Merge remote-tracking branch 'upstream/master'
This commit is contained in:
pazis
commit
ad2fa55268
@ -4,7 +4,7 @@ import org.apache.commons.lang3.StringUtils;
|
||||
|
||||
public class PrintTriangleExamples {
|
||||
|
||||
public static String printARightAngledTriangle(int N) {
|
||||
public static String printARightTriangle(int N) {
|
||||
StringBuilder result = new StringBuilder();
|
||||
for (int r = 1; r <= N; r++) {
|
||||
for (int j = 1; j <= r; j++) {
|
||||
@ -29,6 +29,17 @@ public class PrintTriangleExamples {
|
||||
return result.toString();
|
||||
}
|
||||
|
||||
public static String printAnIsoscelesTriangleUsingStringUtils(int N) {
|
||||
StringBuilder result = new StringBuilder();
|
||||
|
||||
for (int r = 1; r <= N; r++) {
|
||||
result.append(StringUtils.repeat(' ', N - r));
|
||||
result.append(StringUtils.repeat('*', 2 * r - 1));
|
||||
result.append(System.lineSeparator());
|
||||
}
|
||||
return result.toString();
|
||||
}
|
||||
|
||||
public static String printAnIsoscelesTriangleUsingSubstring(int N) {
|
||||
StringBuilder result = new StringBuilder();
|
||||
String helperString = StringUtils.repeat(' ', N - 1) + StringUtils.repeat('*', N * 2 - 1);
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||||
@ -41,8 +52,9 @@ public class PrintTriangleExamples {
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||||
}
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|
||||
public static void main(String[] args) {
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System.out.println(printARightAngledTriangle(5));
|
||||
System.out.println(printARightTriangle(5));
|
||||
System.out.println(printAnIsoscelesTriangle(5));
|
||||
System.out.println(printAnIsoscelesTriangleUsingStringUtils(5));
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||||
System.out.println(printAnIsoscelesTriangleUsingSubstring(5));
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}
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||||
|
||||
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||||
@ -9,9 +9,9 @@ import static org.junit.Assert.assertEquals;
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||||
|
||||
@RunWith(JUnitParamsRunner.class)
|
||||
public class PrintTriangleExamplesUnitTest {
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||||
|
||||
private static Object[][] rightAngledTriangles() {
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||||
String expected0 = "";
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||||
|
||||
private static Object[][] rightTriangles() {
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||||
String expected0 = "";
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||||
|
||||
String expected2 = "*" + System.lineSeparator()
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+ "**" + System.lineSeparator();
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@ -39,9 +39,9 @@ public class PrintTriangleExamplesUnitTest {
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}
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@Test
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@Parameters(method = "rightAngledTriangles")
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||||
public void whenPrintARightAngledTriangleIsCalled_ThenTheCorrectStringIsReturned(int nrOfRows, String expected) {
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String actual = PrintTriangleExamples.printARightAngledTriangle(nrOfRows);
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@Parameters(method = "rightTriangles")
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||||
public void whenPrintARightTriangleIsCalled_ThenTheCorrectStringIsReturned(int nrOfRows, String expected) {
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String actual = PrintTriangleExamples.printARightTriangle(nrOfRows);
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assertEquals(expected, actual);
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}
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@ -81,6 +81,14 @@ public class PrintTriangleExamplesUnitTest {
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assertEquals(expected, actual);
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}
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@Test
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@Parameters(method = "isoscelesTriangles")
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||||
public void whenPrintAnIsoscelesTriangleUsingStringUtilsIsCalled_ThenTheCorrectStringIsReturned(int nrOfRows, String expected) {
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String actual = PrintTriangleExamples.printAnIsoscelesTriangleUsingStringUtils(nrOfRows);
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|
||||
assertEquals(expected, actual);
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}
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|
||||
@Test
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@Parameters(method = "isoscelesTriangles")
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|
||||
@ -1,4 +1,4 @@
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package com.baeldung.algorithms.stringsortingbynumber;
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package com.baeldung.algorithms.sort.bynumber;
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|
||||
import java.util.Comparator;
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||||
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||||
@ -1,6 +1,6 @@
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||||
package com.baeldung.algorithms.stringsortingbynumber;
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package com.baeldung.algorithms.sort.bynumber;
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||||
|
||||
import com.baeldung.algorithms.stringsortingbynumber.NaturalOrderComparators;
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||||
import com.baeldung.algorithms.sort.bynumber.NaturalOrderComparators;
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||||
import org.junit.Test;
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|
||||
import java.util.ArrayList;
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150
apache-spark/data/iris.data
Normal file
150
apache-spark/data/iris.data
Normal file
@ -0,0 +1,150 @@
|
||||
5.1,3.5,1.4,0.2,Iris-setosa
|
||||
4.9,3.0,1.4,0.2,Iris-setosa
|
||||
4.7,3.2,1.3,0.2,Iris-setosa
|
||||
4.6,3.1,1.5,0.2,Iris-setosa
|
||||
5.0,3.6,1.4,0.2,Iris-setosa
|
||||
5.4,3.9,1.7,0.4,Iris-setosa
|
||||
4.6,3.4,1.4,0.3,Iris-setosa
|
||||
5.0,3.4,1.5,0.2,Iris-setosa
|
||||
4.4,2.9,1.4,0.2,Iris-setosa
|
||||
4.9,3.1,1.5,0.1,Iris-setosa
|
||||
5.4,3.7,1.5,0.2,Iris-setosa
|
||||
4.8,3.4,1.6,0.2,Iris-setosa
|
||||
4.8,3.0,1.4,0.1,Iris-setosa
|
||||
4.3,3.0,1.1,0.1,Iris-setosa
|
||||
5.8,4.0,1.2,0.2,Iris-setosa
|
||||
5.7,4.4,1.5,0.4,Iris-setosa
|
||||
5.4,3.9,1.3,0.4,Iris-setosa
|
||||
5.1,3.5,1.4,0.3,Iris-setosa
|
||||
5.7,3.8,1.7,0.3,Iris-setosa
|
||||
5.1,3.8,1.5,0.3,Iris-setosa
|
||||
5.4,3.4,1.7,0.2,Iris-setosa
|
||||
5.1,3.7,1.5,0.4,Iris-setosa
|
||||
4.6,3.6,1.0,0.2,Iris-setosa
|
||||
5.1,3.3,1.7,0.5,Iris-setosa
|
||||
4.8,3.4,1.9,0.2,Iris-setosa
|
||||
5.0,3.0,1.6,0.2,Iris-setosa
|
||||
5.0,3.4,1.6,0.4,Iris-setosa
|
||||
5.2,3.5,1.5,0.2,Iris-setosa
|
||||
5.2,3.4,1.4,0.2,Iris-setosa
|
||||
4.7,3.2,1.6,0.2,Iris-setosa
|
||||
4.8,3.1,1.6,0.2,Iris-setosa
|
||||
5.4,3.4,1.5,0.4,Iris-setosa
|
||||
5.2,4.1,1.5,0.1,Iris-setosa
|
||||
5.5,4.2,1.4,0.2,Iris-setosa
|
||||
4.9,3.1,1.5,0.1,Iris-setosa
|
||||
5.0,3.2,1.2,0.2,Iris-setosa
|
||||
5.5,3.5,1.3,0.2,Iris-setosa
|
||||
4.9,3.1,1.5,0.1,Iris-setosa
|
||||
4.4,3.0,1.3,0.2,Iris-setosa
|
||||
5.1,3.4,1.5,0.2,Iris-setosa
|
||||
5.0,3.5,1.3,0.3,Iris-setosa
|
||||
4.5,2.3,1.3,0.3,Iris-setosa
|
||||
4.4,3.2,1.3,0.2,Iris-setosa
|
||||
5.0,3.5,1.6,0.6,Iris-setosa
|
||||
5.1,3.8,1.9,0.4,Iris-setosa
|
||||
4.8,3.0,1.4,0.3,Iris-setosa
|
||||
5.1,3.8,1.6,0.2,Iris-setosa
|
||||
4.6,3.2,1.4,0.2,Iris-setosa
|
||||
5.3,3.7,1.5,0.2,Iris-setosa
|
||||
5.0,3.3,1.4,0.2,Iris-setosa
|
||||
7.0,3.2,4.7,1.4,Iris-versicolor
|
||||
6.4,3.2,4.5,1.5,Iris-versicolor
|
||||
6.9,3.1,4.9,1.5,Iris-versicolor
|
||||
5.5,2.3,4.0,1.3,Iris-versicolor
|
||||
6.5,2.8,4.6,1.5,Iris-versicolor
|
||||
5.7,2.8,4.5,1.3,Iris-versicolor
|
||||
6.3,3.3,4.7,1.6,Iris-versicolor
|
||||
4.9,2.4,3.3,1.0,Iris-versicolor
|
||||
6.6,2.9,4.6,1.3,Iris-versicolor
|
||||
5.2,2.7,3.9,1.4,Iris-versicolor
|
||||
5.0,2.0,3.5,1.0,Iris-versicolor
|
||||
5.9,3.0,4.2,1.5,Iris-versicolor
|
||||
6.0,2.2,4.0,1.0,Iris-versicolor
|
||||
6.1,2.9,4.7,1.4,Iris-versicolor
|
||||
5.6,2.9,3.6,1.3,Iris-versicolor
|
||||
6.7,3.1,4.4,1.4,Iris-versicolor
|
||||
5.6,3.0,4.5,1.5,Iris-versicolor
|
||||
5.8,2.7,4.1,1.0,Iris-versicolor
|
||||
6.2,2.2,4.5,1.5,Iris-versicolor
|
||||
5.6,2.5,3.9,1.1,Iris-versicolor
|
||||
5.9,3.2,4.8,1.8,Iris-versicolor
|
||||
6.1,2.8,4.0,1.3,Iris-versicolor
|
||||
6.3,2.5,4.9,1.5,Iris-versicolor
|
||||
6.1,2.8,4.7,1.2,Iris-versicolor
|
||||
6.4,2.9,4.3,1.3,Iris-versicolor
|
||||
6.6,3.0,4.4,1.4,Iris-versicolor
|
||||
6.8,2.8,4.8,1.4,Iris-versicolor
|
||||
6.7,3.0,5.0,1.7,Iris-versicolor
|
||||
6.0,2.9,4.5,1.5,Iris-versicolor
|
||||
5.7,2.6,3.5,1.0,Iris-versicolor
|
||||
5.5,2.4,3.8,1.1,Iris-versicolor
|
||||
5.5,2.4,3.7,1.0,Iris-versicolor
|
||||
5.8,2.7,3.9,1.2,Iris-versicolor
|
||||
6.0,2.7,5.1,1.6,Iris-versicolor
|
||||
5.4,3.0,4.5,1.5,Iris-versicolor
|
||||
6.0,3.4,4.5,1.6,Iris-versicolor
|
||||
6.7,3.1,4.7,1.5,Iris-versicolor
|
||||
6.3,2.3,4.4,1.3,Iris-versicolor
|
||||
5.6,3.0,4.1,1.3,Iris-versicolor
|
||||
5.5,2.5,4.0,1.3,Iris-versicolor
|
||||
5.5,2.6,4.4,1.2,Iris-versicolor
|
||||
6.1,3.0,4.6,1.4,Iris-versicolor
|
||||
5.8,2.6,4.0,1.2,Iris-versicolor
|
||||
5.0,2.3,3.3,1.0,Iris-versicolor
|
||||
5.6,2.7,4.2,1.3,Iris-versicolor
|
||||
5.7,3.0,4.2,1.2,Iris-versicolor
|
||||
5.7,2.9,4.2,1.3,Iris-versicolor
|
||||
6.2,2.9,4.3,1.3,Iris-versicolor
|
||||
5.1,2.5,3.0,1.1,Iris-versicolor
|
||||
5.7,2.8,4.1,1.3,Iris-versicolor
|
||||
6.3,3.3,6.0,2.5,Iris-virginica
|
||||
5.8,2.7,5.1,1.9,Iris-virginica
|
||||
7.1,3.0,5.9,2.1,Iris-virginica
|
||||
6.3,2.9,5.6,1.8,Iris-virginica
|
||||
6.5,3.0,5.8,2.2,Iris-virginica
|
||||
7.6,3.0,6.6,2.1,Iris-virginica
|
||||
4.9,2.5,4.5,1.7,Iris-virginica
|
||||
7.3,2.9,6.3,1.8,Iris-virginica
|
||||
6.7,2.5,5.8,1.8,Iris-virginica
|
||||
7.2,3.6,6.1,2.5,Iris-virginica
|
||||
6.5,3.2,5.1,2.0,Iris-virginica
|
||||
6.4,2.7,5.3,1.9,Iris-virginica
|
||||
6.8,3.0,5.5,2.1,Iris-virginica
|
||||
5.7,2.5,5.0,2.0,Iris-virginica
|
||||
5.8,2.8,5.1,2.4,Iris-virginica
|
||||
6.4,3.2,5.3,2.3,Iris-virginica
|
||||
