ClientTlsVersionExamples {
public static CloseableHttpClient setViaSocketFactory() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
SSLContexts.createDefault(),
new String[] { "TLSv1.2", "TLSv1.3" },
null,
SSLConnectionSocketFactory.getDefaultHostnameVerifier());
final HttpClientConnectionManager cm = PoolingHttpClientConnectionManagerBuilder.create()
.setDefaultTlsConfig(TlsConfig.custom()
.setHandshakeTimeout(Timeout.ofSeconds(30))
.setSupportedProtocols(TLS.V_1_2, TLS.V_1_3)
.build())
.build();
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
return HttpClients.custom()
.setConnectionManager(cm)
.build();
}
public static CloseableHttpClient setTlsVersionPerConnection() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(SSLContexts.createDefault()) {
@Override
protected void prepareSocket(SSLSocket socket) {
String hostname = socket.getInetAddress().getHostName();
String hostname = socket.getInetAddress()
.getHostName();
if (hostname.endsWith("internal.system.com")) {
socket.setEnabledProtocols(new String[] { "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" });
} else {
@ -39,7 +46,14 @@ public class ClientTlsVersionExamples {
}
};
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
HttpClientConnectionManager connManager = PoolingHttpClientConnectionManagerBuilder.create()
.setSSLSocketFactory(sslsf)
.build();
return HttpClients.custom()
.setConnectionManager(connManager)
.build();
}
// To configure the TLS versions for the client, set the https.protocols system property during runtime.
@ -47,15 +61,11 @@ public class ClientTlsVersionExamples {
public static CloseableHttpClient setViaSystemProperties() {
return HttpClients.createSystem();
// Alternatively:
// return HttpClients.custom().useSystemProperties().build();
//return HttpClients.custom().useSystemProperties().build();
}
public static void main(String[] args) throws IOException {
// Alternatively:
// CloseableHttpClient httpClient = setTlsVersionPerConnection();
// CloseableHttpClient httpClient = setViaSystemProperties();
try (CloseableHttpClient httpClient = setViaSocketFactory();
CloseableHttpResponse response = httpClient.execute(new HttpGet("https://httpbin.org/"))) {
try (CloseableHttpClient httpClient = setViaSocketFactory(); CloseableHttpResponse response = httpClient.execute(new HttpGet("https://httpbin.org/"))) {
HttpEntity entity = response.getEntity();
EntityUtils.consume(entity);

5
apache-httpclient-2/src/test/java/com/baeldung/httpclient/cookies/HttpClientGettingCookieValueUnitTest.java
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@ -14,6 +14,7 @@ import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.apache.hc.client5.http.impl.cookie.BasicClientCookie;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.http.cookie.ClientCookie;
import org.junit.jupiter.api.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -51,8 +52,8 @@ class HttpClientGettingCookieValueUnitTest {
private BasicCookieStore createCustomCookieStore() {
BasicCookieStore cookieStore = new BasicCookieStore();
BasicClientCookie cookie = new BasicClientCookie("custom_cookie", "test_value");
cookie.setDomain("baeldung.com");
cookie.setAttribute("domain", "true");
cookie.setDomain("github.com");
cookie.setAttribute(ClientCookie.DOMAIN_ATTR, "github.com");
cookie.setPath("/");
cookieStore.addCookie(cookie);
return cookieStore;

2
apache-httpclient-2/src/test/java/com/baeldung/httpclient/readresponsebodystring/ApacheHttpClient5UnitTest.java
View File

@ -16,7 +16,7 @@ public class ApacheHttpClient5UnitTest {
public static final String DUMMY_URL = "https://postman-echo.com/get";
@Test
public void whenUseApacheHttpClient_thenCorrect() throws IOException {
void whenUseApacheHttpClient_thenCorrect() throws IOException {
HttpGet request = new HttpGet(DUMMY_URL);
try (CloseableHttpClient client = HttpClients.createDefault()) {

7
apache-httpclient-2/src/test/java/com/baeldung/httpclient/readresponsebodystring/HttpClientUnitTest.java
View File

@ -1,6 +1,5 @@
package com.baeldung.httpclient.readresponsebodystring;
import org.junit.Test;
import java.io.IOException;
import java.net.URI;
@ -8,11 +7,13 @@ import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
public class HttpClientUnitTest {
import org.junit.jupiter.api.Test;
class HttpClientUnitTest {
public static final String DUMMY_URL = "https://postman-echo.com/get";
@Test
public void whenUseHttpClient_thenCorrect() throws IOException, InterruptedException {
void whenUseHttpClient_thenCorrect() throws IOException, InterruptedException {
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(DUMMY_URL)).build();

10
apache-httpclient-2/src/test/java/com/baeldung/httpclient/readresponsebodystring/HttpUrlConnectionUnitTest.java
View File

@ -1,7 +1,7 @@
package com.baeldung.httpclient.readresponsebodystring;
import org.junit.Assert;
import org.junit.Test;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import java.io.BufferedReader;
import java.io.IOException;
@ -10,12 +10,14 @@ import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import org.junit.jupiter.api.Test;
public class HttpUrlConnectionUnitTest {
public static final String DUMMY_URL = "https://postman-echo.com/get";
@Test
public void whenUseHttpUrlConnection_thenCorrect() throws IOException {
void whenUseHttpUrlConnection_thenCorrect() throws IOException {
HttpURLConnection connection = (HttpURLConnection) new URL(DUMMY_URL).openConnection();
InputStream inputStream = connection.getInputStream();
@ -28,7 +30,7 @@ public class HttpUrlConnectionUnitTest {
response.append(currentLine);
in.close();
Assert.assertNotNull(response.toString());
assertNotNull(response.toString());
System.out.println("Response -> " + response.toString());
}
}

2
apache-httpclient-2/src/test/java/com/baeldung/httpclient/readresponsebodystring/SpringRestTemplateUnitTest.java
View File

@ -1,6 +1,6 @@
package com.baeldung.httpclient.readresponsebodystring;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import org.springframework.web.client.RestTemplate;
public class SpringRestTemplateUnitTest {

4
apache-httpclient-2/src/test/java/com/baeldung/httpclient/readresponsebodystring/SpringWebClientUnitTest.java
View File

@ -1,6 +1,6 @@
package com.baeldung.httpclient.readresponsebodystring;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
@ -8,7 +8,7 @@ public class SpringWebClientUnitTest {
public static final String DUMMY_URL = "https://postman-echo.com/get";
@Test
public void whenUseWebClientRetrieve_thenCorrect() {
void whenUseWebClientRetrieve_thenCorrect() {
WebClient webClient = WebClient.create(DUMMY_URL);
Mono<String> body = webClient.get().retrieve().bodyToMono(String.class);
String s = body.block();

1
apache-httpclient-2/src/test/resources/logback.xml
View File

@ -4,6 +4,7 @@
<pattern>%date [%level] %logger - %msg %n</pattern>
</encoder>
</appender>
<logger name="com.baeldung.httpclient.cookies" level="info"/>
<logger name="com.baeldung.httpclient.readresponsebodystring" level="debug"/>
<logger name="org.apache.http" level="debug"/>

43
apache-httpclient/pom.xml
View File

@ -15,45 +15,6 @@
</parent>
<dependencies>
<!-- http client -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>fluent-hc</artifactId>
<version>${httpclient.version}</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>${httpclient.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpasyncclient</artifactId>
<version>${httpasyncclient.version}</version> <!-- 4.0.2 --> <!-- 4.1-beta1 -->
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents.core5</groupId>
<artifactId>httpcore5</artifactId>
@ -115,12 +76,8 @@
</build>
<properties>
<!-- util -->
<httpasyncclient.version>4.1.4</httpasyncclient.version>
<!-- testing -->
<mockserver.version>5.6.1</mockserver.version>
<wiremock.version>2.5.1</wiremock.version>
<httpclient.version>4.5.8</httpclient.version> <!-- 4.3.6 --> <!-- 4.4-beta1 -->
<!-- http client & core 5 -->
<httpcore5.version>5.2</httpcore5.version>
<httpclient5.version>5.2</httpclient5.version>

6
apache-httpclient/src/test/java/com/baeldung/httpclient/HttpClientMultipartLiveTest.java
View File

@ -4,10 +4,10 @@ import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.apache.hc.core5.http.ParseException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.entity.mime.FileBody;
import org.apache.hc.client5.http.entity.mime.HttpMultipartMode;
@ -19,6 +19,7 @@ import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.apache.hc.core5.http.ContentType;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.HttpStatus;
import org.apache.hc.core5.http.ParseException;
import java.io.BufferedReader;
import java.io.File;
@ -30,9 +31,6 @@ import java.net.URL;
class HttpClientMultipartLiveTest extends GetRequestMockServer {
// No longer available
// private static final String SERVER = "http://echo.200please.com";
private static final String SERVER = "http://localhost:8080/spring-mvc-java/stub/multipart";
private static final String TEXTFILENAME = "temp.txt";
private static final String IMAGEFILENAME = "image.jpg";

9
apache-httpclient/src/test/java/com/baeldung/httpclient/HttpClientRedirectLiveTest.java
View File

@ -1,15 +1,16 @@
package com.baeldung.httpclient;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import org.junit.jupiter.api.Test;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.impl.DefaultRedirectStrategy;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.junit.jupiter.api.Test;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import java.io.IOException;

96
apache-httpclient/src/test/java/com/baeldung/httpclient/advancedconfig/HttpClientAdvancedConfigurationIntegrationTest.java
View File

@ -1,29 +1,5 @@
package com.baeldung.httpclient.advancedconfig;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.DefaultProxyRoutePlanner;
import org.junit.Rule;
import org.junit.Test;
import java.io.IOException;
import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
import static com.github.tomakehurst.wiremock.client.WireMock.containing;
import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
@ -32,18 +8,55 @@ import static com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor;
import static com.github.tomakehurst.wiremock.client.WireMock.post;
import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
import static org.junit.Assert.assertEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class HttpClientAdvancedConfigurationIntegrationTest {
import java.io.IOException;
@Rule
public WireMockRule serviceMock = new WireMockRule(8089);
import org.apache.hc.client5.http.auth.AuthCache;
import org.apache.hc.client5.http.auth.AuthScope;
import org.apache.hc.client5.http.auth.CredentialsProvider;
import org.apache.hc.client5.http.auth.StandardAuthScheme;
import org.apache.hc.client5.http.classic.HttpClient;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.impl.auth.BasicAuthCache;
import org.apache.hc.client5.http.impl.auth.BasicScheme;
import org.apache.hc.client5.http.impl.auth.CredentialsProviderBuilder;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.routing.DefaultProxyRoutePlanner;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.io.entity.StringEntity;
@Rule
public WireMockRule proxyMock = new WireMockRule(8090);
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import com.github.tomakehurst.wiremock.WireMockServer;
class HttpClientAdvancedConfigurationIntegrationTest {
public WireMockServer serviceMock;
public WireMockServer proxyMock;
@BeforeEach
public void before () {
serviceMock = new WireMockServer(8089);
serviceMock.start();
proxyMock = new WireMockServer(8090);
proxyMock.start();
}
@AfterEach
public void after () {
serviceMock.stop();
proxyMock.stop();
}
@Test
public void givenClientWithCustomUserAgentHeader_whenExecuteRequest_shouldReturn200() throws IOException {
void givenClientWithCustomUserAgentHeader_whenExecuteRequest_shouldReturn200() throws IOException {
//given
String userAgent = "BaeldungAgent/1.0";
serviceMock.stubFor(get(urlEqualTo("/detail"))
@ -59,11 +72,11 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
HttpResponse response = httpClient.execute(httpGet);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(200, response.getCode());
}
@Test
public void givenClientThatSendDataInBody_whenSendXmlInBody_shouldReturn200() throws IOException {
void givenClientThatSendDataInBody_whenSendXmlInBody_shouldReturn200() throws IOException {
//given
String xmlBody = "<xml><id>1</id></xml>";
serviceMock.stubFor(post(urlEqualTo("/person"))
@ -82,12 +95,12 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
HttpResponse response = httpClient.execute(httpPost);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(200, response.getCode());
}
@Test
public void givenServerThatIsBehindProxy_whenClientIsConfiguredToSendRequestViaProxy_shouldReturn200() throws IOException {
void givenServerThatIsBehindProxy_whenClientIsConfiguredToSendRequestViaProxy_shouldReturn200() throws IOException {
//given
proxyMock.stubFor(get(urlMatching(".*"))
.willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
@ -107,7 +120,7 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
HttpResponse response = httpclient.execute(httpGet);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(200, response.getCode());
proxyMock.verify(getRequestedFor(urlEqualTo("/private")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
@ -125,14 +138,12 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
// Client credentials
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(proxy),
new UsernamePasswordCredentials("username_admin", "secret_password"));
CredentialsProvider credentialsProvider = CredentialsProviderBuilder.create()
.add(new AuthScope(proxy), "username_admin", "secret_password".toCharArray())
.build();
// Create AuthCache instance
AuthCache authCache = new BasicAuthCache();
// Generate BASIC scheme object and add it to the local auth cache
BasicScheme basicAuth = new BasicScheme();
authCache.put(proxy, basicAuth);
@ -149,10 +160,11 @@ public class HttpClientAdvancedConfigurationIntegrationTest {
//when
final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
httpGet.setHeader("Authorization", StandardAuthScheme.BASIC);
HttpResponse response = httpclient.execute(httpGet, context);
//then
assertEquals(response.getStatusLine().getStatusCode(), 200);
assertEquals(200, response.getCode());
proxyMock.verify(getRequestedFor(urlEqualTo("/private")).withHeader("Authorization", containing("Basic")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}

59
apache-httpclient/src/test/java/com/baeldung/httpclient/base/HttpClientBasicPostLiveTest.java
View File

@ -1,59 +0,0 @@
package com.baeldung.httpclient.base;
import com.baeldung.httpclient.ResponseUtil;
import org.apache.http.auth.AuthenticationException;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
public class HttpClientBasicPostLiveTest {
private static final String SAMPLE_URL = "http://www.github.com";
private CloseableHttpClient instance;
private CloseableHttpResponse response;
@Before
public final void before() {
instance = HttpClientBuilder.create().build();
}
@After
public final void after() throws IllegalStateException, IOException {
ResponseUtil.closeResponse(response);
}
// tests - non-GET
@Test
public final void whenExecutingPostRequest_thenNoExceptions() throws IOException {
instance.execute(new HttpPost(SAMPLE_URL));
}
@Test
public final void whenExecutingPostRequestWithBody_thenNoExceptions() throws IOException {
final HttpPost request = new HttpPost(SAMPLE_URL);
request.setEntity(new StringEntity("in the body of the POST"));
instance.execute(request);
}
@Test
public final void givenAuth_whenExecutingPostRequestWithBody_thenNoExceptions() throws IOException, AuthenticationException {
final HttpPost request = new HttpPost(SAMPLE_URL);
request.setEntity(new StringEntity("in the body of the POST"));
final UsernamePasswordCredentials creds = new UsernamePasswordCredentials("username", "password");
request.addHeader(new BasicScheme().authenticate(creds, request, null));
instance.execute(request);
}
}

75
apache-httpclient/src/test/java/com/baeldung/httpclient/base/HttpClientLiveTest.java
View File

@ -1,75 +0,0 @@
package com.baeldung.httpclient.base;
import com.baeldung.httpclient.ResponseUtil;
import org.apache.http.Header;
import org.apache.http.HttpHeaders;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import static org.hamcrest.Matchers.emptyArray;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertThat;
public class HttpClientLiveTest {
private static final String SAMPLE_URL = "http://www.github.com";
private CloseableHttpClient instance;
private CloseableHttpResponse response;
@Before
public final void before() {
instance = HttpClientBuilder.create().build();
}
@After
public final void after() throws IllegalStateException, IOException {
ResponseUtil.closeResponse(response);
}
// tests
@Test(expected = ConnectTimeoutException.class)
public final void givenLowTimeout_whenExecutingRequestWithTimeout_thenException() throws IOException {
final RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(5).setConnectTimeout(5).setSocketTimeout(2).build();
final HttpGet request = new HttpGet(SAMPLE_URL);
request.setConfig(requestConfig);
response = instance.execute(request);
}
// tests - configs
@Test
public final void givenHttpClientIsConfiguredWithCustomConnectionManager_whenExecutingRequest_thenNoExceptions() throws IOException {
instance = HttpClientBuilder.create().setConnectionManager(new BasicHttpClientConnectionManager()).build();
response = instance.execute(new HttpGet(SAMPLE_URL));
}
@Test
public final void givenCustomHeaderIsSet_whenSendingRequest_thenNoExceptions() throws IOException {
final HttpGet request = new HttpGet(SAMPLE_URL);
request.addHeader(HttpHeaders.ACCEPT, "application/xml");
response = instance.execute(request);
}
@Test
public final void givenRequestWasSet_whenAnalyzingTheHeadersOfTheResponse_thenCorrect() throws IOException {
response = instance.execute(new HttpGet(SAMPLE_URL));
final Header[] headers = response.getHeaders(HttpHeaders.CONTENT_TYPE);
assertThat(headers, not(emptyArray()));
}
}

