iSharkFly-Docs
/
java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'eugenp:master' into master

This commit is contained in:
cesarevalenti90 2023-01-31 23:03:17 +01:00 committed by GitHub
parent e10ffa8b75 ba8f9a6437
commit 20915e1718
139 changed files with 3827 additions and 363 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
axon/README.md
View File

@ -20,4 +20,5 @@ Two scripts are included to easily start middleware using Docker matching the pr
- [Multi-Entity Aggregates in Axon](https://www.baeldung.com/java-axon-multi-entity-aggregates)
- [Snapshotting Aggregates in Axon](https://www.baeldung.com/axon-snapshotting-aggregates)
- [Dispatching Queries in Axon Framework](https://www.baeldung.com/axon-query-dispatching)
- [Persisting the Query Model](https://www.baeldung.com/axon-persisting-query-model)
- [Persisting the Query Model](https://www.baeldung.com/persisting-the-query-model)
- [Using and testing Axon applications via REST](https://www.baeldung.com/using-and-testing-axon-applications-via-rest)

13
axon/pom.xml
View File

@ -81,13 +81,22 @@
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>4.2.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webflux</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty-http</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<axon-bom.version>4.6.2</axon-bom.version>
<axon-bom.version>4.6.3</axon-bom.version>
<de.flapdoodle.embed.mongo.version>3.4.8</de.flapdoodle.embed.mongo.version>
</properties>

187
axon/src/test/java/com/baeldung/axon/gui/OrderRestEndpointIntegrationTest.java Normal file
View File

@ -0,0 +1,187 @@
package com.baeldung.axon.gui;
import com.baeldung.axon.OrderApplication;
import com.baeldung.axon.querymodel.OrderResponse;
import com.baeldung.axon.querymodel.OrderStatusResponse;
import org.junit.jupiter.api.*;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.server.LocalServerPort;
import org.springframework.http.MediaType;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.web.reactive.function.client.WebClient;
import org.springframework.web.reactive.function.client.WebClientResponseException;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.netty.http.client.HttpClient;
import reactor.test.StepVerifier;
import java.util.ArrayList;
import java.util.UUID;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import static org.junit.jupiter.api.Assertions.*;
@SpringBootTest(classes = OrderApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class OrderRestEndpointIntegrationTest {
@LocalServerPort
private int port;
@Test
@DirtiesContext
void givenCreateOrderCalled_whenCallingAllOrders_thenOneCreatedOrderIsReturned() {
WebClient client = WebClient.builder()
.clientConnector(httpConnector())
.build();
createRandomNewOrder(client);
StepVerifier.create(retrieveListResponse(client.get()
.uri("http://localhost:" + port + "/all-orders")))
.expectNextMatches(list -> 1 == list.size() && list.get(0)
.getOrderStatus() == OrderStatusResponse.CREATED)
.verifyComplete();
}
@Test
@DirtiesContext
void givenCreateOrderCalledThreeTimesAnd_whenCallingAllOrdersStreaming_thenTwoCreatedOrdersAreReturned() {
WebClient client = WebClient.builder()
.clientConnector(httpConnector())
.build();
for (int i = 0; i < 3; i++) {
createRandomNewOrder(client);
}
StepVerifier.create(retrieveStreamingResponse(client.get()
.uri("http://localhost:" + port + "/all-orders-streaming")))
.expectNextMatches(o -> o.getOrderStatus() == OrderStatusResponse.CREATED)
.expectNextMatches(o -> o.getOrderStatus() == OrderStatusResponse.CREATED)
.expectNextMatches(o -> o.getOrderStatus() == OrderStatusResponse.CREATED)
.verifyComplete();
}
@Test
@DirtiesContext
void givenRuleExistThatNeedConfirmationBeforeShipping_whenCallingShipUnconfirmed_thenErrorReturned() {
WebClient client = WebClient.builder()
.clientConnector(httpConnector())
.build();
StepVerifier.create(retrieveResponse(client.post()
.uri("http://localhost:" + port + "/ship-unconfirmed-order")))
.verifyError(WebClientResponseException.class);
}
@Test
@DirtiesContext
void givenShipOrderCalled_whenCallingAllShippedChairs_then234PlusOneIsReturned() {
WebClient client = WebClient.builder()
.clientConnector(httpConnector())
.build();
verifyVoidPost(client, "http://localhost:" + port + "/ship-order");
StepVerifier.create(retrieveIntegerResponse(client.get()
.uri("http://localhost:" + port + "/total-shipped/Deluxe Chair")))
.assertNext(r -> assertEquals(235, r))
.verifyComplete();
}
@Test
@DirtiesContext
void givenOrdersAreUpdated_whenCallingOrderUpdates_thenUpdatesReturned() {
WebClient updaterClient = WebClient.builder()
.clientConnector(httpConnector())
.build();
WebClient receiverClient = WebClient.builder()
.clientConnector(httpConnector())
.build();
String orderId = UUID.randomUUID()
.toString();
String productId = UUID.randomUUID()
.toString();
StepVerifier.create(retrieveResponse(updaterClient.post()
.uri("http://localhost:" + port + "/order/" + orderId)))
.assertNext(Assertions::assertNotNull)
.verifyComplete();
ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
executor.schedule(() -> addIncrementDecrementConfirmAndShipProduct(orderId, productId), 1L, TimeUnit.SECONDS);
try {
StepVerifier.create(retrieveStreamingResponse(receiverClient.get()
.uri("http://localhost:" + port + "/order-updates/" + orderId)))
.assertNext(p -> assertTrue(p.getProducts()
.isEmpty()))
.assertNext(p -> assertEquals(1, p.getProducts()
.get(productId)))
.assertNext(p -> assertEquals(2, p.getProducts()
.get(productId)))
.assertNext(p -> assertEquals(1, p.getProducts()
.get(productId)))
.assertNext(p -> assertEquals(OrderStatusResponse.CONFIRMED, p.getOrderStatus()))
.assertNext(p -> assertEquals(OrderStatusResponse.SHIPPED, p.getOrderStatus()))
.thenCancel()
.verify();
} finally {
executor.shutdown();
}
}
private void addIncrementDecrementConfirmAndShipProduct(String orderId, String productId) {
WebClient client = WebClient.builder()
.clientConnector(httpConnector())
.build();
String base = "http://localhost:" + port + "/order/" + orderId;
verifyVoidPost(client, base + "/product/" + productId);
verifyVoidPost(client, base + "/product/" + productId + "/increment");
verifyVoidPost(client, base + "/product/" + productId + "/decrement");
verifyVoidPost(client, base + "/confirm");
verifyVoidPost(client, base + "/ship");
}
private void createRandomNewOrder(WebClient client){
StepVerifier.create(retrieveResponse(client.post()
.uri("http://localhost:" + port + "/order")))
.assertNext(Assertions::assertNotNull)
.verifyComplete();
}
private void verifyVoidPost(WebClient client, String uri) {
StepVerifier.create(retrieveResponse(client.post()
.uri(uri)))
.verifyComplete();
}
private static ReactorClientHttpConnector httpConnector() {
HttpClient httpClient = HttpClient.create()
.wiretap(true);
return new ReactorClientHttpConnector(httpClient);
}
private Mono<String> retrieveResponse(WebClient.RequestBodySpec spec) {
return spec.retrieve()
.bodyToMono(String.class);
}
private Mono<ResponseList> retrieveListResponse(WebClient.RequestHeadersSpec<?> spec) {
return spec.accept(MediaType.APPLICATION_JSON)
.retrieve()
.bodyToMono(ResponseList.class);
}
private Mono<Integer> retrieveIntegerResponse(WebClient.RequestHeadersSpec<?> spec) {
return spec.retrieve()
.bodyToMono(Integer.class);
}
private Flux<OrderResponse> retrieveStreamingResponse(WebClient.RequestHeadersSpec<?> spec) {
return spec.retrieve()
.bodyToFlux(OrderResponse.class);
}
private static class ResponseList extends ArrayList<OrderResponse> {
private ResponseList() {
super();
}
}
}

16
core-java-modules/core-java-11-3/pom.xml
View File

@ -15,6 +15,20 @@
<relativePath>../../pom.xml</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
@ -32,6 +46,8 @@
<properties>
<maven.compiler.source.version>11</maven.compiler.source.version>
<maven.compiler.target.version>11</maven.compiler.target.version>
<jackson.version>2.14.1</jackson.version>
<gson.version>2.10</gson.version>
</properties>
</project>

73
core-java-modules/core-java-11-3/src/main/java/com/baeldung/httppojo/Todo.java Normal file
View File

@ -0,0 +1,73 @@
package com.baeldung.httppojo;
import java.util.Objects;
public class Todo {
int userId;
int id;
String title;
boolean completed;
public Todo() {
}
public Todo(int userId, int id, String title, boolean completed) {
this.userId = userId;
this.id = id;
this.title = title;
this.completed = completed;
}
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public boolean isCompleted() {
return completed;
}
public void setCompleted(boolean completed) {
this.completed = completed;
}
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
Todo todo = (Todo) o;
return userId == todo.userId && id == todo.id && completed == todo.completed && Objects.equals(title, todo.title);
}
@Override
public int hashCode() {
return Objects.hash(userId, id, title, completed);
}
@Override
public String toString() {
return "{" + "userId=" + userId + ", id=" + id + ", title='" + title + '\'' + ", completed=" + completed + '}';
}
}

107
core-java-modules/core-java-11-3/src/main/java/com/baeldung/httppojo/TodoAppClient.java Normal file
View File

@ -0,0 +1,107 @@
package com.baeldung.httppojo;
import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import java.util.List;
import java.util.concurrent.CompletionException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;
public class TodoAppClient {
ObjectMapper objectMapper = new ObjectMapper();
Gson gson = new GsonBuilder().create();
public String sampleApiRequest() throws Exception {
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://jsonplaceholder.typicode.com/todos"))
.build();
HttpResponse<String> response = client.send(request, BodyHandlers.ofString());
return response.body();
}
public Todo syncGson() throws Exception {
String response = sampleApiRequest();
List<Todo> todo = gson.fromJson(response, new TypeToken<List<Todo>>() {
}.getType());
return todo.get(1);
}
public Todo syncJackson() throws Exception {
String response = sampleApiRequest();
Todo[] todo = objectMapper.readValue(response, Todo[].class);
return todo[1];
}
public Todo asyncJackson() throws Exception {
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://jsonplaceholder.typicode.com/todos"))
.build();
TodoAppClient todoAppClient = new TodoAppClient();
List<Todo> todo = HttpClient.newHttpClient()
.sendAsync(request, BodyHandlers.ofString())
.thenApply(HttpResponse::body)
.thenApply(todoAppClient::readValueJackson)
.get();
return todo.get(1);
}
public Todo asyncGson() throws Exception {
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://jsonplaceholder.typicode.com/todos"))
.build();
TodoAppClient todoAppClient = new TodoAppClient();
List<Todo> todo = HttpClient.newHttpClient()
.sendAsync(request, BodyHandlers.ofString())
.thenApply(HttpResponse::body)
.thenApply(todoAppClient::readValueGson)
.get();
return todo.get(1);
}
List<Todo> readValueJackson(String content) {
try {
return objectMapper.readValue(content, new TypeReference<List<Todo>>() {
});
} catch (IOException ioe) {
throw new CompletionException(ioe);
}
}
List<Todo> readValueGson(String content) {
return gson.fromJson(content, new TypeToken<List<Todo>>() {
}.getType());
}
}