6.5,3.0,5.5,1.8,Iris-virginica
|
||||
7.7,3.8,6.7,2.2,Iris-virginica
|
||||
7.7,2.6,6.9,2.3,Iris-virginica
|
||||
6.0,2.2,5.0,1.5,Iris-virginica
|
||||
6.9,3.2,5.7,2.3,Iris-virginica
|
||||
5.6,2.8,4.9,2.0,Iris-virginica
|
||||
7.7,2.8,6.7,2.0,Iris-virginica
|
||||
6.3,2.7,4.9,1.8,Iris-virginica
|
||||
6.7,3.3,5.7,2.1,Iris-virginica
|
||||
7.2,3.2,6.0,1.8,Iris-virginica
|
||||
6.2,2.8,4.8,1.8,Iris-virginica
|
||||
6.1,3.0,4.9,1.8,Iris-virginica
|
||||
6.4,2.8,5.6,2.1,Iris-virginica
|
||||
7.2,3.0,5.8,1.6,Iris-virginica
|
||||
7.4,2.8,6.1,1.9,Iris-virginica
|
||||
7.9,3.8,6.4,2.0,Iris-virginica
|
||||
6.4,2.8,5.6,2.2,Iris-virginica
|
||||
6.3,2.8,5.1,1.5,Iris-virginica
|
||||
6.1,2.6,5.6,1.4,Iris-virginica
|
||||
7.7,3.0,6.1,2.3,Iris-virginica
|
||||
6.3,3.4,5.6,2.4,Iris-virginica
|
||||
6.4,3.1,5.5,1.8,Iris-virginica
|
||||
6.0,3.0,4.8,1.8,Iris-virginica
|
||||
6.9,3.1,5.4,2.1,Iris-virginica
|
||||
6.7,3.1,5.6,2.4,Iris-virginica
|
||||
6.9,3.1,5.1,2.3,Iris-virginica
|
||||
5.8,2.7,5.1,1.9,Iris-virginica
|
||||
6.8,3.2,5.9,2.3,Iris-virginica
|
||||
6.7,3.3,5.7,2.5,Iris-virginica
|
||||
6.7,3.0,5.2,2.3,Iris-virginica
|
||||
6.3,2.5,5.0,1.9,Iris-virginica
|
||||
6.5,3.0,5.2,2.0,Iris-virginica
|
||||
6.2,3.4,5.4,2.3,Iris-virginica
|
||||
5.9,3.0,5.1,1.8,Iris-virginica
|
||||
BIN
apache-spark/model/logistic-regression/data/._SUCCESS.crc
Normal file
BIN
apache-spark/model/logistic-regression/data/._SUCCESS.crc
Normal file
Binary file not shown.
Binary file not shown.
Binary file not shown.
BIN
apache-spark/model/logistic-regression/metadata/._SUCCESS.crc
Normal file
BIN
apache-spark/model/logistic-regression/metadata/._SUCCESS.crc
Normal file
Binary file not shown.
BIN
apache-spark/model/logistic-regression/metadata/.part-00000.crc
Normal file
BIN
apache-spark/model/logistic-regression/metadata/.part-00000.crc
Normal file
Binary file not shown.
@ -0,0 +1 @@
|
||||
{"class":"org.apache.spark.mllib.classification.LogisticRegressionModel","version":"1.0","numFeatures":4,"numClasses":3}
|
||||
@ -1,31 +1,32 @@
|
||||
<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>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>apache-spark</artifactId>
|
||||
<version>1.0-SNAPSHOT</version>
|
||||
<name>apache-spark</name>
|
||||
<packaging>jar</packaging>
|
||||
<url>http://maven.apache.org</url>
|
||||
<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>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>apache-spark</artifactId>
|
||||
<version>1.0-SNAPSHOT</version>
|
||||
<name>apache-spark</name>
|
||||
<packaging>jar</packaging>
|
||||
<url>http://maven.apache.org</url>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
<artifactId>spark-core_2.11</artifactId>
|
||||
<version>${org.apache.spark.spark-core.version}</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
<artifactId>spark-sql_2.11</artifactId>
|
||||
<version>${org.apache.spark.spark-sql.version}</version>
|
||||
<scope>provided</scope>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
<artifactId>spark-core_2.11</artifactId>
|
||||
<version>${org.apache.spark.spark-core.version}</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
<artifactId>spark-sql_2.11</artifactId>
|
||||
<version>${org.apache.spark.spark-sql.version}</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
@ -33,6 +34,12 @@
|
||||
<version>${org.apache.spark.spark-streaming.version}</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
<artifactId>spark-mllib_2.11</artifactId>
|
||||
<version>${org.apache.spark.spark-mllib.version}</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.spark</groupId>
|
||||
<artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
|
||||
@ -48,46 +55,47 @@
|
||||
<artifactId>spark-cassandra-connector-java_2.11</artifactId>
|
||||
<version>${com.datastax.spark.spark-cassandra-connector-java.version}</version>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
</dependencies>
|
||||
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-compiler-plugin</artifactId>
|
||||
<version>${maven-compiler-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>${java.version}</source>
|
||||
<target>${java.version}</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
<plugin>
|
||||
<artifactId>maven-assembly-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>single</goal>
|
||||
</goals>
|
||||
</execution>
|
||||
</executions>
|
||||
<configuration>
|
||||
<descriptorRefs>
|
||||
<descriptorRef>jar-with-dependencies</descriptorRef>
|
||||
</descriptorRefs>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-compiler-plugin</artifactId>
|
||||
<version>${maven-compiler-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>${java.version}</source>
|
||||
<target>${java.version}</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
<plugin>
|
||||
<artifactId>maven-assembly-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>single</goal>
|
||||
</goals>
|
||||
</execution>
|
||||
</executions>
|
||||
<configuration>
|
||||
<descriptorRefs>
|
||||
<descriptorRef>jar-with-dependencies</descriptorRef>
|
||||
</descriptorRefs>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
<properties>
|
||||
<org.apache.spark.spark-core.version>2.3.0</org.apache.spark.spark-core.version>
|
||||
<org.apache.spark.spark-sql.version>2.3.0</org.apache.spark.spark-sql.version>
|
||||
<org.apache.spark.spark-streaming.version>2.3.0</org.apache.spark.spark-streaming.version>
|
||||
<org.apache.spark.spark-streaming-kafka.version>2.3.0</org.apache.spark.spark-streaming-kafka.version>
|
||||
<com.datastax.spark.spark-cassandra-connector.version>2.3.0</com.datastax.spark.spark-cassandra-connector.version>
|
||||
<com.datastax.spark.spark-cassandra-connector-java.version>1.5.2</com.datastax.spark.spark-cassandra-connector-java.version>
|
||||
<properties>
|
||||
<org.apache.spark.spark-core.version>2.3.0</org.apache.spark.spark-core.version>
|
||||
<org.apache.spark.spark-sql.version>2.3.0</org.apache.spark.spark-sql.version>
|
||||
<org.apache.spark.spark-streaming.version>2.3.0</org.apache.spark.spark-streaming.version>
|
||||
<org.apache.spark.spark-mllib.version>2.3.0</org.apache.spark.spark-mllib.version>
|
||||
<org.apache.spark.spark-streaming-kafka.version>2.3.0</org.apache.spark.spark-streaming-kafka.version>
|
||||
<com.datastax.spark.spark-cassandra-connector.version>2.3.0</com.datastax.spark.spark-cassandra-connector.version>
|
||||
<com.datastax.spark.spark-cassandra-connector-java.version>1.5.2</com.datastax.spark.spark-cassandra-connector-java.version>
|
||||
<maven-compiler-plugin.version>3.2</maven-compiler-plugin.version>
|
||||
</properties>
|
||||
</properties>
|
||||
|
||||
</project>
|
||||
|
||||
@ -0,0 +1,111 @@
|
||||
package com.baeldung.ml;
|
||||
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
|
||||
import org.apache.log4j.Level;
|
||||
import org.apache.log4j.Logger;
|
||||
import org.apache.spark.SparkConf;
|
||||
import org.apache.spark.api.java.JavaPairRDD;
|
||||
import org.apache.spark.api.java.JavaRDD;
|
||||
import org.apache.spark.api.java.JavaSparkContext;
|
||||
import org.apache.spark.mllib.classification.LogisticRegressionModel;
|
||||
import org.apache.spark.mllib.classification.LogisticRegressionWithLBFGS;
|
||||
import org.apache.spark.mllib.evaluation.MulticlassMetrics;
|
||||
import org.apache.spark.mllib.linalg.Matrix;
|
||||
import org.apache.spark.mllib.linalg.Vector;
|
||||
import org.apache.spark.mllib.linalg.Vectors;
|
||||
import org.apache.spark.mllib.regression.LabeledPoint;
|
||||
import org.apache.spark.mllib.stat.MultivariateStatisticalSummary;
|
||||
import org.apache.spark.mllib.stat.Statistics;
|
||||
|
||||
import scala.Tuple2;
|
||||
|
||||
public class MachineLearningApp {
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
// 1. Setting the Spark Context
|
||||
SparkConf conf = new SparkConf().setAppName("Main")
|
||||
.setMaster("local[2]")
|
||||
.set("spark.executor.memory", "3g")
|
||||
.set("spark.driver.memory", "3g");
|
||||
JavaSparkContext sc = new JavaSparkContext(conf);
|
||||
Logger.getLogger("org")
|
||||
.setLevel(Level.OFF);
|
||||
Logger.getLogger("akka")
|
||||
.setLevel(Level.OFF);
|
||||
|
||||
// 2. Loading the Data-set
|
||||
String dataFile = "data\\iris.data";
|
||||
JavaRDD<String> data = sc.textFile(dataFile);
|
||||
|
||||
// 3. Exploratory Data Analysis
|
||||
// 3.1. Creating Vector of Input Data
|
||||
JavaRDD<Vector> inputData = data.map(line -> {
|
||||
String[] parts = line.split(",");
|
||||
double[] v = new double[parts.length - 1];
|
||||
for (int i = 0; i < parts.length - 1; i++) {
|
||||
v[i] = Double.parseDouble(parts[i]);
|
||||
}
|
||||
return Vectors.dense(v);
|
||||
});
|
||||
// 3.2. Performing Statistical Analysis
|
||||
MultivariateStatisticalSummary summary = Statistics.colStats(inputData.rdd());
|
||||
System.out.println("Summary Mean:");
|
||||
System.out.println(summary.mean());
|
||||
System.out.println("Summary Variance:");
|
||||
System.out.println(summary.variance());
|
||||
System.out.println("Summary Non-zero:");
|
||||
System.out.println(summary.numNonzeros());
|
||||
// 3.3. Performing Correlation Analysis
|
||||
Matrix correlMatrix = Statistics.corr(inputData.rdd(), "pearson");
|
||||
System.out.println("Correlation Matrix:");
|
||||
System.out.println(correlMatrix.toString());
|
||||
|
||||
// 4. Data Preparation
|
||||
// 4.1. Creating Map for Textual Output Labels
|
||||
Map<String, Integer> map = new HashMap<String, Integer>();
|
||||
map.put("Iris-setosa", 0);
|
||||
map.put("Iris-versicolor", 1);
|
||||
map.put("Iris-virginica", 2);
|
||||
// 4.2. Creating LabeledPoint of Input and Output Data
|
||||
JavaRDD<LabeledPoint> parsedData = data.map(line -> {
|
||||
String[] parts = line.split(",");
|
||||
double[] v = new double[parts.length - 1];
|
||||
for (int i = 0; i < parts.length - 1; i++) {
|
||||
v[i] = Double.parseDouble(parts[i]);
|
||||
}
|
||||
return new LabeledPoint(map.get(parts[parts.length - 1]), Vectors.dense(v));
|
||||
});
|
||||
|
||||
// 5. Data Splitting into 80% Training and 20% Test Sets
|
||||
JavaRDD<LabeledPoint>[] splits = parsedData.randomSplit(new double[] { 0.8, 0.2 }, 11L);
|
||||
JavaRDD<LabeledPoint> trainingData = splits[0].cache();
|
||||
JavaRDD<LabeledPoint> testData = splits[1];
|
||||
|
||||
// 6. Modeling
|
||||
// 6.1. Model Training
|
||||
LogisticRegressionModel model = new LogisticRegressionWithLBFGS().setNumClasses(3)
|
||||
.run(trainingData.rdd());
|
||||
// 6.2. Model Evaluation
|
||||
JavaPairRDD<Object, Object> predictionAndLabels = testData.mapToPair(p -> new Tuple2<>(model.predict(p.features()), p.label()));
|
||||