349
apache-httpclient/src/test/java/com/baeldung/httpclient/conn/HttpClientConnectionManagementLiveTest.java
View File

@ -1,69 +1,71 @@
package com.baeldung.httpclient.conn;
import static org.junit.Assert.assertTrue;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Iterator;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.apache.http.HeaderElement;
import org.apache.http.HeaderElementIterator;
import org.apache.http.HttpClientConnection;
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.config.SocketConfig;
import org.apache.http.conn.ConnectionKeepAliveStrategy;
import org.apache.http.conn.ConnectionPoolTimeoutException;
import org.apache.http.conn.ConnectionRequest;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicHeaderElementIterator;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpCoreContext;
import org.apache.http.protocol.HttpRequestExecutor;
import org.apache.http.util.EntityUtils;
import org.junit.Ignore;
import org.junit.Test;
import org.apache.hc.client5.http.ConnectionKeepAliveStrategy;
import org.apache.hc.client5.http.HttpRoute;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.config.ConnectionConfig;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager;
import org.apache.hc.client5.http.io.ConnectionEndpoint;
import org.apache.hc.client5.http.io.LeaseRequest;
import org.apache.hc.core5.http.HeaderElement;
import org.apache.hc.core5.http.HeaderElements;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.message.MessageSupport;
import org.apache.hc.core5.http.message.StatusLine;
import org.apache.hc.core5.http.protocol.BasicHttpContext;
import org.apache.hc.core5.http.protocol.HttpContext;
import org.apache.hc.core5.pool.PoolStats;
import org.apache.hc.core5.util.Args;
import org.apache.hc.core5.util.TimeValue;
import org.apache.hc.core5.util.Timeout;
import org.junit.jupiter.api.Test;
public class HttpClientConnectionManagementLiveTest {
class HttpClientConnectionManagementLiveTest {
// Example 2.1. Getting a Connection Request for a Low Level Connection (HttpClientConnection)
@Test
public final void whenLowLevelConnectionIsEstablished_thenNoExceptions() throws ConnectionPoolTimeoutException, InterruptedException, ExecutionException {
try (BasicHttpClientConnectionManager connManager = new BasicHttpClientConnectionManager()) {
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 80));
final ConnectionRequest connRequest = connManager.requestConnection(route, null);
assertNotNull(connRequest.get(1000, TimeUnit.SECONDS));
}
final void whenLowLevelConnectionIsEstablished_thenNoExceptions() throws ExecutionException, InterruptedException, TimeoutException {
BasicHttpClientConnectionManager connMgr = new BasicHttpClientConnectionManager();
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 443));
final LeaseRequest connRequest = connMgr.lease("some-id", route, null);
assertNotNull(connRequest.get(Timeout.ZERO_MILLISECONDS));
connMgr.close();
}
// Example 3.1. Setting the PoolingHttpClientConnectionManager on a HttpClient
@Test
public final void whenPollingConnectionManagerIsConfiguredOnHttpClient_thenNoExceptions() throws ClientProtocolException, IOException {
final void whenPollingConnectionManagerIsConfiguredOnHttpClient_thenNoExceptions() throws IOException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
client.execute(new HttpGet("https://www.baeldung.com"));
assertTrue(poolingConnManager.getTotalStats()
.getLeased() == 1);
client.close();
poolingConnManager.close();
}
// Example 3.2. Using Two HttpClients to Connect to One Target Host Each
@Test
public final void whenTwoConnectionsForTwoRequests_thenNoExceptions() throws InterruptedException {
final void whenTwoConnectionsForTwoRequests_thenNoExceptions() throws InterruptedException, IOException {
HttpGet get1 = new HttpGet("https://www.baeldung.com");
HttpGet get2 = new HttpGet("https://www.google.com");
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
@ -81,61 +83,71 @@ public class HttpClientConnectionManagementLiveTest {
thread1.join();
thread2.join();
assertTrue(connManager.getTotalStats()
.getLeased() == 0);
assertEquals(0, connManager.getTotalStats().getLeased());
client1.close();
client2.close();
connManager.close();
}
// Example 4.1. Increasing the Number of Connections that Can be Open and Managed Beyond the default Limits
@Test
public final void whenIncreasingConnectionPool_thenNoEceptions() {
try (PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager()) {
connManager.setMaxTotal(5);
connManager.setDefaultMaxPerRoute(4);
HttpHost host = new HttpHost("www.baeldung.com", 80);
connManager.setMaxPerRoute(new HttpRoute(host), 5);
}
final void whenIncreasingConnectionPool_thenNoExceptions() {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
connManager.setMaxTotal(5);
connManager.setDefaultMaxPerRoute(4);
HttpHost host = new HttpHost("www.baeldung.com", 80);
connManager.setMaxPerRoute(new HttpRoute(host), 5);
connManager.close();
}
// Example 4.2. Using Threads to Execute Connections
@Test
public final void whenExecutingSameRequestsInDifferentThreads_thenExecuteReuqest() throws InterruptedException {
final void whenExecutingSameRequestsInDifferentThreads_thenExecuteRequest() throws InterruptedException, IOException {
HttpGet get = new HttpGet("http://www.baeldung.com");
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(connManager)
.build();
MultiHttpClientConnThread thread1 = new MultiHttpClientConnThread(client, get);
MultiHttpClientConnThread thread2 = new MultiHttpClientConnThread(client, get);
MultiHttpClientConnThread thread3 = new MultiHttpClientConnThread(client, get);
MultiHttpClientConnThread thread1 = new MultiHttpClientConnThread(client, get, connManager);
MultiHttpClientConnThread thread2 = new MultiHttpClientConnThread(client, get, connManager);
MultiHttpClientConnThread thread3 = new MultiHttpClientConnThread(client, get, connManager);
MultiHttpClientConnThread thread4 = new MultiHttpClientConnThread(client, get, connManager);
MultiHttpClientConnThread thread5 = new MultiHttpClientConnThread(client, get, connManager);
MultiHttpClientConnThread thread6 = new MultiHttpClientConnThread(client, get, connManager);
thread1.start();
thread2.start();
thread3.start();
thread4.start();
thread5.start();
thread6.start();
thread1.join();
thread2.join();
thread3.join();
thread4.join();
thread5.join();
thread6.join();
client.close();
connManager.close();
}
// Example 5.1. A Custom Keep Alive Strategy
@Test
public final void whenCustomizingKeepAliveStrategy_thenNoExceptions() {
final void whenCustomizingKeepAliveStrategy_thenNoExceptions() {
final ConnectionKeepAliveStrategy myStrategy = new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(final HttpResponse myResponse, final HttpContext myContext) {
final HeaderElementIterator it = new BasicHeaderElementIterator(myResponse.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
final HeaderElement he = it.nextElement();
final String param = he.getName();
final String value = he.getValue();
if ((value != null) && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
public TimeValue getKeepAliveDuration(HttpResponse response, HttpContext context) {
Args.notNull(response, "HTTP response");
final Iterator<HeaderElement> it = MessageSupport.iterate(response, HeaderElements.KEEP_ALIVE);
final HeaderElement he = it.next();
final String param = he.getName();
final String value = he.getValue();
if (value != null && param.equalsIgnoreCase("timeout")) {
try {
return TimeValue.ofSeconds(Long.parseLong(value));
} catch (final NumberFormatException ignore) {
}
}
final HttpHost target = (HttpHost) myContext.getAttribute(HttpCoreContext.HTTP_TARGET_HOST);
if ("localhost".equalsIgnoreCase(target.getHostName())) {
return 10 * 1000;
} else {
return 5 * 1000;
}
return TimeValue.ofSeconds(5);
}
};
@ -144,42 +156,38 @@ public class HttpClientConnectionManagementLiveTest {
.setKeepAliveStrategy(myStrategy)
.setConnectionManager(connManager)
.build();
connManager.close();
}
// Example 6.1. BasicHttpClientConnectionManager Connection Reuse
//Example 6.1. BasicHttpClientConnectionManager Connection Reuse
@Test
public final void givenBasicHttpClientConnManager_whenConnectionReuse_thenNoExceptions() throws IOException, HttpException, InterruptedException, ExecutionException {
BasicHttpClientConnectionManager basicConnManager = new BasicHttpClientConnectionManager();
HttpClientContext context = HttpClientContext.create();
// low level
final void givenBasicHttpClientConnManager_whenConnectionReuse_thenNoExceptions() throws InterruptedException, ExecutionException, TimeoutException, IOException, URISyntaxException {
BasicHttpClientConnectionManager connMgr = new BasicHttpClientConnectionManager();
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 443));
ConnectionRequest connRequest = basicConnManager.requestConnection(route, null);
HttpClientConnection conn = connRequest.get(10, TimeUnit.SECONDS);
basicConnManager.connect(conn, route, 1000, context);
basicConnManager.routeComplete(conn, route, context);
final HttpContext context = new BasicHttpContext();
HttpRequestExecutor exeRequest = new HttpRequestExecutor();
context.setTargetHost((new HttpHost("www.baeldung.com", 80)));
HttpGet get = new HttpGet("http://www.baeldung.com");
exeRequest.execute(get, conn, context);
final LeaseRequest connRequest = connMgr.lease("some-id", route, null);
final ConnectionEndpoint endpoint = connRequest.get(Timeout.ZERO_MILLISECONDS);
connMgr.connect(endpoint, Timeout.ZERO_MILLISECONDS, context);
basicConnManager.releaseConnection(conn, null, 1, TimeUnit.SECONDS);
connMgr.release(endpoint, null, TimeValue.ZERO_MILLISECONDS);
// high level
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(basicConnManager)
.setConnectionManager(connMgr)
.build();
client.execute(get);
HttpGet httpGet = new HttpGet("https://www.example.com");
client.execute(httpGet, context, response -> response);
client.close();
connMgr.close();
}
// Example 6.2. PoolingHttpClientConnectionManager: Re-Using Connections with Threads
@Test
public final void whenConnectionsNeededGreaterThanMaxTotal_thenLeaseMasTotalandReuse() throws InterruptedException {
HttpGet get = new HttpGet("http://echo.200please.com");
final void whenConnectionsNeededGreaterThanMaxTotal_thenLeaseMasTotalandReuse() throws InterruptedException, IOException {
HttpGet get = new HttpGet("http://www.baeldung.com");
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
connManager.setDefaultMaxPerRoute(5);
connManager.setMaxTotal(5);
connManager.setDefaultMaxPerRoute(6);
connManager.setMaxTotal(6);
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(connManager)
.build();
@ -193,48 +201,71 @@ public class HttpClientConnectionManagementLiveTest {
for (MultiHttpClientConnThread thread : threads) {
thread.join(1000);
}
client.close();
connManager.close();
}
// Example 7.1. Setting Socket Timeout to 5 Seconds
@Test
public final void whenConfiguringTimeOut_thenNoExceptions() {
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 80));
try (PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager()) {
connManager.setSocketConfig(route.getTargetHost(), SocketConfig.custom()
.setSoTimeout(5000)
.build());
assertTrue(connManager.getSocketConfig(route.getTargetHost())
.getSoTimeout() == 5000);
}
final void whenConfiguringTimeOut_thenNoExceptions() throws ExecutionException, InterruptedException, TimeoutException, IOException {
final HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 80));
final HttpContext context = new BasicHttpContext();
final PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
final ConnectionConfig connConfig = ConnectionConfig.custom()
.setSocketTimeout(5, TimeUnit.SECONDS)
.build();
connManager.setDefaultConnectionConfig(connConfig);
final LeaseRequest leaseRequest = connManager.lease("id1", route, null);
final ConnectionEndpoint endpoint = leaseRequest.get(Timeout.ZERO_MILLISECONDS);
connManager.connect(endpoint, null, context);
connManager.close();
}
// Example 8.1. Setting the HttpClient to Check for Stale Connections
@Test
public final void whenHttpClientChecksStaleConns_thenNoExceptions() {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
HttpClients.custom()
.setDefaultRequestConfig(RequestConfig.custom()
.setStaleConnectionCheckEnabled(true)
.build())
final void whenEvictIdealConn_thenNoExceptions() throws InterruptedException, IOException {
final PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
connManager.setMaxTotal(100);
try (final CloseableHttpClient httpclient = HttpClients.custom()
.setConnectionManager(connManager)
.build();
}
.evictExpiredConnections()
.evictIdleConnections(TimeValue.ofSeconds(2))
.build()) {
// create an array of URIs to perform GETs on
final String[] urisToGet = { "http://hc.apache.org/", "http://hc.apache.org/httpcomponents-core-ga/"};
// Example 8.2. Using a Stale Connection Monitor Thread
@Test
public final void whenCustomizedIdleConnMonitor_thenNoExceptions() throws InterruptedException {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
HttpClients.custom()
.setConnectionManager(connManager)
.build();
IdleConnectionMonitorThread staleMonitor = new IdleConnectionMonitorThread(connManager);
staleMonitor.start();
staleMonitor.join(1000);
for (final String requestURI : urisToGet) {
final HttpGet request = new HttpGet(requestURI);
System.out.println("Executing request " + request.getMethod() + " " + request.getRequestUri());
httpclient.execute(request, response -> {
System.out.println("----------------------------------------");
System.out.println(request + "->" + new StatusLine(response));
EntityUtils.consume(response.getEntity());
return null;
});
}
final PoolStats stats1 = connManager.getTotalStats();
System.out.println("Connections kept alive: " + stats1.getAvailable());
// Sleep 10 sec and let the connection evict or do its job
Thread.sleep(4000);
final PoolStats stats2 = connManager.getTotalStats();
System.out.println("Connections kept alive: " + stats2.getAvailable());
connManager.close();
}
}
// Example 9.1. Closing Connection and Releasing Resources
@Test(expected = IllegalStateException.class)
public final void whenClosingConnectionsandManager_thenCloseWithNoExceptions1() throws InterruptedException, ExecutionException, IOException, HttpException {
@Test
final void whenClosingConnectionsAndManager_thenCloseWithNoExceptions1() throws IOException {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(connManager)
@ -246,16 +277,11 @@ public class HttpClientConnectionManagementLiveTest {
response.close();
client.close();
connManager.close();
connManager.shutdown();
client.execute(get);
assertTrue(response.getEntity() == null);
}
@Test
// Example 3.2. TESTER VERSION
public final void whenTwoConnectionsForTwoRequests_thenTwoConnectionsAreLeased() throws InterruptedException {
final void whenTwoConnectionsForTwoRequests_thenTwoConnectionsAreLeased() throws InterruptedException, IOException {
HttpGet get1 = new HttpGet("https://www.baeldung.com");
HttpGet get2 = new HttpGet("https://www.google.com");
@ -273,77 +299,10 @@ public class HttpClientConnectionManagementLiveTest {
thread2.start();
thread1.join();
thread2.join(1000);
assertTrue(poolingConnManager.getTotalStats()
.getLeased() == 2);
}
assertEquals(2, poolingConnManager.getTotalStats().getLeased());
@Test
// Example 4.2 Tester Version
public final void whenExecutingSameRequestsInDifferentThreads_thenUseDefaultConnLimit() throws InterruptedException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final TesterVersion_MultiHttpClientConnThread thread1 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread2 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread3 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
thread1.start();
thread2.start();
thread3.start();
thread1.join(10000);
thread2.join(10000);
thread3.join(10000);
}
@Test
// 6.2 TESTER VERSION
public final void whenConnectionsNeededGreaterThanMaxTotal_thenReuseConnections() throws InterruptedException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
poolingConnManager.setDefaultMaxPerRoute(5);
poolingConnManager.setMaxTotal(5);
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final MultiHttpClientConnThread[] threads = new MultiHttpClientConnThread[10];
int countConnMade = 0;
for (int i = 0; i < threads.length; i++) {
threads[i] = new MultiHttpClientConnThread(client, new HttpGet("http://www.baeldung.com/"), poolingConnManager);
}
for (final MultiHttpClientConnThread thread : threads) {
thread.start();
}
for (final MultiHttpClientConnThread thread : threads) {
thread.join(10000);
countConnMade++;
if (countConnMade == 0) {
assertTrue(thread.getLeasedConn() == 5);
}
}
}
@Test
@Ignore("Very Long Running")
// 8.2 TESTER VERSION
public final void whenCustomizedIdleConnMonitor_thenEliminateIdleConns() throws InterruptedException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final IdleConnectionMonitorThread staleMonitor = new IdleConnectionMonitorThread(poolingConnManager);
final HttpGet get = new HttpGet("http://google.com");
final TesterVersion_MultiHttpClientConnThread thread1 = new TesterVersion_MultiHttpClientConnThread(client, get, poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread2 = new TesterVersion_MultiHttpClientConnThread(client, get, poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread3 = new TesterVersion_MultiHttpClientConnThread(client, get, poolingConnManager);
staleMonitor.start();
thread1.start();
thread1.join();
thread2.start();
thread2.join();
thread3.start();
assertTrue(poolingConnManager.getTotalStats()
.getAvailable() == 1);
thread3.join(32000);
assertTrue(poolingConnManager.getTotalStats()
.getAvailable() == 0);
client1.close();
client2.close();
poolingConnManager.close();
}
}