45
core-java-modules/core-java-11-3/src/test/java/com/baeldung/httppojo/HttpClientPojoClassUnitTest.java Normal file
View File

@ -0,0 +1,45 @@
package com.baeldung.httppojo;
import static org.junit.Assert.*;
import org.junit.Test;
public class HttpClientPojoClassUnitTest {
Todo expectedTodo = new Todo(1, 2, "quis ut nam facilis et officia qui", false);
@Test
public void givenSampleApiCall_whenResponseIsMappedByGson_thenCompareResponseMappedByGson() throws Exception {
TodoAppClient sampleGson = new TodoAppClient();
assertEquals(expectedTodo, sampleGson.syncGson());
}
@Test
public void givenSampleApiCall_whenResponseIsMappedByJackson_thenCompareResponseMappedByJackson() throws Exception {
TodoAppClient sampleJackson = new TodoAppClient();
assertEquals(expectedTodo, sampleJackson.syncJackson());
}
@Test
public void givenSampleRestApi_whenApiIsConsumedByHttpClient_thenCompareJsonString() throws Exception {
TodoAppClient sampleTest = new TodoAppClient();
assertNotNull(sampleTest.sampleApiRequest());
}
@Test
public void givenSampleApiAsyncCall_whenResponseIsMappedByJackson_thenCompareResponseMappedByJackson() throws Exception {
TodoAppClient sampleAsynJackson = new TodoAppClient();
assertEquals(expectedTodo, sampleAsynJackson.asyncJackson());
}
@Test
public void givenSampleApiAsyncCall_whenResponseIsMappedByGson_thenCompareResponseMappedByGson() throws Exception {
TodoAppClient sampleAsynGson = new TodoAppClient();
assertEquals(expectedTodo, sampleAsynGson.asyncGson());
}
}

122
core-java-modules/core-java-19/src/test/java/com/baeldung/features/JEP428StructuredConcurrencyUnitTest.java Normal file
View File

@ -0,0 +1,122 @@
package com.baeldung.features;
import jdk.incubator.concurrent.StructuredTaskScope;
import org.junit.jupiter.api.Test;
import java.time.Instant;
import java.util.List;
import java.util.concurrent.*;
import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
import static org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy;
public class JEP428StructuredConcurrencyUnitTest {
private static final String ERROR_MESSAGE = "Failed to get the result";
@Test
public void givenStructuredConcurrency_whenThrowingException_thenCorrect() {
assertThatThrownBy(() -> {
try (var scope = new StructuredTaskScope.ShutdownOnFailure()) {
Future<Shelter> shelter = scope.fork(this::getShelter);
Future<List<Dog>> dogs = scope.fork(this::getDogsWithException);
scope.throwIfFailed(e -> new RuntimeException(ERROR_MESSAGE));
scope.join();
Response response = new Response(shelter.resultNow(), dogs.resultNow());
assertThat(response).isNotNull();
assertThat(response.shelter()).isNotNull();
assertThat(response.dogs()).isNotNull();
assertThat(response.dogs().size()).isEqualTo(2);
}
}).isInstanceOf(RuntimeException.class)
.hasMessage(ERROR_MESSAGE);
}
@Test
public void givenStructuredConcurrency_whenSlowTasksReachesDeadline_thenCorrect() {
assertThatThrownBy(() -> {
try (var scope = new StructuredTaskScope.ShutdownOnFailure()) {
Future<Shelter> shelter = scope.fork(this::getShelter);
Future<List<Dog>> dogs = scope.fork(this::getDogsSlowly);
scope.throwIfFailed(e -> new RuntimeException(ERROR_MESSAGE));
scope.join();
scope.joinUntil(Instant.now().plusMillis(50));
Response response = new Response(shelter.resultNow(), dogs.resultNow());
assertThat(response).isNotNull();
assertThat(response.shelter()).isNotNull();
assertThat(response.dogs()).isNotNull();
assertThat(response.dogs().size()).isEqualTo(2);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}).isInstanceOf(IllegalStateException.class);
}
@Test
public void givenStructuredConcurrency_whenResultNow_thenCorrect() {
try (var scope = new StructuredTaskScope.ShutdownOnFailure()) {
Future<Shelter> shelter = scope.fork(this::getShelter);
Future<List<Dog>> dogs = scope.fork(this::getDogs);
scope.join();
Response response = new Response(shelter.resultNow(), dogs.resultNow());
assertThat(response).isNotNull();
assertThat(response.shelter()).isNotNull();
assertThat(response.dogs()).isNotNull();
assertThat(response.dogs().size()).isEqualTo(2);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
@Test
public void givenUnstructuredConcurrency_whenGet_thenCorrect() {
Future<Shelter> shelter;
Future<List<Dog>> dogs;
try (ExecutorService executorService = Executors.newFixedThreadPool(3)) {
shelter = executorService.submit(this::getShelter);
dogs = executorService.submit(this::getDogs);
Shelter theShelter = shelter.get(); // Join the shelter
List<Dog> theDogs = dogs.get(); // Join the dogs
Response response = new Response(theShelter, theDogs);
assertThat(response).isNotNull();
assertThat(response.shelter()).isNotNull();
assertThat(response.dogs()).isNotNull();
assertThat(response.dogs().size()).isEqualTo(2);
} catch (ExecutionException | InterruptedException e) {
throw new RuntimeException(e);
}
}
private Shelter getShelter() {
return new Shelter("Shelter");
}
private List<Dog> getDogs() {
return List.of(new Dog("Buddy"), new Dog("Simba"));
}
private List<Dog> getDogsWithException() {
throw new RuntimeException(ERROR_MESSAGE);
}
private List<Dog> getDogsSlowly() throws InterruptedException {
Thread.sleep(1500);
throw new RuntimeException(ERROR_MESSAGE);
}
record Shelter(String name) {
}
record Dog(String name) {
}
record Response(Shelter shelter, List<Dog> dogs) {
}
}

15
core-java-modules/core-java-collections-array-list/src/main/java/com/baeldung/initializearraylistwithnullorzeros/InitializeArrayListWithNullOrZeros.java Normal file
View File

@ -0,0 +1,15 @@
package com.baeldung.initializearraylistwithnullorzeros;
import java.util.ArrayList;
public class InitializeArrayListWithNullOrZeros {
public static void main(String[] args) {
ArrayList<Integer> arrayList = new ArrayList<>();
for (int i = 0; i< 10; i++) {
arrayList.add(null);
}
}
}

74
core-java-modules/core-java-collections-array-list/src/test/java/com/baeldung/initializearraylistwithnullorzeros/InitializeArrayListWithNullOrZerosUnitTest.java Normal file
View File

@ -0,0 +1,74 @@
package com.baeldung.initializearraylistwithnullorzeros;
import org.junit.Test;
import org.junit.jupiter.api.Assertions;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;
public class InitializeArrayListWithNullOrZerosUnitTest {
@Test
public void whenInitializingListWithNCopies_thenListIsCorrectlyPopulated() {
// when
ArrayList<Integer> list = IntStream.of(new int[10])
.boxed()
.collect(Collectors.toCollection(ArrayList::new));
// then
Assertions.assertEquals(10, list.size());
Assertions.assertTrue(list.stream().allMatch(elem -> elem == 0));
}
@Test
public void whenInitializingListWithStream_thenListIsCorrectlyPopulated() {
// when
ArrayList<Integer> listWithZeros = Stream.generate(() -> 0)
.limit(10).collect(Collectors.toCollection(ArrayList::new));
ArrayList<Object> listWithNulls = Stream.generate(() -> null)
.limit(10).collect(Collectors.toCollection(ArrayList::new));
// then
Assertions.assertEquals(10, listWithZeros.size());
Assertions.assertTrue(listWithZeros.stream().allMatch(elem -> elem == 0));
Assertions.assertEquals(10, listWithNulls.size());
Assertions.assertTrue(listWithNulls.stream().allMatch(Objects::isNull));
}
@Test public void whenInitializingListWithIntStream_thenListIsCorrectlyPopulated() {
// when
ArrayList<Integer> list = IntStream.of(new int[10])
.boxed()
.collect(Collectors.toCollection(ArrayList::new));
// then
Assertions.assertEquals(10, list.size());
Assertions.assertTrue(list.stream().allMatch(elem -> elem == 0)); }
@Test
public void whenInitializingListWithAsList_thenListIsCorrectlyPopulated() {
// when
Integer[] integers = new Integer[10];
Arrays.fill(integers, 0);
List<Integer> integerList = new ArrayList<>(Arrays.asList(integers));
// then
Assertions.assertEquals(10, integerList.size());
Assertions.assertTrue(integerList.stream().allMatch(elem -> elem == 0));
}
@Test
public void whenInitializingListWithVector_thenListIsCorrectlyPopulated() {
// when
List<Integer> integerList = new Vector<>() {{setSize(10);}};
// then
Assertions.assertEquals(10, integerList.size());
Assertions.assertTrue(integerList.stream().allMatch(Objects::isNull));
}
}

1
core-java-modules/core-java-collections-list-5/README.md
View File

@ -3,3 +3,4 @@
This module contains articles about the Java List collection
### Relevant Articles:
- [Java List Interface](https://www.baeldung.com/java-list-interface)

1
core-java-modules/core-java-exceptions-4/README.md
View File

@ -9,4 +9,5 @@ This module contains articles about core java exceptions
- [“Sneaky Throws” in Java](https://www.baeldung.com/java-sneaky-throws)
- [Get the Current Stack Trace in Java](https://www.baeldung.com/java-get-current-stack-trace)
- [Errors and Exceptions in Java](https://www.baeldung.com/java-errors-vs-exceptions)
- [Fix the IllegalArgumentException: No enum const class](https://www.baeldung.com/java-fix-no-enum-const-class)
- [[<-- Prev]](../core-java-exceptions-3)

26
core-java-modules/core-java-functional/pom.xml
View File

@ -14,4 +14,30 @@
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-inline</artifactId>
<version>${mockito-inline.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>core-java-functional</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<properties>
<mockito-inline.version>3.8.0</mockito-inline.version>
<assertj.version>3.22.0</assertj.version>
<commons-lang3.version>3.12.0</commons-lang3.version>
<vavr.version>0.10.4</vavr.version>
</properties>
</project>

17
core-java-modules/core-java-functional/src/main/java/com/baeldung/callbackfunctions/ConsumerCallback.java Normal file
View File

@ -0,0 +1,17 @@
package com.baeldung.callbackfunctions;
import java.util.function.Consumer;
public class ConsumerCallback {
public void getAge(int initialAge, Consumer<Integer> callback) {
callback.accept(initialAge);
}
public void increaseAge(int initialAge, int ageDifference, Consumer<Integer> callback) {
System.out.println("===== Increase age ====");
int newAge = initialAge + ageDifference;
callback.accept(newAge);
}
}

12
core-java-modules/core-java-functional/src/main/java/com/baeldung/callbackfunctions/EventListener.java Normal file
View File