MulticlassMetrics metrics = new MulticlassMetrics(predictionAndLabels.rdd());
|
||||
double accuracy = metrics.accuracy();
|
||||
System.out.println("Model Accuracy on Test Data: " + accuracy);
|
||||
|
||||
// 7. Model Saving and Loading
|
||||
// 7.1. Model Saving
|
||||
model.save(sc.sc(), "model\\logistic-regression");
|
||||
// 7.2. Model Loading
|
||||
LogisticRegressionModel sameModel = LogisticRegressionModel.load(sc.sc(), "model\\logistic-regression");
|
||||
// 7.3. Prediction on New Data
|
||||
Vector newData = Vectors.dense(new double[] { 1, 1, 1, 1 });
|
||||
double prediction = sameModel.predict(newData);
|
||||
System.out.println("Model Prediction on New Data = " + prediction);
|
||||
|
||||
// 8. Clean-up
|
||||
sc.close();
|
||||
}
|
||||
|
||||
}
|
||||
31
bazel/WORKSPACE
Normal file
31
bazel/WORKSPACE
Normal file
@ -0,0 +1,31 @@
|
||||
|
||||
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_jar")
|
||||
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
|
||||
|
||||
|
||||
RULES_JVM_EXTERNAL_TAG = "2.0.1"
|
||||
RULES_JVM_EXTERNAL_SHA = "55e8d3951647ae3dffde22b4f7f8dee11b3f70f3f89424713debd7076197eaca"
|
||||
|
||||
http_archive(
|
||||
name = "rules_jvm_external",
|
||||
strip_prefix = "rules_jvm_external-%s" % RULES_JVM_EXTERNAL_TAG,
|
||||
sha256 = RULES_JVM_EXTERNAL_SHA,
|
||||
url = "https://github.com/bazelbuild/rules_jvm_external/archive/%s.zip" % RULES_JVM_EXTERNAL_TAG,
|
||||
)
|
||||
|
||||
load("@rules_jvm_external//:defs.bzl", "maven_install")
|
||||
|
||||
maven_install(
|
||||
artifacts = [
|
||||
"org.apache.commons:commons-lang3:3.9"
|
||||
],
|
||||
repositories = [
|
||||
"https://repo1.maven.org/maven2",
|
||||
]
|
||||
)
|
||||
|
||||
http_jar (
|
||||
name = "apache-commons-lang",
|
||||
url = "https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/3.9/commons-lang3-3.9.jar"
|
||||
)
|
||||
|
||||
7
bazel/bazelapp/BUILD
Normal file
7
bazel/bazelapp/BUILD
Normal file
@ -0,0 +1,7 @@
|
||||
|
||||
java_binary (
|
||||
name = "BazelApp",
|
||||
srcs = glob(["src/main/java/com/baeldung/*.java"]),
|
||||
main_class = "com.baeldung.BazelApp",
|
||||
deps = ["//bazelgreeting:greeter", "@maven//:org_apache_commons_commons_lang3"]
|
||||
)
|
||||
28
bazel/bazelapp/pom.xml
Normal file
28
bazel/bazelapp/pom.xml
Normal file
@ -0,0 +1,28 @@
|
||||
<?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">
|
||||
<parent>
|
||||
<artifactId>bazel</artifactId>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
<artifactId>bazelapp</artifactId>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>bazelgreeting</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.commons</groupId>
|
||||
<artifactId>commons-lang3</artifactId>
|
||||
<version>3.9</version>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
|
||||
</project>
|
||||
15
bazel/bazelapp/src/main/java/com/baeldung/BazelApp.java
Normal file
15
bazel/bazelapp/src/main/java/com/baeldung/BazelApp.java
Normal file
@ -0,0 +1,15 @@
|
||||
package com.baeldung;
|
||||
|
||||
import com.baeldung.Greetings;
|
||||
import org.apache.commons.lang3.StringUtils;
|
||||
|
||||
public class BazelApp {
|
||||
|
||||
public static void main(String ... args) {
|
||||
Greetings greetings = new Greetings();
|
||||
|
||||
System.out.println(greetings.greet("Bazel"));
|
||||
|
||||
System.out.println(StringUtils.lowerCase("Bazel"));
|
||||
}
|
||||
}
|
||||
6
bazel/bazelgreeting/BUILD
Normal file
6
bazel/bazelgreeting/BUILD
Normal file
@ -0,0 +1,6 @@
|
||||
|
||||
java_library (
|
||||
name = "greeter",
|
||||
srcs = glob(["src/main/java/com/baeldung/*.java"]),
|
||||
visibility = ["//bazelapp:__pkg__"]
|
||||
)
|
||||
15
bazel/bazelgreeting/pom.xml
Normal file
15
bazel/bazelgreeting/pom.xml
Normal file
@ -0,0 +1,15 @@
|
||||
<?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">
|
||||
<parent>
|
||||
<artifactId>bazel</artifactId>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
<artifactId>bazelgreeting</artifactId>
|
||||
|
||||
|
||||
</project>
|
||||
@ -0,0 +1,8 @@
|
||||
package com.baeldung;
|
||||
|
||||
public class Greetings {
|
||||
|
||||
public String greet(String name) {
|
||||
return "Hello ".concat(name);
|
||||
}
|
||||
}
|
||||
20
bazel/pom.xml
Normal file
20
bazel/pom.xml
Normal file
@ -0,0 +1,20 @@
|
||||
<?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">
|
||||
<parent>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
<artifactId>bazel</artifactId>
|
||||
<packaging>pom</packaging>
|
||||
<modules>
|
||||
<module>bazelgreeting</module>
|
||||
<module>bazelapp</module>
|
||||
</modules>
|
||||
|
||||
|
||||
</project>
|
||||
@ -0,0 +1,11 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
public class SequenceGenerator {
|
||||
private int currentValue = 0;
|
||||
|
||||
public int getNextSequence() throws InterruptedException {
|
||||
currentValue = currentValue + 1;
|
||||
Thread.sleep(500);
|
||||
return currentValue;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,18 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
import com.google.common.util.concurrent.Monitor;
|
||||
|
||||
public class SequenceGeneratorUsingMonitor extends SequenceGenerator {
|
||||
|
||||
private Monitor monitor = new Monitor();
|
||||
|
||||
@Override
|
||||
public int getNextSequence() throws InterruptedException {
|
||||
monitor.enter();
|
||||
try {
|
||||
return super.getNextSequence();
|
||||
} finally {
|
||||
monitor.leave();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,18 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
import java.util.concurrent.locks.ReentrantLock;
|
||||
|
||||
public class SequenceGeneratorUsingReentrantLock extends SequenceGenerator {
|
||||
|
||||
private ReentrantLock mutex = new ReentrantLock();
|
||||
|
||||
@Override
|
||||
public int getNextSequence() throws InterruptedException {
|
||||
try {
|
||||
mutex.lock();
|
||||
return super.getNextSequence();
|
||||
} finally {
|
||||
mutex.unlock();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,18 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
import java.util.concurrent.Semaphore;
|
||||
|
||||
public class SequenceGeneratorUsingSemaphore extends SequenceGenerator {
|
||||
|
||||
private Semaphore mutex = new Semaphore(1);
|
||||
|
||||
@Override
|
||||
public int getNextSequence() throws InterruptedException {
|
||||
try {
|
||||
mutex.acquire();
|
||||
return super.getNextSequence();
|
||||
} finally {
|
||||
mutex.release();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,12 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
public class SequenceGeneratorUsingSynchronizedBlock extends SequenceGenerator {
|
||||
|
||||
@Override
|
||||
public int getNextSequence() throws InterruptedException {
|
||||
synchronized (this) {
|
||||
return super.getNextSequence();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,10 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
public class SequenceGeneratorUsingSynchronizedMethod extends SequenceGenerator {
|
||||
|
||||
@Override
|
||||
public synchronized int getNextSequence() throws InterruptedException {
|
||||
return super.getNextSequence();
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,81 @@
|
||||
package com.baeldung.concurrent.mutex;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.HashSet;
|
||||
import java.util.List;
|
||||
import java.util.Set;
|
||||
import java.util.concurrent.ExecutorService;
|
||||
import java.util.concurrent.Executors;
|
||||
import java.util.concurrent.Future;
|
||||
import java.util.concurrent.TimeUnit;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import com.baeldung.concurrent.mutex.SequenceGenerator;
|
||||
import com.baeldung.concurrent.mutex.SequenceGeneratorUsingMonitor;
|
||||
import com.baeldung.concurrent.mutex.SequenceGeneratorUsingReentrantLock;
|
||||
import com.baeldung.concurrent.mutex.SequenceGeneratorUsingSemaphore;
|
||||
import com.baeldung.concurrent.mutex.SequenceGeneratorUsingSynchronizedBlock;
|
||||
import com.baeldung.concurrent.mutex.SequenceGeneratorUsingSynchronizedMethod;
|
||||
|
||||
public class MutexUnitTest {
|
||||
|
||||
private final int RANGE = 30;
|
||||
|
||||
@Test
|
||||
public void givenUnsafeSequenceGenerator_whenRaceCondition_thenUnexpectedBehavior() throws Exception {
|
||||
Set<Integer> uniqueSequences = getASetOFUniqueSequences(new SequenceGenerator());
|
||||
Assert.assertNotEquals(RANGE, uniqueSequences.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenSequenceGeneratorUsingSynchronizedMethod_whenRaceCondition_thenSuccess() throws Exception {
|
||||
Set<Integer> uniqueSequences = getASetOFUniqueSequences(new SequenceGeneratorUsingSynchronizedMethod());
|
||||
Assert.assertEquals(RANGE, uniqueSequences.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenSequenceGeneratorUsingSynchronizedBlock_whenRaceCondition_thenSuccess() throws Exception {
|
||||
Set<Integer> uniqueSequences = getASetOFUniqueSequences(new SequenceGeneratorUsingSynchronizedBlock());
|
||||
Assert.assertEquals(RANGE, uniqueSequences.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenSequenceGeneratorUsingReentrantLock_whenRaceCondition_thenSuccess() throws Exception {
|
||||
Set<Integer> uniqueSequences = getASetOFUniqueSequences(new SequenceGeneratorUsingReentrantLock());
|
||||
Assert.assertEquals(RANGE, uniqueSequences.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenSequenceGeneratorUsingSemaphore_whenRaceCondition_thenSuccess() throws Exception {
|
||||
Set<Integer> uniqueSequences = getASetOFUniqueSequences(new SequenceGeneratorUsingSemaphore());
|
||||
Assert.assertEquals(RANGE, uniqueSequences.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenSequenceGeneratorUsingMonitor_whenRaceCondition_thenSuccess() throws Exception {
|
||||
Set<Integer> uniqueSequences = getASetOFUniqueSequences(new SequenceGeneratorUsingMonitor());
|
||||
Assert.assertEquals(RANGE, uniqueSequences.size());
|
||||
}
|
||||
|
||||
private Set<Integer> getASetOFUniqueSequences(SequenceGenerator generator) throws Exception {
|
||||
ExecutorService executor = Executors.newFixedThreadPool(3);
|
||||
Set<Integer> uniqueSequences = new HashSet<>();
|
||||
List<Future<Integer>> futures = new ArrayList<>();
|
||||
|
||||
for (int i = 0; i < RANGE; i++) {
|
||||
futures.add(executor.submit(generator::getNextSequence));
|
||||
}
|
||||
|
||||
for (Future<Integer> future : futures) {
|
||||
uniqueSequences.add(future.get());
|
||||
}
|
||||
|
||||
executor.awaitTermination(15, TimeUnit.SECONDS);
|
||||
executor.shutdown();
|
||||
|
||||
return uniqueSequences;
|
||||
}
|
||||
|
||||
}
|
||||
@ -1,4 +1,4 @@
|
||||
package org.baeldung.java.io;
|
||||
