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java-tutorials
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Merge branch 'master' into pr/720-tim-bootstrap-security

This commit is contained in:
slavisa-baeldung 2016-10-29 19:24:37 +02:00
parent 63c6da7d9f 412a93ce68
commit be45787757
502 changed files with 5324 additions and 2462 deletions
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4
apache-cxf/cxf-introduction/pom.xml
View File

@ -11,6 +11,7 @@
</parent>
<properties>
<cxf.version>3.1.6</cxf.version>
<surefire.version>2.19.1</surefire.version>
</properties>
<build>
<plugins>
@ -26,7 +27,7 @@
<version>2.19.1</version>
<configuration>
<excludes>
<exclude>**/StudentTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>
@ -44,4 +45,5 @@
<version>${cxf.version}</version>
</dependency>
</dependencies>
</project>

30
apache-cxf/cxf-introduction/src/test/java/com/baeldung/cxf/introduction/StudentTest.java → apache-cxf/cxf-introduction/src/test/java/com/baeldung/cxf/introduction/StudentLiveTest.java
View File

@ -2,20 +2,16 @@ package com.baeldung.cxf.introduction;
import static org.junit.Assert.assertEquals;
import org.junit.Before;
import org.junit.Test;
import java.util.Map;
import javax.xml.namespace.QName;
import javax.xml.ws.Service;
import javax.xml.ws.soap.SOAPBinding;
import com.baeldung.cxf.introduction.Baeldung;
import com.baeldung.cxf.introduction.Student;
import com.baeldung.cxf.introduction.StudentImpl;
import org.junit.Before;
import org.junit.Test;
public class StudentTest {
public class StudentLiveTest {
private static QName SERVICE_NAME = new QName("http://introduction.cxf.baeldung.com/", "Baeldung");
private static QName PORT_NAME = new QName("http://introduction.cxf.baeldung.com/", "BaeldungPort");
@ -25,7 +21,7 @@ public class StudentTest {
{
service = Service.create(SERVICE_NAME);
String endpointAddress = "http://localhost:8080/baeldung";
final String endpointAddress = "http://localhost:8080/baeldung";
service.addPort(PORT_NAME, SOAPBinding.SOAP11HTTP_BINDING, endpointAddress);
}
@ -37,28 +33,28 @@ public class StudentTest {
@Test
public void whenUsingHelloMethod_thenCorrect() {
String endpointResponse = baeldungProxy.hello("Baeldung");
String localResponse = baeldungImpl.hello("Baeldung");
final String endpointResponse = baeldungProxy.hello("Baeldung");
final String localResponse = baeldungImpl.hello("Baeldung");
assertEquals(localResponse, endpointResponse);
}
@Test
public void whenUsingHelloStudentMethod_thenCorrect() {
Student student = new StudentImpl("John Doe");
String endpointResponse = baeldungProxy.helloStudent(student);
String localResponse = baeldungImpl.helloStudent(student);
final Student student = new StudentImpl("John Doe");
final String endpointResponse = baeldungProxy.helloStudent(student);
final String localResponse = baeldungImpl.helloStudent(student);
assertEquals(localResponse, endpointResponse);
}
@Test
public void usingGetStudentsMethod_thenCorrect() {
Student student1 = new StudentImpl("Adam");
final Student student1 = new StudentImpl("Adam");
baeldungProxy.helloStudent(student1);
Student student2 = new StudentImpl("Eve");
final Student student2 = new StudentImpl("Eve");
baeldungProxy.helloStudent(student2);
Map<Integer, Student> students = baeldungProxy.getStudents();
final Map<Integer, Student> students = baeldungProxy.getStudents();
assertEquals("Adam", students.get(1).getName());
assertEquals("Eve", students.get(2).getName());
}

3
apache-cxf/cxf-jaxrs-implementation/pom.xml
View File

@ -13,6 +13,7 @@
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<cxf.version>3.1.7</cxf.version>
<httpclient.version>4.5.2</httpclient.version>
<surefire.version>2.19.1</surefire.version>
</properties>
<build>
<plugins>
@ -28,7 +29,7 @@
<version>2.19.1</version>
<configuration>
<excludes>
<exclude>**/ServiceTest</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>

4
apache-cxf/cxf-jaxrs-implementation/src/main/java/com/baeldung/cxf/jaxrs/implementation/Baeldung.java → apache-cxf/cxf-jaxrs-implementation/src/main/java/com/baeldung/cxf/jaxrs/implementation/CourseRepository.java
View File

@ -9,7 +9,7 @@ import java.util.Map;
@Path("baeldung")
@Produces("text/xml")
public class Baeldung {
public class CourseRepository {
private Map<Integer, Course> courses = new HashMap<>();
{
@ -69,4 +69,4 @@ public class Baeldung {
}
return null;
}
}
}

6
apache-cxf/cxf-jaxrs-implementation/src/main/java/com/baeldung/cxf/jaxrs/implementation/RestfulServer.java
View File

@ -7,8 +7,8 @@ import org.apache.cxf.jaxrs.lifecycle.SingletonResourceProvider;
public class RestfulServer {
public static void main(String args[]) throws Exception {
JAXRSServerFactoryBean factoryBean = new JAXRSServerFactoryBean();
factoryBean.setResourceClasses(Baeldung.class);
factoryBean.setResourceProvider(new SingletonResourceProvider(new Baeldung()));
factoryBean.setResourceClasses(CourseRepository.class);
factoryBean.setResourceProvider(new SingletonResourceProvider(new CourseRepository()));
factoryBean.setAddress("http://localhost:8080/");
Server server = factoryBean.create();
@ -18,4 +18,4 @@ public class RestfulServer {
server.destroy();
System.exit(0);
}
}
}

105
apache-cxf/cxf-jaxrs-implementation/src/test/java/com/baeldung/cxf/jaxrs/implementation/ServiceTest.java → apache-cxf/cxf-jaxrs-implementation/src/test/java/com/baeldung/cxf/jaxrs/implementation/ServiceLiveTest.java
View File