@ -0,0 +1,12 @@
package com.baeldung.callbackfunctions;
public interface EventListener {
String onTrigger();
void respondToTrigger();
}

21
core-java-modules/core-java-functional/src/main/java/com/baeldung/callbackfunctions/asynchronous/AsynchronousEventConsumer.java Normal file
View File

@ -0,0 +1,21 @@
package com.baeldung.callbackfunctions.asynchronous;
import com.baeldung.callbackfunctions.EventListener;
public class AsynchronousEventConsumer{
private EventListener listener;
public AsynchronousEventConsumer(EventListener listener) {
this.listener = listener;
}
public void doAsynchronousOperation()
{
System.out.println("Performing operation in Asynchronous Task");
new Thread(() -> listener.onTrigger()).start();
}
}

19
core-java-modules/core-java-functional/src/main/java/com/baeldung/callbackfunctions/asynchronous/AsynchronousEventListenerImpl.java Normal file
View File

@ -0,0 +1,19 @@
package com.baeldung.callbackfunctions.asynchronous;
import com.baeldung.callbackfunctions.EventListener;
public class AsynchronousEventListenerImpl implements EventListener {
@Override
public String onTrigger()
{
respondToTrigger();
return "Asynchronously running callback function";
}
@Override
public void respondToTrigger(){
System.out.println("This is a side effect of the asynchronous trigger.");
}
}

22
core-java-modules/core-java-functional/src/main/java/com/baeldung/callbackfunctions/synchronous/SynchronousEventConsumer.java Normal file
View File

@ -0,0 +1,22 @@
package com.baeldung.callbackfunctions.synchronous;
import com.baeldung.callbackfunctions.EventListener;
public class SynchronousEventConsumer {
private final EventListener eventListener;
public SynchronousEventConsumer(EventListener listener)
{
this.eventListener = listener;
}
public String doSynchronousOperation()
{
System.out.println("Performing callback before synchronous Task");
return eventListener.onTrigger();
}
}

18
core-java-modules/core-java-functional/src/main/java/com/baeldung/callbackfunctions/synchronous/SynchronousEventListenerImpl.java Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung.callbackfunctions.synchronous;
import com.baeldung.callbackfunctions.EventListener;
public class SynchronousEventListenerImpl implements EventListener {
@Override
public String onTrigger()
{
return "Synchronously running callback function";
}
@Override
public void respondToTrigger(){
System.out.println("Response to trigger");
}
}

22
core-java-modules/core-java-functional/src/test/java/com/baeldung/callbackfunctions/AsynchronousCallbackUnitTest.java Normal file
View File

@ -0,0 +1,22 @@
package com.baeldung.callbackfunctions;
import org.junit.Test;
import org.mockito.Mockito;
import com.baeldung.callbackfunctions.EventListener;
import com.baeldung.callbackfunctions.asynchronous.AsynchronousEventConsumer;
import com.baeldung.callbackfunctions.asynchronous.AsynchronousEventListenerImpl;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
public class AsynchronousCallbackUnitTest {
@Test
public void whenCallbackIsInvokedAsynchronously_shouldRunAsynchronousOperation(){
EventListener listener = Mockito.mock(AsynchronousEventListenerImpl.class);
AsynchronousEventConsumer asynchronousEventListenerConsumer = new AsynchronousEventConsumer(listener);
asynchronousEventListenerConsumer.doAsynchronousOperation();
verify(listener, times(1)).onTrigger();
}
}

20
core-java-modules/core-java-functional/src/test/java/com/baeldung/callbackfunctions/ConsumerCallbackUnitTest.java Normal file
View File

@ -0,0 +1,20 @@
package com.baeldung.callbackfunctions;
import org.junit.jupiter.api.Test;
import com.baeldung.callbackfunctions.ConsumerCallback;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class ConsumerCallbackUnitTest {
@Test
public void whenIncreasingInitialAgeByGivenValueThroughCallback_shouldIncreaseAge(){
ConsumerCallback consumerCallback = new ConsumerCallback();
consumerCallback.getAge(20, (initialAge) -> {
int ageDifference = 10;
consumerCallback.increaseAge(initialAge, ageDifference, (newAge) -> {
assertEquals(initialAge + ageDifference, newAge);
});
});
}
}

22
core-java-modules/core-java-functional/src/test/java/com/baeldung/callbackfunctions/SynchronousCallbackUnitTest.java Normal file
View File

@ -0,0 +1,22 @@
package callbackFunctions;
import org.junit.jupiter.api.Test;
import com.baeldung.callbackfunctions.EventListener;
import com.baeldung.callbackfunctions.synchronous.SynchronousEventConsumer;
import com.baeldung.callbackfunctions.synchronous.SynchronousEventListenerImpl;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
public class SynchronousCallbackUnitTest {
@Test
public void whenCallbackIsInvokedSynchronously_shouldRunSynchronousOperation(){
EventListener listener = new SynchronousEventListenerImpl();
SynchronousEventConsumer synchronousEventConsumer = new SynchronousEventConsumer(listener);
String result = synchronousEventConsumer.doSynchronousOperation();
assertNotNull(result);
assertEquals("Synchronously running callback function", result);
}
}

2
core-java-modules/core-java-jvm-3/src/test/java/com/baeldung/inmemorycompilation/InMemoryCompilationUnitTest.java
View File

@ -41,7 +41,7 @@ public class InMemoryCompilationUnitTest {
boolean result = task.call();
if (result) {
if (!result) {
diagnostics.getDiagnostics()
.forEach(d -> LOGGER.error(String.valueOf(d)));
} else {

5
core-java-modules/core-java-lang-3/src/main/java/com/baeldung/transientkw/Book.java
View File

@ -11,6 +11,8 @@ public class Book implements Serializable {
private transient int copies;
private final transient String bookCategory = "Fiction";
private final transient String bookCategoryNewOperator = new String("Fiction with new Operator");
public String getBookName() {
return bookName;
}
@ -39,4 +41,7 @@ public class Book implements Serializable {
return bookCategory;
}
public String getBookCategoryNewOperator() {
return bookCategoryNewOperator;
}
}

10
core-java-modules/core-java-lang-3/src/test/java/com/baeldung/transientkw/TransientUnitTest.java
View File

@ -35,6 +35,16 @@ class TransientUnitTest {
assertEquals("Fiction", book2.getBookCategory());
}
@Test
void givenFinalTransientWithNewOperator_whenSerDe_thenValuePersisted() throws Exception {
Book book = new Book();
BookSerDe.serialize(book);
Book book2 = BookSerDe.deserialize();
assertNull(book2.getBookCategoryNewOperator());
}
@AfterAll
public static void cleanup() {
File file = new File(BookSerDe.fileName);

3
core-java-modules/core-java-lang-5/README.md
View File

@ -12,4 +12,5 @@ This module contains articles about core features in the Java language
- [Infinity in Java](https://www.baeldung.com/java-infinity)
- [Type Parameter vs Wildcard in Java Generics](https://www.baeldung.com/java-generics-type-parameter-vs-wildcard)
- [Convert Between int and char in Java](https://www.baeldung.com/java-convert-int-char)
-
- [Converting a Number from One Base to Another in Java](https://www.baeldung.com/java-converting-a-number-from-one-base-to-another)
- [Check if Command-Line Arguments Are Null in Java](https://www.baeldung.com/java-check-command-line-args)

20
core-java-modules/core-java-lang-5/pom.xml
View File

@ -14,6 +14,12 @@
<version>0.0.1-SNAPSHOT</version>
</parent>
<properties>
<commons-lang3.version>3.12.0</commons-lang3.version>
<reflections.version>0.10.2</reflections.version>
</properties>
<build>
<finalName>core-java-lang-5</finalName>
<resources>
@ -24,4 +30,18 @@
</resources>
</build>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.reflections</groupId>
<artifactId>reflections</artifactId>
<version>${reflections.version}</version>
</dependency>
</dependencies>
</project>

5
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/checkinterface/ChildClass1.java Normal file
View File

@ -0,0 +1,5 @@
package com.baeldung.checkinterface;
public class ChildClass1 implements ChildInterface1 {
}

5
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/checkinterface/ChildClass2.java Normal file
View File

@ -0,0 +1,5 @@
package com.baeldung.checkinterface;
public class ChildClass2 implements ChildInterface2 {
}

5
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/checkinterface/ChildInterface1.java Normal file
View File

@ -0,0 +1,5 @@
package com.baeldung.checkinterface;
public interface ChildInterface1 extends MasterInterface {
}

5
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/checkinterface/ChildInterface2.java Normal file
View File

@ -0,0 +1,5 @@
package com.baeldung.checkinterface;
public interface ChildInterface2 extends MasterInterface {
}

5
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/checkinterface/MasterClass.java Normal file
View File

@ -0,0 +1,5 @@
package com.baeldung.checkinterface;
public class MasterClass implements MasterInterface {
}

5
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/checkinterface/MasterInterface.java Normal file
View File

@ -0,0 +1,5 @@
package com.baeldung.checkinterface;
public interface MasterInterface {
}

12
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/commandline/CommandLineWithErrorHandling.java Normal file
View File

@ -0,0 +1,12 @@
package com.baeldung.commandline;
public class CommandLineWithErrorHandling {
public static void main(String[] args) {
if (args.length > 0) {
System.out.println(args[0]);
} else {
System.out.println("No command line arguments were provided.");
}
}
}

9
core-java-modules/core-java-lang-5/src/main/java/com/baeldung/commandline/CommandLineWithoutErrorHandling.java Normal file
View File

@ -0,0 +1,9 @@
package com.baeldung.commandline;
public class CommandLineWithoutErrorHandling {
public static void main(String[] args) {
System.out.println(args[0]);
}
}

154
core-java-modules/core-java-lang-5/src/test/java/com/baeldung/checkinterface/CheckInterfaceUnitTest.java Normal file
View File