package org.baeldung.writetofile;
|
||||
|
||||
import static org.junit.Assert.assertEquals;
|
||||
|
||||
65
core-java-modules/core-java-jndi/pom.xml
Normal file
65
core-java-modules/core-java-jndi/pom.xml
Normal file
@ -0,0 +1,65 @@
|
||||
<?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>
|
||||
|
||||
<groupId>com.baeldung.jndi</groupId>
|
||||
<artifactId>core-java-jndi</artifactId>
|
||||
<version>1.0-SNAPSHOT</version>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
<relativePath>../../</relativePath>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.junit.jupiter</groupId>
|
||||
<artifactId>junit-jupiter</artifactId>
|
||||
<version>5.5.1</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-core</artifactId>
|
||||
<version>5.0.9.RELEASE</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-context</artifactId>
|
||||
<version>5.0.9.RELEASE</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-jdbc</artifactId>
|
||||
<version>5.0.9.RELEASE</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.springframework</groupId>
|
||||
<artifactId>spring-test</artifactId>
|
||||
<version>5.0.9.RELEASE</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.h2database</groupId>
|
||||
<artifactId>h2</artifactId>
|
||||
<version>1.4.199</version>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-compiler-plugin</artifactId>
|
||||
<configuration>
|
||||
<source>1.8</source>
|
||||
<target>1.8</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</project>
|
||||
@ -0,0 +1,60 @@
|
||||
package com.baeldung.jndi;
|
||||
|
||||
import org.junit.jupiter.api.BeforeAll;
|
||||
import org.junit.jupiter.api.Test;
|
||||
import org.springframework.jdbc.datasource.DriverManagerDataSource;
|
||||
import org.springframework.jndi.JndiTemplate;
|
||||
import org.springframework.mock.jndi.SimpleNamingContextBuilder;
|
||||
|
||||
import javax.naming.*;
|
||||
import javax.sql.DataSource;
|
||||
|
||||
import java.util.Enumeration;
|
||||
|
||||
import static org.junit.jupiter.api.Assertions.*;
|
||||
|
||||
class JndiUnitTest {
|
||||
|
||||
private static InitialContext ctx;
|
||||
private static DriverManagerDataSource ds;
|
||||
|
||||
@BeforeAll
|
||||
static void setUp() throws Exception {
|
||||
SimpleNamingContextBuilder builder = new SimpleNamingContextBuilder();
|
||||
ds = new DriverManagerDataSource("jdbc:h2:mem:mydb");
|
||||
builder.activate();
|
||||
|
||||
JndiTemplate jndiTemplate = new JndiTemplate();
|
||||
ctx = (InitialContext) jndiTemplate.getContext();
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenACompositeName_whenAddingAnElement_thenNameIncludesIt() throws Exception {
|
||||
Name objectName = new CompositeName("java:comp/env/jdbc");
|
||||
|
||||
Enumeration<String> elements = objectName.getAll();
|
||||
while(elements.hasMoreElements()) {
|
||||
System.out.println(elements.nextElement());
|
||||
}
|
||||
|
||||
objectName.add("example");
|
||||
|
||||
assertEquals("env", objectName.get(1));
|
||||
assertEquals("example", objectName.get(objectName.size() - 1));
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenADataSource_whenAddingDriver_thenBind() throws Exception {
|
||||
ds.setDriverClassName("org.h2.Driver");
|
||||
ctx.bind("java:comp/env/jdbc/datasource", ds);
|
||||
}
|
||||
|
||||
@Test
|
||||
void givenContext_whenLookupByName_thenValidDataSource() throws Exception {
|
||||
DataSource ds = (DataSource) ctx.lookup("java:comp/env/jdbc/datasource");
|
||||
|
||||
assertNotNull(ds);
|
||||
assertNotNull(ds.getConnection());
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,42 @@
|
||||
package com.baeldung.jndi.exceptions;
|
||||
|
||||
import org.junit.jupiter.api.MethodOrderer;
|
||||
import org.junit.jupiter.api.Order;
|
||||
import org.junit.jupiter.api.Test;
|
||||
import org.junit.jupiter.api.TestMethodOrder;
|
||||
import org.springframework.jndi.JndiTemplate;
|
||||
import org.springframework.mock.jndi.SimpleNamingContextBuilder;
|
||||
|
||||
import javax.naming.InitialContext;
|
||||
import javax.naming.NameNotFoundException;
|
||||
import javax.naming.NoInitialContextException;
|
||||
|
||||
import static org.junit.jupiter.api.Assertions.assertThrows;
|
||||
|
||||
@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
|
||||
public class JndiExceptionsUnitTest {
|
||||
|
||||
@Test
|
||||
@Order(1)
|
||||
void givenNoContext_whenLookupObject_thenThrowNoInitialContext() {
|
||||
assertThrows(NoInitialContextException.class, () -> {
|
||||
JndiTemplate jndiTemplate = new JndiTemplate();
|
||||
InitialContext ctx = (InitialContext) jndiTemplate.getContext();
|
||||
ctx.lookup("java:comp/env/jdbc/datasource");
|
||||
}).printStackTrace();
|
||||
}
|
||||
|
||||
@Test
|
||||
@Order(2)
|
||||
void givenEmptyContext_whenLookupNotBounds_thenThrowNameNotFound() {
|
||||
assertThrows(NameNotFoundException.class, () -> {
|
||||
SimpleNamingContextBuilder builder = new SimpleNamingContextBuilder();
|
||||
builder.activate();
|
||||
|
||||
JndiTemplate jndiTemplate = new JndiTemplate();
|
||||
InitialContext ctx = (InitialContext) jndiTemplate.getContext();
|
||||
ctx.lookup("badJndiName");
|
||||
}).printStackTrace();
|
||||
}
|
||||
|
||||
}
|
||||
3
core-java-modules/core-java-networking-2/README.md
Normal file
3
core-java-modules/core-java-networking-2/README.md
Normal file
@ -0,0 +1,3 @@
|
||||
### Relevant Articles
|
||||
|
||||
- [Checking if a URL Exists in Java](https://www.baeldung.com/java-check-url-exists)
|
||||
130
java-jdi/pom.xml
Normal file
130
java-jdi/pom.xml
Normal file
@ -0,0 +1,130 @@
|
||||
<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>java-jdi</artifactId>
|
||||
<version>0.1.0-SNAPSHOT</version>
|
||||
<name>java-jdi</name>
|
||||
<packaging>jar</packaging>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-java</artifactId>
|
||||
<version>0.0.1-SNAPSHOT</version>
|
||||
<relativePath>../parent-java</relativePath>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>log4j</groupId>
|
||||
<artifactId>log4j</artifactId>
|
||||
<version>${log4j.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.slf4j</groupId>
|
||||
<artifactId>slf4j-api</artifactId>
|
||||
<version>${org.slf4j.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>ch.qos.logback</groupId>
|
||||
<artifactId>logback-classic</artifactId>
|
||||
<version>${logback.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.openjdk.jmh</groupId>
|
||||
<artifactId>jmh-core</artifactId>
|
||||
<version>${jmh-core.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.openjdk.jmh</groupId>
|
||||
<artifactId>jmh-generator-annprocess</artifactId>
|
||||
<version>${jmh-generator.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.commons</groupId>
|
||||
<artifactId>commons-lang3</artifactId>
|
||||
<version>${commons-lang3.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.assertj</groupId>
|
||||
<artifactId>assertj-core</artifactId>
|
||||
<version>${assertj.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.sun</groupId>
|
||||
<artifactId>tools</artifactId>
|
||||
<version>${tools.version}</version>
|
||||
<scope>system</scope>
|
||||
<systemPath>${java.home}/../lib/tools.jar</systemPath>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
<build>
|
||||
<finalName>java-jdi</finalName>
|
||||
<resources>
|
||||
<resource>
|
||||
<directory>src/main/resources</directory>
|
||||
<filtering>true</filtering>
|
||||
</resource>
|
||||
</resources>
|
||||
|
||||
<plugins>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-javadoc-plugin</artifactId>
|
||||
<version>${maven-javadoc-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>1.8</source>
|
||||
<target>1.8</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
<profiles>
|
||||
<profile>
|
||||
<id>integration</id>
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-surefire-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>integration-test</phase>
|
||||
<goals>
|
||||
<goal>test</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<includes>
|
||||
<include>**/*IntegrationTest.java</include>
|
||||
</includes>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
<configuration>
|
||||
<systemPropertyVariables>
|
||||
<test.mime>json</test.mime>
|
||||
</systemPropertyVariables>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</profile>
|
||||
</profiles>
|
||||
|
||||
<properties>
|
||||
<commons-lang3.version>3.5</commons-lang3.version>
|
||||
|
||||
<assertj.version>3.6.1</assertj.version>
|
||||
<tool.version>1.8</tool.version>
|
||||
<org.slf4j.version>1.7.21</org.slf4j.version>
|
||||
<logback.version>1.1.7</logback.version>
|
||||
<tools.version>1.8</tools.version>
|
||||
<maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
|
||||
<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
|
||||
<maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
|
||||
</properties>
|
||||
</project>
|
||||
14
java-jdi/src/main/java/com/baeldung/jdi/JDIExample.java
Normal file
14
java-jdi/src/main/java/com/baeldung/jdi/JDIExample.java
Normal file
@ -0,0 +1,14 @@
|
||||
package com.baeldung.jdi;
|
||||
|
||||
public class JDIExample {
|
||||
|
||||
public static void main(String[] args) {
|
||||
String jpda = "Java Platform Debugger Architecture";
|
||||
System.out.println("Hi Everyone, Welcome to " + jpda); //add a break point here
|
||||
|
||||
String jdi = "Java Debug Interface"; //add a break point here and also stepping in here
|
||||
String text = "Today, we'll dive into " + jdi;
|
||||
System.out.println(text);
|
||||
}
|
||||
|
||||
}
|
||||
171
java-jdi/src/main/java/com/baeldung/jdi/JDIExampleDebugger.java
Normal file
171
java-jdi/src/main/java/com/baeldung/jdi/JDIExampleDebugger.java
Normal file
@ -0,0 +1,171 @@
|
||||
package com.baeldung.jdi;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
import java.io.OutputStreamWriter;
|
||||
import java.util.Map;
|
||||
|
||||
import com.sun.jdi.AbsentInformationException;
|
||||
import com.sun.jdi.Bootstrap;
|
||||
import com.sun.jdi.ClassType;
|
||||
import com.sun.jdi.IncompatibleThreadStateException;
|
||||
import com.sun.jdi.LocalVariable;
|
||||
import com.sun.jdi.Location;
|
||||
import com.sun.jdi.StackFrame;
|
||||
import com.sun.jdi.VMDisconnectedException;
|
||||
import com.sun.jdi.Value;
|
||||
import com.sun.jdi.VirtualMachine;
|
||||
import com.sun.jdi.connect.Connector;
|
||||
import com.sun.jdi.connect.IllegalConnectorArgumentsException;
|
||||
import com.sun.jdi.connect.LaunchingConnector;
|
||||
import com.sun.jdi.connect.VMStartException;
|
||||
import com.sun.jdi.event.BreakpointEvent;
|
||||
import com.sun.jdi.event.ClassPrepareEvent;
|
||||
import com.sun.jdi.event.Event;