@ -1,5 +1,14 @@
package com.baeldung.cxf.jaxrs.implementation;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import javax.xml.bind.JAXB;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpPost;
@ -11,119 +20,111 @@ import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import javax.xml.bind.JAXB;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import static org.junit.Assert.assertEquals;
public class ServiceTest {
public class ServiceLiveTest {
private static final String BASE_URL = "http://localhost:8080/baeldung/courses/";
private static CloseableHttpClient client;
@BeforeClass
public static void createClient() {
client = HttpClients.createDefault();
}
@AfterClass
public static void closeClient() throws IOException {
client.close();
}
@Test
public void whenUpdateNonExistentCourse_thenReceiveNotFoundResponse() throws IOException {
HttpPut httpPut = new HttpPut(BASE_URL + "3");
InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("non_existent_course.xml");
final HttpPut httpPut = new HttpPut(BASE_URL + "3");
final InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("non_existent_course.xml");
httpPut.setEntity(new InputStreamEntity(resourceStream));
httpPut.setHeader("Content-Type", "text/xml");
HttpResponse response = client.execute(httpPut);
final HttpResponse response = client.execute(httpPut);
assertEquals(404, response.getStatusLine().getStatusCode());
}
@Test
public void whenUpdateUnchangedCourse_thenReceiveNotModifiedResponse() throws IOException {
HttpPut httpPut = new HttpPut(BASE_URL + "1");
InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("unchanged_course.xml");
final HttpPut httpPut = new HttpPut(BASE_URL + "1");
final InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("unchanged_course.xml");
httpPut.setEntity(new InputStreamEntity(resourceStream));
httpPut.setHeader("Content-Type", "text/xml");
HttpResponse response = client.execute(httpPut);
final HttpResponse response = client.execute(httpPut);
assertEquals(304, response.getStatusLine().getStatusCode());
}
@Test
public void whenUpdateValidCourse_thenReceiveOKResponse() throws IOException {
HttpPut httpPut = new HttpPut(BASE_URL + "2");
InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("changed_course.xml");
final HttpPut httpPut = new HttpPut(BASE_URL + "2");
final InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("changed_course.xml");
httpPut.setEntity(new InputStreamEntity(resourceStream));
httpPut.setHeader("Content-Type", "text/xml");
HttpResponse response = client.execute(httpPut);
final HttpResponse response = client.execute(httpPut);
assertEquals(200, response.getStatusLine().getStatusCode());
Course course = getCourse(2);
final Course course = getCourse(2);
assertEquals(2, course.getId());
assertEquals("Apache CXF Support for RESTful", course.getName());
}
@Test
public void whenCreateConflictStudent_thenReceiveConflictResponse() throws IOException {
HttpPost httpPost = new HttpPost(BASE_URL + "1/students");
InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("conflict_student.xml");
final HttpPost httpPost = new HttpPost(BASE_URL + "1/students");
final InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("conflict_student.xml");
httpPost.setEntity(new InputStreamEntity(resourceStream));
httpPost.setHeader("Content-Type", "text/xml");
HttpResponse response = client.execute(httpPost);
final HttpResponse response = client.execute(httpPost);
assertEquals(409, response.getStatusLine().getStatusCode());
}
@Test
public void whenCreateValidStudent_thenReceiveOKResponse() throws IOException {
HttpPost httpPost = new HttpPost(BASE_URL + "2/students");
InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("created_student.xml");
final HttpPost httpPost = new HttpPost(BASE_URL + "2/students");
final InputStream resourceStream = this.getClass().getClassLoader().getResourceAsStream("created_student.xml");
httpPost.setEntity(new InputStreamEntity(resourceStream));
httpPost.setHeader("Content-Type", "text/xml");
HttpResponse response = client.execute(httpPost);
final HttpResponse response = client.execute(httpPost);
assertEquals(200, response.getStatusLine().getStatusCode());
Student student = getStudent(2, 3);
final Student student = getStudent(2, 3);
assertEquals(3, student.getId());
assertEquals("Student C", student.getName());
}
@Test
public void whenDeleteInvalidStudent_thenReceiveNotFoundResponse() throws IOException {
HttpDelete httpDelete = new HttpDelete(BASE_URL + "1/students/3");
HttpResponse response = client.execute(httpDelete);
final HttpDelete httpDelete = new HttpDelete(BASE_URL + "1/students/3");
final HttpResponse response = client.execute(httpDelete);
assertEquals(404, response.getStatusLine().getStatusCode());
}
}
@Test
public void whenDeleteValidStudent_thenReceiveOKResponse() throws IOException {
HttpDelete httpDelete = new HttpDelete(BASE_URL + "1/students/1");
HttpResponse response = client.execute(httpDelete);
final HttpDelete httpDelete = new HttpDelete(BASE_URL + "1/students/1");
final HttpResponse response = client.execute(httpDelete);
assertEquals(200, response.getStatusLine().getStatusCode());
Course course = getCourse(1);
final Course course = getCourse(1);
assertEquals(1, course.getStudents().size());
assertEquals(2, course.getStudents().get(0).getId());
assertEquals("Student B", course.getStudents().get(0).getName());
}
private Course getCourse(int courseOrder) throws IOException {
URL url = new URL(BASE_URL + courseOrder);
InputStream input = url.openStream();
final URL url = new URL(BASE_URL + courseOrder);
final InputStream input = url.openStream();
return JAXB.unmarshal(new InputStreamReader(input), Course.class);
}
private Student getStudent(int courseOrder, int studentOrder) throws IOException {
URL url = new URL(BASE_URL + courseOrder + "/students/" + studentOrder);
InputStream input = url.openStream();
final URL url = new URL(BASE_URL + courseOrder + "/students/" + studentOrder);
final InputStream input = url.openStream();
return JAXB.unmarshal(new InputStreamReader(input), Student.class);
}
}

4
apache-cxf/cxf-spring/pom.xml
View File

@ -51,7 +51,7 @@
<version>${surefire.version}</version>
<configuration>
<excludes>
<exclude>StudentTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>
@ -60,7 +60,7 @@
<profiles>
<profile>
<id>integration</id>
<id>live</id>
<build>
<plugins>
<plugin>

2
apache-cxf/cxf-spring/src/test/java/com/baeldung/cxf/spring/StudentTest.java → apache-cxf/cxf-spring/src/test/java/com/baeldung/cxf/spring/StudentLiveTest.java
View File

@ -6,7 +6,7 @@ import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class StudentTest {
public class StudentLiveTest {
private ApplicationContext context = new AnnotationConfigApplicationContext(ClientConfiguration.class);
private Baeldung baeldungProxy = (Baeldung) context.getBean("client");

0
autovalue-tutorial/README.md → autovalue/README.md
View File

0
autovalue-tutorial/pom.xml → autovalue/pom.xml
View File

0
autovalue-tutorial/src/main/java/com/baeldung/autovalue/AutoValueMoney.java → autovalue/src/main/java/com/baeldung/autovalue/AutoValueMoney.java
View File

0
autovalue-tutorial/src/main/java/com/baeldung/autovalue/AutoValueMoneyWithBuilder.java → autovalue/src/main/java/com/baeldung/autovalue/AutoValueMoneyWithBuilder.java
View File

0
autovalue-tutorial/src/main/java/com/baeldung/autovalue/Foo.java → autovalue/src/main/java/com/baeldung/autovalue/Foo.java
View File

0
autovalue-tutorial/src/main/java/com/baeldung/autovalue/ImmutableMoney.java → autovalue/src/main/java/com/baeldung/autovalue/ImmutableMoney.java
View File

0
autovalue-tutorial/src/main/java/com/baeldung/autovalue/MutableMoney.java → autovalue/src/main/java/com/baeldung/autovalue/MutableMoney.java
View File

0
autovalue-tutorial/src/test/java/com/baeldung/autovalue/MoneyTest.java → autovalue/src/test/java/com/baeldung/autovalue/MoneyTest.java
View File

52
cdi/pom.xml
View File

@ -45,8 +45,60 @@
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
<configuration>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*LiveTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<spring.version>4.3.1.RELEASE</spring.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
</properties>
</project>

2
cdi/src/test/java/com/baeldung/test/TestInterceptor.java → cdi/src/test/java/com/baeldung/test/InterceptorIntegrationTest.java
View File

@ -10,7 +10,7 @@ import org.junit.Test;
import com.baeldung.interceptor.AuditedInterceptor;
import com.baeldung.service.SuperService;
public class TestInterceptor {
public class InterceptorIntegrationTest {
Weld weld;
WeldContainer container;

6
cdi/src/test/java/com/baeldung/test/TestSpringInterceptor.java → cdi/src/test/java/com/baeldung/test/SpringInterceptorIntegrationTest.java
View File

@ -16,19 +16,23 @@ import com.baeldung.spring.service.SpringSuperService;
@RunWith(SpringRunner.class)
@ContextConfiguration(classes = { AppConfig.class })
public class TestSpringInterceptor {
public class SpringInterceptorIntegrationTest {
@Autowired
SpringSuperService springSuperService;
@Autowired
private List<String> accumulator;
//
@Test
public void givenService_whenServiceAndAspectExecuted_thenOk() {
String code = "123456";
String result = springSuperService.getInfoFromService(code);
Assert.assertThat(accumulator.size(), is(2));
Assert.assertThat(accumulator.get(0), is("Call to getInfoFromService"));
Assert.assertThat(accumulator.get(1), is("Method called successfully: getInfoFromService"));
}
}

24
core-java-8/README.md
View File

@ -1,24 +0,0 @@
=========
## Core Java 8 Cookbooks and Examples
### Relevant Articles:
- [Java 8 – Powerful Comparison with Lambdas](http://www.baeldung.com/java-8-sort-lambda)
- [Java – Directory Size](http://www.baeldung.com/java-folder-size)
- [Java – Try with Resources](http://www.baeldung.com/java-try-with-resources)
- [A Guide to the Java ExecutorService](http://www.baeldung.com/java-executor-service-tutorial)
- [Java 8 New Features](http://www.baeldung.com/java-8-new-features)
- [Lambda Expressions and Functional Interfaces: Tips and Best Practices](http://www.baeldung.com/java-8-lambda-expressions-tips)
- [The Double Colon Operator in Java 8](http://www.baeldung.com/java-8-double-colon-operator)
- [Java 8 Streams Advanced](http://www.baeldung.com/java-8-streams)
- [Java 8 Collectors](http://www.baeldung.com/java-8-collectors)
- [Convert String to int or Integer in Java](http://www.baeldung.com/java-convert-string-to-int-or-integer)
- [Convert char to String in Java](http://www.baeldung.com/java-convert-char-to-string)
- [Guide to Java 8’s Functional Interfaces](http://www.baeldung.com/java-8-functional-interfaces)
- [Guide To CompletableFuture](http://www.baeldung.com/java-completablefuture)
- [Introduction to Thread Pools in Java](http://www.baeldung.com/thread-pool-java-and-guava)
- [Guide to Java 8 Collectors](http://www.baeldung.com/java-8-collectors)
- [The Java 8 Stream API Tutorial](http://www.baeldung.com/java-8-streams)
- [New Features in Java 8](http://www.baeldung.com/java-8-new-features)
- [Introduction to Java 8 Streams](http://www.baeldung.com/java-8-streams-introduction)
- [Guide to the Fork/Join Framework in Java](http://www.baeldung.com/java-fork-join)