@ -0,0 +1,154 @@
package com.baeldung.checkinterface;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.commons.lang3.ClassUtils;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.reflections.ReflectionUtils;
import org.reflections.Reflections;
public class CheckInterfaceUnitTest {
protected static Reflections reflections;
@BeforeAll
public static void initializeReflectionsLibrary() {
reflections = new Reflections("com.baeldung.checkinterface");
}
@Test
public void whenUsingReflectionGetInterfaces_thenDirectlyImplementedInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
List<Class<?>> interfaces = Arrays.asList(childClass2.getClass().getInterfaces());
assertEquals(1, interfaces.size());
assertTrue(interfaces.contains(ChildInterface2.class));
}
@Test
public void whenUsingReflectionGetInterfaces_thenParentInterfaceIsNotFound() {
ChildClass2 childClass2 = new ChildClass2();
List<Class<?>> interfaces = Arrays.asList(childClass2.getClass().getInterfaces());
assertFalse(interfaces.contains(MasterInterface.class));
}
@Test
public void whenUsingReflectionGetInterfacesRecursively_thenParentInterfaceIsFound() {
Set<Class<?>> interfaces = getAllExtendedOrImplementedInterfacesRecursively(ChildClass2.class);
assertTrue(interfaces.contains(ChildInterface2.class));
assertTrue(interfaces.contains(MasterInterface.class));
}
@Test
public void whenUsingReflectionIsAssignableFrom_thenDirectlyImplementedInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
assertTrue(ChildInterface2.class.isAssignableFrom(childClass2.getClass()));
}
@Test
public void whenUsingReflectionIsAssignableFrom_thenParentInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
assertTrue(MasterInterface.class.isAssignableFrom(childClass2.getClass()));
}
@Test
public void whenUsingReflectionIsInstance_thenDirectlyImplementedInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
assertTrue(ChildInterface2.class.isInstance(childClass2));
}
@Test
public void whenUsingReflectionIsInstance_thenParentInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
assertTrue(MasterInterface.class.isInstance(childClass2));
}
@Test
public void whenUsingReflectionInstanceOf_thenDirectlyImplementedInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
assertTrue(childClass2 instanceof ChildInterface2);
}
@Test
public void whenUsingReflectionInstanceOf_thenParentInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
assertTrue(childClass2 instanceof MasterInterface);
}
@Test
public void whenUsingCommons_thenDirectlyImplementedInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
List<Class<?>> interfaces = ClassUtils.getAllInterfaces(childClass2.getClass());
assertTrue(interfaces.contains(ChildInterface2.class));
}
@Test
public void whenUsingCommons_thenParentInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
List<Class<?>> interfaces = ClassUtils.getAllInterfaces(childClass2.getClass());
assertTrue(interfaces.contains(MasterInterface.class));
}
@Test
public void whenUsingReflections_thenDirectlyImplementedInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
Set<Class<?>> interfaces = reflections.get(ReflectionUtils.Interfaces.of(childClass2.getClass()));
assertTrue(interfaces.contains(ChildInterface2.class));
}
@Test
public void whenUsingReflections_thenParentInterfaceIsFound() {
ChildClass2 childClass2 = new ChildClass2();
Set<Class<?>> interfaces = reflections.get(ReflectionUtils.Interfaces.of(childClass2.getClass()));
assertTrue(interfaces.contains(MasterInterface.class));
}
static Set<Class<?>> getAllExtendedOrImplementedInterfacesRecursively(Class<?> clazz) {
Set<Class<?>> res = new HashSet<Class<?>>();
Class<?>[] interfaces = clazz.getInterfaces();
if (interfaces.length > 0) {
res.addAll(Arrays.asList(interfaces));
for (Class<?> interfaze : interfaces) {
res.addAll(getAllExtendedOrImplementedInterfacesRecursively(interfaze));
}
}
return res;
}
}

12
core-java-modules/core-java-lang-5/src/test/java/com/baeldung/commandline/CommandLineWithoutErrorHandlingUnitTest.java Normal file
View File

@ -0,0 +1,12 @@
package com.baeldung.commandline;
import org.junit.Test;
import static org.junit.Assert.fail;
public class CommandLineWithoutErrorHandlingUnitTest {
@Test(expected = NullPointerException.class)
public void givenNullCommandLineArgument_whenPassedToMainFunction_thenExpectNullPointerException() {
CommandLineWithoutErrorHandling.main(null);
}
}

78
core-java-modules/core-java-lang-oop-types-2/src/test/java/com/baeldung/enums/comparestrenum/CompareStringAndEnumUnitTest.java Normal file
View File

@ -0,0 +1,78 @@
package com.baeldung.enums.comparestrenum;
import org.junit.jupiter.api.Test;
import java.util.Arrays;
import java.util.Optional;
import static com.baeldung.enums.comparestrenum.Weekday.Fri;
import static com.baeldung.enums.comparestrenum.Weekday.Sat;
import static org.junit.jupiter.api.Assertions.*;
enum Weekday {
Mon("Monday"),
Tue("Tuesday"),
Wed("Wednesday"),
Thu("Thursday"),
Fri("Friday"),
Sat("Saturday");
private String fullName;
Weekday(String fullName) {
this.fullName = fullName;
}
public String getFullName() {
return fullName;
}
static Optional<Weekday> byFullNameIgnoreCase(String givenFullName) {
return Arrays.stream(values()).filter(it -> it.fullName.equalsIgnoreCase(givenFullName)).findAny();
}
static Optional<Weekday> byNameIgnoreCase(String givenName) {
return Arrays.stream(values()).filter(it -> it.name().equalsIgnoreCase(givenName)).findAny();
}
}
public class CompareStringAndEnumUnitTest {
private static final String SAT = "sAt";
private static final String SATURDAY = "sAtuRdAy";
private static final String TYPO_FRI = "ffri";
private static final String TYPO_FRIDAY = "ffriday";
@Test
void givenAString_whenCompareEnumWithName_thenGetExpectedResult() {
assertTrue(SAT.equalsIgnoreCase(Sat.name()));
assertFalse(TYPO_FRI.equalsIgnoreCase(Fri.name()));
}
@Test
void givenAString_whenCompareEnumWithProperty_thenGetExpectedResult() {
assertTrue(SATURDAY.equalsIgnoreCase(Sat.getFullName()));
assertFalse(TYPO_FRI.equalsIgnoreCase(Fri.getFullName()));
}
@Test
void givenAString_whenFindEnumByName_thenGetExpectedResult() {
Optional<Weekday> optResult = Weekday.byNameIgnoreCase(SAT);
assertTrue(optResult.isPresent());
assertEquals(Sat, optResult.get());
Optional<Weekday> optResult2 = Weekday.byNameIgnoreCase(TYPO_FRI);
assertFalse(optResult2.isPresent());
}
@Test
void givenAString_whenFindEnumByProperty_thenGetExpectedResult() {
Optional<Weekday> optResult = Weekday.byFullNameIgnoreCase(SATURDAY);
assertTrue(optResult.isPresent());
assertEquals(Sat, optResult.get());
Optional<Weekday> optResult2 = Weekday.byFullNameIgnoreCase(TYPO_FRIDAY);
assertFalse(optResult2.isPresent());
}
}

16
core-java-modules/core-java-networking-2/pom.xml
View File

@ -25,15 +25,20 @@
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>${javax.mail.version}</version>
<groupId>org.eclipse.angus</groupId>
<artifactId>angus-mail</artifactId>
<version>${angus.mail.version}</version>
</dependency>
<dependency>
<groupId>org.asynchttpclient</groupId>
<artifactId>async-http-client</artifactId>
<version>${async-http-client.version}</version>
</dependency>
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>${jakarta.bind.version}</version>
</dependency>
<dependency>
<groupId>com.icegreen</groupId>
<artifactId>greenmail</artifactId>
@ -48,9 +53,10 @@
<properties>
<httpclient.version>4.5.9</httpclient.version>
<javax.mail.version>1.5.0-b01</javax.mail.version>
<angus.mail.version>2.0.1</angus.mail.version>
<async-http-client.version>2.4.5</async-http-client.version>
<greenmail.version>1.5.8</greenmail.version>
<jakarta.bind.version>2.3.3</jakarta.bind.version>
<greenmail.version>2.0.0-alpha-3</greenmail.version>
</properties>
</project>

21
core-java-modules/core-java-networking-2/src/main/java/com/baeldung/mail/EmailService.java
View File

@ -1,19 +1,20 @@
package com.baeldung.mail;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import java.io.File;
import java.net.URI;
import java.util.Properties;
import jakarta.mail.Authenticator;
import jakarta.mail.Message;
import jakarta.mail.Multipart;
import jakarta.mail.PasswordAuthentication;
import jakarta.mail.Session;
import jakarta.mail.Transport;
import jakarta.mail.internet.InternetAddress;
import jakarta.mail.internet.MimeBodyPart;
import jakarta.mail.internet.MimeMessage;
import jakarta.mail.internet.MimeMultipart;
public class EmailService {
private String username;

26
core-java-modules/core-java-networking-2/src/main/java/com/baeldung/mail/mailwithattachment/MailWithAttachmentService.java
View File

@ -1,21 +1,23 @@
package com.baeldung.mail.mailwithattachment;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.util.Properties;
import jakarta.mail.Authenticator;
import jakarta.mail.BodyPart;
import jakarta.mail.Message;
import jakarta.mail.MessagingException;
import jakarta.mail.Multipart;
import jakarta.mail.PasswordAuthentication;
import jakarta.mail.Session;
import jakarta.mail.Transport;
import jakarta.mail.internet.InternetAddress;
import jakarta.mail.internet.MimeBodyPart;
import jakarta.mail.internet.MimeMessage;
import jakarta.mail.internet.MimeMultipart;
public class MailWithAttachmentService {
private final String username;
@ -37,7 +39,7 @@ public class MailWithAttachmentService {
props.put("mail.smtp.host", this.host);
props.put("mail.smtp.port", this.port);
return Session.getInstance(props, new javax.mail.Authenticator() {
return Session.getInstance(props, new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}

11
core-java-modules/core-java-networking-2/src/test/java/com/baeldung/download/FileDownloadIntegrationTest.java
View File

@ -1,10 +1,7 @@
package com.baeldung.download;
import org.junit.After;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.assertTrue;
import javax.xml.bind.DatatypeConverter;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Files;
@ -13,7 +10,11 @@ import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.concurrent.ExecutionException;
import static org.junit.Assert.assertTrue;
import javax.xml.bind.DatatypeConverter;
import org.junit.After;
import org.junit.BeforeClass;
import org.junit.Test;
public class FileDownloadIntegrationTest {

16
core-java-modules/core-java-networking-2/src/test/java/com/baeldung/mail/EmailServiceLiveTest.java
View File

@ -1,17 +1,19 @@
package com.baeldung.mail;
import com.icegreen.greenmail.junit.GreenMailRule;
import com.icegreen.greenmail.util.ServerSetupTest;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import java.io.IOException;
import com.icegreen.greenmail.junit.GreenMailRule;
import com.icegreen.greenmail.util.ServerSetupTest;
import static org.junit.Assert.assertEquals;
import jakarta.mail.MessagingException;
import jakarta.mail.internet.MimeMessage;
import jakarta.mail.internet.MimeMultipart;
public class EmailServiceLiveTest {

22
core-java-modules/core-java-networking-2/src/test/java/com/baeldung/mail/mailwithattachment/MailWithAttachmentServiceLiveTest.java
View File

@ -1,20 +1,20 @@
package com.baeldung.mail.mailwithattachment;
import static org.junit.Assert.assertEquals;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import com.icegreen.greenmail.configuration.GreenMailConfiguration;
import com.icegreen.greenmail.junit.GreenMailRule;
import com.icegreen.greenmail.util.GreenMailUtil;
import com.icegreen.greenmail.util.ServerSetupTest;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import javax.annotation.Resource;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import static org.junit.Assert.assertEquals;
import jakarta.mail.MessagingException;
import jakarta.mail.Session;
import jakarta.mail.internet.MimeMessage;
import jakarta.mail.internet.MimeMultipart;
public class MailWithAttachmentServiceLiveTest {
@ -29,7 +29,6 @@ public class MailWithAttachmentServiceLiveTest {
.withUser(USERNAME, PASSWORD)
);
@Resource
private MailWithAttachmentService emailService;
@Before
@ -73,5 +72,4 @@ public class MailWithAttachmentServiceLiveTest {
return GreenMailUtil.getBody(((MimeMultipart) receivedMessage.getContent())
.getBodyPart(2));
}
}