|
||||
import com.sun.jdi.event.EventSet;
|
||||
import com.sun.jdi.event.LocatableEvent;
|
||||
import com.sun.jdi.event.StepEvent;
|
||||
import com.sun.jdi.request.BreakpointRequest;
|
||||
import com.sun.jdi.request.ClassPrepareRequest;
|
||||
import com.sun.jdi.request.StepRequest;
|
||||
|
||||
public class JDIExampleDebugger {
|
||||
|
||||
private Class debugClass;
|
||||
private int[] breakPointLines;
|
||||
|
||||
public Class getDebugClass() {
|
||||
return debugClass;
|
||||
}
|
||||
|
||||
public void setDebugClass(Class debugClass) {
|
||||
this.debugClass = debugClass;
|
||||
}
|
||||
|
||||
public int[] getBreakPointLines() {
|
||||
return breakPointLines;
|
||||
}
|
||||
|
||||
public void setBreakPointLines(int[] breakPointLines) {
|
||||
this.breakPointLines = breakPointLines;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the debug class as the main argument in the connector and launches the VM
|
||||
* @return VirtualMachine
|
||||
* @throws IOException
|
||||
* @throws IllegalConnectorArgumentsException
|
||||
* @throws VMStartException
|
||||
*/
|
||||
public VirtualMachine connectAndLaunchVM() throws IOException, IllegalConnectorArgumentsException, VMStartException {
|
||||
LaunchingConnector launchingConnector = Bootstrap.virtualMachineManager().defaultConnector();
|
||||
Map<String, Connector.Argument> arguments = launchingConnector.defaultArguments();
|
||||
arguments.get("main").setValue(debugClass.getName());
|
||||
VirtualMachine vm = launchingConnector.launch(arguments);
|
||||
return vm;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a request to prepare the debug class, add filter as the debug class and enables it
|
||||
* @param vm
|
||||
*/
|
||||
public void enableClassPrepareRequest(VirtualMachine vm) {
|
||||
ClassPrepareRequest classPrepareRequest = vm.eventRequestManager().createClassPrepareRequest();
|
||||
classPrepareRequest.addClassFilter(debugClass.getName());
|
||||
classPrepareRequest.enable();
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the break points at the line numbers mentioned in breakPointLines array
|
||||
* @param vm
|
||||
* @param event
|
||||
* @throws AbsentInformationException
|
||||
*/
|
||||
public void setBreakPoints(VirtualMachine vm, ClassPrepareEvent event) throws AbsentInformationException {
|
||||
ClassType classType = (ClassType) event.referenceType();
|
||||
for(int lineNumber: breakPointLines) {
|
||||
Location location = classType.locationsOfLine(lineNumber).get(0);
|
||||
BreakpointRequest bpReq = vm.eventRequestManager().createBreakpointRequest(location);
|
||||
bpReq.enable();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Displays the visible variables
|
||||
* @param event
|
||||
* @throws IncompatibleThreadStateException
|
||||
* @throws AbsentInformationException
|
||||
*/
|
||||
public void displayVariables(LocatableEvent event) throws IncompatibleThreadStateException, AbsentInformationException {
|
||||
StackFrame stackFrame = event.thread().frame(0);
|
||||
if(stackFrame.location().toString().contains(debugClass.getName())) {
|
||||
Map<LocalVariable, Value> visibleVariables = stackFrame.getValues(stackFrame.visibleVariables());
|
||||
System.out.println("Variables at " +stackFrame.location().toString() + " > ");
|
||||
for (Map.Entry<LocalVariable, Value> entry : visibleVariables.entrySet()) {
|
||||
System.out.println(entry.getKey().name() + " = " + entry.getValue());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Enables step request for a break point
|
||||
* @param vm
|
||||
* @param event
|
||||
*/
|
||||
public void enableStepRequest(VirtualMachine vm, BreakpointEvent event) {
|
||||
//enable step request for last break point
|
||||
if(event.location().toString().contains(debugClass.getName()+":"+breakPointLines[breakPointLines.length-1])) {
|
||||
StepRequest stepRequest = vm.eventRequestManager().createStepRequest(event.thread(), StepRequest.STEP_LINE, StepRequest.STEP_OVER);
|
||||
stepRequest.enable();
|
||||
}
|
||||
}
|
||||
|
||||
public static void main(String[] args) throws Exception {
|
||||
|
||||
JDIExampleDebugger debuggerInstance = new JDIExampleDebugger();
|
||||
debuggerInstance.setDebugClass(JDIExample.class);
|
||||
int[] breakPoints = {6, 9};
|
||||
debuggerInstance.setBreakPointLines(breakPoints);
|
||||
VirtualMachine vm = null;
|
||||
|
||||
try {
|
||||
vm = debuggerInstance.connectAndLaunchVM();
|
||||
debuggerInstance.enableClassPrepareRequest(vm);
|
||||
|
||||
EventSet eventSet = null;
|
||||
while ((eventSet = vm.eventQueue().remove()) != null) {
|
||||
for (Event event : eventSet) {
|
||||
if (event instanceof ClassPrepareEvent) {
|
||||
debuggerInstance.setBreakPoints(vm, (ClassPrepareEvent)event);
|
||||
}
|
||||
|
||||
if (event instanceof BreakpointEvent) {
|
||||
event.request().disable();
|
||||
debuggerInstance.displayVariables((BreakpointEvent) event);
|
||||
debuggerInstance.enableStepRequest(vm, (BreakpointEvent)event);
|
||||
}
|
||||
|
||||
if (event instanceof StepEvent) {
|
||||
debuggerInstance.displayVariables((StepEvent) event);
|
||||
}
|
||||
vm.resume();
|
||||
}
|
||||
}
|
||||
} catch (VMDisconnectedException e) {
|
||||
System.out.println("Virtual Machine is disconnected.");
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
finally {
|
||||
InputStreamReader reader = new InputStreamReader(vm.process().getInputStream());
|
||||
OutputStreamWriter writer = new OutputStreamWriter(System.out);
|
||||
char[] buf = new char[512];
|
||||
|
||||
reader.read(buf);
|
||||
writer.write(buf);
|
||||
writer.flush();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,23 @@
|
||||
package com.baeldung.matrices;
|
||||
|
||||
public class HomemadeMatrix {
|
||||
public static double[][] multiplyMatrices(double[][] firstMatrix, double[][] secondMatrix) {
|
||||
double[][] result = new double[firstMatrix.length][secondMatrix[0].length];
|
||||
|
||||
for (int row = 0; row < result.length; row++) {
|
||||
for (int col = 0; col < result[row].length; col++) {
|
||||
result[row][col] = multiplyMatricesCell(firstMatrix, secondMatrix, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
private static double multiplyMatricesCell(double[][] firstMatrix, double[][] secondMatrix, int row, int col) {
|
||||
double cell = 0;
|
||||
for (int i = 0; i < secondMatrix.length; i++) {
|
||||
cell += firstMatrix[row][i] * secondMatrix[i][col];
|
||||
}
|
||||
return cell;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,31 @@
|
||||
package com.baeldung.algorithms.logarithm;
|
||||
|
||||
import static org.junit.jupiter.api.Assertions.assertEquals;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
public class LogarithmUnitTest {
|
||||
|
||||
@Test
|
||||
public void givenLog10_shouldReturnValidResults() {
|
||||
assertEquals(Math.log10(100), 2);
|
||||
assertEquals(Math.log10(1000), 3);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLogE_shouldReturnValidResults() {
|
||||
assertEquals(Math.log(Math.E), 1);
|
||||
assertEquals(Math.log(10), 2.30258, 0.00001);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenCustomLog_shouldReturnValidResults() {
|
||||
assertEquals(customLog(2, 256), 8);
|
||||
assertEquals(customLog(10, 100), 2);
|
||||
}
|
||||
|
||||
private static double customLog(double base, double logNumber) {
|
||||
return Math.log(logNumber) / Math.log(base);
|
||||
}
|
||||
|
||||
}
|
||||
@ -1,9 +1,84 @@
|
||||
package com.baeldung.matrices;
|
||||
|
||||
import cern.colt.matrix.DoubleFactory2D;
|
||||
import cern.colt.matrix.DoubleMatrix2D;
|
||||
import cern.colt.matrix.linalg.Algebra;
|
||||
import org.apache.commons.math3.linear.Array2DRowRealMatrix;
|
||||
import org.apache.commons.math3.linear.RealMatrix;
|
||||
import org.ejml.simple.SimpleMatrix;
|
||||
import org.la4j.Matrix;
|
||||
import org.la4j.matrix.dense.Basic2DMatrix;
|
||||
import org.nd4j.linalg.api.ndarray.INDArray;
|
||||
import org.nd4j.linalg.factory.Nd4j;
|
||||
import org.openjdk.jmh.annotations.Benchmark;
|
||||
import org.openjdk.jmh.annotations.Mode;
|
||||
import org.openjdk.jmh.runner.Runner;
|
||||
import org.openjdk.jmh.runner.options.Options;
|
||||
import org.openjdk.jmh.runner.options.OptionsBuilder;
|
||||
|
||||
import java.util.concurrent.TimeUnit;
|
||||
|
||||
public class MatrixMultiplicationBenchmarking {
|
||||
|
||||
public static void main(String[] args) throws Exception {
|
||||
org.openjdk.jmh.Main.main(args);
|
||||
Options opt = new OptionsBuilder()
|
||||
.include(MatrixMultiplicationBenchmarking.class.getSimpleName())
|
||||
.mode(Mode.AverageTime)
|
||||
.forks(2)
|
||||
.warmupIterations(5)
|
||||
.measurementIterations(10)
|
||||
.timeUnit(TimeUnit.MICROSECONDS)
|
||||
.build();
|
||||
|
||||
new Runner(opt).run();
|
||||
}
|
||||
|
||||
}
|
||||
@Benchmark
|
||||
public Object homemadeMatrixMultiplication(MatrixProvider matrixProvider) {
|
||||
return HomemadeMatrix.multiplyMatrices(matrixProvider.getFirstMatrix(), matrixProvider.getSecondMatrix());
|
||||
}
|
||||
|
||||
@Benchmark
|
||||
public Object ejmlMatrixMultiplication(MatrixProvider matrixProvider) {
|
||||
SimpleMatrix firstMatrix = new SimpleMatrix(matrixProvider.getFirstMatrix());
|
||||
SimpleMatrix secondMatrix = new SimpleMatrix(matrixProvider.getSecondMatrix());
|
||||
|
||||
return firstMatrix.mult(secondMatrix);
|
||||
}
|
||||
|
||||
@Benchmark
|
||||
public Object apacheCommonsMatrixMultiplication(MatrixProvider matrixProvider) {
|
||||
RealMatrix firstMatrix = new Array2DRowRealMatrix(matrixProvider.getFirstMatrix());
|
||||
RealMatrix secondMatrix = new Array2DRowRealMatrix(matrixProvider.getSecondMatrix());
|
||||
|
||||
return firstMatrix.multiply(secondMatrix);
|
||||
}
|
||||
|
||||
@Benchmark
|
||||
public Object la4jMatrixMultiplication(MatrixProvider matrixProvider) {
|
||||
Matrix firstMatrix = new Basic2DMatrix(matrixProvider.getFirstMatrix());
|
||||
Matrix secondMatrix = new Basic2DMatrix(matrixProvider.getSecondMatrix());
|
||||
|
||||
return firstMatrix.multiply(secondMatrix);
|
||||
}
|
||||
|
||||
@Benchmark
|
||||
public Object nd4jMatrixMultiplication(MatrixProvider matrixProvider) {
|
||||
INDArray firstMatrix = Nd4j.create(matrixProvider.getFirstMatrix());
|
||||
INDArray secondMatrix = Nd4j.create(matrixProvider.getSecondMatrix());
|
||||
|
||||
return firstMatrix.mmul(secondMatrix);
|
||||
}
|
||||
|
||||
@Benchmark
|
||||
public Object coltMatrixMultiplication(MatrixProvider matrixProvider) {
|
||||
DoubleFactory2D doubleFactory2D = DoubleFactory2D.dense;
|
||||
|
||||
DoubleMatrix2D firstMatrix = doubleFactory2D.make(matrixProvider.getFirstMatrix());
|
||||