142
core-java-8/pom.xml
View File

@ -1,142 +0,0 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<version>1.0.0-SNAPSHOT</version>
<artifactId>core-java8</artifactId>
<name>core-java8</name>
<dependencies>
<!-- utils -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.0</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.3.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<!-- test scoped -->
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>${org.hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.5.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>core-java-8</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- logging -->
<org.slf4j.version>1.7.13</org.slf4j.version>
<logback.version>1.0.13</logback.version>
<!-- various -->
<hibernate-validator.version>5.1.3.Final</hibernate-validator.version>
<!-- util -->
<guava.version>19.0</guava.version>
<commons-lang3.version>3.4</commons-lang3.version>
<!-- testing -->
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
<!-- maven plugins -->
<maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
<maven-war-plugin.version>2.6</maven-war-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
<maven-resources-plugin.version>2.7</maven-resources-plugin.version>
</properties>
</project>

13
core-java-8/src/main/java/.gitignore vendored
View File

@ -1,13 +0,0 @@
*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

91
core-java-8/src/main/java/com/baeldung/enums/Pizza.java
View File

@ -1,91 +0,0 @@
package com.baeldung.enums;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.List;
import java.util.stream.Collectors;
public class Pizza {
private static EnumSet<PizzaStatusEnum> deliveredPizzaStatuses =
EnumSet.of(PizzaStatusEnum.DELIVERED);
private PizzaStatusEnum status;
public enum PizzaStatusEnum {
ORDERED(5) {
@Override
public boolean isOrdered() {
return true;
}
},
READY(2) {
@Override
public boolean isReady() {
return true;
}
},
DELIVERED(0) {
@Override
public boolean isDelivered() {
return true;
}
};
private int timeToDelivery;
public boolean isOrdered() {
return false;
}
public boolean isReady() {
return false;
}
public boolean isDelivered() {
return false;
}
public int getTimeToDelivery() {
return timeToDelivery;
}
PizzaStatusEnum(int timeToDelivery) {
this.timeToDelivery = timeToDelivery;
}
}
public PizzaStatusEnum getStatus() {
return status;
}
public void setStatus(PizzaStatusEnum status) {
this.status = status;
}
public boolean isDeliverable() {
return this.status.isReady();
}
public void printTimeToDeliver() {
System.out.println("Time to delivery is " + this.getStatus().getTimeToDelivery() + " days");
}
public static List<Pizza> getAllUndeliveredPizzas(List<Pizza> input) {
return input.stream().filter((s) -> !deliveredPizzaStatuses.contains(s.getStatus())).collect(Collectors.toList());
}
public static EnumMap<PizzaStatusEnum, List<Pizza>> groupPizzaByStatus(List<Pizza> pzList) {
return pzList.stream().collect(
Collectors.groupingBy(Pizza::getStatus,
() -> new EnumMap<>(PizzaStatusEnum.class), Collectors.toList()));
}
public void deliver() {
if (isDeliverable()) {
PizzaDeliverySystemConfiguration.getInstance().getDeliveryStrategy().deliver(this);
this.setStatus(PizzaStatusEnum.DELIVERED);
}
}
}

18
core-java-8/src/main/java/com/baeldung/enums/PizzaDeliveryStrategy.java
View File

@ -1,18 +0,0 @@
package com.baeldung.enums;
public enum PizzaDeliveryStrategy {
EXPRESS {
@Override
public void deliver(Pizza pz) {
System.out.println("Pizza will be delivered in express mode");
}
},
NORMAL {
@Override
public void deliver(Pizza pz) {
System.out.println("Pizza will be delivered in normal mode");
}
};
public abstract void deliver(Pizza pz);
}

22
core-java-8/src/main/java/com/baeldung/enums/PizzaDeliverySystemConfiguration.java
View File

@ -1,22 +0,0 @@
package com.baeldung.enums;
public enum PizzaDeliverySystemConfiguration {
INSTANCE;
PizzaDeliverySystemConfiguration() {
// Do the configuration initialization which
// involves overriding defaults like delivery strategy
}
private PizzaDeliveryStrategy deliveryStrategy = PizzaDeliveryStrategy.NORMAL;
public static PizzaDeliverySystemConfiguration getInstance() {
return INSTANCE;
}
public PizzaDeliveryStrategy getDeliveryStrategy() {
return deliveryStrategy;
}
}

BIN
core-java-8/src/main/resources/compressed.zip
View File

Binary file not shown.

16
core-java-8/src/main/resources/logback.xml
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@ -1,16 +0,0 @@
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>web - %date [%thread] %-5level %logger{36} - %message%n
</pattern>
</encoder>
</appender>
<!-- <logger name="org.springframework" level="WARN" /> -->
<root level="INFO">
<appender-ref ref="STDOUT"/>
</root>
</configuration>

1
core-java-8/src/main/resources/unzipTest/test1.txt
View File

@ -1 +0,0 @@
Hello World!

1
core-java-8/src/main/resources/zipTest/test1.txt
View File

@ -1 +0,0 @@
Hello World!

1
core-java-8/src/main/resources/zipTest/test2.txt
View File

@ -1 +0,0 @@
My Name is John

1
core-java-8/src/main/resources/zipTest/testFolder/test3.txt
View File

@ -1 +0,0 @@
My Name is Tom

1
core-java-8/src/main/resources/zipTest/testFolder/test4.txt
View File

@ -1 +0,0 @@
My Name is Jane

1
core-java-8/src/test/resources/test.txt
View File

@ -1 +0,0 @@
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse facilisis neque sed turpis venenatis, non dignissim risus volutpat.

18
core-java/README.md
View File

@ -18,3 +18,21 @@
- [MD5 Hashing in Java](http://www.baeldung.com/java-md5)
- [Guide to the Java ArrayList](http://www.baeldung.com/java-arraylist)
- [Guide to Java Reflection](http://www.baeldung.com/java-reflection)
- [A Guide to Java Sockets](http://www.baeldung.com/a-guide-to-java-sockets)
- [Java 8 Collectors](http://www.baeldung.com/java-8-collectors)
- [Guide To CompletableFuture](http://www.baeldung.com/java-completablefuture)
- [Guide to Java 8’s Functional Interfaces](http://www.baeldung.com/java-8-functional-interfaces)
- [Convert char to String in Java](http://www.baeldung.com/java-convert-char-to-string)
- [Random List Element](http://www.baeldung.com/java-random-list-element)
- [Convert String to int or Integer in Java](http://www.baeldung.com/java-convert-string-to-int-or-integer)
- [Java 8 – Powerful Comparison with Lambdas](http://www.baeldung.com/java-8-sort-lambda)
- [Java – Directory Size](http://www.baeldung.com/java-folder-size)
- [Java – Try with Resources](http://www.baeldung.com/java-try-with-resources)
- [A Guide to the Java ExecutorService](http://www.baeldung.com/java-executor-service-tutorial)
- [Java 8 New Features](http://www.baeldung.com/java-8-new-features)
- [Lambda Expressions and Functional Interfaces: Tips and Best Practices](http://www.baeldung.com/java-8-lambda-expressions-tips)
- [The Double Colon Operator in Java 8](http://www.baeldung.com/java-8-double-colon-operator)
- [Java 8 Streams Advanced](http://www.baeldung.com/java-8-streams)
- [Introduction to Thread Pools in Java](http://www.baeldung.com/thread-pool-java-and-guava)
- [Introduction to Java 8 Streams](http://www.baeldung.com/java-8-streams-introduction)
- [Guide to the Fork/Join Framework in Java](http://www.baeldung.com/java-fork-join)