8
core-java-modules/core-java-networking-3/pom.xml
View File

@ -30,9 +30,9 @@
<version>${tomcat.embeded.version}</version>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>${javax.mail.version}</version>
<groupId>org.eclipse.angus</groupId>
<artifactId>angus-mail</artifactId>
<version>${angus.mail.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.seancfoley/ipaddress -->
<dependency>
@ -95,7 +95,7 @@
<seancfoley.ipaddress.version>5.3.3</seancfoley.ipaddress.version>
<jgonian.commons-ip-math.version>1.32</jgonian.commons-ip-math.version>
<googlecode.ipv6.version>0.17</googlecode.ipv6.version>
<javax.mail.version>1.6.2</javax.mail.version>
<angus.mail.version>2.0.1</angus.mail.version>
<apache.commons-validator.version>1.7</apache.commons-validator.version>
</properties>

24
core-java-modules/core-java-networking-3/src/main/java/com/baeldung/downloadattachments/DownloadEmailAttachments.java
View File

@ -6,16 +6,16 @@ import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.NoSuchProviderException;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.MimeBodyPart;
import jakarta.mail.Address;
import jakarta.mail.Folder;
import jakarta.mail.Message;
import jakarta.mail.MessagingException;
import jakarta.mail.Multipart;
import jakarta.mail.NoSuchProviderException;
import jakarta.mail.Part;
import jakarta.mail.Session;
import jakarta.mail.Store;
import jakarta.mail.internet.MimeBodyPart;
public class DownloadEmailAttachments {
private String downloadDirectory;
@ -24,7 +24,7 @@ public class DownloadEmailAttachments {
this.downloadDirectory = dir;
}
public void downloadEmailAttachments(String host, String port, String userName, String password) throws NoSuchProviderException, MessagingException, IOException {
public void downloadEmailAttachments(String host, String port, String userName, String password) throws MessagingException, IOException {
Properties properties = setMailServerProperties(host, port);
Store store = setSessionStoreProperties(userName, password, properties);
Folder inbox = store.getFolder("INBOX");
@ -67,7 +67,7 @@ public class DownloadEmailAttachments {
return downloadedAttachments;
}
public Store setSessionStoreProperties(String userName, String password, Properties properties) throws NoSuchProviderException, MessagingException {
public Store setSessionStoreProperties(String userName, String password, Properties properties) throws MessagingException {
Session session = Session.getDefaultInstance(properties);
Store store = session.getStore("pop3");

1
core-java-modules/core-java-numbers-5/README.md
View File

@ -6,3 +6,4 @@
- [List All Factors of a Number in Java](https://www.baeldung.com/java-list-factors-integer)
- [Make Division of Two Integers Result in a Float](https://www.baeldung.com/java-integer-division-float-result)
- [Creating Random Numbers With No Duplicates in Java](https://www.baeldung.com/java-unique-random-numbers)
- [Multiply a BigDecimal by an Integer in Java](https://www.baeldung.com/java-bigdecimal-multiply-integer)

26
core-java-modules/core-java-numbers-5/src/main/java/com/baeldung/IntegerNullOrZero.java Normal file
View File

@ -0,0 +1,26 @@
package com.baeldung;
import java.util.Optional;
import org.apache.commons.lang3.ObjectUtils;
public class IntegerNullOrZero {
private IntegerNullOrZero() {
throw new RuntimeException("This class cannot be instantiated.");
}
public static boolean usingStandardWay(Integer num) {
return num == null || num == 0;
}
public static boolean usingTernaryOperator(Integer num) {
return 0 == (num == null ? 0 : num);
}
public static boolean usingOptional(Integer num) {
return Optional.ofNullable(num).orElse(0) == 0;
}
public static boolean usingObjectUtils(Integer num) {
return ObjectUtils.defaultIfNull(num, 0) == 0;
}
}

22
core-java-modules/core-java-numbers-5/src/test/java/com/baeldung/bigdecimaltimesint/BigDecimalxIntegerUnitTest.java Normal file
View File

@ -0,0 +1,22 @@
package com.baeldung.bigdecimaltimesint;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.math.BigDecimal;
import org.junit.jupiter.api.Test;
public class BigDecimalxIntegerUnitTest {
private static final BigDecimal BIG = new BigDecimal("42.42");
private static final int INT = 10;
private static final BigDecimal EXPECTED = new BigDecimal("424.2");
@Test
void givenBigDecimalAndInt_whenTimes_thenGetExpectedResult() {
BigDecimal result = BIG.multiply(BigDecimal.valueOf(INT));
assertEquals(0, EXPECTED.compareTo(result));
assertThat(result).isEqualByComparingTo(EXPECTED);
}
}

69
core-java-modules/core-java-numbers-5/src/test/java/com/baeldung/intnullorzero/IntegerNullOrZeroUnitTest.java Normal file
View File

@ -0,0 +1,69 @@
package com.baeldung.intnullorzero;
import static com.baeldung.IntegerNullOrZero.usingObjectUtils;
import static com.baeldung.IntegerNullOrZero.usingOptional;
import static com.baeldung.IntegerNullOrZero.usingStandardWay;
import static com.baeldung.IntegerNullOrZero.usingTernaryOperator;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.junit.jupiter.api.Test;
public class IntegerNullOrZeroUnitTest {
@Test
void givenInts_whenUsingStandardWay_thenGetExpectedResult() {
int n0 = 0;
boolean result0 = usingStandardWay(n0);
assertTrue(result0);
boolean resultNull = usingStandardWay(null);
assertTrue(resultNull);
int n42 = 42;
boolean result42 = usingStandardWay(n42);
assertFalse(result42);
}
@Test
void givenInts_whenUsingTernaryOperator_thenGetExpectedResult() {
int n0 = 0;
boolean result0 = usingTernaryOperator(n0);
assertTrue(result0);
boolean resultNull = usingTernaryOperator(null);
assertTrue(resultNull);
int n42 = 42;
boolean result42 = usingTernaryOperator(n42);
assertFalse(result42);
}
@Test
void givenInts_whenUsingOptional_thenGetExpectedResult() {
int n0 = 0;
boolean result0 = usingOptional(n0);
assertTrue(result0);
boolean resultNull = usingOptional(null);
assertTrue(resultNull);
int n42 = 42;
boolean result42 = usingOptional(n42);
assertFalse(result42);
}
@Test
void givenInts_whenUsingObjectUtils_thenGetExpectedResult() {
int n0 = 0;
boolean result0 = usingObjectUtils(n0);
assertTrue(result0);
boolean resultNull = usingObjectUtils(null);
assertTrue(resultNull);
int n42 = 42;
boolean result42 = usingObjectUtils(n42);
assertFalse(result42);
}
}

6
core-java-modules/core-java-streams-4/src/main/java/com/baeldung/streams/processing/CustomBatchIterator.java
View File

@ -14,20 +14,20 @@ public class CustomBatchIterator<T> implements Iterator<List<T>> {
private List<T> currentBatch;
private final Iterator<T> iterator;
public CustomBatchIterator(Iterator<T> sourceIterator, int batchSize) {
private CustomBatchIterator(Iterator<T> sourceIterator, int batchSize) {
this.batchSize = batchSize;
this.iterator = sourceIterator;
}
@Override
public List<T> next() {
prepareNextBatch();
return currentBatch;
}
@Override
public boolean hasNext() {
prepareNextBatch();
return currentBatch != null && !currentBatch.isEmpty();
return iterator.hasNext();
}
public static <T> Stream<List<T>> batchStreamOf(Stream<T> stream, int batchSize) {

42
core-java-modules/core-java-streams-4/src/main/java/com/baeldung/streams/streamtoiterable/StreamToIterable.java Normal file
View File

@ -0,0 +1,42 @@
package com.baeldung.streams.streamtoiterable;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import joptsimple.internal.Strings;
public class StreamToIterable {
public String streamToIterableLambda(List<String> listOfStrings) {
Stream<String> stringStream = listOfStrings.stream();
StringBuilder sentence = new StringBuilder();
for (String eachString : (Iterable<String>) () -> stringStream.iterator()) {
doSomethingOnString(eachString, sentence);
}
return sentence.toString();
}
public String streamToIterableMethodReference(List<String> listOfStrings) {
Stream<String> stringStream = listOfStrings.stream();
StringBuilder sentence = new StringBuilder();
for (String eachString : (Iterable<String>) stringStream::iterator) {
doSomethingOnString(eachString, sentence);
}
return sentence.toString();
}
public String streamToList(List<String> listOfStrings) {
Stream<String> stringStream = listOfStrings.stream();
StringBuilder sentence = new StringBuilder();
for (String eachString : stringStream.collect(Collectors.toList())) {
doSomethingOnString(eachString, sentence);
}
return sentence.toString();
}
private void doSomethingOnString(String s, StringBuilder sentence) {
if (!Strings.isNullOrEmpty(s)) {
sentence.append(s);
}
}
}

48
core-java-modules/core-java-streams-4/src/test/java/com/baeldung/streams/streamtoiterable/StreamToIterableUnitTest.java Normal file
View File

@ -0,0 +1,48 @@
package com.baeldung.streams.streamtoiterable;
import java.util.ArrayList;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
public class StreamToIterableUnitTest {
@Test
public void givenList_whenLambdaIsUsed_ThenStreamAsIterable(){
StreamToIterable streamToIterable = new StreamToIterable();
String actualString = streamToIterable.streamToIterableLambda(getListOfStrings());
String expectedString = "Thisisasentencewithnospaces";
Assert.assertEquals(expectedString, actualString);
}
@Test
public void givenList_whenMethodReferenceIsUsed_ThenStreamAsIterable(){
StreamToIterable streamToIterable = new StreamToIterable();
String actualString = streamToIterable.streamToIterableMethodReference(getListOfStrings());
String expectedString = "Thisisasentencewithnospaces";
Assert.assertEquals(expectedString, actualString);
}
@Test
public void givenList_whenCollectedToList_ThenStreamAsIterable(){
StreamToIterable streamToIterable = new StreamToIterable();
String actualString = streamToIterable.streamToList(getListOfStrings());
String expectedString = "Thisisasentencewithnospaces";
Assert.assertEquals(expectedString, actualString);
}
private List<String> getListOfStrings(){
List<String> listOfStrings = new ArrayList<>();
listOfStrings.add("This");
listOfStrings.add("is");
listOfStrings.add("a");
listOfStrings.add(null);
listOfStrings.add("sentence");
listOfStrings.add("with");
listOfStrings.add("no");
listOfStrings.add(null);
listOfStrings.add("spaces");
return listOfStrings;
}
}

1
docker-modules/docker-caching/multi-module-caching/pom.xml
View File

@ -25,6 +25,7 @@
</dependencyManagement>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<guava.version>31.1-jre</guava.version>
</properties>

1
docker-modules/docker-caching/single-module-caching/pom.xml
View File

@ -48,6 +48,7 @@
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<guava.version>31.1-jre</guava.version>
</properties>

1
docker-modules/docker-compose-2/README.md Normal file
View File

@ -0,0 +1 @@
## Relevant Articles:

3
docker-modules/docker-compose-2/communication_same_machine/Dockerfile Normal file
View File