DoubleMatrix2D secondMatrix = doubleFactory2D.make(matrixProvider.getSecondMatrix());
|
||||
|
||||
Algebra algebra = new Algebra();
|
||||
return algebra.mult(firstMatrix, secondMatrix);
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,33 @@
|
||||
package com.baeldung.matrices;
|
||||
|
||||
import org.openjdk.jmh.annotations.Scope;
|
||||
import org.openjdk.jmh.annotations.State;
|
||||
|
||||
@State(Scope.Benchmark)
|
||||
public class MatrixProvider {
|
||||
private double[][] firstMatrix;
|
||||
private double[][] secondMatrix;
|
||||
|
||||
public MatrixProvider() {
|
||||
firstMatrix =
|
||||
new double[][] {
|
||||
new double[] {1d, 5d},
|
||||
new double[] {2d, 3d},
|
||||
new double[] {1d ,7d}
|
||||
};
|
||||
|
||||
secondMatrix =
|
||||
new double[][] {
|
||||
new double[] {1d, 2d, 3d, 7d},
|
||||
new double[] {5d, 2d, 8d, 1d}
|
||||
};
|
||||
}
|
||||
|
||||
public double[][] getFirstMatrix() {
|
||||
return firstMatrix;
|
||||
}
|
||||
|
||||
public double[][] getSecondMatrix() {
|
||||
return secondMatrix;
|
||||
}
|
||||
}
|
||||
@ -7,15 +7,10 @@ import org.openjdk.jmh.annotations.*;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@BenchmarkMode(Mode.AverageTime)
|
||||
@Fork(value = 2)
|
||||
@Warmup(iterations = 5)
|
||||
@Measurement(iterations = 10)
|
||||
public class RealMatrixUnitTest {
|
||||
class RealMatrixUnitTest {
|
||||
|
||||
@Test
|
||||
@Benchmark
|
||||
public void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
RealMatrix firstMatrix = new Array2DRowRealMatrix(
|
||||
new double[][] {
|
||||
new double[] {1d, 5d},
|
||||
@ -43,5 +38,4 @@ public class RealMatrixUnitTest {
|
||||
|
||||
assertThat(actual).isEqualTo(expected);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -8,15 +8,10 @@ import org.openjdk.jmh.annotations.*;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@BenchmarkMode(Mode.AverageTime)
|
||||
@Fork(value = 2)
|
||||
@Warmup(iterations = 5)
|
||||
@Measurement(iterations = 10)
|
||||
public class DoubleMatrix2DUnitTest {
|
||||
class DoubleMatrix2DUnitTest {
|
||||
|
||||
@Test
|
||||
@Benchmark
|
||||
public void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
DoubleFactory2D doubleFactory2D = DoubleFactory2D.dense;
|
||||
|
||||
DoubleMatrix2D firstMatrix = doubleFactory2D.make(
|
||||
@ -48,4 +43,4 @@ public class DoubleMatrix2DUnitTest {
|
||||
assertThat(actual).isEqualTo(expected);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@ -6,15 +6,10 @@ import org.openjdk.jmh.annotations.*;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@BenchmarkMode(Mode.AverageTime)
|
||||
@Fork(value = 2)
|
||||
@Warmup(iterations = 5)
|
||||
@Measurement(iterations = 10)
|
||||
public class SimpleMatrixUnitTest {
|
||||
class SimpleMatrixUnitTest {
|
||||
|
||||
@Test
|
||||
@Benchmark
|
||||
public void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
SimpleMatrix firstMatrix = new SimpleMatrix(
|
||||
new double[][] {
|
||||
new double[] {1d, 5d},
|
||||
@ -43,4 +38,4 @@ public class SimpleMatrixUnitTest {
|
||||
assertThat(actual).matches(m -> m.isIdentical(expected, 0d));
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@ -5,15 +5,10 @@ import org.openjdk.jmh.annotations.*;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@BenchmarkMode(Mode.AverageTime)
|
||||
@Fork(value = 2)
|
||||
@Warmup(iterations = 5)
|
||||
@Measurement(iterations = 10)
|
||||
public class HomemadeMatrixUnitTest {
|
||||
class HomemadeMatrixUnitTest {
|
||||
|
||||
@Test
|
||||
@Benchmark
|
||||
public void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
double[][] firstMatrix = {
|
||||
new double[]{1d, 5d},
|
||||
new double[]{2d, 3d},
|
||||
@ -55,4 +50,5 @@ public class HomemadeMatrixUnitTest {
|
||||
}
|
||||
return cell;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@ -7,15 +7,10 @@ import org.openjdk.jmh.annotations.*;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@BenchmarkMode(Mode.AverageTime)
|
||||
@Fork(value = 2)
|
||||
@Warmup(iterations = 5)
|
||||
@Measurement(iterations = 10)
|
||||
public class Basic2DMatrixUnitTest {
|
||||
class Basic2DMatrixUnitTest {
|
||||
|
||||
@Test
|
||||
@Benchmark
|
||||
public void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
Matrix firstMatrix = new Basic2DMatrix(
|
||||
new double[][]{
|
||||
new double[]{1d, 5d},
|
||||
@ -44,4 +39,4 @@ public class Basic2DMatrixUnitTest {
|
||||
assertThat(actual).isEqualTo(expected);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@ -7,14 +7,10 @@ import org.openjdk.jmh.annotations.*;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@BenchmarkMode(Mode.AverageTime)
|
||||
@Fork(value = 2)
|
||||
@Warmup(iterations = 5)
|
||||
@Measurement(iterations = 10)
|
||||
public class INDArrayUnitTest {
|
||||
class INDArrayUnitTest {
|
||||
|
||||
@Test
|
||||
public void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
void givenTwoMatrices_whenMultiply_thenMultiplicatedMatrix() {
|
||||
INDArray firstMatrix = Nd4j.create(
|
||||
new double[][]{
|
||||
new double[]{1d, 5d},
|
||||
@ -43,4 +39,4 @@ public class INDArrayUnitTest {
|
||||
assertThat(actual).isEqualTo(expected);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,13 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
import java.math.BigInteger;
|
||||
|
||||
public class BigIntegerLCM {
|
||||
|
||||
public static BigInteger lcm(BigInteger number1, BigInteger number2) {
|
||||
BigInteger gcd = number1.gcd(number2);
|
||||
BigInteger absProduct = number1.multiply(number2).abs();
|
||||
return absProduct.divide(gcd);
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,40 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
import java.util.Arrays;
|
||||
|
||||
public class EuclideanAlgorithm {
|
||||
|
||||
public static int gcd(int number1, int number2) {
|
||||
if (number1 == 0 || number2 == 0) {
|
||||
return number1 + number2;
|
||||
} else {
|
||||
int absNumber1 = Math.abs(number1);
|
||||
int absNumber2 = Math.abs(number2);
|
||||
int biggerValue = Math.max(absNumber1, absNumber2);
|
||||
int smallerValue = Math.min(absNumber1, absNumber2);
|
||||
return gcd(biggerValue % smallerValue, smallerValue);
|
||||
}
|
||||
}
|
||||
|
||||
public static int lcm(int number1, int number2) {
|
||||
if (number1 == 0 || number2 == 0)
|
||||
return 0;
|
||||
else {
|
||||
int gcd = gcd(number1, number2);
|
||||
return Math.abs(number1 * number2) / gcd;
|
||||
}
|
||||
}
|
||||
|
||||
public static int lcmForArray(int[] numbers) {
|
||||
int lcm = numbers[0];
|
||||
for (int i = 1; i <= numbers.length - 1; i++) {
|
||||
lcm = lcm(lcm, numbers[i]);
|
||||
}
|
||||
return lcm;
|
||||
}
|
||||
|
||||
public static int lcmByLambda(int... numbers) {
|
||||
return Arrays.stream(numbers).reduce(1, (lcmSoFar, currentNumber) -> Math.abs(lcmSoFar * currentNumber) / gcd(lcmSoFar, currentNumber));
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,42 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
import java.util.HashMap;
|
||||
import java.util.HashSet;
|
||||
import java.util.Map;
|
||||
import java.util.Set;
|
||||
|
||||
public class PrimeFactorizationAlgorithm {
|
||||
|
||||
public static Map<Integer, Integer> getPrimeFactors(int number) {
|
||||
int absNumber = Math.abs(number);
|
||||
Map<Integer, Integer> primeFactorsMap = new HashMap<Integer, Integer>();
|
||||
for (int factor = 2; factor <= absNumber; factor++) {
|
||||
while (absNumber % factor == 0) {
|
||||
Integer power = primeFactorsMap.get(factor);
|
||||
if (power == null) {
|
||||
power = 0;
|
||||
}
|
||||
primeFactorsMap.put(factor, power + 1);
|
||||
absNumber /= factor;
|
||||
}
|
||||
}
|
||||
return primeFactorsMap;
|
||||
}
|
||||
|
||||
public static int lcm(int number1, int number2) {
|
||||
if (number1 == 0 || number2 == 0) {
|
||||
return 0;
|
||||
}
|
||||
Map<Integer, Integer> primeFactorsForNum1 = getPrimeFactors(number1);
|
||||
Map<Integer, Integer> primeFactorsForNum2 = getPrimeFactors(number2);
|
||||
Set<Integer> primeFactorsUnionSet = new HashSet<Integer>(primeFactorsForNum1.keySet());
|
||||
primeFactorsUnionSet.addAll(primeFactorsForNum2.keySet());
|
||||
int lcm = 1;
|
||||
for (Integer primeFactor : primeFactorsUnionSet) {
|
||||
lcm *= Math.pow(primeFactor, Math.max(primeFactorsForNum1.getOrDefault(primeFactor, 0),
|
||||
primeFactorsForNum2.getOrDefault(primeFactor, 0)));
|
||||
}
|
||||
return lcm;
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,18 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
public class SimpleAlgorithm {
|
||||
public static int lcm(int number1, int number2) {
|
||||
if (number1 == 0 || number2 == 0) {
|
||||
return 0;
|
||||
}
|
||||
int absNumber1 = Math.abs(number1);
|
||||
int absNumber2 = Math.abs(number2);
|
||||
int absHigherNumber = Math.max(absNumber1, absNumber2);
|
||||
int absLowerNumber = Math.min(absNumber1, absNumber2);
|
||||
int lcm = absHigherNumber;
|
||||
while (lcm % absLowerNumber != 0) {
|
||||
lcm += absHigherNumber;
|
||||
}
|
||||
return lcm;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,18 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.math.BigInteger;
|
||||
|
||||
public class BigIntegerLCMUnitTest {
|
||||
|
||||
@Test
|
||||
public void testLCM() {
|
||||
BigInteger number1 = new BigInteger("12");
|
||||
BigInteger number2 = new BigInteger("18");
|
||||
BigInteger expectedLCM = new BigInteger("36");
|
||||
Assert.assertEquals(expectedLCM, BigIntegerLCM.lcm(number1, number2));
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,27 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class EuclideanAlgorithmUnitTest {
|
||||
|
||||
@Test
|
||||
public void testGCD() {
|
||||
Assert.assertEquals(6, EuclideanAlgorithm.gcd(12, 18));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testLCM() {
|
||||
Assert.assertEquals(36, EuclideanAlgorithm.lcm(12, 18));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testLCMForArray() {
|
||||
Assert.assertEquals(15, EuclideanAlgorithm.lcmForArray(new int[]{3, 5, 15}));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testLCMByLambdaForArray() {
|
||||
Assert.assertEquals(15, EuclideanAlgorithm.lcmByLambda(new int[]{3, 5, 15}));
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
|
||||
import static com.baeldung.lcm.PrimeFactorizationAlgorithm.*;
|
||||
|
||||
|
||||
public class PrimeFactorizationAlgorithmUnitTest {
|
||||
|
||||
@Test
|
||||
public void testGetPrimeFactors() {
|
||||
Map<Integer, Integer> expectedPrimeFactorsMapForTwelve = new HashMap<>();
|
||||
expectedPrimeFactorsMapForTwelve.put(2, 2);
|
||||
expectedPrimeFactorsMapForTwelve.put(3, 1);
|
||||
Map<Integer, Integer> expectedPrimeFactorsMapForEighteen = new HashMap<>();
|
||||