37
core-java/pom.xml
View File

@ -162,6 +162,8 @@
<configuration>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*LongRunningUnitTest.java</exclude>
<exclude>**/*ManualTest.java</exclude>
</excludes>
</configuration>
</plugin>
@ -277,6 +279,41 @@
</plugins>
</build>
<profiles>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<!-- persistence -->

0
core-java-8/.gitignore → core-java/src/main/java/com/baeldung/.gitignore vendored
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0
core-java-8/src/main/java/com/baeldung/Adder.java → core-java/src/main/java/com/baeldung/Adder.java
View File

0
core-java-8/src/main/java/com/baeldung/AdderImpl.java → core-java/src/main/java/com/baeldung/AdderImpl.java
View File

0
core-java-8/src/main/java/com/baeldung/Bar.java → core-java/src/main/java/com/baeldung/Bar.java
View File

0
core-java-8/src/main/java/com/baeldung/Baz.java → core-java/src/main/java/com/baeldung/Baz.java
View File

0
core-java-8/src/main/java/com/baeldung/Foo.java → core-java/src/main/java/com/baeldung/Foo.java
View File

0
core-java-8/src/main/java/com/baeldung/FooExtended.java → core-java/src/main/java/com/baeldung/FooExtended.java
View File

0
core-java-8/src/main/java/com/baeldung/UseFoo.java → core-java/src/main/java/com/baeldung/UseFoo.java
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0
core-java-8/src/main/java/com/baeldung/datetime/README.md → core-java/src/main/java/com/baeldung/datetime/README.md
View File

8
core-java-8/src/main/java/com/baeldung/datetime/UseDuration.java → core-java/src/main/java/com/baeldung/datetime/UseDuration.java
View File

@ -5,12 +5,12 @@ import java.time.LocalTime;
import java.time.Period;
public class UseDuration {
public LocalTime modifyDates(LocalTime localTime,Duration duration){
public LocalTime modifyDates(LocalTime localTime, Duration duration) {
return localTime.plus(duration);
}
public Duration getDifferenceBetweenDates(LocalTime localTime1,LocalTime localTime2){
public Duration getDifferenceBetweenDates(LocalTime localTime1, LocalTime localTime2) {
return Duration.between(localTime1, localTime2);
}
}

32
core-java-8/src/main/java/com/baeldung/datetime/UseLocalDate.java → core-java/src/main/java/com/baeldung/datetime/UseLocalDate.java
View File

@ -7,39 +7,39 @@ import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAdjusters;
public class UseLocalDate {
public LocalDate getLocalDateUsingFactoryOfMethod(int year, int month, int dayOfMonth){
public LocalDate getLocalDateUsingFactoryOfMethod(int year, int month, int dayOfMonth) {
return LocalDate.of(year, month, dayOfMonth);
}
public LocalDate getLocalDateUsingParseMethod(String representation){
public LocalDate getLocalDateUsingParseMethod(String representation) {
return LocalDate.parse(representation);
}
public LocalDate getLocalDateFromClock(){
public LocalDate getLocalDateFromClock() {
LocalDate localDate = LocalDate.now();
return localDate;
}
public LocalDate getNextDay(LocalDate localDate){
public LocalDate getNextDay(LocalDate localDate) {
return localDate.plusDays(1);
}
public LocalDate getPreviousDay(LocalDate localDate){
public LocalDate getPreviousDay(LocalDate localDate) {
return localDate.minus(1, ChronoUnit.DAYS);
}
public DayOfWeek getDayOfWeek(LocalDate localDate){
public DayOfWeek getDayOfWeek(LocalDate localDate) {
DayOfWeek day = localDate.getDayOfWeek();
return day;
}
public LocalDate getFirstDayOfMonth(){
public LocalDate getFirstDayOfMonth() {
LocalDate firstDayOfMonth = LocalDate.now().with(TemporalAdjusters.firstDayOfMonth());
return firstDayOfMonth;
}
public LocalDateTime getStartOfDay(LocalDate localDate){
public LocalDateTime getStartOfDay(LocalDate localDate) {
LocalDateTime startofDay = localDate.atStartOfDay();
return startofDay;
}

4
core-java-8/src/main/java/com/baeldung/datetime/UseLocalDateTime.java → core-java/src/main/java/com/baeldung/datetime/UseLocalDateTime.java
View File

@ -3,8 +3,8 @@ package com.baeldung.datetime;
import java.time.LocalDateTime;
public class UseLocalDateTime {
public LocalDateTime getLocalDateTimeUsingParseMethod(String representation){
public LocalDateTime getLocalDateTimeUsingParseMethod(String representation) {
return LocalDateTime.parse(representation);
}

26
core-java-8/src/main/java/com/baeldung/datetime/UseLocalTime.java → core-java/src/main/java/com/baeldung/datetime/UseLocalTime.java
View File

@ -4,32 +4,32 @@ import java.time.LocalTime;
import java.time.temporal.ChronoUnit;
public class UseLocalTime {
public LocalTime getLocalTimeUsingFactoryOfMethod(int hour, int min, int seconds){
public LocalTime getLocalTimeUsingFactoryOfMethod(int hour, int min, int seconds) {
LocalTime localTime = LocalTime.of(hour, min, seconds);
return localTime;
}
public LocalTime getLocalTimeUsingParseMethod(String timeRepresentation){
public LocalTime getLocalTimeUsingParseMethod(String timeRepresentation) {
LocalTime localTime = LocalTime.parse(timeRepresentation);
return localTime;
}
public LocalTime getLocalTimeFromClock(){
public LocalTime getLocalTimeFromClock() {
LocalTime localTime = LocalTime.now();
return localTime;
}
public LocalTime addAnHour(LocalTime localTime){
LocalTime newTime = localTime.plus(1,ChronoUnit.HOURS);
public LocalTime addAnHour(LocalTime localTime) {
LocalTime newTime = localTime.plus(1, ChronoUnit.HOURS);
return newTime;
}
public int getHourFromLocalTime(LocalTime localTime){
public int getHourFromLocalTime(LocalTime localTime) {
return localTime.getHour();
}
public LocalTime getLocalTimeWithMinuteSetToValue(LocalTime localTime, int minute){
public LocalTime getLocalTimeWithMinuteSetToValue(LocalTime localTime, int minute) {
return localTime.withMinute(minute);
}
}

8
core-java-8/src/main/java/com/baeldung/datetime/UsePeriod.java → core-java/src/main/java/com/baeldung/datetime/UsePeriod.java
View File

@ -4,12 +4,12 @@ import java.time.LocalDate;
import java.time.Period;
public class UsePeriod {
public LocalDate modifyDates(LocalDate localDate,Period period){
public LocalDate modifyDates(LocalDate localDate, Period period) {
return localDate.plus(period);
}
public Period getDifferenceBetweenDates(LocalDate localDate1,LocalDate localDate2){
public Period getDifferenceBetweenDates(LocalDate localDate1, LocalDate localDate2) {
return Period.between(localDate1, localDate2);
}
}

8
core-java-8/src/main/java/com/baeldung/datetime/UseToInstant.java → core-java/src/main/java/com/baeldung/datetime/UseToInstant.java
View File

@ -6,13 +6,13 @@ import java.util.Calendar;
import java.util.Date;
public class UseToInstant {
public LocalDateTime convertDateToLocalDate(Date date){
public LocalDateTime convertDateToLocalDate(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault());
return localDateTime;
}
public LocalDateTime convertDateToLocalDate(Calendar calendar){
public LocalDateTime convertDateToLocalDate(Calendar calendar) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(calendar.toInstant(), ZoneId.systemDefault());
return localDateTime;
}

4
core-java-8/src/main/java/com/baeldung/datetime/UseZonedDateTime.java → core-java/src/main/java/com/baeldung/datetime/UseZonedDateTime.java
View File

@ -5,8 +5,8 @@ import java.time.ZoneId;
import java.time.ZonedDateTime;
public class UseZonedDateTime {
public ZonedDateTime getZonedDateTime(LocalDateTime localDateTime,ZoneId zoneId){
public ZonedDateTime getZonedDateTime(LocalDateTime localDateTime, ZoneId zoneId) {
ZonedDateTime zonedDateTime = ZonedDateTime.of(localDateTime, zoneId);
return zonedDateTime;
}