@ -0,0 +1,3 @@
FROM alpine:latest
MAINTAINER baeldung.com
RUN apk update && apk add iputils && apk add bash && apk add curl

7
docker-modules/docker-compose-2/communication_same_machine/Dockerfile.node Normal file
View File

@ -0,0 +1,7 @@
FROM node:8.16.1-alpine
WORKDIR /app
COPY host_docker_internal/package.json /app
COPY host_docker_internal/index.js /app
RUN npm install
CMD node index.js
EXPOSE 8080

20
docker-modules/docker-compose-2/communication_same_machine/dns/docker-compose.yml Normal file
View File

@ -0,0 +1,20 @@
services:
alpine-app-1:
container_name: alpine-app-1
image: alpine-app-1
build:
context: ..
dockerfile: Dockerfile
tty: true
ports:
- 8081:8081
alpine-app-2:
container_name: alpine-app-2
image: alpine-app-2
build:
context: ..
dockerfile: Dockerfile
tty: true
ports:
- 8080:8080

29
docker-modules/docker-compose-2/communication_same_machine/host_docker_internal/docker-compose.yml Normal file
View File

@ -0,0 +1,29 @@
services:
alpine-app-1:
container_name: alpine-app-1
extra_hosts: # for linux hosts since version 20.10
- host.docker.internal:host-gateway
build:
context: ..
dockerfile: Dockerfile
image: alpine-app-1
tty: true
networks:
- first-network
node-app:
container_name: node-app
build:
context: ..
dockerfile: Dockerfile.node
image: node-app
ports:
- 8080:8080
networks:
- second-network
networks:
first-network:
driver: bridge
second-network:
driver: bridge

10
docker-modules/docker-compose-2/communication_same_machine/host_docker_internal/index.js Normal file
View File

@ -0,0 +1,10 @@
var express = require('express')
var app = express()
app.get('/', function (req, res) {
res.send('Hello World!')
})
app.listen(8080, function () {
console.log('app listening on port 8080!')
})

14
docker-modules/docker-compose-2/communication_same_machine/host_docker_internal/package.json Normal file
View File

@ -0,0 +1,14 @@
{
"name": "host_docker_internal",
"version": "1.0.0",
"description": "node js app",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "Baeldung",
"license": "ISC",
"dependencies": {
"express": "^4.18.2"
}
}

34
docker-modules/docker-compose-2/communication_same_machine/static_ip_bridge/docker-compose.yml Normal file
View File

@ -0,0 +1,34 @@
services:
alpine-app-1:
container_name: alpine-app-1
build:
context: ..
dockerfile: Dockerfile
image: alpine-app-1
tty: true
ports:
- 8080:8080
networks:
network-example:
ipv4_address: 10.5.0.2
alpine-app-2:
container_name: alpine-app-2
build:
context: ..
dockerfile: Dockerfile
image: alpine-app-2
tty: true
ports:
- 8081:8081
networks:
network-example:
ipv4_address: 10.5.0.3
networks:
network-example:
driver: bridge
ipam:
config:
- subnet: 10.5.0.0/16
gateway: 10.5.0.1

36
docker-modules/docker-compose-2/communication_same_machine/static_ip_macvlan/docker-compose.yml Normal file
View File

@ -0,0 +1,36 @@
services:
alpine-app-1:
container_name: alpine-app-1
build:
context: ..
dockerfile: Dockerfile
image: alpine-app-1
tty: true
ports:
- 8080:8080
networks:
network-example:
ipv4_address: 192.168.2.2
alpine-app-2:
container_name: alpine-app-2
build:
context: ..
dockerfile: Dockerfile
image: alpine-app-2
tty: true
ports:
- 8081:8081
networks:
network-example:
ipv4_address: 192.168.2.3
networks:
network-example:
driver: macvlan
driver_opts:
parent: enp0s3
ipam:
config:
- subnet: 192.168.2.0/24
gateway: 192.168.2.1

16
docker-modules/docker-compose-2/pom.xml Normal file
View File

@ -0,0 +1,16 @@
<?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>docker-compose-2</artifactId>
<description>Demo project for Spring Boot and Docker - Module docker-compose-2</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-boot-2</relativePath>
</parent>
</project>

1
docker-modules/pom.xml
View File

@ -18,6 +18,7 @@
<modules>
<module>docker-caching</module>
<module>docker-compose</module>
<module>docker-compose-2</module>
<module>docker-containers</module>
<module>docker-images</module>
<module>docker-spring-boot</module>

190
httpclient-simple/src/test/java/com/baeldung/httpclient/HttpClientTimeoutLiveTest.java
View File

@ -1,129 +1,171 @@
package com.baeldung.httpclient;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.Mockito.when;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.TimeUnit;
import org.apache.http.HttpResponse;
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.params.ClientPNames;
import org.apache.http.config.SocketConfig;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.params.HttpParams;
import org.junit.After;
import org.junit.Ignore;
import org.junit.Test;
import org.apache.hc.client5.http.ConnectTimeoutException;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.config.ConnectionConfig;
import org.apache.hc.client5.http.config.RequestConfig;
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.HttpClientBuilder;
public class HttpClientTimeoutLiveTest {
import org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager;
private CloseableHttpResponse response;
import org.apache.hc.core5.http.HttpStatus;
import org.apache.hc.core5.http.io.SocketConfig;
import org.apache.hc.core5.util.Timeout;
@After
public final void after() throws IllegalStateException, IOException {
ResponseUtil.closeResponse(response);
}
// tests
@Test
public final void givenUsingOldApi_whenSettingTimeoutViaParameter_thenCorrect() throws IOException {
import com.baeldung.handler.CustomHttpClientResponseHandler;
DefaultHttpClient httpClient = new DefaultHttpClient();
int timeout = 5; // seconds
HttpParams httpParams = httpClient.getParams();
httpParams.setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, timeout * 1000);
httpParams.setParameter(CoreConnectionPNames.SO_TIMEOUT, timeout * 1000);
httpParams.setParameter(ClientPNames.CONN_MANAGER_TIMEOUT, new Long(timeout * 1000));
final HttpGet request = new HttpGet("http://www.github.com");
HttpResponse execute = httpClient.execute(request);
assertThat(execute.getStatusLine().getStatusCode(), equalTo(200));
}
class HttpClientTimeoutLiveTest {
@Test
public final void givenUsingNewApi_whenSettingTimeoutViaRequestConfig_thenCorrect() throws IOException {
final int timeout = 2;
final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
final HttpGet request = new HttpGet("http://www.github.com");
response = client.execute(request);
assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
}
@Test
public final void givenUsingNewApi_whenSettingTimeoutViaSocketConfig_thenCorrect() throws IOException {
void givenUsingNewApi_whenSettingTimeoutViaHighLevelApi_thenCorrect() throws IOException {
final int timeout = 2;
final SocketConfig config = SocketConfig.custom().setSoTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultSocketConfig(config).build();
ConnectionConfig connConfig = ConnectionConfig.custom()
.setConnectTimeout(timeout, TimeUnit.MILLISECONDS)
.setSocketTimeout(timeout, TimeUnit.MILLISECONDS)
.build();
RequestConfig requestConfig = RequestConfig.custom()
.setConnectionRequestTimeout(Timeout.ofMilliseconds(2000L))
.build();
BasicHttpClientConnectionManager cm = new BasicHttpClientConnectionManager();
cm.setConnectionConfig(connConfig);
final HttpGet request = new HttpGet("http://www.github.com");
response = client.execute(request);
try (CloseableHttpClient client = HttpClientBuilder.create()
.setDefaultRequestConfig(requestConfig)
.setConnectionManager(cm)
.build();
assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
CloseableHttpResponse response = (CloseableHttpResponse) client
.execute(request, new CustomHttpClientResponseHandler())) {
final int statusCode = response.getCode();
assertThat(statusCode, equalTo(HttpStatus.SC_OK));
}
}
@Test
public final void givenUsingNewApi_whenSettingTimeoutViaHighLevelApi_thenCorrect() throws IOException {
final int timeout = 5;
void givenUsingNewApi_whenSettingTimeoutViaSocketConfig_thenCorrect() throws IOException {
final int timeout = 2000;
final SocketConfig config = SocketConfig.custom().setSoTimeout(timeout, TimeUnit.MILLISECONDS).build();
final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
BasicHttpClientConnectionManager cm = new BasicHttpClientConnectionManager();
cm.setSocketConfig(config);
final HttpGet request = new HttpGet("http://www.github.com");
response = client.execute(request);
try (CloseableHttpClient client = HttpClientBuilder.create()
.setConnectionManager(cm)
.build();
assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
CloseableHttpResponse response = (CloseableHttpResponse) client
.execute(request, new CustomHttpClientResponseHandler())) {
final int statusCode = response.getCode();
assertThat(statusCode, equalTo(HttpStatus.SC_OK));
}
}
/**
* This simulates a timeout against a domain with multiple routes/IPs to it (not a single raw IP)
*/
@Test(expected = ConnectTimeoutException.class)
@Ignore
public final void givenTimeoutIsConfigured_whenTimingOut_thenTimeoutException() throws IOException {
@Disabled
void givenTimeoutIsConfigured_whenTimingOut_thenTimeoutException() throws IOException {
final int timeout = 3;
final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
ConnectionConfig connConfig = ConnectionConfig.custom()
.setConnectTimeout(timeout, TimeUnit.MILLISECONDS)
.setSocketTimeout(timeout, TimeUnit.MILLISECONDS)
.build();
RequestConfig requestConfig = RequestConfig.custom()
.setConnectionRequestTimeout(Timeout.ofMilliseconds(3000L))
.build();
BasicHttpClientConnectionManager cm = new BasicHttpClientConnectionManager();
cm.setConnectionConfig(connConfig);
final HttpGet request = new HttpGet("http://www.google.com:81");
client.execute(request);
assertThrows(ConnectTimeoutException.class, () -> {
try (CloseableHttpClient client = HttpClientBuilder.create()
.setDefaultRequestConfig(requestConfig)
.setConnectionManager(cm)
.build();
CloseableHttpResponse response = (CloseableHttpResponse) client
.execute(request, new CustomHttpClientResponseHandler())) {
final int statusCode = response.getCode();
assertThat(statusCode, equalTo(HttpStatus.SC_OK));
}
});
}
@Test
public void whenSecuredRestApiIsConsumed_then200OK() throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
void whenSecuredRestApiIsConsumed_then200OK() throws IOException {
int timeout = 20000; // milliseconds
ConnectionConfig connConfig = ConnectionConfig.custom()
.setConnectTimeout(timeout, TimeUnit.MILLISECONDS)
.setSocketTimeout(timeout, TimeUnit.MILLISECONDS)
.build();
RequestConfig requestConfig = RequestConfig.custom()
.setConnectionRequestTimeout(Timeout.ofMilliseconds(20000L))
.build();
int timeout = 20; // seconds
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(timeout * 1000)
.setConnectTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
HttpGet getMethod = new HttpGet("http://localhost:8082/httpclient-simple/api/bars/1");
getMethod.setConfig(requestConfig);
int hardTimeout = 5; // seconds
BasicHttpClientConnectionManager cm = new BasicHttpClientConnectionManager();
cm.setConnectionConfig(connConfig);
int hardTimeout = 5000; // milliseconds
TimerTask task = new TimerTask() {
@Override
public void run() {
getMethod.abort();
}
};
new Timer(true).schedule(task, hardTimeout * 1000);
new Timer(true).schedule(task, hardTimeout);
try (CloseableHttpClient client = HttpClientBuilder.create()
.setDefaultRequestConfig(requestConfig)
.setConnectionManager(cm)
.build();
CloseableHttpResponse response = (CloseableHttpResponse) client
.execute(getMethod, new CustomHttpClientResponseHandler())) {
final int statusCode = response.getCode();
System.out.println("HTTP Status of response: " + statusCode);
assertThat(statusCode, equalTo(HttpStatus.SC_OK));
}
HttpResponse response = httpClient.execute(getMethod);
System.out.println("HTTP Status of response: " + response.getStatusLine().getStatusCode());
}
}