16
apache-httpclient/src/test/java/com/baeldung/httpclient/conn/MultiHttpClientConnThread.java
View File

@ -2,12 +2,11 @@ package com.baeldung.httpclient.conn;
import java.io.IOException;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -45,22 +44,21 @@ public class MultiHttpClientConnThread extends Thread {
try {
logger.debug("Thread Running: " + getName());
logger.debug("Thread Running: " + getName());
if (connManager != null) {
logger.info("Before - Leased Connections = " + connManager.getTotalStats().getLeased());
logger.info("Before - Available Connections = " + connManager.getTotalStats().getAvailable());
}
final HttpResponse response = client.execute(get);
HttpEntity entity = client.execute(get).getEntity();
if (connManager != null) {
leasedConn = connManager.getTotalStats().getLeased();
logger.info("After - Leased Connections = " + connManager.getTotalStats().getLeased());
logger.info("After - Available Connections = " + connManager.getTotalStats().getAvailable());
}
EntityUtils.consume(entity);
EntityUtils.consume(response.getEntity());
} catch (final IOException ex) {
logger.error("", ex);
}

7
apache-httpclient/src/test/java/com/baeldung/httpclient/conn/TesterVersion_MultiHttpClientConnThread.java
View File

@ -2,10 +2,9 @@ package com.baeldung.httpclient.conn;
import java.io.IOException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

2
apache-httpclient4/pom.xml
View File

@ -241,8 +241,6 @@
<httpcore.version>4.4.16</httpcore.version>
<httpclient.version>4.5.14</httpclient.version>
<mockserver.version>5.11.2</mockserver.version>
<!-- maven plugins -->
<maven-war-plugin.version>3.3.2</maven-war-plugin.version>
</properties>
</project>

64
apache-httpclient4/src/main/java/com/baeldung/tlsversion/ClientTlsVersionExamples.java Normal file
View File

@ -0,0 +1,64 @@
package com.baeldung.tlsversion;
import javax.net.ssl.SSLSocket;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
public class ClientTlsVersionExamples {
public static CloseableHttpClient setViaSocketFactory() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
SSLContexts.createDefault(),
new String[] { "TLSv1.2", "TLSv1.3" },
null,
SSLConnectionSocketFactory.getDefaultHostnameVerifier());
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
}
public static CloseableHttpClient setTlsVersionPerConnection() {
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(SSLContexts.createDefault()) {
@Override
protected void prepareSocket(SSLSocket socket) {
String hostname = socket.getInetAddress().getHostName();
if (hostname.endsWith("internal.system.com")) {
socket.setEnabledProtocols(new String[] { "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3" });
} else {
socket.setEnabledProtocols(new String[] { "TLSv1.3" });
}
}
};
return HttpClients.custom().setSSLSocketFactory(sslsf).build();
}
// To configure the TLS versions for the client, set the https.protocols system property during runtime.
// For example: java -Dhttps.protocols=TLSv1.1,TLSv1.2,TLSv1.3 -jar webClient.jar
public static CloseableHttpClient setViaSystemProperties() {
return HttpClients.createSystem();
// Alternatively:
// return HttpClients.custom().useSystemProperties().build();
}
public static void main(String[] args) throws IOException {
// Alternatively:
// CloseableHttpClient httpClient = setTlsVersionPerConnection();
// CloseableHttpClient httpClient = setViaSystemProperties();
try (CloseableHttpClient httpClient = setViaSocketFactory();
CloseableHttpResponse response = httpClient.execute(new HttpGet("https://httpbin.org/"))) {
HttpEntity entity = response.getEntity();
EntityUtils.consume(entity);
}
}
}

13
apache-httpclient/src/test/java/com/baeldung/httpclient/base/HttpClientSandboxLiveTest.java → apache-httpclient4/src/test/java/com/baeldung/client/HttpClientSandboxLiveTest.java
View File

@ -1,7 +1,7 @@
package com.baeldung.httpclient.base;
package com.baeldung.client;
import java.io.IOException;
import com.baeldung.httpclient.GetRequestMockServer;
import com.baeldung.httpclient.ResponseUtil;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
@ -12,15 +12,16 @@ import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import com.baeldung.GetRequestMockServer;
import com.baeldung.httpclient.ResponseUtil;
/*
* NOTE : Need module spring-security-rest-basic-auth to be running
*/
public class HttpClientSandboxLiveTest extends GetRequestMockServer {
class HttpClientSandboxLiveTest extends GetRequestMockServer {
@Test
public final void givenGetRequestExecuted_whenAnalyzingTheResponse_thenCorrectStatusCode() throws IOException {
final void givenGetRequestExecuted_whenAnalyzingTheResponse_thenCorrectStatusCode() throws IOException {
final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
final AuthScope authscp = new AuthScope("localhost", 8080);
credentialsProvider.setCredentials(authscp, new UsernamePasswordCredentials("user1", "user1Pass"));

4
apache-httpclient4/src/test/java/com/baeldung/client/RestClientV4LiveManualTest.java
View File

@ -35,7 +35,7 @@ import org.springframework.web.client.RestTemplate;
* This test requires a localhost server over HTTPS <br>
* It should only be manually run, not part of the automated build
* */
public class RestClientV4LiveManualTest {
class RestClientV4LiveManualTest {
final String urlOverHttps = "http://localhost:8082/httpclient-simple/api/bars/1";
@ -81,7 +81,7 @@ public class RestClientV4LiveManualTest {
}
@Test
public void whenHttpsUrlIsConsumed_thenException() throws ClientProtocolException, IOException {
void whenHttpsUrlIsConsumed_thenException() throws ClientProtocolException, IOException {
CloseableHttpClient httpClient = HttpClients.createDefault();
String urlOverHttps = "https://localhost:8082/httpclient-simple";
HttpGet getMethod = new HttpGet(urlOverHttps);

2
apache-httpclient4/src/test/java/com/baeldung/httpclient/ClientUtil.java
View File

@ -2,8 +2,6 @@ package com.baeldung.httpclient;
import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.impl.client.CloseableHttpClient;
public final class ClientUtil {

1
apache-httpclient4/src/test/java/com/baeldung/httpclient/HttpAsyncClientV4LiveTest.java
View File

@ -1,4 +1,5 @@
package com.baeldung.httpclient;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;

14
apache-httpclient4/src/test/java/com/baeldung/httpclient/HttpClientCancelRequestV4LiveTest.java
View File

@ -9,11 +9,11 @@ import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
public class HttpClientCancelRequestV4LiveTest {
class HttpClientCancelRequestV4LiveTest {
private static final String SAMPLE_URL = "http://www.github.com";
@ -21,18 +21,18 @@ public class HttpClientCancelRequestV4LiveTest {
private CloseableHttpResponse response;
@Before
@BeforeEach
public final void before() {
instance = HttpClientBuilder.create().build();
}
@After
@AfterEach
public final void after() throws IllegalStateException, IOException {
ResponseUtil.closeResponse(response);
}
@Test
public final void whenRequestIsCanceled_thenCorrect() throws IOException {
final void whenRequestIsCanceled_thenCorrect() throws IOException {
instance = HttpClients.custom().build();
final HttpGet request = new HttpGet(SAMPLE_URL);
response = instance.execute(request);

20
apache-httpclient4/src/test/java/com/baeldung/httpclient/HttpClientCookBookV4LiveTest.java
View File

@ -1,5 +1,9 @@
package com.baeldung.httpclient;
import org.apache.http.auth.AuthenticationException;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.auth.BasicScheme;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
@ -181,4 +185,20 @@ class HttpClientCookBookV4LiveTest {
}
}
@Test
final void whenExecutingPostRequestWithBody_thenNoExceptions() throws IOException {
final HttpPost request = new HttpPost(SAMPLE_POST_URL);
request.setEntity(new StringEntity("in the body of the POST"));
client.execute(request);
}
@Test
final void givenAuth_whenExecutingPostRequestWithBody_thenNoExceptions() throws IOException, AuthenticationException {
final HttpPost request = new HttpPost(SAMPLE_POST_URL);
request.setEntity(new StringEntity("in the body of the POST"));
final UsernamePasswordCredentials creds = new UsernamePasswordCredentials("username", "password");
request.addHeader(new BasicScheme().authenticate(creds, request, null));
client.execute(request);
}
}

6
apache-httpclient4/src/test/java/com/baeldung/httpclient/HttpClientRedirectV4LiveTest.java
View File

@ -1,12 +1,12 @@
package com.baeldung.httpclient;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import java.io.IOException;
import org.apache.http.client.methods.CloseableHttpResponse;

20
apache-httpclient4/src/test/java/com/baeldung/httpclient/HttpClientTimeoutV4LiveTest.java
View File

@ -92,6 +92,26 @@ class HttpClientTimeoutV4LiveTest extends GetRequestMockServer {
}
@Test
final void givenLowTimeout_whenExecutingRequestWithTimeout_thenException() {
final RequestConfig requestConfig = RequestConfig.custom()
.setConnectionRequestTimeout(5)
.setConnectTimeout(5)
.setSocketTimeout(2)
.build();
final CloseableHttpClient client = HttpClientBuilder.create()
.setDefaultRequestConfig(requestConfig)
.build();
final HttpGet request = new HttpGet("http://www.github.com");
assertThrows(ConnectTimeoutException.class, () -> {
response = client.execute(request);
});
}
@Test
void whenSecuredRestApiIsConsumed_then200OK() throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();

173
apache-httpclient4/src/test/java/com/baeldung/httpclient/advancedconfig/HttpClientAdvancedConfigurationIntegrationTest.java Normal file
View File

@ -0,0 +1,173 @@
package com.baeldung.httpclient.advancedconfig;
import com.github.tomakehurst.wiremock.WireMockServer;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.DefaultProxyRoutePlanner;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
import static com.github.tomakehurst.wiremock.client.WireMock.containing;
import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
import static com.github.tomakehurst.wiremock.client.WireMock.get;
import static com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor;
import static com.github.tomakehurst.wiremock.client.WireMock.post;
import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
import static org.junit.jupiter.api.Assertions.assertEquals;
class HttpClientAdvancedConfigurationIntegrationTest {
public WireMockServer serviceMock;
public WireMockServer proxyMock;
@BeforeEach
public void before () {
serviceMock = new WireMockServer(8089);
serviceMock.start();
proxyMock = new WireMockServer(8090);
proxyMock.start();
}
@AfterEach
public void after () {
serviceMock.stop();
proxyMock.stop();
}
@Test
void givenClientWithCustomUserAgentHeader_whenExecuteRequest_shouldReturn200() throws IOException {
//given
String userAgent = "BaeldungAgent/1.0";
serviceMock.stubFor(get(urlEqualTo("/detail"))
.withHeader("User-Agent", equalTo(userAgent))
.willReturn(aResponse()
.withStatus(200)));
HttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet("http://localhost:8089/detail");
httpGet.setHeader(HttpHeaders.USER_AGENT, userAgent);
//when
HttpResponse response = httpClient.execute(httpGet);
//then
assertEquals(200, response.getStatusLine().getStatusCode());
}
@Test
void givenClientThatSendDataInBody_whenSendXmlInBody_shouldReturn200() throws IOException {
//given
String xmlBody = "<xml><id>1</id></xml>";
serviceMock.stubFor(post(urlEqualTo("/person"))
.withHeader("Content-Type", equalTo("application/xml"))
.withRequestBody(equalTo(xmlBody))
.willReturn(aResponse()
.withStatus(200)));
HttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost("http://localhost:8089/person");
httpPost.setHeader("Content-Type", "application/xml");
StringEntity xmlEntity = new StringEntity(xmlBody);
httpPost.setEntity(xmlEntity);
//when
HttpResponse response = httpClient.execute(httpPost);
//then
assertEquals(200, response.getStatusLine().getStatusCode());
}
@Test
void givenServerThatIsBehindProxy_whenClientIsConfiguredToSendRequestViaProxy_shouldReturn200() throws IOException {
//given
proxyMock.stubFor(get(urlMatching(".*"))
.willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
serviceMock.stubFor(get(urlEqualTo("/private"))
.willReturn(aResponse().withStatus(200)));
HttpHost proxy = new HttpHost("localhost", 8090);
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
HttpClient httpclient = HttpClients.custom()
.setRoutePlanner(routePlanner)
.build();
//when
final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
HttpResponse response = httpclient.execute(httpGet);
//then
assertEquals(200, response.getStatusLine().getStatusCode());
proxyMock.verify(getRequestedFor(urlEqualTo("/private")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
@Test
void givenServerThatIsBehindAuthorizationProxy_whenClientSendRequest_shouldAuthorizeProperly() throws IOException {
//given
proxyMock.stubFor(get(urlMatching("/private"))
.willReturn(aResponse().proxiedFrom("http://localhost:8089/")));
serviceMock.stubFor(get(urlEqualTo("/private"))
.willReturn(aResponse().withStatus(200)));
HttpHost proxy = new HttpHost("localhost", 8090);
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
// Client credentials
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(new AuthScope(proxy),
new UsernamePasswordCredentials("username_admin", "secret_password"));
// Create AuthCache instance
AuthCache authCache = new BasicAuthCache();
// Generate BASIC scheme object and add it to the local auth cache
BasicScheme basicAuth = new BasicScheme();
authCache.put(proxy, basicAuth);
HttpClientContext context = HttpClientContext.create();
context.setCredentialsProvider(credentialsProvider);
context.setAuthCache(authCache);
HttpClient httpclient = HttpClients.custom()
.setRoutePlanner(routePlanner)
.setDefaultCredentialsProvider(credentialsProvider)
.build();
//when
final HttpGet httpGet = new HttpGet("http://localhost:8089/private");
HttpResponse response = httpclient.execute(httpGet, context);
//then
assertEquals(200, response.getStatusLine().getStatusCode());
proxyMock.verify(getRequestedFor(urlEqualTo("/private")).withHeader("Authorization", containing("Basic")));
serviceMock.verify(getRequestedFor(urlEqualTo("/private")));
}
}

17
apache-httpclient4/src/test/java/com/baeldung/httpclient/expandurl/HttpClientExpandUrlLiveTest.java
View File

@ -12,34 +12,35 @@ import org.apache.http.client.methods.HttpHead;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.junit.Before;
import org.junit.Test;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;
public class HttpClientExpandUrlLiveTest {
class HttpClientExpandUrlLiveTest {
private CloseableHttpClient client;
@Before
public final void before() {
@BeforeEach
public final void beforeEach() {
client = HttpClientBuilder.create().disableRedirectHandling().build();
}
@Test
public final void givenShortenedOnce_whenUrlIsExpanded_thenCorrectResult() throws IOException {
final void givenShortenedOnce_whenUrlIsExpanded_thenCorrectResult() throws IOException {
final String expectedResult = "https://www.baeldung.com/rest-versioning";
final String actualResult = expandSingleLevel("http://bit.ly/3LScTri");
assertThat(actualResult, equalTo(expectedResult));
}
@Test
public final void givenShortenedMultiple_whenUrlIsExpanded_thenCorrectResult() throws IOException {
final void givenShortenedMultiple_whenUrlIsExpanded_thenCorrectResult() throws IOException {
final String expectedResult = "https://www.baeldung.com/rest-versioning";
final String actualResult = expand("http://t.co/e4rDDbnzmk");
assertThat(actualResult, equalTo(expectedResult));

1
apache-httpclient4/src/test/java/com/baeldung/httpclient/httpclient/ApacheHttpClientUnitTest.java
View File

@ -17,7 +17,6 @@ import com.baeldung.GetRequestMockServer;
class ApacheHttpClientUnitTest extends GetRequestMockServer {
@Test
void givenDeveloperUsedCloseableHttpResponse_whenExecutingGetRequest_thenStatusIsOk() throws IOException {
try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) {