0
core-java-8/src/main/java/com/baeldung/doublecolon/Computer.java → core-java/src/main/java/com/baeldung/doublecolon/Computer.java
View File

0
core-java-8/src/main/java/com/baeldung/doublecolon/ComputerUtils.java → core-java/src/main/java/com/baeldung/doublecolon/ComputerUtils.java
View File

0
core-java-8/src/main/java/com/baeldung/doublecolon/MacbookPro.java → core-java/src/main/java/com/baeldung/doublecolon/MacbookPro.java
View File

0
core-java-8/src/main/java/com/baeldung/doublecolon/function/ComputerPredicate.java → core-java/src/main/java/com/baeldung/doublecolon/function/ComputerPredicate.java
View File

0
core-java-8/src/main/java/com/baeldung/doublecolon/function/TriFunction.java → core-java/src/main/java/com/baeldung/doublecolon/function/TriFunction.java
View File

42
core-java/src/main/java/com/baeldung/enums/Pizza.java
View File

@ -1,11 +1,5 @@
package com.baeldung.enums;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.collections15.Predicate;
import java.io.IOException;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.List;
@ -13,13 +7,11 @@ import java.util.stream.Collectors;
public class Pizza {
private static EnumSet<PizzaStatus> undeliveredPizzaStatuses =
EnumSet.of(PizzaStatus.ORDERED, PizzaStatus.READY);
private static EnumSet<PizzaStatusEnum> deliveredPizzaStatuses = EnumSet.of(PizzaStatusEnum.DELIVERED);
private PizzaStatus status;
private PizzaStatusEnum status;
@JsonFormat(shape = JsonFormat.Shape.OBJECT)
public enum PizzaStatus {
public enum PizzaStatusEnum {
ORDERED(5) {
@Override
public boolean isOrdered() {
@ -53,21 +45,20 @@ public class Pizza {
return false;
}
@JsonProperty("timeToDelivery")
public int getTimeToDelivery() {
return timeToDelivery;
}
PizzaStatus(int timeToDelivery) {
PizzaStatusEnum(int timeToDelivery) {
this.timeToDelivery = timeToDelivery;
}
}
public PizzaStatus getStatus() {
public PizzaStatusEnum getStatus() {
return status;
}
public void setStatus(PizzaStatus status) {
public void setStatus(PizzaStatusEnum status) {
this.status = status;
}
@ -80,31 +71,18 @@ public class Pizza {
}
public static List<Pizza> getAllUndeliveredPizzas(List<Pizza> input) {
return input.stream().filter(
(s) -> undeliveredPizzaStatuses.contains(s.getStatus()))
.collect(Collectors.toList());
return input.stream().filter((s) -> !deliveredPizzaStatuses.contains(s.getStatus())).collect(Collectors.toList());
}
public static EnumMap<PizzaStatus, List<Pizza>>
groupPizzaByStatus(List<Pizza> pzList) {
return pzList.stream().collect(
Collectors.groupingBy(Pizza::getStatus,
() -> new EnumMap<>(PizzaStatus.class), Collectors.toList()));
public static EnumMap<PizzaStatusEnum, List<Pizza>> groupPizzaByStatus(List<Pizza> pzList) {
return pzList.stream().collect(Collectors.groupingBy(Pizza::getStatus, () -> new EnumMap<>(PizzaStatusEnum.class), Collectors.toList()));
}
public void deliver() {
if (isDeliverable()) {
PizzaDeliverySystemConfiguration.getInstance().getDeliveryStrategy().deliver(this);
this.setStatus(PizzaStatus.DELIVERED);
this.setStatus(PizzaStatusEnum.DELIVERED);
}
}
public static String getJsonString(Pizza pz) throws IOException {
ObjectMapper mapper = new ObjectMapper();
return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(pz);
}
private static Predicate<Pizza> thatAreNotDelivered() {
return entry -> undeliveredPizzaStatuses.contains(entry.getStatus());
}
}

0
core-java-8/src/main/java/com/baeldung/enums/README.md → core-java/src/main/java/com/baeldung/enums/README.md
View File

3
core-java-8/src/main/java/com/baeldung/forkjoin/CustomRecursiveAction.java → core-java/src/main/java/com/baeldung/forkjoin/CustomRecursiveAction.java
View File

@ -30,8 +30,7 @@ public class CustomRecursiveAction extends RecursiveAction {
private Collection<CustomRecursiveAction> createSubtasks() {
List<CustomRecursiveAction> subtasks =
new ArrayList<>();
List<CustomRecursiveAction> subtasks = new ArrayList<>();
String partOne = workLoad.substring(0, workLoad.length() / 2);
String partTwo = workLoad.substring(workLoad.length() / 2, workLoad.length());

17
core-java-8/src/main/java/com/baeldung/forkjoin/CustomRecursiveTask.java → core-java/src/main/java/com/baeldung/forkjoin/CustomRecursiveTask.java
View File

@ -1,6 +1,5 @@
package com.baeldung.forkjoin;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@ -23,10 +22,7 @@ public class CustomRecursiveTask extends RecursiveTask<Integer> {
if (arr.length > THRESHOLD) {
return ForkJoinTask.invokeAll(createSubtasks())
.stream()
.mapToInt(ForkJoinTask::join)
.sum();
return ForkJoinTask.invokeAll(createSubtasks()).stream().mapToInt(ForkJoinTask::join).sum();
} else {
return processing(arr);
@ -35,17 +31,12 @@ public class CustomRecursiveTask extends RecursiveTask<Integer> {
private Collection<CustomRecursiveTask> createSubtasks() {
List<CustomRecursiveTask> dividedTasks = new ArrayList<>();
dividedTasks.add(new CustomRecursiveTask(
Arrays.copyOfRange(arr, 0, arr.length / 2)));
dividedTasks.add(new CustomRecursiveTask(
Arrays.copyOfRange(arr, arr.length / 2, arr.length)));
dividedTasks.add(new CustomRecursiveTask(Arrays.copyOfRange(arr, 0, arr.length / 2)));
dividedTasks.add(new CustomRecursiveTask(Arrays.copyOfRange(arr, arr.length / 2, arr.length)));
return dividedTasks;
}
private Integer processing(int[] arr) {
return Arrays.stream(arr)
.filter(a -> a > 10 && a < 27)
.map(a -> a * 10)
.sum();
return Arrays.stream(arr).filter(a -> a > 10 && a < 27).map(a -> a * 10).sum();
}
}

1
core-java-8/src/main/java/com/baeldung/forkjoin/util/PoolUtil.java → core-java/src/main/java/com/baeldung/forkjoin/util/PoolUtil.java
View File

@ -1,6 +1,5 @@
package com.baeldung.forkjoin.util;
import java.util.concurrent.ForkJoinPool;
public class PoolUtil {

56
core-java/src/main/java/com/baeldung/java/networking/cookies/PersistentCookieStore.java Normal file
View File

@ -0,0 +1,56 @@
package com.baeldung.java.networking.cookies;
import java.net.*;
import java.util.List;
public class PersistentCookieStore implements CookieStore, Runnable {
CookieStore store;
public PersistentCookieStore() {
store = new CookieManager().getCookieStore();
// deserialize cookies into store
Runtime.getRuntime().addShutdownHook(new Thread(this));
}
@Override
public void run() {
// serialize cookies to persistent storage
}
@Override
public void add(URI uri, HttpCookie cookie) {
store.add(uri, cookie);
}
@Override
public List<HttpCookie> get(URI uri) {
// TODO Auto-generated method stub
return null;
}
@Override
public List<HttpCookie> getCookies() {
// TODO Auto-generated method stub
return null;
}
@Override
public List<URI> getURIs() {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean remove(URI uri, HttpCookie cookie) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean removeAll() {
// TODO Auto-generated method stub
return false;
}
}

26
core-java/src/main/java/com/baeldung/java/networking/cookies/ProxyAcceptCookiePolicy.java Normal file
View File