116
httpclient-simple/src/test/java/com/baeldung/httpclient/HttpClientTimeoutV4LiveTest.java Normal file
View File

@ -0,0 +1,116 @@
package com.baeldung.httpclient;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;
import org.apache.http.HttpResponse;
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.config.SocketConfig;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
class HttpClientTimeoutV4LiveTest {
private CloseableHttpResponse response;
@AfterEach
public final void after() throws IllegalStateException, IOException {
ResponseUtil.closeResponse(response);
}
@Test
void givenUsingNewApi_whenSettingTimeoutViaRequestConfig_thenCorrect() throws IOException {
final int timeout = 2;
final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
final HttpGet request = new HttpGet("http://www.github.com");
response = client.execute(request);
assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
}
@Test
void givenUsingNewApi_whenSettingTimeoutViaSocketConfig_thenCorrect() throws IOException {
final int timeout = 2;
final SocketConfig config = SocketConfig.custom().setSoTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultSocketConfig(config).build();
final HttpGet request = new HttpGet("http://www.github.com");
response = client.execute(request);
assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
}
@Test
void givenUsingNewApi_whenSettingTimeoutViaHighLevelApi_thenCorrect() throws IOException {
final int timeout = 5;
final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
final HttpGet request = new HttpGet("http://www.github.com");
response = client.execute(request);
assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
}
/**
* This simulates a timeout against a domain with multiple routes/IPs to it (not a single raw IP)
*/
@Test
@Disabled
public final void givenTimeoutIsConfigured_whenTimingOut_thenTimeoutException() throws IOException {
final int timeout = 3;
final RequestConfig config = RequestConfig.custom().setConnectTimeout(timeout * 1000).setConnectionRequestTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
final HttpGet request = new HttpGet("http://www.google.com:81");
assertThrows(ConnectTimeoutException.class, () -> {
client.execute(request);
});
}
@Test
void whenSecuredRestApiIsConsumed_then200OK() throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
int timeout = 20; // seconds
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(timeout * 1000)
.setConnectTimeout(timeout * 1000).setSocketTimeout(timeout * 1000).build();
HttpGet getMethod = new HttpGet("http://localhost:8082/httpclient-simple/api/bars/1");
getMethod.setConfig(requestConfig);
int hardTimeout = 5; // seconds
TimerTask task = new TimerTask() {
@Override
public void run() {
getMethod.abort();
}
};
new Timer(true).schedule(task, hardTimeout * 1000);
HttpResponse response = httpClient.execute(getMethod);
System.out.println("HTTP Status of response: " + response.getStatusLine().getStatusCode());
}
}

16
logging-modules/logback/pom.xml
View File

@ -65,14 +65,14 @@
</exclusions>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>${javax.mail.version}</version>
<groupId>org.eclipse.angus</groupId>
<artifactId>angus-mail</artifactId>
<version>${angus.mail.version}</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>javax.activation-api</artifactId>
<version>${javax.activation.version}</version>
<groupId>org.eclipse.angus</groupId>
<artifactId>angus-activation</artifactId>
<version>${angus.activation.version}</version>
<scope>runtime</scope>
</dependency>
</dependencies>
@ -116,8 +116,8 @@
<json.version>20180130</json.version>
<logback.contrib.version>0.1.5</logback.contrib.version>
<docx4j.version>3.3.5</docx4j.version>
<javax.mail.version>1.6.2</javax.mail.version>
<javax.activation.version>1.2.0</javax.activation.version>
<angus.mail.version>2.0.1</angus.mail.version>
<angus.activation.version>2.0.0</angus.activation.version>
<logback.version>1.3.5</logback.version>
<slf4j.version>2.0.4</slf4j.version>
</properties>

2
persistence-modules/scylladb/README.md Normal file
View File

@ -0,0 +1,2 @@
## Relevant Articles
- [Introduction to ScyllaDB with Java](https://www.baeldung.com/java-scylladb)

1
spring-boot-modules/pom.xml
View File

@ -51,6 +51,7 @@
<module>spring-boot-libraries</module>
<module>spring-boot-libraries-2</module>
<module>spring-boot-process-automation</module>
<module>spring-boot-logging-logback</module>
<module>spring-boot-logging-log4j2</module>
<module>spring-boot-mvc</module>
<module>spring-boot-mvc-2</module>

10
spring-boot-modules/spring-boot-keycloak/pom.xml
View File

@ -18,10 +18,6 @@
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
@ -81,7 +77,7 @@
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>2.3.1</version>
<version>2.5.0</version>
<executions>
<execution>
<id>xjc</id>
@ -101,4 +97,8 @@
</plugins>
</build>
<properties>
<start-class>com.baeldung.keycloak.SpringBoot</start-class>
</properties>
</project>

2
spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/SecurityConfig.java
View File

@ -30,7 +30,7 @@ class SecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/customers*", "/users*")
.antMatchers("/customers*")
.hasRole("USER")
.anyRequest()
.permitAll();

4
spring-boot-modules/spring-boot-logging-log4j2/pom.xml
View File

@ -55,6 +55,10 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-spring-boot</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>

25
spring-boot-modules/spring-boot-logging-log4j2/src/main/java/com/baeldung/extensions/SpringBootLog4j2ExtensionsApplication.java Normal file
View File

@ -0,0 +1,25 @@
package com.baeldung.extensions;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.PropertySource;
@SpringBootApplication
@PropertySource("classpath:application-log4j2-extensions.properties")
public class SpringBootLog4j2ExtensionsApplication {
private static final Logger logger = LogManager.getLogger(SpringBootLog4j2ExtensionsApplication.class);
public static void main(String[] args) {
SpringApplication.run(SpringBootLog4j2ExtensionsApplication.class, args);
logger.trace("Trace log message");
logger.debug("Debug log message");
logger.info("Info log message");
logger.error("Error log message");
logger.warn("Warn log message");
logger.fatal("Fatal log message");
}
}

2
spring-boot-modules/spring-boot-logging-log4j2/src/main/resources/application-log4j2-extensions.properties Normal file
View File

@ -0,0 +1,2 @@
logging.config=classpath:log4j2-spring.xml
spring.application.name=log4j2-extension

18
spring-boot-modules/spring-boot-logging-log4j2/src/main/resources/log4j2-spring.xml
View File

@ -7,6 +7,11 @@
pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{1.}}{bright,yellow}: %msg%n%throwable" />
</Console>
<Console name="Console-Extensions" target="SYSTEM_OUT">
<PatternLayout
pattern="%d %p %c{1.} [%t] ${spring:spring.application.name} %m%n" />
</Console>
<RollingFile name="RollingFile"
fileName="./logs/spring-boot-logger-log4j2.log"
filePattern="./logs/$${date:yyyy-MM}/spring-boot-logger-log4j2-%d{-dd-MMMM-yyyy}-%i.log.gz">
@ -37,7 +42,20 @@
</Root>
<!-- LOG "com.baeldung*" at TRACE level -->
<SpringProfile name="!development, !production">
<Logger name="com.baeldung" level="trace"></Logger>
</SpringProfile>
<SpringProfile name="development">
<Logger name="com.baeldung.extensions" level="debug"></Logger>
</SpringProfile>
<SpringProfile name="production">
<Logger name="com.baeldung.extensions" level="error">
<AppenderRef ref="Console-Extensions" />
</Logger>
</SpringProfile>
</Loggers>
</Configuration>

1
spring-boot-modules/spring-boot-logging-log4j2/src/main/resources/log4j2.system.properties Normal file
View File

@ -0,0 +1 @@
log4j2.debug=true

29
spring-boot-modules/spring-boot-logging-logback/.gitignore vendored Normal file
View File

@ -0,0 +1,29 @@
/target/
!.mvn/wrapper/maven-wrapper.jar
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/build/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
/logs/
/bin/
/mvnw
/mvnw.cmd

6
spring-boot-modules/spring-boot-logging-logback/README.md Normal file
View File

@ -0,0 +1,6 @@
## Spring Boot Logging with Logback
This module contains articles about logging in Spring Boot projects with Logback.
### Relevant Articles:

37
spring-boot-modules/spring-boot-logging-logback/pom.xml Normal file
View File

@ -0,0 +1,37 @@
<?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>spring-boot-logging-logback</artifactId>
<name>spring-boot-logging-logback</name>
<packaging>jar</packaging>
<description>Demo project for Spring Boot Logging with Logback</description>
<parent>
<groupId>com.baeldung.spring-boot-modules</groupId>
<artifactId>spring-boot-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</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>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

22
spring-boot-modules/spring-boot-logging-logback/src/main/java/com/baeldung/extensions/SpringBootLogbackExtensionsApplication.java Normal file
View File

@ -0,0 +1,22 @@
package com.baeldung.extensions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootLogbackExtensionsApplication {
private static final Logger logger = LoggerFactory.getLogger(SpringBootLogbackExtensionsApplication.class);
public static void main(String[] args) {
SpringApplication.run(SpringBootLogbackExtensionsApplication.class, args);
logger.debug("Debug log message");
logger.info("Info log message");
logger.error("Error log message");
logger.warn("Warn log message");
logger.trace("Trace log message");
}
}

1
spring-boot-modules/spring-boot-logging-logback/src/main/resources/application.properties Normal file
View File

@ -0,0 +1 @@
spring.application.name=logback-extension

33
spring-boot-modules/spring-boot-logging-logback/src/main/resources/logback-spring.xml Normal file
View File

@ -0,0 +1,33 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property name="LOGS" value="./logs" />
<springProperty scope="context" name="application.name" source="spring.application.name" />
<springProfile name="development">
<appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
</layout>
</appender>
<root level="info">
<appender-ref ref="Console" />
</root>
</springProfile>
<springProfile name="production">
<appender name="RollingFile" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOGS}/${application.name}.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${LOGS}/archived/${application.name}-%d{yyyy-MM-dd}.log</fileNamePattern>
</rollingPolicy>
</appender>
<root level="info">
<appender-ref ref="RollingFile" />
</root>
</springProfile>
</configuration>

1
spring-boot-modules/spring-boot-mvc-5/README.md
View File

@ -4,3 +4,4 @@ This module contains articles about Spring Web MVC in Spring Boot projects.
### Relevant Articles:
- [Enable and Disable Endpoints at Runtime With Spring Boot](https://www.baeldung.com/spring-boot-enable-disable-endpoints-at-runtime)
- [Extracting a Custom Header From the Request](https://www.baeldung.com/spring-extract-custom-header-request)