352
apache-httpclient4/src/test/java/com/baeldung/httpclient/httpclient/conn/HttpClientConnectionManagementLiveTest.java Normal file
View File

@ -0,0 +1,352 @@
package com.baeldung.httpclient.httpclient.conn;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import org.apache.http.HeaderElement;
import org.apache.http.HeaderElementIterator;
import org.apache.http.HttpClientConnection;
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.config.SocketConfig;
import org.apache.http.conn.ConnectionKeepAliveStrategy;
import org.apache.http.conn.ConnectionPoolTimeoutException;
import org.apache.http.conn.ConnectionRequest;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicHeaderElementIterator;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpCoreContext;
import org.apache.http.protocol.HttpRequestExecutor;
import org.apache.http.util.EntityUtils;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
class HttpClientConnectionManagementLiveTest {
// Example 2.1. Getting a Connection Request for a Low Level Connection (HttpClientConnection)
@Test
final void whenLowLevelConnectionIsEstablished_thenNoExceptions() throws ConnectionPoolTimeoutException, InterruptedException, ExecutionException {
try (BasicHttpClientConnectionManager connManager = new BasicHttpClientConnectionManager()) {
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 80));
final ConnectionRequest connRequest = connManager.requestConnection(route, null);
assertNotNull(connRequest.get(1000, TimeUnit.SECONDS));
}
}
// Example 3.1. Setting the PoolingHttpClientConnectionManager on a HttpClient
@Test
final void whenPollingConnectionManagerIsConfiguredOnHttpClient_thenNoExceptions() throws ClientProtocolException, IOException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
client.execute(new HttpGet("https://www.baeldung.com"));
assertEquals(1, poolingConnManager.getTotalStats()
.getLeased());
}
// Example 3.2. Using Two HttpClients to Connect to One Target Host Each
@Test
final void whenTwoConnectionsForTwoRequests_thenNoExceptions() throws InterruptedException {
HttpGet get1 = new HttpGet("https://www.baeldung.com");
HttpGet get2 = new HttpGet("https://www.google.com");
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client1 = HttpClients.custom()
.setConnectionManager(connManager)
.build();
CloseableHttpClient client2 = HttpClients.custom()
.setConnectionManager(connManager)
.build();
MultiHttpClientConnThread thread1 = new MultiHttpClientConnThread(client1, get1);
MultiHttpClientConnThread thread2 = new MultiHttpClientConnThread(client2, get2);
thread1.start();
thread2.start();
thread1.join();
thread2.join();
assertEquals(0, connManager.getTotalStats()
.getLeased());
}
// Example 4.1. Increasing the Number of Connections that Can be Open and Managed Beyond the default Limits
@Test
final void whenIncreasingConnectionPool_thenNoEceptions() {
try (PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager()) {
connManager.setMaxTotal(5);
connManager.setDefaultMaxPerRoute(4);
HttpHost host = new HttpHost("www.baeldung.com", 80);
connManager.setMaxPerRoute(new HttpRoute(host), 5);
}
}
// Example 4.2. Using Threads to Execute Connections
@Test
final void whenExecutingSameRequestsInDifferentThreads_thenExecuteReuqest() throws InterruptedException {
HttpGet get = new HttpGet("http://www.baeldung.com");
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(connManager)
.build();
MultiHttpClientConnThread thread1 = new MultiHttpClientConnThread(client, get);
MultiHttpClientConnThread thread2 = new MultiHttpClientConnThread(client, get);
MultiHttpClientConnThread thread3 = new MultiHttpClientConnThread(client, get);
thread1.start();
thread2.start();
thread3.start();
thread1.join();
thread2.join();
thread3.join();
}
// Example 5.1. A Custom Keep Alive Strategy
@Test
final void whenCustomizingKeepAliveStrategy_thenNoExceptions() {
final ConnectionKeepAliveStrategy myStrategy = new ConnectionKeepAliveStrategy() {
@Override
public long getKeepAliveDuration(final HttpResponse myResponse, final HttpContext myContext) {
final HeaderElementIterator it = new BasicHeaderElementIterator(myResponse.headerIterator(HTTP.CONN_KEEP_ALIVE));
while (it.hasNext()) {
final HeaderElement he = it.nextElement();
final String param = he.getName();
final String value = he.getValue();
if ((value != null) && param.equalsIgnoreCase("timeout")) {
return Long.parseLong(value) * 1000;
}
}
final HttpHost target = (HttpHost) myContext.getAttribute(HttpCoreContext.HTTP_TARGET_HOST);
if ("localhost".equalsIgnoreCase(target.getHostName())) {
return 10 * 1000;
} else {
return 5 * 1000;
}
}
};
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
HttpClients.custom()
.setKeepAliveStrategy(myStrategy)
.setConnectionManager(connManager)
.build();
}
// Example 6.1. BasicHttpClientConnectionManager Connection Reuse
@Test
final void givenBasicHttpClientConnManager_whenConnectionReuse_thenNoExceptions() throws IOException, HttpException, InterruptedException, ExecutionException {
BasicHttpClientConnectionManager basicConnManager = new BasicHttpClientConnectionManager();
HttpClientContext context = HttpClientContext.create();
// low level
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 443));
ConnectionRequest connRequest = basicConnManager.requestConnection(route, null);
HttpClientConnection conn = connRequest.get(10, TimeUnit.SECONDS);
basicConnManager.connect(conn, route, 1000, context);
basicConnManager.routeComplete(conn, route, context);
HttpRequestExecutor exeRequest = new HttpRequestExecutor();
context.setTargetHost((new HttpHost("www.baeldung.com", 80)));
HttpGet get = new HttpGet("http://www.baeldung.com");
exeRequest.execute(get, conn, context);
basicConnManager.releaseConnection(conn, null, 1, TimeUnit.SECONDS);
// high level
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(basicConnManager)
.build();
client.execute(get);
}
// Example 6.2. PoolingHttpClientConnectionManager: Re-Using Connections with Threads
@Test
final void whenConnectionsNeededGreaterThanMaxTotal_thenLeaseMasTotalandReuse() throws InterruptedException {
HttpGet get = new HttpGet("http://echo.200please.com");
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
connManager.setDefaultMaxPerRoute(5);
connManager.setMaxTotal(5);
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(connManager)
.build();
MultiHttpClientConnThread[] threads = new MultiHttpClientConnThread[10];
for (int i = 0; i < threads.length; i++) {
threads[i] = new MultiHttpClientConnThread(client, get, connManager);
}
for (MultiHttpClientConnThread thread : threads) {
thread.start();
}
for (MultiHttpClientConnThread thread : threads) {
thread.join(1000);
}
}
// Example 7.1. Setting Socket Timeout to 5 Seconds
@Test
final void whenConfiguringTimeOut_thenNoExceptions() {
HttpRoute route = new HttpRoute(new HttpHost("www.baeldung.com", 80));
try (PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager()) {
connManager.setSocketConfig(route.getTargetHost(), SocketConfig.custom()
.setSoTimeout(5000)
.build());
assertEquals(5000, connManager.getSocketConfig(route.getTargetHost())
.getSoTimeout());
}
}
// Example 8.1. Setting the HttpClient to Check for Stale Connections
@Test
final void whenHttpClientChecksStaleConns_thenNoExceptions() {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
HttpClients.custom()
.setDefaultRequestConfig(RequestConfig.custom()
.setStaleConnectionCheckEnabled(true)
.build())
.setConnectionManager(connManager)
.build();
}
// Example 8.2. Using a Stale Connection Monitor Thread
@Test
final void whenCustomizedIdleConnMonitor_thenNoExceptions() throws InterruptedException {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
HttpClients.custom()
.setConnectionManager(connManager)
.build();
IdleConnectionMonitorThread staleMonitor = new IdleConnectionMonitorThread(connManager);
staleMonitor.start();
staleMonitor.join(1000);
}
// Example 9.1. Closing Connection and Releasing Resources
@Test
final void whenClosingConnectionsAndManager_thenCloseWithNoExceptions1() throws IOException {
PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(connManager)
.build();
final HttpGet get = new HttpGet("http://google.com");
CloseableHttpResponse response = client.execute(get);
EntityUtils.consume(response.getEntity());
response.close();
client.close();
connManager.close();
connManager.shutdown();
assertThrows(IllegalStateException.class, () -> {
client.execute(get);
});
}
@Test
// Example 3.2. TESTER VERSION
final void whenTwoConnectionsForTwoRequests_thenTwoConnectionsAreLeased() throws InterruptedException {
HttpGet get1 = new HttpGet("https://www.baeldung.com");
HttpGet get2 = new HttpGet("https://www.google.com");
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
final CloseableHttpClient client1 = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final CloseableHttpClient client2 = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final TesterVersion_MultiHttpClientConnThread thread1 = new TesterVersion_MultiHttpClientConnThread(client1, get1, poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread2 = new TesterVersion_MultiHttpClientConnThread(client2, get2, poolingConnManager);
thread1.start();
thread2.start();
thread1.join();
thread2.join(1000);
assertEquals(2, poolingConnManager.getTotalStats()
.getLeased());
}
@Test
// Example 4.2 Tester Version
final void whenExecutingSameRequestsInDifferentThreads_thenUseDefaultConnLimit() throws InterruptedException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final TesterVersion_MultiHttpClientConnThread thread1 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread2 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread3 = new TesterVersion_MultiHttpClientConnThread(client, new HttpGet("http://www.google.com"), poolingConnManager);
thread1.start();
thread2.start();
thread3.start();
thread1.join(10000);
thread2.join(10000);
thread3.join(10000);
}
@Test
// 6.2 TESTER VERSION
final void whenConnectionsNeededGreaterThanMaxTotal_thenReuseConnections() throws InterruptedException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
poolingConnManager.setDefaultMaxPerRoute(5);
poolingConnManager.setMaxTotal(5);
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final MultiHttpClientConnThread[] threads = new MultiHttpClientConnThread[10];
int countConnMade = 0;
for (int i = 0; i < threads.length; i++) {
threads[i] = new MultiHttpClientConnThread(client, new HttpGet("http://www.baeldung.com/"), poolingConnManager);
}
for (final MultiHttpClientConnThread thread : threads) {
thread.start();
}
for (final MultiHttpClientConnThread thread : threads) {
thread.join(10000);
countConnMade++;
if (countConnMade == 0) {
assertEquals(5, thread.getLeasedConn());
}
}
}
@Test
@Disabled("Very Long Running")
// 8.2 TESTER VERSION
final void whenCustomizedIdleConnMonitor_thenEliminateIdleConns() throws InterruptedException {
PoolingHttpClientConnectionManager poolingConnManager = new PoolingHttpClientConnectionManager();
CloseableHttpClient client = HttpClients.custom()
.setConnectionManager(poolingConnManager)
.build();
final IdleConnectionMonitorThread staleMonitor = new IdleConnectionMonitorThread(poolingConnManager);
final HttpGet get = new HttpGet("http://google.com");
final TesterVersion_MultiHttpClientConnThread thread1 = new TesterVersion_MultiHttpClientConnThread(client, get, poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread2 = new TesterVersion_MultiHttpClientConnThread(client, get, poolingConnManager);
final TesterVersion_MultiHttpClientConnThread thread3 = new TesterVersion_MultiHttpClientConnThread(client, get, poolingConnManager);
staleMonitor.start();
thread1.start();
thread1.join();
thread2.start();
thread2.join();
thread3.start();
assertEquals(1, poolingConnManager.getTotalStats()
.getAvailable());
thread3.join(32000);
assertEquals(0, poolingConnManager.getTotalStats()
.getAvailable());
}
}

2
apache-httpclient/src/test/java/com/baeldung/httpclient/conn/IdleConnectionMonitorThread.java → apache-httpclient4/src/test/java/com/baeldung/httpclient/httpclient/conn/IdleConnectionMonitorThread.java
View File

@ -1,4 +1,4 @@
package com.baeldung.httpclient.conn;
package com.baeldung.httpclient.httpclient.conn;
import java.util.concurrent.TimeUnit;

68
apache-httpclient4/src/test/java/com/baeldung/httpclient/httpclient/conn/MultiHttpClientConnThread.java Normal file
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@ -0,0 +1,68 @@
package com.baeldung.httpclient.httpclient.conn;
import java.io.IOException;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MultiHttpClientConnThread extends Thread {
private final Logger logger = LoggerFactory.getLogger(getClass());
private final CloseableHttpClient client;
private final HttpGet get;
private PoolingHttpClientConnectionManager connManager;
private int leasedConn;
MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get, final PoolingHttpClientConnectionManager connManager) {
this.client = client;
this.get = get;
this.connManager = connManager;
leasedConn = 0;
}
MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get) {
this.client = client;
this.get = get;
}
// API
final int getLeasedConn() {
return leasedConn;
}
//
@Override
public final void run() {
try {
logger.debug("Thread Running: " + getName());
logger.debug("Thread Running: " + getName());
if (connManager != null) {
logger.info("Before - Leased Connections = " + connManager.getTotalStats().getLeased());
logger.info("Before - Available Connections = " + connManager.getTotalStats().getAvailable());
}
final HttpResponse response = client.execute(get);
if (connManager != null) {
leasedConn = connManager.getTotalStats().getLeased();
logger.info("After - Leased Connections = " + connManager.getTotalStats().getLeased());
logger.info("After - Available Connections = " + connManager.getTotalStats().getAvailable());
}
EntityUtils.consume(response.getEntity());
} catch (final IOException ex) {
logger.error("", ex);
}
}
}

45
apache-httpclient4/src/test/java/com/baeldung/httpclient/httpclient/conn/TesterVersion_MultiHttpClientConnThread.java Normal file
View File

@ -0,0 +1,45 @@
package com.baeldung.httpclient.httpclient.conn;
import java.io.IOException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Preconditions;
public class TesterVersion_MultiHttpClientConnThread extends Thread {
private final Logger logger = LoggerFactory.getLogger(getClass());
private final CloseableHttpClient client;
private final HttpGet get;
private PoolingHttpClientConnectionManager connManager;
TesterVersion_MultiHttpClientConnThread(final CloseableHttpClient client, final HttpGet get, final PoolingHttpClientConnectionManager connManager) {
this.client = client;
this.get = get;
this.connManager = Preconditions.checkNotNull(connManager);
}
//
@Override
public final void run() {
try {
logger.debug("Thread Running: " + getName());
logger.info("Before - Leased Connections = " + connManager.getTotalStats().getLeased());
logger.info("Before - Available Connections = " + connManager.getTotalStats().getAvailable());
client.execute(get);
logger.info("After - Leased Connections = " + connManager.getTotalStats().getLeased());
logger.info("After - Available Connections = " + connManager.getTotalStats().getAvailable());
} catch (final IOException ex) {
logger.error("", ex);
}
}
}

7
apache-httpclient4/src/test/java/com/baeldung/httpclient/readresponsebodystring/ApacheHttpClientUnitTest.java
View File

@ -6,18 +6,19 @@ import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
public class ApacheHttpClientUnitTest {
class ApacheHttpClientUnitTest {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
public static final String DUMMY_URL = "https://postman-echo.com/get";
@Test
public void whenUseApacheHttpClient_thenCorrect() throws IOException {
void whenUseApacheHttpClient_thenCorrect() throws IOException {
HttpGet request = new HttpGet(DUMMY_URL);
try (CloseableHttpClient client = HttpClients.createDefault(); CloseableHttpResponse response = client.execute(request)) {

18
apache-httpclient4/src/test/java/com/baeldung/httpclient/retry/ApacheHttpClientRetryLiveTest.java
View File