@ -0,0 +1,26 @@
package com.baeldung.java.networking.cookies;
import java.net.*;
public class ProxyAcceptCookiePolicy implements CookiePolicy {
String acceptedProxy;
public ProxyAcceptCookiePolicy(String acceptedProxy) {
this.acceptedProxy = acceptedProxy;
}
public boolean shouldAccept(URI uri, HttpCookie cookie) {
String host;
try {
host = InetAddress.getByName(uri.getHost()).getCanonicalHostName();
} catch (UnknownHostException e) {
host = uri.getHost();
}
if (!HttpCookie.domainMatches(acceptedProxy, host)) {
return false;
}
return CookiePolicy.ACCEPT_ORIGINAL_SERVER.shouldAccept(uri, cookie);
}
}

42
core-java/src/main/java/com/baeldung/java/networking/udp/EchoClient.java Normal file
View File

@ -0,0 +1,42 @@
package com.baeldung.java.networking.udp;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
public class EchoClient {
private DatagramSocket socket;
private InetAddress address;
private byte[] buf;
public EchoClient() {
try {
socket = new DatagramSocket();
address = InetAddress.getByName("localhost");
} catch (IOException e) {
e.printStackTrace();
}
}
public String sendEcho(String msg) {
DatagramPacket packet = null;
try {
buf=msg.getBytes();
packet = new DatagramPacket(buf, buf.length, address, 4445);
socket.send(packet);
packet = new DatagramPacket(buf, buf.length);
socket.receive(packet);
} catch (IOException e) {
e.printStackTrace();
}
String received = new String(packet.getData(), 0, packet.getLength());
return received;
}
public void close() {
socket.close();
}
}

42
core-java/src/main/java/com/baeldung/java/networking/udp/EchoServer.java Normal file
View File

@ -0,0 +1,42 @@
package com.baeldung.java.networking.udp;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
public class EchoServer extends Thread {
protected DatagramSocket socket = null;
protected boolean running;
protected byte[] buf = new byte[256];
public EchoServer() throws IOException {
socket = new DatagramSocket(4445);
}
public void run() {
running = true;
while (running) {
try {
DatagramPacket packet = new DatagramPacket(buf, buf.length);
socket.receive(packet);
InetAddress address = packet.getAddress();
int port = packet.getPort();
packet = new DatagramPacket(buf, buf.length, address, port);
String received = new String(packet.getData(), 0, packet.getLength());
if (received.equals("end")) {
running = false;
continue;
}
socket.send(packet);
} catch (IOException e) {
e.printStackTrace();
running = false;
}
}
socket.close();
}
}

19
core-java/src/main/java/com/baeldung/java/nio/selector/EchoServer.java
View File

@ -1,21 +1,21 @@
package com.baeldung.java.nio.selector;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.nio.channels.Selector;
import java.nio.channels.SelectionKey;
import java.nio.ByteBuffer;
import java.io.IOException;
import java.util.Set;
import java.util.Iterator;
import java.net.InetSocketAddress;
import java.io.File;
public class EchoServer {
public static void main(String[] args)
throws IOException {
throws IOException {
Selector selector = Selector.open();
ServerSocketChannel serverSocket = ServerSocketChannel.open();
serverSocket.bind(new InetSocketAddress("localhost", 5454));
@ -49,6 +49,7 @@ public class EchoServer {
}
}
public static Process start() throws IOException, InterruptedException {
String javaHome = System.getProperty("java.home");
String javaBin = javaHome + File.separator + "bin" + File.separator + "java";
@ -59,4 +60,4 @@ public class EchoServer {
return builder.start();
}
}
}

0
core-java-8/src/main/java/com/baeldung/java_8_features/Address.java → core-java/src/main/java/com/baeldung/java_8_features/Address.java
View File

0
core-java-8/src/main/java/com/baeldung/java_8_features/CustomException.java → core-java/src/main/java/com/baeldung/java_8_features/CustomException.java
View File

0
core-java-8/src/main/java/com/baeldung/java_8_features/Detail.java → core-java/src/main/java/com/baeldung/java_8_features/Detail.java
View File

0
core-java-8/src/main/java/com/baeldung/java_8_features/OptionalAddress.java → core-java/src/main/java/com/baeldung/java_8_features/OptionalAddress.java
View File

0
core-java-8/src/main/java/com/baeldung/java_8_features/OptionalUser.java → core-java/src/main/java/com/baeldung/java_8_features/OptionalUser.java
View File

0
core-java-8/src/main/java/com/baeldung/java_8_features/User.java → core-java/src/main/java/com/baeldung/java_8_features/User.java
View File

2
core-java-8/src/main/java/com/baeldung/java_8_features/Vehicle.java → core-java/src/main/java/com/baeldung/java_8_features/Vehicle.java
View File

@ -9,7 +9,7 @@ public interface Vehicle {
}
default long[] startPosition() {
return new long[]{23, 15};
return new long[] { 23, 15 };
}
default String getOverview() {

4
core-java-8/src/main/java/com/baeldung/java_8_features/VehicleImpl.java → core-java/src/main/java/com/baeldung/java_8_features/VehicleImpl.java
View File

@ -1,9 +1,9 @@
package com.baeldung.java_8_features;
public class VehicleImpl implements Vehicle {
public class VehicleImpl implements Vehicle {
@Override
public void moveTo(long altitude, long longitude) {
//do nothing
// do nothing
}
}

1
core-java/src/main/java/com/baeldung/printscreen/Screenshot.java
View File

@ -14,7 +14,6 @@ public class Screenshot {
}
public void getScreenshot(int timeToWait) throws Exception {
Thread.sleep(timeToWait);
Rectangle rectangle = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
Robot robot = new Robot();
BufferedImage img = robot.createScreenCapture(rectangle);

41
core-java/src/main/java/com/baeldung/socket/EchoClient.java Normal file
View File

@ -0,0 +1,41 @@
package com.baeldung.socket;
import java.io.*;
import java.net.*;
public class EchoClient {
private Socket clientSocket;
private PrintWriter out;
private BufferedReader in;
public void startConnection(String ip, int port) {
try {
clientSocket = new Socket(ip, port);
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
} catch (IOException e) {
System.out.print(e);
}
}
public String sendMessage(String msg) {
try {
out.println(msg);
return in.readLine();
} catch (Exception e) {
return null;
}
}
public void stopConnection() {
try {
in.close();
out.close();
clientSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

70
core-java/src/main/java/com/baeldung/socket/EchoMultiServer.java Normal file
View File

@ -0,0 +1,70 @@
package com.baeldung.socket;
import java.net.*;
import java.io.*;
public class EchoMultiServer {
private ServerSocket serverSocket;
public void start(int port) {
try {
serverSocket = new ServerSocket(port);
while (true)
new EchoClientHandler(serverSocket.accept()).run();
} catch (IOException e) {
e.printStackTrace();
} finally {
stop();
}
}
public void stop() {
try {
serverSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private static class EchoClientHandler extends Thread {
private Socket clientSocket;
private PrintWriter out;
private BufferedReader in;
public EchoClientHandler(Socket socket) {
this.clientSocket = socket;
}
public void run() {
try {
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
if (".".equals(inputLine)) {
out.println("bye");
break;
}
out.println(inputLine);
}
in.close();
out.close();
clientSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
EchoMultiServer server = new EchoMultiServer();
server.start(5555);
}
}

49
core-java/src/main/java/com/baeldung/socket/EchoServer.java Normal file
View File

@ -0,0 +1,49 @@
package com.baeldung.socket;
import java.net.*;
import java.io.*;
public class EchoServer {
private ServerSocket serverSocket;
private Socket clientSocket;
private PrintWriter out;
private BufferedReader in;
public void start(int port) {
try {
serverSocket = new ServerSocket(port);
clientSocket = serverSocket.accept();
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
if (".".equals(inputLine)) {
out.println("good bye");
break;
}
out.println(inputLine);
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void stop() {
try {
in.close();
out.close();
clientSocket.close();
serverSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
EchoServer server = new EchoServer();
server.start(4444);
}
}

44
core-java/src/main/java/com/baeldung/socket/GreetClient.java Normal file
View File

@ -0,0 +1,44 @@
package com.baeldung.socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
public class GreetClient {
private Socket clientSocket;
private PrintWriter out;
private BufferedReader in;
public void startConnection(String ip, int port) {
try {
clientSocket = new Socket(ip, port);
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
} catch (IOException e) {
}
}
public String sendMessage(String msg) {
try {
out.println(msg);
return in.readLine();
} catch (Exception e) {
return null;
}
}
public void stopConnection() {
try {
in.close();
out.close();
clientSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