expectedPrimeFactorsMapForEighteen.put(2, 1);
|
||||
expectedPrimeFactorsMapForEighteen.put(3, 2);
|
||||
Assert.assertEquals(expectedPrimeFactorsMapForTwelve, getPrimeFactors(12));
|
||||
Assert.assertEquals(expectedPrimeFactorsMapForEighteen, getPrimeFactors(18));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testLCM() {
|
||||
Assert.assertEquals(36, PrimeFactorizationAlgorithm.lcm(12, 18));
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,15 @@
|
||||
package com.baeldung.lcm;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import static com.baeldung.lcm.SimpleAlgorithm.*;
|
||||
|
||||
public class SimpleAlgorithmUnitTest {
|
||||
|
||||
@Test
|
||||
public void testLCM() {
|
||||
Assert.assertEquals(36, lcm(12, 18));
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,126 @@
|
||||
package com.baeldung.jhipster5.security;
|
||||
|
||||
import com.baeldung.jhipster5.domain.User;
|
||||
import com.baeldung.jhipster5.security.dto.LoginRequest;
|
||||
import com.baeldung.jhipster5.security.dto.LoginResponse;
|
||||
import com.baeldung.jhipster5.service.UserService;
|
||||
import com.baeldung.jhipster5.service.dto.UserDTO;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
import org.springframework.beans.factory.annotation.Autowired;
|
||||
import org.springframework.http.ResponseEntity;
|
||||
import org.springframework.security.authentication.AuthenticationManager;
|
||||
import org.springframework.security.authentication.AuthenticationServiceException;
|
||||
import org.springframework.security.authentication.BadCredentialsException;
|
||||
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
|
||||
import org.springframework.security.core.Authentication;
|
||||
import org.springframework.security.core.AuthenticationException;
|
||||
import org.springframework.security.core.GrantedAuthority;
|
||||
import org.springframework.security.core.authority.SimpleGrantedAuthority;
|
||||
import org.springframework.stereotype.Component;
|
||||
import org.springframework.web.client.RestTemplate;
|
||||
|
||||
import java.util.Collection;
|
||||
import java.util.Collections;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
@Component
|
||||
public class CustomAuthenticationManager implements AuthenticationManager {
|
||||
|
||||
private final static Logger LOG = LoggerFactory.getLogger(CustomAuthenticationManager.class);
|
||||
|
||||
private final String REMOTE_LOGIN_URL = "https://example.com/login";
|
||||
|
||||
private final RestTemplate restTemplate = new RestTemplate();
|
||||
|
||||
@Autowired
|
||||
private UserService userService;
|
||||
|
||||
@Override
|
||||
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
|
||||
|
||||
LoginRequest loginRequest = new LoginRequest();
|
||||
loginRequest.setUsername(authentication.getPrincipal().toString());
|
||||
loginRequest.setPassword(authentication.getCredentials().toString());
|
||||
|
||||
try
|
||||
{
|
||||
ResponseEntity<LoginResponse> response =
|
||||
restTemplate.postForEntity(
|
||||
REMOTE_LOGIN_URL,
|
||||
loginRequest,
|
||||
LoginResponse.class);
|
||||
|
||||
if(response.getStatusCode().is2xxSuccessful())
|
||||
{
|
||||
//
|
||||
// Need to create a new local user if this is the first time logging in; this
|
||||
// is required so they can be issued JWTs. We can use this flow to also keep
|
||||
// our local use entry up to date with data from the remote service if needed
|
||||
// (for example, if the first and last name might change, this is where we would
|
||||
// update the local user entry)
|
||||
//
|
||||
|
||||
User user = userService.getUserWithAuthoritiesByLogin(authentication.getPrincipal().toString())
|
||||
.orElseGet(() -> userService.createUser(createUserDTO(response.getBody(), authentication)));
|
||||
return createAuthentication(authentication, user);
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new BadCredentialsException("Invalid username or password");
|
||||
}
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
LOG.warn("Failed to authenticate", e);
|
||||
throw new AuthenticationServiceException("Failed to login", e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new authentication with basic roles
|
||||
* @param auth Contains auth details that will be copied into the new one.
|
||||
* @param user User object representing who is logging in
|
||||
* @return Authentication
|
||||
*/
|
||||
private Authentication createAuthentication(Authentication auth, User user) {
|
||||
|
||||
//
|
||||
// Honor any roles the user already has set; default is just USER role
|
||||
// but could be modified after account creation
|
||||
//
|
||||
|
||||
Collection<? extends GrantedAuthority> authorities = user
|
||||
.getAuthorities()
|
||||
.stream()
|
||||
.map(a -> new SimpleGrantedAuthority(a.getName()))
|
||||
.collect(Collectors.toSet());
|
||||
|
||||
UsernamePasswordAuthenticationToken token
|
||||
= new UsernamePasswordAuthenticationToken(
|
||||
user.getId(),
|
||||
auth.getCredentials().toString(),
|
||||
authorities);
|
||||
|
||||
return token;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a new UserDTO with basic info.
|
||||
* @param loginResponse Response from peloton login API
|
||||
* @param authentication Contains user login info (namely username and password)
|
||||
* @return UserDTO
|
||||
*/
|
||||
private UserDTO createUserDTO(LoginResponse loginResponse, Authentication authentication) {
|
||||
|
||||
UserDTO dto = new UserDTO();
|
||||
|
||||
dto.setActivated(true);
|
||||
dto.setEmail(loginResponse.getEmail());
|
||||
dto.setAuthorities(Collections.singleton(AuthoritiesConstants.USER));
|
||||
dto.setFirstName(loginResponse.getFirstName());
|
||||
dto.setLastName(loginResponse.getLastName());
|
||||
|
||||
return dto;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
package com.baeldung.jhipster5.security.dto;
|
||||
|
||||
/**
|
||||
* Simple DTO representing a login request to a remote service.
|
||||
*/
|
||||
public class LoginRequest {
|
||||
|
||||
private String username;
|
||||
|
||||
private String password;
|
||||
|
||||
public LoginRequest() {
|
||||
}
|
||||
|
||||
public String getUsername() {
|
||||
return username;
|
||||
}
|
||||
|
||||
public void setUsername(String username) {
|
||||
this.username = username;
|
||||
}
|
||||
|
||||
public String getPassword() {
|
||||
return password;
|
||||
}
|
||||
|
||||
public void setPassword(String password) {
|
||||
this.password = password;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,50 @@
|
||||
package com.baeldung.jhipster5.security.dto;
|
||||
|
||||
/**
|
||||
* Simple DTO representing the response of logging in using a remote service.
|
||||
*/
|
||||
public class LoginResponse {
|
||||
|
||||
private String username;
|
||||
|
||||
private String firstName;
|
||||
|
||||
private String lastName;
|
||||
|
||||
private String email;
|
||||
|
||||
public LoginResponse() {
|
||||
}
|
||||
|
||||
public String getUsername() {
|
||||
return username;
|
||||
}
|
||||
|
||||
public void setUsername(String username) {
|
||||
this.username = username;
|
||||
}
|
||||
|
||||
public String getFirstName() {
|
||||
return firstName;
|
||||
}
|
||||
|
||||
public void setFirstName(String firstName) {
|
||||
this.firstName = firstName;
|
||||
}
|
||||
|
||||
public String getLastName() {
|
||||
return lastName;
|
||||
}
|
||||
|
||||
public void setLastName(String lastName) {
|
||||
this.lastName = lastName;
|
||||
}
|
||||
|
||||
public String getEmail() {
|
||||
return email;
|
||||
}
|
||||
|
||||
public void setEmail(String email) {
|
||||
this.email = email;
|
||||
}
|
||||
}
|
||||
@ -1,8 +1,8 @@
|
||||
import { Routes } from '@angular/router';
|
||||
|
||||
import { activateRoute, passwordRoute, passwordResetFinishRoute, passwordResetInitRoute, registerRoute, settingsRoute } from './';
|
||||
import { settingsRoute } from './';
|
||||
|
||||
const ACCOUNT_ROUTES = [activateRoute, passwordRoute, passwordResetFinishRoute, passwordResetInitRoute, registerRoute, settingsRoute];
|
||||
const ACCOUNT_ROUTES = [settingsRoute];
|
||||
|
||||
export const accountState: Routes = [
|
||||
{
|
||||
|
||||
@ -114,12 +114,6 @@
|
||||
<span>Settings</span>
|
||||
</a>
|
||||
</li>
|
||||
<li *ngSwitchCase="true">
|
||||
<a class="dropdown-item" routerLink="password" routerLinkActive="active" (click)="collapseNavbar()">
|
||||
<fa-icon icon="clock" fixedWidth="true"></fa-icon>
|
||||
<span>Password</span>
|
||||
</a>
|
||||
</li>
|
||||
<li *ngSwitchCase="true">
|
||||
<a class="dropdown-item" (click)="logout()" id="logout">
|
||||
<fa-icon icon="sign-out-alt" fixedWidth="true"></fa-icon>
|
||||
@ -132,12 +126,6 @@
|
||||
<span>Sign in</span>
|
||||
</a>
|
||||
</li>
|
||||
<li *ngSwitchCase="false">
|
||||
<a class="dropdown-item" routerLink="register" routerLinkActive="active" (click)="collapseNavbar()">
|
||||
<fa-icon icon="user-plus" fixedWidth="true"></fa-icon>
|
||||
<span>Register</span>
|
||||
</a>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
@ -30,14 +30,6 @@
|
||||
</div>
|
||||
<button type="submit" class="btn btn-primary">Sign in</button>
|
||||
</form>
|
||||
<p></p>
|
||||
<div class="alert alert-warning">
|
||||
<a class="alert-link" (click)="requestResetPassword()">Did you forget your password?</a>
|
||||
</div>
|
||||
<div class="alert alert-warning">
|
||||
<span>You don't have an account yet?</span>
|
||||
<a class="alert-link" (click)="register()">Register a new account</a>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,54 @@
|
||||
package com.baeldung.jhipster5.security;
|
||||
|
||||
import org.springframework.beans.factory.annotation.Autowired;
|
||||
import org.springframework.context.annotation.Primary;
|
||||
import org.springframework.security.authentication.AuthenticationManager;
|
||||
import org.springframework.security.authentication.BadCredentialsException;
|
||||
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
|
||||
import org.springframework.security.core.Authentication;
|
||||
import org.springframework.security.core.AuthenticationException;
|
||||
import org.springframework.security.core.GrantedAuthority;
|
||||
import org.springframework.security.core.authority.SimpleGrantedAuthority;
|
||||
import org.springframework.security.core.userdetails.UserDetails;
|
||||
import org.springframework.security.core.userdetails.UserDetailsService;
|
||||
import org.springframework.security.crypto.password.PasswordEncoder;
|
||||
import org.springframework.stereotype.Component;
|
||||
|
||||
import java.util.Collection;
|
||||
import java.util.Collections;
|
||||
|
||||
/**
|
||||
* AuthenticationManager used solely by unit tests.