@ -24,7 +24,7 @@ import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
public class ApacheHttpClientRetryLiveTest {
class ApacheHttpClientRetryLiveTest {
private Integer requestCounter;
private CloseableHttpClient httpClient;
@ -93,14 +93,14 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenDefaultConfiguration_whenReceivedIOException_thenRetriesPerformed() {
void givenDefaultConfiguration_whenReceivedIOException_thenRetriesPerformed() {
createFailingHttpClient();
assertThrows(IOException.class, () -> httpClient.execute(new HttpGet("https://httpstat.us/200")));
assertThat(requestCounter).isEqualTo(4);
}
@Test
public void givenDefaultConfiguration_whenDomainNameNotResolved_thenNoRetryApplied() {
void givenDefaultConfiguration_whenDomainNameNotResolved_thenNoRetryApplied() {
createDefaultApacheHttpClient();
HttpGet request = new HttpGet(URI.create("http://domain.that.does.not.exist:80/api/v1"));
@ -109,7 +109,7 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenDefaultConfiguration_whenGotInternalServerError_thenNoRetryLogicApplied() throws IOException {
void givenDefaultConfiguration_whenGotInternalServerError_thenNoRetryLogicApplied() throws IOException {
createDefaultApacheHttpClient();
HttpGet request = new HttpGet(URI.create("https://httpstat.us/500"));
@ -120,7 +120,7 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenDefaultConfiguration_whenHttpPatchRequest_thenRetryIsNotApplied() {
void givenDefaultConfiguration_whenHttpPatchRequest_thenRetryIsNotApplied() {
createFailingHttpClient();
HttpPatch request = new HttpPatch(URI.create("https://httpstat.us/500"));
@ -129,7 +129,7 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenDefaultConfiguration_whenHttpPutRequest_thenRetryIsNotApplied() {
void givenDefaultConfiguration_whenHttpPutRequest_thenRetryIsNotApplied() {
createFailingHttpClient();
HttpPut request = new HttpPut(URI.create("https://httpstat.us/500"));
@ -138,7 +138,7 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenConfiguredRetryHandler_whenHttpPostRequest_thenRetriesPerformed() {
void givenConfiguredRetryHandler_whenHttpPostRequest_thenRetriesPerformed() {
createHttpClientWithRetryHandler();
HttpPost request = new HttpPost(URI.create("https://httpstat.us/200"));
@ -148,7 +148,7 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenCustomRetryHandler_whenUnknownHostException_thenRetryAnyway() {
void givenCustomRetryHandler_whenUnknownHostException_thenRetryAnyway() {
createHttpClientWithCustomRetryHandler();
HttpGet request = new HttpGet(URI.create("https://domain.that.does.not.exist/200"));
@ -158,7 +158,7 @@ public class ApacheHttpClientRetryLiveTest {
}
@Test
public void givenDisabledRetries_whenExecutedHttpRequestEndUpWithIOException_thenRetryIsNotApplied() {
void givenDisabledRetries_whenExecutedHttpRequestEndUpWithIOException_thenRetryIsNotApplied() {
createHttpClientWithRetriesDisabled();
HttpGet request = new HttpGet(URI.create("https://httpstat.us/200"));

2
apache-kafka-2/README.md
View File

@ -12,3 +12,5 @@ You can build the project from the command line using: *mvn clean install*, or i
- [Is a Key Required as Part of Sending Messages to Kafka?](https://www.baeldung.com/java-kafka-message-key)
- [Read Data From the Beginning Using Kafka Consumer API](https://www.baeldung.com/java-kafka-consumer-api-read)
- [Get Partition Count for a Topic in Kafka](https://www.baeldung.com/java-kafka-partition-count-topic)
- [bootstrap-server in Kafka Configuration](https://www.baeldung.com/java-kafka-bootstrap-server)
- [Introduction to Apache Kafka](https://www.baeldung.com/apache-kafka)

39
apache-kafka-2/src/main/java/com/baeldung/kafka/consumer/SimpleConsumerWithBootStrapServers.java Normal file
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@ -0,0 +1,39 @@
package com.baeldung.kafka.consumer;
import org.apache.kafka.clients.consumer.*;
import org.apache.kafka.common.serialization.LongDeserializer;
import org.apache.kafka.common.serialization.StringDeserializer;
import java.time.Duration;
import java.util.Arrays;
import java.util.Properties;
public class SimpleConsumerWithBootStrapServers {
public static void main(String[] args) {
try(final Consumer<Long, String> consumer = createConsumer()) {
ConsumerRecords<Long, String> records = consumer.poll(Duration.ofMinutes(1));
for(ConsumerRecord<Long, String> record : records) {
System.out.println(record.value());
}
}
}
private static Consumer<Long, String> createConsumer() {
final Properties props = new Properties();
props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
"localhost:9092,another-host.com:29092");
props.put(ConsumerConfig.GROUP_ID_CONFIG,
"MySampleConsumer");
props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,
LongDeserializer.class.getName());
props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,
StringDeserializer.class.getName());
// Create the consumer using props.
final Consumer<Long, String> consumer = new KafkaConsumer<Long, String>(props);
// Subscribe to the topic.
consumer.subscribe(Arrays.asList("samples"));
return consumer;
}
}

103
apache-kafka-2/src/test/java/com/baeldung/kafka/multipletopics/MultipleTopicsLiveTest.java Normal file
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@ -0,0 +1,103 @@
package com.baeldung.kafka.multipletopics;
import static org.assertj.core.api.Assertions.assertThat;
import java.time.Duration;
import java.util.Arrays;
import java.util.Properties;
import java.util.concurrent.ExecutionException;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testcontainers.containers.KafkaContainer;
import org.testcontainers.junit.jupiter.Container;
import org.testcontainers.junit.jupiter.Testcontainers;
import org.testcontainers.utility.DockerImageName;
// This live test needs a Docker Daemon running so that a kafka container can be created
@Testcontainers
public class MultipleTopicsLiveTest {
private final Logger log = LoggerFactory.getLogger(MultipleTopicsLiveTest.class);
private static final String CARD_PAYMENTS_TOPIC = "card-payments";
private static final String BANK_TRANSFERS_TOPIC = "bank-transfers";
private static KafkaProducer<String, String> producer;
private static KafkaConsumer<String, String> consumer;
@Container
private static final KafkaContainer KAFKA_CONTAINER = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:latest"));
@BeforeAll
static void setup() {
KAFKA_CONTAINER.addExposedPort(9092);
producer = new KafkaProducer<>(getProducerProperties());
consumer = new KafkaConsumer<>(getConsumerProperties());
}
@AfterAll
static void destroy() {
KAFKA_CONTAINER.stop();
}
private static Properties getProducerProperties() {
Properties producerProperties = new Properties();
producerProperties.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, KAFKA_CONTAINER.getBootstrapServers());
producerProperties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
producerProperties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
return producerProperties;
}
private static Properties getConsumerProperties() {
Properties consumerProperties = new Properties();
consumerProperties.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, KAFKA_CONTAINER.getBootstrapServers());
consumerProperties.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());
consumerProperties.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class.getName());
consumerProperties.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
consumerProperties.put(ConsumerConfig.GROUP_ID_CONFIG, "payments");
return consumerProperties;
}
@Test
void whenSendingMessagesOnTwoTopics_thenConsumerReceivesMessages() throws Exception {
publishMessages();
consumer.subscribe(Arrays.asList(CARD_PAYMENTS_TOPIC, BANK_TRANSFERS_TOPIC));
int eventsProcessed = 0;
for (ConsumerRecord<String, String> record : consumer.poll(Duration.ofSeconds(10))) {
log.info("Event on topic={}, payload={}", record.topic(), record.value());
eventsProcessed++;
}
assertThat(eventsProcessed).isEqualTo(2);
}
private void publishMessages() throws ExecutionException, InterruptedException {
ProducerRecord<String, String> cardPayment = new ProducerRecord<>(CARD_PAYMENTS_TOPIC, createCardPayment());
producer.send(cardPayment).get();
ProducerRecord<String, String> bankTransfer = new ProducerRecord<>(BANK_TRANSFERS_TOPIC, createBankTransfer());
producer.send(bankTransfer).get();
}
private String createCardPayment() {
return "{\"paymentReference\":\"A184028KM0013790\", \"type\":\"card\", \"amount\":\"275\", \"currency\":\"GBP\"}";
}
private String createBankTransfer() {
return "{\"paymentReference\":\"19ae2-18mk73-009\", \"type\":\"bank\", \"amount\":\"150\", \"currency\":\"EUR\"}";
}
}

2
apache-libraries-2/README.md Normal file
View File

@ -0,0 +1,2 @@
## Relevant Articles
- [Understanding XSLT Processing in Java](https://www.baeldung.com/java-extensible-stylesheet-language-transformations)

30
guest/memory-leaks/pom.xml → apache-libraries-2/pom.xml
View File

@ -3,28 +3,26 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>memory-leaks</artifactId>
<artifactId>apache-libraries-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>memory-leaks</name>
<name>apache-libraries-2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../../</relativePath>
</parent>
<build>
<resources>
<resource>
<directory>src/main/resources/</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
<resource>
<directory>src/test/resources/</directory>
</resource>
</resources>
</build>
<dependencies>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>${javax.validation.validation-api.version}</version>
</dependency>
</dependencies>
<properties>
<javax.validation.validation-api.version>2.0.1.Final</javax.validation.validation-api.version>
</properties>
</project>

18
apache-libraries-2/src/main/java/com/baeldung/xslt/XSLTProcessor.java Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung.xslt;
import javax.xml.transform.*;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.io.File;
public class XSLTProcessor {
public static void transformXMLUsingXSLT(String inputXMLPath, String xsltPath, String outputHTMLPath) throws TransformerException {
Source xmlSource = new StreamSource(new File(inputXMLPath));
Source xsltSource = new StreamSource(new File(xsltPath));
Result output = new StreamResult(new File(outputHTMLPath));
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer(xsltSource);
transformer.transform(xmlSource, output);
}
}

31
apache-libraries-2/src/main/java/com/baeldung/xsltProcessing/XSLTProcessorWithParametersAndOption.java Normal file
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@ -0,0 +1,31 @@
package com.baeldung.xsltProcessing;
import javax.xml.transform.*;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.io.File;
public class XSLTProcessorWithParametersAndOption {
public static void transformXMLWithParametersAndOption(
String inputXMLPath,
String xsltPath,
String outputHTMLPath,
String companyName,
boolean enableIndentation
) throws TransformerException {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Source xsltSource = new StreamSource(new File(xsltPath));
Transformer transformer = transformerFactory.newTransformer(xsltSource);
transformer.setParameter("companyName", companyName);
if (enableIndentation) {
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
}
Source xmlSource = new StreamSource(new File(inputXMLPath));
Result outputResult = new StreamResult(new File(outputHTMLPath));
transformer.transform(xmlSource, outputResult);
}
}

21
apache-libraries-2/src/main/java/com/baeldung/xsltProcessing/XSLTProcessorWithTemplate.java Normal file
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@ -0,0 +1,21 @@
package com.baeldung.xsltProcessing;
import javax.xml.transform.*;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import java.io.File;
public class XSLTProcessorWithTemplate {
public static void transformXMLUsingTemplate(String inputXMLPath, String xsltPath, String outputHTMLPath) throws TransformerException {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Source xsltSource = new StreamSource(new File(xsltPath));
Templates templates = transformerFactory.newTemplates(xsltSource);
Transformer transformer = templates.newTransformer();
Source xmlSource = new StreamSource(new File(inputXMLPath));
Result outputResult = new StreamResult(new File(outputHTMLPath));
transformer.transform(xmlSource, outputResult);
}
}

47
apache-libraries-2/src/main/resources/avroHttpRequest-schema.avsc Normal file
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@ -0,0 +1,47 @@
{
"type":"record",
"name":"AvroHttpRequest",
"namespace":"com.baeldung.avro.model",
"fields":[
{
"name":"requestTime",
"type":"long"
},
{
"name":"clientIdentifier",
"type":{
"type":"record",
"name":"ClientIdentifier",
"fields":[
{
"name":"hostName",
"type":"string"
},
{
"name":"ipAddress",
"type":"string"
}
]
}
},
{
"name":"employeeNames",
"type":{
"type":"array",
"items":"string"
},
"default":null
},
{
"name":"active",
"type":{
"type":"enum",
"name":"Active",
"symbols":[
"YES",
"NO"
]
}
}
]
}

18
apache-libraries-2/src/main/resources/log4j2.xml Normal file
View File

@ -0,0 +1,18 @@
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</Console>
</Appenders>
<Loggers>
<Logger name="org.apache.meecrowave" level="warn">
<AppenderRef ref="Console"/>
</Logger>
<Root level="info">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>

0
annotations/annotation-processing/src/main/resources/logback.xml → apache-libraries-2/src/main/resources/logback.xml
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29
apache-libraries-2/src/test/java/com/baeldung/xslt/XSLTProcessorUnitTest.java Normal file
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@ -0,0 +1,29 @@
package com.baeldung.xslt;
import org.junit.jupiter.api.Test;
import javax.xml.transform.TransformerException;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class XSLTProcessorUnitTest {
@Test
public void givenValidInputAndStylesheet_whenTransformingXML_thenOutputHTMLCreated() throws TransformerException, IOException {
// Given
String inputXMLPath = "src/test/resources/input.xml";
String xsltPath = "src/test/resources/stylesheet.xslt";
String outputHTMLPath = "src/test/resources/output.html";
XSLTProcessor.transformXMLUsingXSLT(inputXMLPath, xsltPath, outputHTMLPath);
Path outputFile = Paths.get(outputHTMLPath);
assertTrue(Files.exists(outputFile));
}
}

11
apache-libraries-2/src/test/resources/input.xml Normal file
View File

@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<root>
<person gender="male">
<name>John Doe</name>
<age>30</age>
</person>
<person gender="female">
<name>Jane Smith</name>
<age>25</age>
</person>
</root>

3
apache-libraries-2/src/test/resources/output.html Normal file
View File

@ -0,0 +1,3 @@
<?xml version="1.0" encoding="UTF-8"?>
<p>Male person: John Doe, Age: 30</p>
<p>Female person: Jane Smith, Age: 25</p>

22
apache-libraries-2/src/test/resources/stylesheet.xslt Normal file
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@ -0,0 +1,22 @@
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="person[@gender='male']">
<xsl:element name="p">
<xsl:text>Male person: </xsl:text>
<xsl:value-of select="name"/>
<xsl:text>, Age: </xsl:text>
<xsl:value-of select="age"/>
</xsl:element>
</xsl:template>
<xsl:template match="person[@gender='female']">
<xsl:element name="p">
<xsl:text>Female person: </xsl:text>
<xsl:value-of select="name"/>
<xsl:text>, Age: </xsl:text>
<xsl:value-of select="age"/>
</xsl:element>
</xsl:template>
</xsl:stylesheet>

1
apache-poi-2/README.md
View File

@ -13,4 +13,5 @@ This module contains articles about Apache POI.
- [Setting Formulas in Excel with Apache POI](https://www.baeldung.com/java-apache-poi-set-formulas)
- [Set the Date Format Using Apache POI](https://www.baeldung.com/java-apache-poi-date-format)
- [Replacing Variables in a Document Template with Java](https://www.baeldung.com/java-replace-pattern-word-document-doc-docx)
- [Lock Header Rows With Apache POI](https://www.baeldung.com/java-apache-poi-lock-header-rows)
- More articles: [[<-- prev]](../apache-poi)

19
apache-poi-2/src/main/java/com/baeldung/poi/excel/locksheet/LockSheet.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.poi.excel.locksheet;
import org.apache.poi.ss.usermodel.*;
public class LockSheet {
public void lockFirstRow(Sheet sheet) {
sheet.createFreezePane(0, 1);
}
public void lockTwoRows(Sheet sheet) {
sheet.createFreezePane(0, 2);
}
public void lockFirstColumn(Sheet sheet) {
sheet.createFreezePane(1, 0);
}
}

53
apache-poi-2/src/test/java/com/baeldung/poi/excel/locksheet/LockSheetUnitTest.java Normal file
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@ -0,0 +1,53 @@
package com.baeldung.poi.excel.locksheet;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.io.IOException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.jupiter.api.*;
class LockSheetUnitTest {
private LockSheet lockSheet;
private Workbook workbook;
private Sheet sheet;
@BeforeEach
void setup() {
workbook = new XSSFWorkbook();
sheet = workbook.createSheet();
Row row = sheet.createRow(0);
row.createCell(0).setCellValue("row 1 col 1");
row.createCell(1).setCellValue("row 1 col 2");
row = sheet.createRow(1);
row.createCell(0).setCellValue("row 2 col 1");
row.createCell(1).setCellValue("row 2 col 2");
lockSheet = new LockSheet();
}
@AfterEach
void cleanup() throws IOException {
workbook.close();
}
@Test
void whenLockFirstRow_thenFirstRowIsLocked() {
lockSheet.lockFirstRow(sheet);
assertEquals(sheet.getPaneInformation().getHorizontalSplitPosition(), 1);
}
@Test
void whenLockTwoRows_thenTwoRowsAreLocked() {
lockSheet.lockTwoRows(sheet);
assertEquals(sheet.getPaneInformation().getHorizontalSplitPosition(), 2);
}
@Test
void whenLockFirstColumn_thenFirstColumnIsLocked() {
lockSheet.lockFirstColumn(sheet);
assertEquals(sheet.getPaneInformation().getVerticalSplitPosition(), 1);
}
}

3
apache-poi-3/README.md Normal file
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@ -0,0 +1,3 @@
## Relevant Articles
- [How To Convert Excel Data Into List Of Java Objects](https://www.baeldung.com/java-convert-excel-data-into-list)
- [Expand Columns with Apache POI](https://www.baeldung.com/java-apache-poi-expand-columns)