46
core-java/src/main/java/com/baeldung/socket/GreetServer.java Normal file
View File

@ -0,0 +1,46 @@
package com.baeldung.socket;
import java.net.*;
import java.io.*;
public class GreetServer {
private ServerSocket serverSocket;
private Socket clientSocket;
private PrintWriter out;
private BufferedReader in;
public void start(int port) {
try {
serverSocket = new ServerSocket(port);
clientSocket = serverSocket.accept();
out = new PrintWriter(clientSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String greeting = in.readLine();
if ("hello server".equals(greeting))
out.println("hello client");
else
out.println("unrecognised greeting");
} catch (IOException e) {
e.printStackTrace();
}
}
public void stop() {
try {
in.close();
out.close();
clientSocket.close();
serverSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
GreetServer server = new GreetServer();
server.start(6666);
}
}

1
core-java-8/src/main/java/com/baeldung/streamApi/Product.java → core-java/src/main/java/com/baeldung/streamApi/Product.java
View File

@ -44,7 +44,6 @@ public class Product {
this.name = name;
}
public static Stream<String> streamOf(List<String> list) {
return (list == null || list.isEmpty()) ? Stream.empty() : list.stream();
}

4
core-java-8/src/main/java/com/baeldung/threadpool/CountingTask.java → core-java/src/main/java/com/baeldung/threadpool/CountingTask.java
View File

@ -14,9 +14,7 @@ public class CountingTask extends RecursiveTask<Integer> {
@Override
protected Integer compute() {
return node.value + node.children.stream()
.map(childNode -> new CountingTask(childNode).fork())
.collect(Collectors.summingInt(ForkJoinTask::join));
return node.value + node.children.stream().map(childNode -> new CountingTask(childNode).fork()).collect(Collectors.summingInt(ForkJoinTask::join));
}
}

0
core-java-8/src/main/java/com/baeldung/threadpool/ExitingExecutorServiceExample.java → core-java/src/main/java/com/baeldung/threadpool/ExitingExecutorServiceExample.java
View File

0
core-java-8/src/main/java/com/baeldung/threadpool/TreeNode.java → core-java/src/main/java/com/baeldung/threadpool/TreeNode.java
View File

0
core-java-8/src/main/java/com/baeldung/unzip/UnzipFile.java → core-java/src/main/java/com/baeldung/unzip/UnzipFile.java
View File

0
core-java-8/src/main/java/com/baeldung/zip/ZipDirectory.java → core-java/src/main/java/com/baeldung/zip/ZipDirectory.java
View File

0
core-java-8/src/main/java/com/baeldung/zip/ZipFile.java → core-java/src/main/java/com/baeldung/zip/ZipFile.java
View File

0
core-java-8/src/main/java/com/baeldung/zip/ZipMultipleFiles.java → core-java/src/main/java/com/baeldung/zip/ZipMultipleFiles.java
View File

4
core-java/src/main/java/org/baeldung/equalshashcode/entities/ComplexClass.java
View File

@ -1,7 +1,5 @@
package org.baeldung.equalshashcode.entities;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
@ -10,7 +8,7 @@ public class ComplexClass {
private List<?> genericList;
private Set<Integer> integerSet;
public ComplexClass(ArrayList<?> genericArrayList, HashSet<Integer> integerHashSet) {
public ComplexClass(List<?> genericArrayList, Set<Integer> integerHashSet) {
super();
this.genericList = genericArrayList;
this.integerSet = integerHashSet;

6
core-java/src/main/java/org/baeldung/executable/ExecutableMavenJar.java
View File

@ -4,8 +4,8 @@ import javax.swing.JOptionPane;
public class ExecutableMavenJar {
public static void main(String[] args) {
JOptionPane.showMessageDialog(null, "It worked!", "Executable Jar with Maven", 1);
}
public static void main(String[] args) {
JOptionPane.showMessageDialog(null, "It worked!", "Executable Jar with Maven", 1);
}
}

0
core-java-8/src/main/resources/dirCompressed.zip → core-java/src/main/resources/dirCompressed.zip
View File

0
core-java-8/src/main/resources/fileTest.txt → core-java/src/main/resources/fileTest.txt
View File

0
core-java-8/src/main/resources/multiCompressed.zip → core-java/src/main/resources/multiCompressed.zip
View File

2
core-java/src/main/resources/targetFile.tmp Normal file
View File

@ -0,0 +1,2 @@
line 1
a second line

12
core-java-8/src/test/java/com/baeldung/CharToStringTest.java → core-java/src/test/java/com/baeldung/CharToStringUnitTest.java
View File

@ -4,10 +4,10 @@ import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class CharToStringTest {
public class CharToStringUnitTest {
@Test
public void givenChar_whenCallingStringValueOf_shouldConvertToString(){
public void givenChar_whenCallingStringValueOf_shouldConvertToString() {
final char givenChar = 'x';
final String result = String.valueOf(givenChar);
@ -16,7 +16,7 @@ public class CharToStringTest {
}
@Test
public void givenChar_whenCallingToStringOnCharacter_shouldConvertToString(){
public void givenChar_whenCallingToStringOnCharacter_shouldConvertToString() {
final char givenChar = 'x';
final String result = Character.toString(givenChar);
@ -25,7 +25,7 @@ public class CharToStringTest {
}
@Test
public void givenChar_whenCallingCharacterConstructor_shouldConvertToString3(){
public void givenChar_whenCallingCharacterConstructor_shouldConvertToString3() {
final char givenChar = 'x';
final String result = new Character(givenChar).toString();
@ -34,7 +34,7 @@ public class CharToStringTest {
}
@Test
public void givenChar_whenConcatenated_shouldConvertToString4(){
public void givenChar_whenConcatenated_shouldConvertToString4() {
final char givenChar = 'x';
final String result = givenChar + "";
@ -43,7 +43,7 @@ public class CharToStringTest {
}
@Test
public void givenChar_whenFormated_shouldConvertToString5(){
public void givenChar_whenFormated_shouldConvertToString5() {
final char givenChar = 'x';
final String result = String.format("%c", givenChar);

4
core-java-8/src/test/java/com/baeldung/RandomListElementTest.java → core-java/src/test/java/com/baeldung/RandomListElementUnitTest.java
View File

@ -6,7 +6,7 @@ import org.junit.Test;
import java.util.*;
import java.util.concurrent.ThreadLocalRandom;
public class RandomListElementTest {
public class RandomListElementUnitTest {
@Test
public void givenList_whenRandomIndexChosen_shouldReturnARandomElementUsingRandom() {
@ -20,7 +20,7 @@ public class RandomListElementTest {
public void givenList_whenRandomIndexChosen_shouldReturnARandomElementUsingMathRandom() {
List<Integer> givenList = Lists.newArrayList(1, 2, 3);
givenList.get((int)(Math.random() * givenList.size()));
givenList.get((int) (Math.random() * givenList.size()));
}
@Test

10
core-java-8/src/test/java/com/baeldung/StringToIntOrIntegerTest.java → core-java/src/test/java/com/baeldung/StringToIntOrIntegerUnitTest.java
View File

@ -1,11 +1,12 @@
package com.baeldung;
import com.google.common.primitives.Ints;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class StringToIntOrIntegerTest {
import org.junit.Test;
import com.google.common.primitives.Ints;
public class StringToIntOrIntegerUnitTest {
@Test
public void givenString_whenParsingInt_shouldConvertToInt() {
@ -16,7 +17,6 @@ public class StringToIntOrIntegerTest {
assertThat(result).isEqualTo(42);
}
@Test
public void givenString_whenCallingIntegerValueOf_shouldConvertToInt() {
String givenString = "42";

141
core-java-8/src/test/java/com/baeldung/collectors/Java8CollectorsTest.java → core-java/src/test/java/com/baeldung/collectors/Java8CollectorsUnitTest.java
View File