|
||||
*/
|
||||
@Component
|
||||
@Primary
|
||||
public class MockAuthenticationManager implements AuthenticationManager
|
||||
{
|
||||
private final static Collection<? extends GrantedAuthority> ROLES =
|
||||
Collections.singleton(new SimpleGrantedAuthority("ROLE_USER"));
|
||||
|
||||
@Autowired
|
||||
private UserDetailsService userDetailsService;
|
||||
|
||||
@Autowired
|
||||
private PasswordEncoder passwordEncoder;
|
||||
|
||||
@Override
|
||||
public Authentication authenticate(Authentication authentication) throws AuthenticationException
|
||||
{
|
||||
|
||||
UserDetails userDetails = userDetailsService.loadUserByUsername(authentication.getName());
|
||||
|
||||
if(userDetails == null || !passwordEncoder.matches(authentication.getCredentials().toString(), userDetails.getPassword()))
|
||||
{
|
||||
throw new BadCredentialsException("Invalid username/password");
|
||||
}
|
||||
|
||||
UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(
|
||||
authentication.getPrincipal().toString(),
|
||||
authentication.getCredentials().toString(),
|
||||
ROLES);
|
||||
|
||||
return token;
|
||||
}
|
||||
}
|
||||
5
libraries-data-3/README.md
Normal file
5
libraries-data-3/README.md
Normal file
@ -0,0 +1,5 @@
|
||||
### Relevant articles
|
||||
- [Parsing YAML with SnakeYAML](http://www.baeldung.com/java-snake-yaml)
|
||||
- [Guide to JMapper](https://www.baeldung.com/jmapper)
|
||||
- [An Introduction to SuanShu](https://www.baeldung.com/suanshu)
|
||||
- [Intro to Derive4J](https://www.baeldung.com/derive4j)
|
||||
1
libraries-data-3/log4j.properties
Normal file
1
libraries-data-3/log4j.properties
Normal file
@ -0,0 +1 @@
|
||||
log4j.rootLogger=INFO, stdout
|
||||
55
libraries-data-3/pom.xml
Normal file
55
libraries-data-3/pom.xml
Normal file
@ -0,0 +1,55 @@
|
||||
<?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>libraries-data-3</artifactId>
|
||||
<name>libraries-data-3</name>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-modules</artifactId>
|
||||
<version>1.0.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.yaml</groupId>
|
||||
<artifactId>snakeyaml</artifactId>
|
||||
<version>${snakeyaml.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.googlecode.jmapper-framework</groupId>
|
||||
<artifactId>jmapper-core</artifactId>
|
||||
<version>${jmapper.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.numericalmethod</groupId>
|
||||
<artifactId>suanshu</artifactId>
|
||||
<version>${suanshu.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.derive4j</groupId>
|
||||
<artifactId>derive4j</artifactId>
|
||||
<version>${derive4j.version}</version>
|
||||
</dependency>
|
||||
|
||||
</dependencies>
|
||||
|
||||
<repositories>
|
||||
<repository>
|
||||
<id>nm-repo</id>
|
||||
<name>Numerical Method's Maven Repository</name>
|
||||
<url>http://repo.numericalmethod.com/maven/</url>
|
||||
<layout>default</layout>
|
||||
</repository>
|
||||
</repositories>
|
||||
|
||||
<properties>
|
||||
<snakeyaml.version>1.21</snakeyaml.version>
|
||||
<jmapper.version>1.6.0.1</jmapper.version>
|
||||
<suanshu.version>4.0.0</suanshu.version>
|
||||
<derive4j.version>1.1.0</derive4j.version>
|
||||
</properties>
|
||||
</project>
|
||||
10
libraries-data-3/src/main/resources/user_jmapper.xml
Normal file
10
libraries-data-3/src/main/resources/user_jmapper.xml
Normal file
@ -0,0 +1,10 @@
|
||||
<jmapper>
|
||||
<class name="com.baeldung.jmapper.UserDto">
|
||||
<attribute name="id">
|
||||
<value name="id"/>
|
||||
</attribute>
|
||||
<attribute name="username">
|
||||
<value name="email"/>
|
||||
</attribute>
|
||||
</class>
|
||||
</jmapper>
|
||||
5
libraries-data-3/src/main/resources/user_jmapper1.xml
Normal file
5
libraries-data-3/src/main/resources/user_jmapper1.xml
Normal file
@ -0,0 +1,5 @@
|
||||
<jmapper>
|
||||
<class name="com.baeldung.jmapper.UserDto1">
|
||||
<global/>
|
||||
</class>
|
||||
</jmapper>
|
||||
21
libraries-data-3/src/main/resources/user_jmapper2.xml
Normal file
21
libraries-data-3/src/main/resources/user_jmapper2.xml
Normal file
@ -0,0 +1,21 @@
|
||||
<jmapper>
|
||||
<class name="com.baeldung.jmapper.relational.User">
|
||||
<attribute name="id">
|
||||
<value name="id"/>
|
||||
<classes>
|
||||
<class name="com.baeldung.jmapper.relational.UserDto1"/>
|
||||
<class name="com.baeldung.jmapper.relational.UserDto2"/>
|
||||
</classes>
|
||||
</attribute>
|
||||
<attribute name="email">
|
||||
<attributes>
|
||||
<attribute name="username"/>
|
||||
<attribute name="email"/>
|
||||
</attributes>
|
||||
<classes>
|
||||
<class name="com.baeldung.jmapper.relational.UserDto1"/>
|
||||
<class name="com.baeldung.jmapper.relational.UserDto2"/>
|
||||
</classes>
|
||||
</attribute>
|
||||
</class>
|
||||
</jmapper>
|
||||
3
libraries-data-3/src/test/resources/yaml/customer.yaml
Normal file
3
libraries-data-3/src/test/resources/yaml/customer.yaml
Normal file
@ -0,0 +1,3 @@
|
||||
firstName: "John"
|
||||
lastName: "Doe"
|
||||
age: 20
|
||||
@ -0,0 +1,7 @@
|
||||
firstName: "John"
|
||||
lastName: "Doe"
|
||||
age: 31
|
||||
contactDetails:
|
||||
- { type: "mobile", number: 123456789}
|
||||
- { type: "landline", number: 456786868}
|
||||
|
||||
@ -0,0 +1,13 @@
|
||||
firstName: "John"
|
||||
lastName: "Doe"
|
||||
age: 31
|
||||
contactDetails:
|
||||
- type: "mobile"
|
||||
number: 123456789
|
||||
- type: "landline"
|
||||
number: 456786868
|
||||
homeAddress:
|
||||
line: "Xyz, DEF Street"
|
||||
city: "City Y"
|
||||
state: "State Y"
|
||||
zip: 345657
|
||||
@ -0,0 +1,6 @@
|
||||
firstName: "John"
|
||||
lastName: "Doe"
|
||||
age: 31
|
||||
contactDetails:
|
||||
- !contact { type: "mobile", number: 123456789}
|
||||
- !contact { type: "landline", number: 456786868}
|
||||
@ -0,0 +1,4 @@
|
||||
!!com.baeldung.snakeyaml.Customer
|
||||
firstName: "John"
|
||||
lastName: "Doe"
|
||||
age: 20
|
||||
8
libraries-data-3/src/test/resources/yaml/customers.yaml
Normal file
8
libraries-data-3/src/test/resources/yaml/customers.yaml
Normal file
@ -0,0 +1,8 @@
|
||||
---
|
||||
firstName: "John"
|
||||
lastName: "Doe"
|
||||
age: 20
|
||||
---
|
||||
firstName: "Jack"
|
||||
lastName: "Jones"
|
||||
age: 25
|
||||
@ -9,7 +9,6 @@
|
||||
- [Introduction to JCache](http://www.baeldung.com/jcache)
|
||||
- [A Guide to Apache Ignite](http://www.baeldung.com/apache-ignite)
|
||||
- [Apache Ignite with Spring Data](http://www.baeldung.com/apache-ignite-spring-data)
|
||||
- [Guide to JMapper](https://www.baeldung.com/jmapper)
|
||||
- [A Guide to Apache Crunch](https://www.baeldung.com/apache-crunch)
|
||||
- [Intro to Apache Storm](https://www.baeldung.com/apache-storm)
|
||||
- [Guide to Ebean ORM](https://www.baeldung.com/ebean-orm)
|
||||
|
||||
@ -141,12 +141,7 @@
|
||||
<artifactId>hazelcast</artifactId>
|
||||
<version>${hazelcast.version}</version>
|
||||
</dependency>
|
||||
|
||||
<dependency>
|
||||
<groupId>com.googlecode.jmapper-framework</groupId>
|
||||
<artifactId>jmapper-core</artifactId>
|
||||
<version>${jmapper.version}</version>
|
||||
</dependency>
|
||||
|
||||
<!-- crunch project -->
|
||||
<dependency>
|
||||
<groupId>org.apache.crunch</groupId>
|
||||
@ -460,7 +455,6 @@
|
||||
<datanucleus-maven-plugin.version>5.0.2</datanucleus-maven-plugin.version>
|
||||
<datanucleus-xml.version>5.0.0-release</datanucleus-xml.version>
|
||||
<datanucleus-jdo-query.version>5.0.4</datanucleus-jdo-query.version>
|
||||
<jmapper.version>1.6.0.1</jmapper.version>
|
||||
<org.apache.crunch.crunch-core.version>0.15.0</org.apache.crunch.crunch-core.version>
|
||||
<org.apache.hadoop.hadoop-client>2.2.0</org.apache.hadoop.hadoop-client>
|
||||
<ebean.version>11.22.4</ebean.version>
|
||||
|
||||
@ -5,3 +5,7 @@
|
||||
- [A Guide to Google-Http-Client](http://www.baeldung.com/google-http-client)
|
||||
- [Asynchronous HTTP with async-http-client in Java](http://www.baeldung.com/async-http-client)
|
||||
- [WebSockets with AsyncHttpClient](http://www.baeldung.com/async-http-client-websockets)
|
||||
- [Integrating Retrofit with RxJava](http://www.baeldung.com/retrofit-rxjava)
|
||||
- [Introduction to Retrofit](http://www.baeldung.com/retrofit)
|
||||
- [A Guide to Unirest](http://www.baeldung.com/unirest)
|
||||
- [Creating REST Microservices with Javalin](http://www.baeldung.com/javalin-rest-microservices)
|
||||
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Reference in New Issue
Block a user