97
apache-poi-3/pom.xml Normal file
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@ -0,0 +1,97 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>apache-poi-3</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-poi-3</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<version>${poi.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.ozlerhakan/poiji -->
<dependency>
<groupId>com.github.ozlerhakan</groupId>
<artifactId>poiji</artifactId>
<version>${poiji.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi/5.2.3 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>${poi.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas/4.1.2 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>4.1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.xmlbeans/xmlbeans/5.1.1 -->
<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>5.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-collections4 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.dhatim/fastexcel/0.15.7 -->
<dependency>
<groupId>org.dhatim</groupId>
<artifactId>fastexcel</artifactId>
<version>${fastexcel.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.dhatim/fastexcel-reader/0.15.7 -->
<dependency>
<groupId>org.dhatim</groupId>
<artifactId>fastexcel-reader</artifactId>
<version>${fastexcel.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/net.sourceforge.jexcelapi/jxl/2.6.12 -->
<dependency>
<groupId>net.sourceforge.jexcelapi</groupId>
<artifactId>jxl</artifactId>
<version>${jxl.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.17.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.17.1</version>
</dependency>
</dependencies>
<properties>
<poi.version>5.2.3</poi.version>
<poiji.version>4.1.1</poiji.version>
<fastexcel.version>0.15.7</fastexcel.version>
<jxl.version>2.6.12</jxl.version>
</properties>
</project>

54
apache-poi-3/src/main/java/com/baeldung/convert/exceldatatolist/FoodInfo.java Normal file
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@ -0,0 +1,54 @@
package com.baeldung.convert.exceldatatolist;
import com.poiji.annotation.ExcelCellName;
public class FoodInfo {
@ExcelCellName("Category")
private String category; //food category
@ExcelCellName("Name")
private String name; // food name
@ExcelCellName("Measure")
private String measure;
@ExcelCellName("Calories")
private double calories; //amount of calories in kcal/measure
@Override
public String toString() {
return "FoodInfo{" + "category='" + category + '\'' + ", name='" + name + '\'' + ", measure='" + measure + '\'' + ", calories=" + calories + "} \n";
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getMeasure() {
return measure;
}
public void setMeasure(String measure) {
this.measure = measure;
}
public double getCalories() {
return calories;
}
public void setCalories(double calories) {
this.calories = calories;
}
}

42
apache-poi-3/src/main/java/com/baeldung/convert/exceldatatolist/fastexcel/ExcelDataToListOfObjectsFastExcel.java Normal file
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@ -0,0 +1,42 @@
package com.baeldung.convert.exceldatatolist.fastexcel;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.stream.Stream;
import org.dhatim.fastexcel.reader.ReadableWorkbook;
import org.dhatim.fastexcel.reader.Row;
import org.dhatim.fastexcel.reader.Sheet;
import com.baeldung.convert.exceldatatolist.FoodInfo;
public class ExcelDataToListOfObjectsFastExcel {
public static List<FoodInfo> excelDataToListOfObjets_withFastExcel(String fileLocation)throws IOException, NumberFormatException {
List<FoodInfo> foodData = new ArrayList<FoodInfo>();
try (FileInputStream file = new FileInputStream(fileLocation);
ReadableWorkbook wb = new ReadableWorkbook(file)) {
Sheet sheet = wb.getFirstSheet();
for (Row row:
sheet.read()
) {
if(row.getRowNum() == 1) {
continue;
}
FoodInfo food = new FoodInfo();
food.setCategory(row.getCellText(0));
food.setName(row.getCellText(1));
food.setMeasure(row.getCellText(2));
food.setCalories(Double.parseDouble(row.getCellText(3)));
foodData.add(food);
}
}
return foodData;
}
}

37
apache-poi-3/src/main/java/com/baeldung/convert/exceldatatolist/jexcelapi/ExcelDataToListOfObjectsJxl.java Normal file
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@ -0,0 +1,37 @@
package com.baeldung.convert.exceldatatolist.jexcelapi;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import com.baeldung.convert.exceldatatolist.FoodInfo;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
public class ExcelDataToListOfObjectsJxl {
public static List<FoodInfo> excelDataToListOfObjets_withJxl(String fileLocation) throws IOException, BiffException {
List<FoodInfo> foodData = new ArrayList<FoodInfo>();
Workbook workbook = Workbook.getWorkbook(new File(fileLocation));
Sheet sheet = workbook.getSheet(0);
int rows = sheet.getRows();
for (int i = 1; i < rows; i++) {
FoodInfo foodInfo = new FoodInfo();
foodInfo.setCategory(sheet.getCell(0, i).getContents());
foodInfo.setName(sheet.getCell(1, i).getContents());
foodInfo.setMeasure(sheet.getCell(2, i).getContents());
foodInfo.setCalories(Double.parseDouble(sheet.getCell(3, i).getContents()));
foodData.add(foodInfo);
}
return foodData;
}
}

39
apache-poi-3/src/main/java/com/baeldung/convert/exceldatatolist/poi/ExcelDataToListApachePOI.java Normal file
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@ -0,0 +1,39 @@
package com.baeldung.convert.exceldatatolist.poi;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import com.baeldung.convert.exceldatatolist.FoodInfo;
public class ExcelDataToListApachePOI {
public static List<FoodInfo> excelDataToListOfObjets_withApachePOI(String fileLocation) throws IOException {
FileInputStream file = new FileInputStream(new File(fileLocation));
Workbook workbook = new XSSFWorkbook(file);
Sheet sheet = workbook.getSheetAt(0);
List<FoodInfo> foodData = new ArrayList<FoodInfo>();
DataFormatter dataFormatter = new DataFormatter();
for (int n = 1; n < sheet.getPhysicalNumberOfRows(); n++) {
Row row = sheet.getRow(n);
FoodInfo foodInfo = new FoodInfo();
int i = row.getFirstCellNum();
foodInfo.setCategory(dataFormatter.formatCellValue(row.getCell(i)));
foodInfo.setName(dataFormatter.formatCellValue(row.getCell(++i)));
foodInfo.setMeasure(dataFormatter.formatCellValue(row.getCell(++i)));
foodInfo.setCalories(Double.parseDouble(dataFormatter.formatCellValue(row.getCell(++i))));
foodData.add(foodInfo);
}
return foodData;
}
}

13
apache-poi-3/src/main/java/com/baeldung/convert/exceldatatolist/poiji/ExcelDataToListOfObjectsPOIJI.java Normal file
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@ -0,0 +1,13 @@
package com.baeldung.convert.exceldatatolist.poiji;
import java.io.File;
import java.util.List;
import com.baeldung.convert.exceldatatolist.FoodInfo;
import com.poiji.bind.Poiji;
public class ExcelDataToListOfObjectsPOIJI {
public static List<FoodInfo> excelDataToListOfObjets_withPOIJI(String fileLocation){
return Poiji.fromExcel(new File(fileLocation), FoodInfo.class);
}
}

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apache-poi-3/src/main/resources/food_info.xls Normal file
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apache-poi-3/src/main/resources/food_info.xlsx Normal file
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53
apache-poi-3/src/test/java/com/baeldung/convert/exceldatatolist/ExcelDataToListOfObjectsUnitTest.java Normal file
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@ -0,0 +1,53 @@
package com.baeldung.convert.exceldatatolist;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.List;
// import org.junit.jupiter.api.Test;
// import static org.junit.jupiter.api.Assertions.*;
import org.junit.Test;
import com.baeldung.convert.exceldatatolist.fastexcel.ExcelDataToListOfObjectsFastExcel;
import com.baeldung.convert.exceldatatolist.jexcelapi.ExcelDataToListOfObjectsJxl;
import com.baeldung.convert.exceldatatolist.poi.ExcelDataToListApachePOI;
import com.baeldung.convert.exceldatatolist.poiji.ExcelDataToListOfObjectsPOIJI;
import jxl.read.biff.BiffException;
public class ExcelDataToListOfObjectsUnitTest {
@Test
public void whenParsingExcelFileWithPOIJI_thenConvertsToList() throws IOException {
List<FoodInfo> foodInfoList = ExcelDataToListOfObjectsPOIJI.excelDataToListOfObjets_withPOIJI("src/main/resources/food_info.xlsx");
assertEquals("Beverages", foodInfoList.get(0).getCategory());
assertEquals("Dairy", foodInfoList.get(3).getCategory());
}
@Test
public void whenParsingExcelFileWithApachePOI_thenConvertsToList() throws IOException {
List<FoodInfo> foodInfoList = ExcelDataToListApachePOI.excelDataToListOfObjets_withApachePOI("src/main/resources/food_info.xlsx");
assertEquals("Beverages", foodInfoList.get(0).getCategory());
assertEquals("Dairy", foodInfoList.get(3).getCategory());
}
@Test
public void whenParsingExcelFileWithFastExcel_thenConvertsToList() throws IOException {
List<FoodInfo> foodInfoList = ExcelDataToListOfObjectsFastExcel.excelDataToListOfObjets_withFastExcel("src/main/resources/food_info.xlsx");
assertEquals("Beverages", foodInfoList.get(0).getCategory());
assertEquals("Dairy", foodInfoList.get(3).getCategory());
}
@Test
public void whenParsingExcelFileWithJxl_thenConvertsToList() throws IOException, BiffException {
List<FoodInfo> foodInfoList = ExcelDataToListOfObjectsJxl.excelDataToListOfObjets_withJxl("src/main/resources/food_info.xls");
assertEquals("Beverages", foodInfoList.get(0).getCategory());
assertEquals("Dairy", foodInfoList.get(3).getCategory());
}
}

70
apache-poi-3/src/test/java/com/baeldung/poi/excel/expandcolumn/ExpandColumnUnitTest.java Normal file
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@ -0,0 +1,70 @@
package com.baeldung.poi.excel.expandcolumn;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.*;
import java.io.IOException;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
class ExpandColumnUnitTest {
private Workbook workbook;
private Sheet sheet;
@BeforeEach
void prepareSpreadsheet() {
workbook = new XSSFWorkbook();
sheet = workbook.createSheet();
Row headerRow = sheet.createRow(0);
Cell headerCell1 = headerRow.createCell(0);
headerCell1.setCellValue("Full Name");
Cell headerCell2 = headerRow.createCell(1);
headerCell2.setCellValue("Abbreviation");
Row dataRow = sheet.createRow(1);
Cell dataCell1 = dataRow.createCell(0);
dataCell1.setCellValue("Java Virtual Machine");
Cell dataCell2 = dataRow.createCell(1);
dataCell2.setCellValue("JVM");
dataRow = sheet.createRow(2);
dataCell1 = dataRow.createCell(0);
dataCell1.setCellValue("Java Runtime Environment");
dataCell2 = dataRow.createCell(1);
dataCell2.setCellValue("JRE");
}
@Test
void whenSetColumnWidth_thenColumnSetToTheSpecifiedWidth() {
Row row = sheet.getRow(2);
String cellValue = row.getCell(0).getStringCellValue();
int targetWidth = cellValue.length() * 256;
sheet.setColumnWidth(0, targetWidth);
assertEquals(targetWidth, sheet.getColumnWidth(0));
}
@Test
void whenAutoSizeColumn_thenColumnExpands() {
int originalWidth = sheet.getColumnWidth(0);
sheet.autoSizeColumn(0);
assertThat(sheet.getColumnWidth(0)).isGreaterThan(originalWidth);
}
@AfterEach
void cleanup() throws IOException {
workbook.close();
}
}

1
apache-velocity/pom.xml
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@ -63,7 +63,6 @@
<org.apache.httpcomponents.version>4.5.2</org.apache.httpcomponents.version>
<velocity-version>1.7</velocity-version>
<velocity-tools-version>2.0</velocity-tools-version>
<maven-war-plugin.version>3.3.2</maven-war-plugin.version>
</properties>
</project>

1
asm/pom.xml
View File

@ -49,7 +49,6 @@
<properties>
<asm.version>5.2</asm.version>
<maven-jar-plugin.version>2.4</maven-jar-plugin.version>
</properties>
</project>

2
aws-modules/aws-dynamodb/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
/target/
.idea/

7
aws-modules/aws-dynamodb/README.md Normal file
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@ -0,0 +1,7 @@
## AWS DYNAMODB
This module contains articles about AWS DynamoDB
### Relevant articles
- [Integration Testing with a Local DynamoDB Instance](https://www.baeldung.com/dynamodb-local-integration-tests)

87
aws-modules/aws-dynamodb/pom.xml Normal file
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@ -0,0 +1,87 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>aws-dynamodb</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>aws-dynamodb</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>aws-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>${aws-java-sdk.version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>DynamoDBLocal</artifactId>
<version>${dynamodblocal.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${maven-shade-plugin.version}</version>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-plugins-version}</version>
<executions>
<execution>
<id>copy</id>
<phase>compile</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<includeScope></includeScope>
<includeTypes>so,dll,dylib</includeTypes>
<outputDirectory>native-libs</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<gson.version>2.8.0</gson.version>
<dynamodblocal.version>1.21.1</dynamodblocal.version>
<maven-plugins-version>3.1.1</maven-plugins-version>
</properties>
</project>

0
aws-modules/aws-miscellaneous/src/main/java/com/baeldung/dynamodb/entity/ProductInfo.java → aws-modules/aws-dynamodb/src/main/java/com/baeldung/dynamodb/entity/ProductInfo.java
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0
aws-modules/aws-miscellaneous/src/main/java/com/baeldung/dynamodb/repository/AbstractRepository.java → aws-modules/aws-dynamodb/src/main/java/com/baeldung/dynamodb/repository/AbstractRepository.java
View File

0
aws-modules/aws-miscellaneous/src/main/java/com/baeldung/dynamodb/repository/ProductInfoRepository.java → aws-modules/aws-dynamodb/src/main/java/com/baeldung/dynamodb/repository/ProductInfoRepository.java
View File

0
annotations/annotation-user/src/main/resources/logback.xml → aws-modules/aws-dynamodb/src/main/resources/logback.xml
View File

8
aws-modules/aws-miscellaneous/src/test/java/com/baeldung/dynamodb/ProductInfoRepositoryIntegrationTest.java → aws-modules/aws-dynamodb/src/test/java/com/baeldung/dynamodb/ProductInfoRepositoryIntegrationTest.java
View File

@ -49,10 +49,10 @@ public class ProductInfoRepositoryIntegrationTest {
@BeforeClass
public static void setupClass() {
Properties testProperties = loadFromFileInClasspath("test.properties")
.filter(properties -> !isEmpty(properties.getProperty(AWS_ACCESSKEY)))
.filter(properties -> !isEmpty(properties.getProperty(AWS_SECRETKEY)))
.filter(properties -> !isEmpty(properties.getProperty(DYNAMODB_ENDPOINT)))
.orElseThrow(() -> new RuntimeException("Unable to get all of the required test property values"));
.filter(properties -> !isEmpty(properties.getProperty(AWS_ACCESSKEY)))
.filter(properties -> !isEmpty(properties.getProperty(AWS_SECRETKEY)))
.filter(properties -> !isEmpty(properties.getProperty(DYNAMODB_ENDPOINT)))
.orElseThrow(() -> new RuntimeException("Unable to get all of the required test property values"));
String amazonAWSAccessKey = testProperties.getProperty(AWS_ACCESSKEY);
String amazonAWSSecretKey = testProperties.getProperty(AWS_SECRETKEY);

0
aws-modules/aws-miscellaneous/src/test/java/com/baeldung/dynamodb/rule/LocalDbCreationRule.java → aws-modules/aws-dynamodb/src/test/java/com/baeldung/dynamodb/rule/LocalDbCreationRule.java
View File

0
aws-modules/aws-miscellaneous/src/test/resources/test.properties → aws-modules/aws-dynamodb/src/test/resources/test.properties
View File

36
aws-modules/aws-miscellaneous/pom.xml
View File

@ -16,31 +16,9 @@
<dependencies>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>${aws-java-sdk.version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-core</artifactId>
<version>${aws-lambda-java-core.version}</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-events</artifactId>
<version>${aws-lambda-java-events.version}</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
<groupId>software.amazon.awssdk</groupId>
<artifactId>aws-sdk-java</artifactId>
<version>${aws-java-sdk-v2.version}</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
@ -52,12 +30,6 @@
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>DynamoDBLocal</artifactId>
<version>${dynamodblocal.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
@ -101,8 +73,6 @@
</build>
<properties>
<aws-lambda-java-events.version>1.3.0</aws-lambda-java-events.version>
<aws-lambda-java-core.version>1.1.0</aws-lambda-java-core.version>
<gson.version>2.8.0</gson.version>
<dynamodblocal.version>1.21.1</dynamodblocal.version>
<commons-codec-version>1.10.L001</commons-codec-version>