13
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/app/Application.java
View File

@ -1,19 +1,18 @@
package com.baeldung.web.log.app;
import javax.servlet.ServletRegistration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.security.servlet.ManagementWebSecurityAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.PropertySource;
import com.baeldung.web.log.config.CustomeRequestLoggingFilter;
@EnableAutoConfiguration
@ComponentScan("com.baeldung.web.log")
@PropertySource("application-log.properties")
@SpringBootApplication
@SpringBootApplication(exclude = {
SecurityAutoConfiguration.class,
ManagementWebSecurityAutoConfiguration.class
})
public class Application {
public static void main(final String[] args) {

30
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/app/CachedHttpServletRequest.java Normal file
View File

@ -0,0 +1,30 @@
package com.baeldung.web.log.app;
import org.springframework.util.StreamUtils;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import java.io.*;
public class CachedHttpServletRequest extends HttpServletRequestWrapper {
private byte[] cachedPayload;
public CachedHttpServletRequest(HttpServletRequest request) throws IOException {
super(request);
InputStream requestInputStream = request.getInputStream();
this.cachedPayload = StreamUtils.copyToByteArray(requestInputStream);
}
@Override
public ServletInputStream getInputStream() {
return new CachedServletInputStream(this.cachedPayload);
}
@Override
public BufferedReader getReader() {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(this.cachedPayload);
return new BufferedReader(new InputStreamReader(byteArrayInputStream));
}
}

45
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/app/CachedServletInputStream.java Normal file
View File

@ -0,0 +1,45 @@
package com.baeldung.web.log.app;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
public class CachedServletInputStream extends ServletInputStream {
private final static Logger LOGGER = LoggerFactory.getLogger(CachedServletInputStream.class);
private InputStream cachedInputStream;
public CachedServletInputStream(byte[] cachedBody) {
this.cachedInputStream = new ByteArrayInputStream(cachedBody);
}
@Override
public boolean isFinished() {
try {
return cachedInputStream.available() == 0;
} catch (IOException exp) {
LOGGER.error(exp.getMessage());
}
return false;
}
@Override
public boolean isReady() {
return true;
}
@Override
public void setReadListener(ReadListener readListener) {
throw new UnsupportedOperationException();
}
@Override
public int read() throws IOException {
return cachedInputStream.read();
}
}

33
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/app/RequestCachingFilter.java Normal file
View File

@ -0,0 +1,33 @@
package com.baeldung.web.log.app;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
@Order(value = Ordered.HIGHEST_PRECEDENCE)
@Component
@WebFilter(filterName = "RequestCachingFilter", urlPatterns = "/*")
public class RequestCachingFilter extends OncePerRequestFilter {
private final static Logger LOGGER = LoggerFactory.getLogger(RequestCachingFilter.class);
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
CachedHttpServletRequest cachedHttpServletRequest = new CachedHttpServletRequest(request);
LOGGER.info("REQUEST DATA: " + IOUtils.toString(cachedHttpServletRequest.getInputStream(), StandardCharsets.UTF_8));
filterChain.doFilter(cachedHttpServletRequest, response);
}
}

44
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/app/TaxiFareRequestInterceptor.java
View File

@ -1,44 +0,0 @@
package com.baeldung.web.log.app;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import org.springframework.web.util.ContentCachingRequestWrapper;
import com.baeldung.web.log.util.RequestLoggingUtil;
@Component
public class TaxiFareRequestInterceptor extends HandlerInterceptorAdapter {
private final static Logger LOGGER = LoggerFactory.getLogger(TaxiFareRequestInterceptor.class);
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
String postData;
HttpServletRequest requestCacheWrapperObject = null;
try {
// Uncomment to produce the stream closed issue
// postData = RequestLoggingUtil.getStringFromInputStream(request.getInputStream());
// To overcome request stream closed issue
requestCacheWrapperObject = new ContentCachingRequestWrapper(request);
requestCacheWrapperObject.getParameterMap();
} catch (Exception exception) {
exception.printStackTrace();
} finally {
postData = RequestLoggingUtil.readPayload(requestCacheWrapperObject);
LOGGER.info("REQUEST DATA: " + postData);
}
return true;
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
LOGGER.info("RESPONSE: " + response.getStatus());
}
}

27
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/config/CustomWebAppInitializer.java
View File

@ -1,27 +0,0 @@
package com.baeldung.web.log.config;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.WebApplicationInitializer;
public class CustomWebAppInitializer implements WebApplicationInitializer {
@Override
public void onStartup(ServletContext container) throws ServletException {
AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
context.setConfigLocation("com.baeldung.web.log");
container.addListener(new ContextLoaderListener(context));
ServletRegistration.Dynamic dispatcher = container.addServlet("dispatcher", new DispatcherServlet(context));
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping("/");
container.addFilter("customRequestLoggingFilter", CustomeRequestLoggingFilter.class).addMappingForServletNames(null, false, "dispatcher");
}
}

12
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/config/CustomeRequestLoggingFilter.java
View File

@ -1,12 +0,0 @@
package com.baeldung.web.log.config;
import org.springframework.web.filter.CommonsRequestLoggingFilter;
public class CustomeRequestLoggingFilter extends CommonsRequestLoggingFilter {
public CustomeRequestLoggingFilter() {
super.setIncludeQueryString(true);
super.setIncludePayload(true);
super.setMaxPayloadLength(10000);
}
}

19
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/config/TaxiFareMVCConfig.java
View File

@ -1,19 +0,0 @@
package com.baeldung.web.log.config;
import com.baeldung.web.log.app.TaxiFareRequestInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class TaxiFareMVCConfig implements WebMvcConfigurer {
@Autowired
private TaxiFareRequestInterceptor taxiFareRequestInterceptor;
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(taxiFareRequestInterceptor).addPathPatterns("/taxifare/*/");
}
}

38
spring-boot-modules/spring-boot-runtime/src/main/java/com/baeldung/web/log/util/RequestLoggingUtil.java
View File

@ -1,38 +0,0 @@
package com.baeldung.web.log.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.IOUtils;
import org.springframework.web.util.ContentCachingRequestWrapper;
import org.springframework.web.util.WebUtils;
public class RequestLoggingUtil {
public static String getStringFromInputStream(InputStream is) {
StringWriter writer = new StringWriter();
String encoding = "UTF-8";
try {
IOUtils.copy(is, writer, encoding);
} catch (IOException e) {
e.printStackTrace();
}
return writer.toString();
}
public static String readPayload(final HttpServletRequest request) throws IOException {
String payloadData = null;
ContentCachingRequestWrapper contentCachingRequestWrapper = WebUtils.getNativeRequest(request, ContentCachingRequestWrapper.class);
if (null != contentCachingRequestWrapper) {
byte[] buf = contentCachingRequestWrapper.getContentAsByteArray();
if (buf.length > 0) {
payloadData = new String(buf, 0, buf.length, contentCachingRequestWrapper.getCharacterEncoding());
}
}
return payloadData;
}
}

4
spring-boot-modules/spring-boot-runtime/src/main/resources/logback.xml
View File

@ -7,6 +7,10 @@
</encoder>
</appender>
<logger name="org.springframework.web.filter.CommonsRequestLoggingFilter">
<level value="DEBUG" />
</logger>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>

30
spring-boot-modules/spring-boot-runtime/src/test/java/com/baeldung/web/controller/TaxiFareControllerIntegrationTest.java
View File

@ -1,23 +1,19 @@
package com.baeldung.web.controller;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import com.baeldung.web.log.app.Application;
import com.baeldung.web.log.data.TaxiRide;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.context.annotation.Configuration;
import org.springframework.boot.web.server.LocalServerPort;
import org.springframework.boot.test.web.server.LocalServerPort;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import com.baeldung.web.log.app.Application;
import com.baeldung.web.log.data.TaxiRide;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = { Application.class, TaxiFareControllerIntegrationTest.SecurityConfig.class}, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@SpringBootTest(classes = { Application.class}, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class TaxiFareControllerIntegrationTest {
@LocalServerPort
@ -25,8 +21,6 @@ public class TaxiFareControllerIntegrationTest {
@Test
public void givenRequest_whenFetchTaxiFareRateCard_thanOK() {
System.out.println(port);
String URL = "http://localhost:" + port + "/spring-rest";
TestRestTemplate testRestTemplate = new TestRestTemplate();
TaxiRide taxiRide = new TaxiRide(true, 10l);
@ -37,16 +31,4 @@ public class TaxiFareControllerIntegrationTest {
assertThat(fare, equalTo("200"));
}
@Configuration
static class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
System.out.println("security being set");
http
.authorizeRequests()
.anyRequest().permitAll()
.and()
.csrf().disable();
}
}
}

44
spring-core-6/pom.xml
View File

@ -10,27 +10,39 @@
<url>http://www.baeldung.com</url>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>${spring.boot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.mock-server</groupId>
<artifactId>mockserver-netty</artifactId>
<version>${mockserver.version}</version>
</dependency>
<dependency>
<groupId>org.mock-server</groupId>
<artifactId>mockserver-client-java</artifactId>
<version>${mockserver.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>${spring.boot.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit-jupiter.version}</version>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
@ -76,13 +88,23 @@
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>17</source>
<target>17</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<spring.boot.version>2.7.5</spring.boot.version>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<mockserver.version>5.14.0</mockserver.version>
</properties>
</project>

3
spring-core-6/src/main/java/com/baeldung/httpinterface/Book.java Normal file
View File

@ -0,0 +1,3 @@
package com.baeldung.httpinterface;
public record Book(long id, String title, String author, int year) {}

23
spring-core-6/src/main/java/com/baeldung/httpinterface/BooksClient.java Normal file
View File

@ -0,0 +1,23 @@
package com.baeldung.httpinterface;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.client.WebClient;
import org.springframework.web.reactive.function.client.support.WebClientAdapter;
import org.springframework.web.service.invoker.HttpServiceProxyFactory;
@Component
public class BooksClient {
private final BooksService booksService;
public BooksClient(WebClient webClient) {
HttpServiceProxyFactory httpServiceProxyFactory =
HttpServiceProxyFactory.builder(WebClientAdapter.forClient(webClient))
.build();
booksService = httpServiceProxyFactory.createClient(BooksService.class);
}
public BooksService getBooksService() {
return booksService;
}
}

26
spring-core-6/src/main/java/com/baeldung/httpinterface/BooksService.java Normal file
View File

@ -0,0 +1,26 @@
package com.baeldung.httpinterface;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.service.annotation.DeleteExchange;
import org.springframework.web.service.annotation.GetExchange;
import org.springframework.web.service.annotation.PostExchange;
import java.util.List;
interface BooksService {
@GetExchange("/books")
List<Book> getBooks();
@GetExchange("/books/{id}")
Book getBook(@PathVariable long id);
@PostExchange("/books")
Book saveBook(@RequestBody Book book);
@DeleteExchange("/books/{id}")
ResponseEntity<Void> deleteBook(@PathVariable long id);
}

Some files were not shown because too many files have changed in this diff Show More