180
aws-modules/aws-miscellaneous/src/main/java/com/baeldung/ec2/EC2Application.java
View File

@ -2,136 +2,148 @@ package com.baeldung.ec2;
import java.util.Arrays;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.ec2.AmazonEC2;
import com.amazonaws.services.ec2.AmazonEC2ClientBuilder;
import com.amazonaws.services.ec2.model.AuthorizeSecurityGroupIngressRequest;
import com.amazonaws.services.ec2.model.CreateKeyPairRequest;
import com.amazonaws.services.ec2.model.CreateKeyPairResult;
import com.amazonaws.services.ec2.model.CreateSecurityGroupRequest;
import com.amazonaws.services.ec2.model.DescribeInstancesRequest;
import com.amazonaws.services.ec2.model.DescribeInstancesResult;
import com.amazonaws.services.ec2.model.DescribeKeyPairsRequest;
import com.amazonaws.services.ec2.model.DescribeKeyPairsResult;
import com.amazonaws.services.ec2.model.IpPermission;
import com.amazonaws.services.ec2.model.IpRange;
import com.amazonaws.services.ec2.model.MonitorInstancesRequest;
import com.amazonaws.services.ec2.model.RebootInstancesRequest;
import com.amazonaws.services.ec2.model.RunInstancesRequest;
import com.amazonaws.services.ec2.model.StartInstancesRequest;
import com.amazonaws.services.ec2.model.StopInstancesRequest;
import com.amazonaws.services.ec2.model.UnmonitorInstancesRequest;
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ec2.Ec2Client;
import software.amazon.awssdk.services.ec2.model.AuthorizeSecurityGroupIngressRequest;
import software.amazon.awssdk.services.ec2.model.CreateKeyPairRequest;
import software.amazon.awssdk.services.ec2.model.CreateKeyPairResponse;
import software.amazon.awssdk.services.ec2.model.CreateSecurityGroupRequest;
import software.amazon.awssdk.services.ec2.model.DescribeInstancesRequest;
import software.amazon.awssdk.services.ec2.model.DescribeInstancesResponse;
import software.amazon.awssdk.services.ec2.model.DescribeKeyPairsRequest;
import software.amazon.awssdk.services.ec2.model.DescribeKeyPairsResponse;
import software.amazon.awssdk.services.ec2.model.IpPermission;
import software.amazon.awssdk.services.ec2.model.IpRange;
import software.amazon.awssdk.services.ec2.model.MonitorInstancesRequest;
import software.amazon.awssdk.services.ec2.model.RebootInstancesRequest;
import software.amazon.awssdk.services.ec2.model.RunInstancesRequest;
import software.amazon.awssdk.services.ec2.model.RunInstancesResponse;
import software.amazon.awssdk.services.ec2.model.StartInstancesRequest;
import software.amazon.awssdk.services.ec2.model.StartInstancesResponse;
import software.amazon.awssdk.services.ec2.model.StopInstancesRequest;
import software.amazon.awssdk.services.ec2.model.UnmonitorInstancesRequest;
public class EC2Application {
private static final AWSCredentials credentials;
static {
// put your accesskey and secretkey here
credentials = new BasicAWSCredentials(
"<AWS accesskey>",
"<AWS secretkey>"
);
}
public static void main(String[] args) {
// Set up the client
AmazonEC2 ec2Client = AmazonEC2ClientBuilder.standard()
.withCredentials(new AWSStaticCredentialsProvider(credentials))
.withRegion(Regions.US_EAST_1)
Ec2Client ec2Client = Ec2Client.builder()
.credentialsProvider(ProfileCredentialsProvider.create("default"))
.region(Region.US_EAST_1)
.build();
// Create a security group
CreateSecurityGroupRequest createSecurityGroupRequest = new CreateSecurityGroupRequest().withGroupName("BaeldungSecurityGroup")
.withDescription("Baeldung Security Group");
CreateSecurityGroupRequest createSecurityGroupRequest = CreateSecurityGroupRequest.builder()
.groupName("BaeldungSecurityGroup")
.description("Baeldung Security Group")
.build();
ec2Client.createSecurityGroup(createSecurityGroupRequest);
// Allow HTTP and SSH traffic
IpRange ipRange1 = new IpRange().withCidrIp("0.0.0.0/0");
IpRange ipRange1 = IpRange.builder()
.cidrIp("0.0.0.0/0")
.build();
IpPermission ipPermission1 = new IpPermission().withIpv4Ranges(Arrays.asList(new IpRange[] { ipRange1 }))
.withIpProtocol("tcp")
.withFromPort(80)
.withToPort(80);
IpPermission ipPermission1 = IpPermission.builder()
.ipRanges(Arrays.asList(ipRange1))
.ipProtocol("tcp")
.fromPort(80)
.toPort(80)
.build();
IpPermission ipPermission2 = new IpPermission().withIpv4Ranges(Arrays.asList(new IpRange[] { ipRange1 }))
.withIpProtocol("tcp")
.withFromPort(22)
.withToPort(22);
IpPermission ipPermission2 = IpPermission.builder()
.ipRanges(Arrays.asList(ipRange1))
.ipProtocol("tcp")
.fromPort(22)
.toPort(22)
.build();
AuthorizeSecurityGroupIngressRequest authorizeSecurityGroupIngressRequest = new AuthorizeSecurityGroupIngressRequest()
.withGroupName("BaeldungSecurityGroup")
.withIpPermissions(ipPermission1, ipPermission2);
AuthorizeSecurityGroupIngressRequest authorizeSecurityGroupIngressRequest = AuthorizeSecurityGroupIngressRequest
.builder()
.groupName("BaeldungSecurityGroup")
.ipPermissions(ipPermission1, ipPermission2)
.build();
ec2Client.authorizeSecurityGroupIngress(authorizeSecurityGroupIngressRequest);
// Create KeyPair
CreateKeyPairRequest createKeyPairRequest = new CreateKeyPairRequest()
.withKeyName("baeldung-key-pair");
CreateKeyPairResult createKeyPairResult = ec2Client.createKeyPair(createKeyPairRequest);
String privateKey = createKeyPairResult
.getKeyPair()
.getKeyMaterial(); // make sure you keep it, the private key, Amazon doesn't store the private key
CreateKeyPairRequest createKeyPairRequest = CreateKeyPairRequest.builder()
.keyName("baeldung-key-pair")
.build();
CreateKeyPairResponse createKeyPairResponse = ec2Client.createKeyPair(createKeyPairRequest);
String privateKey = createKeyPairResponse.keyMaterial();
// make sure you keep it, the private key, Amazon doesn't store the private key
// See what key-pairs you've got
DescribeKeyPairsRequest describeKeyPairsRequest = new DescribeKeyPairsRequest();
DescribeKeyPairsResult describeKeyPairsResult = ec2Client.describeKeyPairs(describeKeyPairsRequest);
DescribeKeyPairsRequest describeKeyPairsRequest = DescribeKeyPairsRequest.builder()
.build();
DescribeKeyPairsResponse describeKeyPairsResponse = ec2Client.describeKeyPairs(describeKeyPairsRequest);
// Launch an Amazon Instance
RunInstancesRequest runInstancesRequest = new RunInstancesRequest().withImageId("ami-97785bed") // https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AMIs.html | https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/usingsharedamis-finding.html
.withInstanceType("t2.micro") // https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html
.withMinCount(1)
.withMaxCount(1)
.withKeyName("baeldung-key-pair") // optional - if not present, can't connect to instance
.withSecurityGroups("BaeldungSecurityGroup");
RunInstancesRequest runInstancesRequest = RunInstancesRequest.builder()
.imageId("ami-97785bed")
.instanceType("t2.micro") // https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html
.minCount(1)
.maxCount(1)
.keyName("baeldung-key-pair") // optional - if not present, can't connect to instance
.securityGroups("BaeldungSecurityGroup")
.build();
String yourInstanceId = ec2Client.runInstances(runInstancesRequest).getReservation().getInstances().get(0).getInstanceId();
RunInstancesResponse runInstancesResponse = ec2Client.runInstances(runInstancesRequest);
String yourInstanceId = runInstancesResponse.instances().get(0).instanceId();
// Start an Instance
StartInstancesRequest startInstancesRequest = new StartInstancesRequest()
.withInstanceIds(yourInstanceId);
StartInstancesRequest startInstancesRequest = StartInstancesRequest.builder()
.instanceIds(yourInstanceId)
.build();
StartInstancesResponse startInstancesResponse = ec2Client.startInstances(startInstancesRequest);
ec2Client.startInstances(startInstancesRequest);
// Monitor Instances
MonitorInstancesRequest monitorInstancesRequest = new MonitorInstancesRequest()
.withInstanceIds(yourInstanceId);
MonitorInstancesRequest monitorInstancesRequest = MonitorInstancesRequest.builder()
.instanceIds(yourInstanceId)
.build();
ec2Client.monitorInstances(monitorInstancesRequest);
UnmonitorInstancesRequest unmonitorInstancesRequest = new UnmonitorInstancesRequest()
.withInstanceIds(yourInstanceId);
UnmonitorInstancesRequest unmonitorInstancesRequest = UnmonitorInstancesRequest.builder()
.instanceIds(yourInstanceId)
.build();
ec2Client.unmonitorInstances(unmonitorInstancesRequest);
// Reboot an Instance
RebootInstancesRequest rebootInstancesRequest = new RebootInstancesRequest()
.withInstanceIds(yourInstanceId);
RebootInstancesRequest rebootInstancesRequest = RebootInstancesRequest.builder()
.instanceIds(yourInstanceId)
.build();
ec2Client.rebootInstances(rebootInstancesRequest);
// Stop an Instance
StopInstancesRequest stopInstancesRequest = new StopInstancesRequest()
.withInstanceIds(yourInstanceId);
StopInstancesRequest stopInstancesRequest = StopInstancesRequest.builder()
.instanceIds(yourInstanceId)
.build();
ec2Client.stopInstances(stopInstancesRequest)
.getStoppingInstances()
.stoppingInstances()
.get(0)
.getPreviousState()
.getName();
.previousState()
.name();
// Describe an Instance
DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest();
DescribeInstancesResult response = ec2Client.describeInstances(describeInstancesRequest);
System.out.println(response.getReservations()
DescribeInstancesRequest describeInstancesRequest = DescribeInstancesRequest.builder().build();
DescribeInstancesResponse response = ec2Client.describeInstances(describeInstancesRequest);
System.out.println(response.reservations()
.get(0)
.getInstances()
.instances()
.get(0)
.getKernelId());
.kernelId());
}
}

107
aws-modules/aws-miscellaneous/src/main/java/com/baeldung/rds/AWSRDSService.java
View File

@ -1,13 +1,5 @@
package com.baeldung.rds;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.rds.AmazonRDS;
import com.amazonaws.services.rds.AmazonRDSClientBuilder;
import com.amazonaws.services.rds.model.*;
import java.io.IOException;
import java.io.InputStream;
import java.sql.*;
@ -16,12 +8,22 @@ import java.util.Properties;
import java.util.UUID;
import java.util.logging.Logger;
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rds.RdsClient;
import software.amazon.awssdk.services.rds.model.CreateDbInstanceRequest;
import software.amazon.awssdk.services.rds.model.CreateDbInstanceResponse;
import software.amazon.awssdk.services.rds.model.DBInstance;
import software.amazon.awssdk.services.rds.model.DeleteDbInstanceRequest;
import software.amazon.awssdk.services.rds.model.DeleteDbInstanceResponse;
import software.amazon.awssdk.services.rds.model.DescribeDbInstancesResponse;
import software.amazon.awssdk.services.rds.model.Endpoint;
public class AWSRDSService {
final static Logger logger = Logger.getLogger(AWSRDSService.class.getName());
private AWSCredentialsProvider credentials;
private AmazonRDS amazonRDS;
private RdsClient rdsClient;
private String db_username;
private String db_password;
private String db_database;
@ -34,22 +36,17 @@ public class AWSRDSService {
* **/
public AWSRDSService() throws IOException {
//Init RDS client with credentials and region.
credentials = new
AWSStaticCredentialsProvider(new
BasicAWSCredentials("<ACCESS_KEY>",
"<SECRET_KEY>"));
amazonRDS = AmazonRDSClientBuilder.standard().withCredentials(credentials)
.withRegion(Regions.AP_SOUTHEAST_2).build();
Properties prop = new Properties();
InputStream input = AWSRDSService.class.getClassLoader().getResourceAsStream("db.properties");
prop.load(input);
db_username = prop.getProperty("db_username");
db_password = prop.getProperty("db_password");
db_database = prop.getProperty("db_database");
}
public AWSRDSService(AmazonRDS amazonRDS){
this.amazonRDS = amazonRDS;
rdsClient = RdsClient.builder()
.region(Region.AP_SOUTHEAST_2)
.credentialsProvider(ProfileCredentialsProvider.create("default"))
.build();
}
/**
@ -60,29 +57,29 @@ public class AWSRDSService {
public String launchInstance() {
String identifier = "";
CreateDBInstanceRequest request = new CreateDBInstanceRequest();
// RDS instance name
request.setDBInstanceIdentifier("Sydney");
request.setEngine("postgres");
request.setMultiAZ(false);
request.setMasterUsername(db_username);
request.setMasterUserPassword(db_password);
request.setDBName(db_database);
request.setStorageType("gp2");
request.setAllocatedStorage(10);
CreateDbInstanceRequest instanceRequest = CreateDbInstanceRequest.builder()
.dbInstanceIdentifier("Sydney")
.engine("postgres")
.multiAZ(false)
.masterUsername(db_username)
.masterUserPassword(db_password)
.dbName(db_database)
.storageType("gp2")
.allocatedStorage(10)
.build();
DBInstance instance = amazonRDS.createDBInstance(request);
CreateDbInstanceResponse createDbInstanceResponse = rdsClient.createDBInstance(instanceRequest);
// Information about the new RDS instance
identifier = instance.getDBInstanceIdentifier();
String status = instance.getDBInstanceStatus();
Endpoint endpoint = instance.getEndpoint();
String endpoint_url = "Endpoint URL not available yet.";
identifier = createDbInstanceResponse.dbInstance().dbInstanceIdentifier();
String status = createDbInstanceResponse.dbInstance().dbInstanceStatus();
Endpoint endpoint = createDbInstanceResponse.dbInstance().endpoint();
String endpointUrl = "Endpoint URL not available yet.";
if (endpoint != null) {
endpoint_url = endpoint.toString();
endpointUrl = endpoint.toString();
}
logger.info(identifier + "\t" + status);
logger.info(endpoint_url);
logger.info(endpointUrl);
return identifier;
@ -90,44 +87,44 @@ public class AWSRDSService {
// Describe DB instances
public void listInstances() {
DescribeDBInstancesResult result = amazonRDS.describeDBInstances();
List<DBInstance> instances = result.getDBInstances();
DescribeDbInstancesResponse response = rdsClient.describeDBInstances();
List<DBInstance> instances = response.dbInstances();
for (DBInstance instance : instances) {
// Information about each RDS instance
String identifier = instance.getDBInstanceIdentifier();
String engine = instance.getEngine();
String status = instance.getDBInstanceStatus();
Endpoint endpoint = instance.getEndpoint();
String endpoint_url = "Endpoint URL not available yet.";
String identifier = instance.dbInstanceIdentifier();
String engine = instance.engine();
String status = instance.dbInstanceStatus();
Endpoint endpoint = instance.endpoint();
String endpointUrl = "Endpoint URL not available yet.";
if (endpoint != null) {
endpoint_url = endpoint.toString();
endpointUrl = endpoint.toString();
}
logger.info(identifier + "\t" + engine + "\t" + status);
logger.info("\t" + endpoint_url);
logger.info("\t" + endpointUrl);
}
}
//Delete RDS instance
public void terminateInstance(String identifier) {
DeleteDBInstanceRequest request = new DeleteDBInstanceRequest();
request.setDBInstanceIdentifier(identifier);
request.setSkipFinalSnapshot(true);
DeleteDbInstanceRequest request = DeleteDbInstanceRequest.builder()
.dbInstanceIdentifier(identifier)
.skipFinalSnapshot(true)
.build();
// Delete the RDS instance
DBInstance instance = amazonRDS.deleteDBInstance(request);
DeleteDbInstanceResponse response = rdsClient.deleteDBInstance(request);
// Information about the RDS instance being deleted
String status = instance.getDBInstanceStatus();
Endpoint endpoint = instance.getEndpoint();
String endpoint_url = "Endpoint URL not available yet.";
String status = response.dbInstance().dbInstanceStatus();
Endpoint endpoint = response.dbInstance().endpoint();
String endpointUrl = "Endpoint URL not available yet.";
if (endpoint != null) {
endpoint_url = endpoint.toString();
endpointUrl = endpoint.toString();
}
logger.info(identifier + "\t" + status);
logger.info(endpoint_url);
logger.info(endpointUrl);
}

206
aws-modules/aws-miscellaneous/src/main/java/com/baeldung/sqs/SQSApplication.java
View File

@ -5,140 +5,190 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.sqs.AmazonSQSClientBuilder;
import com.amazonaws.services.sqs.model.CreateQueueRequest;
import com.amazonaws.services.sqs.model.DeleteMessageRequest;
import com.amazonaws.services.sqs.model.GetQueueAttributesRequest;
import com.amazonaws.services.sqs.model.GetQueueAttributesResult;
import com.amazonaws.services.sqs.model.MessageAttributeValue;
import com.amazonaws.services.sqs.model.ReceiveMessageRequest;
import com.amazonaws.services.sqs.model.SendMessageBatchRequest;
import com.amazonaws.services.sqs.model.SendMessageRequest;
import com.amazonaws.services.sqs.model.SetQueueAttributesRequest;
import com.amazonaws.services.sqs.model.SendMessageBatchRequestEntry;
import com.amazonaws.services.sqs.model.Message;
import com.amazonaws.services.sqs.AmazonSQS;
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.sqs.SqsClient;
import software.amazon.awssdk.services.sqs.model.CreateQueueRequest;
import software.amazon.awssdk.services.sqs.model.DeleteMessageRequest;
import software.amazon.awssdk.services.sqs.model.GetQueueAttributesRequest;
import software.amazon.awssdk.services.sqs.model.GetQueueAttributesResponse;
import software.amazon.awssdk.services.sqs.model.GetQueueUrlRequest;
import software.amazon.awssdk.services.sqs.model.GetQueueUrlResponse;
import software.amazon.awssdk.services.sqs.model.Message;
import software.amazon.awssdk.services.sqs.model.MessageAttributeValue;
import software.amazon.awssdk.services.sqs.model.QueueAttributeName;
import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest;
import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequest;
import software.amazon.awssdk.services.sqs.model.SendMessageBatchRequestEntry;
import software.amazon.awssdk.services.sqs.model.SendMessageRequest;
import software.amazon.awssdk.services.sqs.model.SetQueueAttributesRequest;
public class SQSApplication {
private static final AWSCredentials credentials;
static {
// put your accesskey and secretkey here
credentials = new BasicAWSCredentials(
"<AWS accesskey>",
"<AWS secretkey>"
);
}
private static final String STANDARD_QUEUE_NAME = "baeldung-queue";
private static final String FIFO_QUEUE_NAME = "baeldung-queue.fifo";
private static final String DEAD_LETTER_QUEUE_NAME = "baeldung-dead-letter-queue";
public static void main(String[] args) {
// Set up the client
AmazonSQS sqs = AmazonSQSClientBuilder.standard()
.withCredentials(new AWSStaticCredentialsProvider(credentials))
.withRegion(Regions.US_EAST_1)
SqsClient sqsClient = SqsClient.builder()
.region(Region.US_EAST_1)
.credentialsProvider(ProfileCredentialsProvider.create())
.build();
// Create a standard queue
CreateQueueRequest createStandardQueueRequest = CreateQueueRequest.builder()
.queueName(STANDARD_QUEUE_NAME)
.build();
CreateQueueRequest createStandardQueueRequest = new CreateQueueRequest("baeldung-queue");
String standardQueueUrl = sqs.createQueue(createStandardQueueRequest)
.getQueueUrl();
sqsClient.createQueue(createStandardQueueRequest);
System.out.println("\nGet queue url");
GetQueueUrlResponse getQueueUrlResponse = sqsClient.getQueueUrl(GetQueueUrlRequest.builder()
.queueName(STANDARD_QUEUE_NAME)
.build());
String standardQueueUrl = getQueueUrlResponse.queueUrl();
System.out.println(standardQueueUrl);
// Create a fifo queue
Map<QueueAttributeName, String> queueAttributes = new HashMap<>();
queueAttributes.put(QueueAttributeName.FIFO_QUEUE, "true");
queueAttributes.put(QueueAttributeName.CONTENT_BASED_DEDUPLICATION, "true");
Map<String, String> queueAttributes = new HashMap<String, String>();
queueAttributes.put("FifoQueue", "true");
queueAttributes.put("ContentBasedDeduplication", "true");
CreateQueueRequest createFifoQueueRequest = CreateQueueRequest.builder()
.queueName(FIFO_QUEUE_NAME)
.attributes(queueAttributes)
.build();
CreateQueueRequest createFifoQueueRequest = new CreateQueueRequest("baeldung-queue.fifo").withAttributes(queueAttributes);
String fifoQueueUrl = sqs.createQueue(createFifoQueueRequest)
.getQueueUrl();
sqsClient.createQueue(createFifoQueueRequest);
GetQueueUrlResponse getFifoQueueUrlResponse = sqsClient.getQueueUrl(GetQueueUrlRequest.builder()
.queueName(FIFO_QUEUE_NAME)
.build());
String fifoQueueUrl = getFifoQueueUrlResponse.queueUrl();
System.out.println(fifoQueueUrl);
// Set up a dead letter queue
CreateQueueRequest createDeadLetterQueueRequest = CreateQueueRequest.builder()
.queueName(DEAD_LETTER_QUEUE_NAME)
.build();
String deadLetterQueueUrl = sqs.createQueue("baeldung-dead-letter-queue")
.getQueueUrl();
String deadLetterQueueUrl = sqsClient.createQueue(createDeadLetterQueueRequest)
.queueUrl();
GetQueueAttributesResult deadLetterQueueAttributes = sqs.getQueueAttributes(new GetQueueAttributesRequest(deadLetterQueueUrl).withAttributeNames("QueueArn"));
GetQueueAttributesRequest getQueueAttributesRequest = GetQueueAttributesRequest.builder()
.queueUrl(deadLetterQueueUrl)
.attributeNames(QueueAttributeName.QUEUE_ARN)
.build();
String deadLetterQueueARN = deadLetterQueueAttributes.getAttributes()
GetQueueAttributesResponse deadLetterQueueAttributes = sqsClient.getQueueAttributes(getQueueAttributesRequest);
String deadLetterQueueARN = deadLetterQueueAttributes.attributes()
.get("QueueArn");
SetQueueAttributesRequest queueAttributesRequest = new SetQueueAttributesRequest().withQueueUrl(standardQueueUrl)
.addAttributesEntry("RedrivePolicy", "{\"maxReceiveCount\":\"2\", " + "\"deadLetterTargetArn\":\"" + deadLetterQueueARN + "\"}");
Map<QueueAttributeName, String> attributes = new HashMap<>();
attributes.put(QueueAttributeName.REDRIVE_POLICY, "{\"maxReceiveCount\":\"5\", \"deadLetterTargetArn\":\"" + deadLetterQueueARN + "\"}");
sqs.setQueueAttributes(queueAttributesRequest);
SetQueueAttributesRequest queueAttributesRequest = SetQueueAttributesRequest.builder()
.queueUrl(standardQueueUrl)
.attributes(attributes)
.build();
sqsClient.setQueueAttributes(queueAttributesRequest);
// Send a message to a standard queue
Map<String, MessageAttributeValue> messageAttributes = new HashMap<>();
MessageAttributeValue messageAttributeValue = MessageAttributeValue.builder()
.stringValue("This is an attribute")
.dataType("String")
.build();
messageAttributes.put("AttributeOne", new MessageAttributeValue().withStringValue("This is an attribute")
.withDataType("String"));
messageAttributes.put("AttributeOne", messageAttributeValue);
SendMessageRequest sendMessageStandardQueue = new SendMessageRequest().withQueueUrl(standardQueueUrl)
.withMessageBody("A simple message.")
.withDelaySeconds(30) // Message will arrive in the queue after 30 seconds. We can use this only in standard queues
.withMessageAttributes(messageAttributes);
SendMessageRequest sendMessageStandardQueue = SendMessageRequest.builder()
.queueUrl(standardQueueUrl)
.messageBody("A simple message.")
.delaySeconds(30) // Message will arrive in the queue after 30 seconds. We can use this only in standard queues
.messageAttributes(messageAttributes)
.build();
sqs.sendMessage(sendMessageStandardQueue);
sqsClient.sendMessage(sendMessageStandardQueue);
// Send a message to a fifo queue
SendMessageRequest sendMessageFifoQueue = new SendMessageRequest().withQueueUrl(fifoQueueUrl)
.withMessageBody("FIFO Queue")
.withMessageGroupId("baeldung-group-1")
.withMessageAttributes(messageAttributes);
SendMessageRequest sendMessageFifoQueue = SendMessageRequest.builder()
.queueUrl(fifoQueueUrl)
.messageBody("FIFO Queue")
.messageGroupId("baeldung-group-1")
.messageAttributes(messageAttributes)
.build();
sqs.sendMessage(sendMessageFifoQueue);
sqsClient.sendMessage(sendMessageFifoQueue);
// Send multiple messages
List<SendMessageBatchRequestEntry> messageEntries = new ArrayList<>();
messageEntries.add(new SendMessageBatchRequestEntry().withId("id-1")
.withMessageBody("batch-1")
.withMessageGroupId("baeldung-group-1"));
messageEntries.add(new SendMessageBatchRequestEntry().withId("id-2")
.withMessageBody("batch-2")
.withMessageGroupId("baeldung-group-1"));
SendMessageBatchRequestEntry messageBatchRequestEntry1 = SendMessageBatchRequestEntry.builder()
.id("id-1")
.messageBody("batch-1")
.messageGroupId("baeldung-group-1")
.build();
SendMessageBatchRequest sendMessageBatchRequest = new SendMessageBatchRequest(fifoQueueUrl, messageEntries);
sqs.sendMessageBatch(sendMessageBatchRequest);
SendMessageBatchRequestEntry messageBatchRequestEntry2 = SendMessageBatchRequestEntry.builder()
.id("id-2")
.messageBody("batch-2")
.messageGroupId("baeldung-group-1")
.build();
messageEntries.add(messageBatchRequestEntry1);
messageEntries.add(messageBatchRequestEntry2);
SendMessageBatchRequest sendMessageBatchRequest = SendMessageBatchRequest.builder()
.queueUrl(fifoQueueUrl)
.entries(messageEntries)
.build();
sqsClient.sendMessageBatch(sendMessageBatchRequest);
// Read a message from a queue
ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(fifoQueueUrl).withWaitTimeSeconds(10) // Long polling;
.withMaxNumberOfMessages(1); // Max is 10
ReceiveMessageRequest receiveMessageRequest = ReceiveMessageRequest.builder()
.waitTimeSeconds(10)
.maxNumberOfMessages(10)
.build();
List<Message> sqsMessages = sqs.receiveMessage(receiveMessageRequest)
.getMessages();
List<Message> sqsMessages = sqsClient.receiveMessage(receiveMessageRequest)
.messages();
sqsMessages.get(0)
.getAttributes();
.attributes();
sqsMessages.get(0)
.getBody();
.body();
// Delete a message from a queue
DeleteMessageRequest deleteMessageRequest = DeleteMessageRequest.builder()
.queueUrl(fifoQueueUrl)
.receiptHandle(sqsMessages.get(0)
.receiptHandle())
.build();
sqs.deleteMessage(new DeleteMessageRequest().withQueueUrl(fifoQueueUrl)
.withReceiptHandle(sqsMessages.get(0)
.getReceiptHandle()));
sqsClient.deleteMessage(deleteMessageRequest);
// Monitoring
GetQueueAttributesRequest getQueueAttributesRequest = new GetQueueAttributesRequest(standardQueueUrl).withAttributeNames("All");
GetQueueAttributesResult getQueueAttributesResult = sqs.getQueueAttributes(getQueueAttributesRequest);
System.out.println(String.format("The number of messages on the queue: %s", getQueueAttributesResult.getAttributes()
GetQueueAttributesRequest getQueueAttributesRequestForMonitoring = GetQueueAttributesRequest.builder()
.queueUrl(standardQueueUrl)
.build();
GetQueueAttributesResponse attributesResponse = sqsClient.getQueueAttributes(getQueueAttributesRequestForMonitoring);
System.out.println(String.format("The number of messages on the queue: %s", attributesResponse.attributes()
.get("ApproximateNumberOfMessages")));
System.out.println(String.format("The number of messages in flight: %s", getQueueAttributesResult.getAttributes()
System.out.println(String.format("The number of messages in flight: %s", attributesResponse.attributes()
.get("ApproximateNumberOfMessagesNotVisible")));
}

43
aws-modules/aws-s3-update-object/pom.xml Normal file
View File

@ -0,0 +1,43 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>aws-s3-update-object</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>aws-s3-update-object</name>
<description>Project demonstrating overwriting of S3 objects</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-boot-2</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>${aws-java-sdk-version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<properties>
<aws-java-sdk-version>1.12.523</aws-java-sdk-version>
</properties>
</project>

13
aws-modules/aws-s3-update-object/src/main/java/com/baeldung/awss3updateobject/AwsS3UpdateObjectApplication.java Normal file
View File

@ -0,0 +1,13 @@
package com.baeldung.awss3updateobject;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AwsS3UpdateObjectApplication {
public static void main(String[] args) {
SpringApplication.run(AwsS3UpdateObjectApplication.class, args);
}
}

24
aws-modules/aws-s3-update-object/src/main/java/com/baeldung/awss3updateobject/controller/FileController.java Normal file
View File

@ -0,0 +1,24 @@
package com.baeldung.awss3updateobject.controller;
import com.baeldung.awss3updateobject.service.FileService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
@RestController
@RequestMapping("api/v1/file")
public class FileController {
@Autowired
FileService fileService;
@PostMapping("/upload")
public String uploadFile(@RequestParam("file") MultipartFile multipartFile) throws Exception {
return this.fileService.uploadFile(multipartFile);
}
@PostMapping("/update")
public String updateFile(@RequestParam("file") MultipartFile multipartFile, @RequestParam("filePath") String exitingFilePath) throws Exception {
return this.fileService.updateFile(multipartFile, exitingFilePath);
}
}

80
aws-modules/aws-s3-update-object/src/main/java/com/baeldung/awss3updateobject/service/FileService.java Normal file
View File

@ -0,0 +1,80 @@
package com.baeldung.awss3updateobject.service;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.PostConstruct;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
@Service
public class FileService {
private static final Logger logger = LoggerFactory.getLogger(FileService.class);
public AmazonS3 amazonS3;
@Value("${aws.s3bucket}")
public String awsS3Bucket;
@PostConstruct
private void init(){
AWSCredentials credentials = new BasicAWSCredentials(
"AWS AccessKey",
"AWS secretKey"
);
this.amazonS3 = AmazonS3ClientBuilder.standard()
.withRegion(Regions.fromName("us-east-1"))
.withCredentials(new AWSStaticCredentialsProvider(credentials))
.build();
}
public String uploadFile(MultipartFile multipartFile) throws Exception {
String key = "/documents/" + multipartFile.getOriginalFilename();
return this.uploadDocument(this.awsS3Bucket, key, multipartFile);
}
public String updateFile(MultipartFile multipartFile, String key) throws Exception {
return this.uploadDocument(this.awsS3Bucket, key, multipartFile);
}
private String uploadDocument(String s3bucket, String key, MultipartFile multipartFile) throws Exception {
try {
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentType(multipartFile.getContentType());
Map<String, String> attributes = new HashMap<>();
attributes.put("document-content-size", String.valueOf(multipartFile.getSize()));
metadata.setUserMetadata(attributes);
InputStream documentStream = multipartFile.getInputStream();
PutObjectResult putObjectResult = this.amazonS3.putObject(new PutObjectRequest(s3bucket, key, documentStream, metadata));
S3Object s3Object = this.amazonS3.getObject(s3bucket, key);
logger.info("Last Modified: " + s3Object.getObjectMetadata().getLastModified());
return key;
} catch (AmazonS3Exception ex) {
if (ex.getErrorCode().equalsIgnoreCase("NoSuchBucket")) {
String msg = String.format("No bucket found with name %s", s3bucket);
throw new Exception(msg);
} else if (ex.getErrorCode().equalsIgnoreCase("AccessDenied")) {
String msg = String.format("Access denied to S3 bucket %s", s3bucket);
throw new Exception(msg);
}
throw ex;
} catch (IOException ex) {
String msg = String.format("Error saving file %s to AWS S3 bucket %s", key, s3bucket);
throw new Exception(msg);
}
}
}

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