@ -36,198 +36,143 @@ import static java.util.stream.Collectors.toSet;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
public class Java8CollectorsTest {
public class Java8CollectorsUnitTest {
private final List<String> givenList = Arrays.asList("a", "bb", "ccc", "dd");
@Test
public void whenCollectingToList_shouldCollectToList() throws Exception {
final List<String> result = givenList.stream()
.collect(toList());
final List<String> result = givenList.stream().collect(toList());
assertThat(result)
.containsAll(givenList);
assertThat(result).containsAll(givenList);
}
@Test
public void whenCollectingToList_shouldCollectToSet() throws Exception {
final Set<String> result = givenList.stream()
.collect(toSet());
final Set<String> result = givenList.stream().collect(toSet());
assertThat(result)
.containsAll(givenList);
assertThat(result).containsAll(givenList);
}
@Test
public void whenCollectingToCollection_shouldCollectToCollection() throws Exception {
final List<String> result = givenList.stream()
.collect(toCollection(LinkedList::new));
final List<String> result = givenList.stream().collect(toCollection(LinkedList::new));
assertThat(result)
.containsAll(givenList)
.isInstanceOf(LinkedList.class);
assertThat(result).containsAll(givenList).isInstanceOf(LinkedList.class);
}
@Test
public void whenCollectingToImmutableCollection_shouldThrowException() throws Exception {
assertThatThrownBy(() -> {
givenList.stream()
.collect(toCollection(ImmutableList::of));
givenList.stream().collect(toCollection(ImmutableList::of));
}).isInstanceOf(UnsupportedOperationException.class);
}
@Test
public void whenCollectingToMap_shouldCollectToMap() throws Exception {
final Map<String, Integer> result = givenList.stream()
.collect(toMap(Function.identity(), String::length));
final Map<String, Integer> result = givenList.stream().collect(toMap(Function.identity(), String::length));
assertThat(result)
.containsEntry("a", 1)
.containsEntry("bb", 2)
.containsEntry("ccc", 3)
.containsEntry("dd", 2);
assertThat(result).containsEntry("a", 1).containsEntry("bb", 2).containsEntry("ccc", 3).containsEntry("dd", 2);
}
@Test
public void whenCollectingToMap_shouldCollectToMapMerging() throws Exception {
final Map<String, Integer> result = givenList.stream()
.collect(toMap(Function.identity(), String::length, (i1, i2) -> i1));
final Map<String, Integer> result = givenList.stream().collect(toMap(Function.identity(), String::length, (i1, i2) -> i1));
assertThat(result)
.containsEntry("a", 1)
.containsEntry("bb", 2)
.containsEntry("ccc", 3)
.containsEntry("dd", 2);
assertThat(result).containsEntry("a", 1).containsEntry("bb", 2).containsEntry("ccc", 3).containsEntry("dd", 2);
}
@Test
public void whenCollectingAndThen_shouldCollect() throws Exception {
final List<String> result = givenList.stream()
.collect(collectingAndThen(toList(), ImmutableList::copyOf));
final List<String> result = givenList.stream().collect(collectingAndThen(toList(), ImmutableList::copyOf));
assertThat(result)
.containsAll(givenList)
.isInstanceOf(ImmutableList.class);
assertThat(result).containsAll(givenList).isInstanceOf(ImmutableList.class);
}
@Test
public void whenJoining_shouldJoin() throws Exception {
final String result = givenList.stream()
.collect(joining());
final String result = givenList.stream().collect(joining());
assertThat(result)
.isEqualTo("abbcccdd");
assertThat(result).isEqualTo("abbcccdd");
}
@Test
public void whenJoiningWithSeparator_shouldJoinWithSeparator() throws Exception {
final String result = givenList.stream()
.collect(joining(" "));
final String result = givenList.stream().collect(joining(" "));
assertThat(result)
.isEqualTo("a bb ccc dd");
assertThat(result).isEqualTo("a bb ccc dd");
}
@Test
public void whenJoiningWithSeparatorAndPrefixAndPostfix_shouldJoinWithSeparatorPrePost() throws Exception {
final String result = givenList.stream()
.collect(joining(" ", "PRE-", "-POST"));
final String result = givenList.stream().collect(joining(" ", "PRE-", "-POST"));
assertThat(result)
.isEqualTo("PRE-a bb ccc dd-POST");
assertThat(result).isEqualTo("PRE-a bb ccc dd-POST");
}
@Test
public void whenPartitioningBy_shouldPartition() throws Exception {
final Map<Boolean, List<String>> result = givenList.stream()
.collect(partitioningBy(s -> s.length() > 2));
final Map<Boolean, List<String>> result = givenList.stream().collect(partitioningBy(s -> s.length() > 2));
assertThat(result)
.containsKeys(true, false)
.satisfies(booleanListMap -> {
assertThat(booleanListMap.get(true))
.contains("ccc");
assertThat(result).containsKeys(true, false).satisfies(booleanListMap -> {
assertThat(booleanListMap.get(true)).contains("ccc");
assertThat(booleanListMap.get(false))
.contains("a", "bb", "dd");
});
assertThat(booleanListMap.get(false)).contains("a", "bb", "dd");
});
}
@Test
public void whenCounting_shouldCount() throws Exception {
final Long result = givenList.stream()
.collect(counting());
final Long result = givenList.stream().collect(counting());
assertThat(result)
.isEqualTo(4);
assertThat(result).isEqualTo(4);
}
@Test
public void whenSummarizing_shouldSummarize() throws Exception {
final DoubleSummaryStatistics result = givenList.stream()
.collect(summarizingDouble(String::length));
final DoubleSummaryStatistics result = givenList.stream().collect(summarizingDouble(String::length));
assertThat(result.getAverage())
.isEqualTo(2);
assertThat(result.getCount())
.isEqualTo(4);
assertThat(result.getMax())
.isEqualTo(3);
assertThat(result.getMin())
.isEqualTo(1);
assertThat(result.getSum())
.isEqualTo(8);
assertThat(result.getAverage()).isEqualTo(2);
assertThat(result.getCount()).isEqualTo(4);
assertThat(result.getMax()).isEqualTo(3);
assertThat(result.getMin()).isEqualTo(1);
assertThat(result.getSum()).isEqualTo(8);
}
@Test
public void whenAveraging_shouldAverage() throws Exception {
final Double result = givenList.stream()
.collect(averagingDouble(String::length));
final Double result = givenList.stream().collect(averagingDouble(String::length));
assertThat(result)
.isEqualTo(2);
assertThat(result).isEqualTo(2);
}
@Test
public void whenSumming_shouldSum() throws Exception {
final Double result = givenList.stream()
.collect(summingDouble(String::length));
final Double result = givenList.stream().collect(summingDouble(String::length));
assertThat(result)
.isEqualTo(8);
assertThat(result).isEqualTo(8);
}
@Test
public void whenMaxingBy_shouldMaxBy() throws Exception {
final Optional<String> result = givenList.stream()
.collect(maxBy(Comparator.naturalOrder()));
final Optional<String> result = givenList.stream().collect(maxBy(Comparator.naturalOrder()));
assertThat(result)
.isPresent()
.hasValue("dd");
assertThat(result).isPresent().hasValue("dd");
}
@Test
public void whenGroupingBy_shouldGroupBy() throws Exception {
final Map<Integer, Set<String>> result = givenList.stream()
.collect(groupingBy(String::length, toSet()));
final Map<Integer, Set<String>> result = givenList.stream().collect(groupingBy(String::length, toSet()));
assertThat(result)
.containsEntry(1, newHashSet("a"))
.containsEntry(2, newHashSet("bb", "dd"))
.containsEntry(3, newHashSet("ccc"));
assertThat(result).containsEntry(1, newHashSet("a")).containsEntry(2, newHashSet("bb", "dd")).containsEntry(3, newHashSet("ccc"));
}
@Test
public void whenCreatingCustomCollector_shouldCollect() throws Exception {
final ImmutableSet<String> result = givenList.stream()
.collect(toImmutableSet());
final ImmutableSet<String> result = givenList.stream().collect(toImmutableSet());
assertThat(result)
.isInstanceOf(ImmutableSet.class)
.contains("a", "bb", "ccc", "dd");
assertThat(result).isInstanceOf(ImmutableSet.class).contains("a", "bb", "ccc", "dd");
}

59
core-java-8/src/test/java/com/baeldung/completablefuture/CompletableFutureTest.java → core-java/src/test/java/com/baeldung/completablefuture/CompletableFutureUnitTest.java
View File

@ -1,24 +1,26 @@
package com.baeldung.completablefuture;
import java.util.concurrent.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class CompletableFutureTest {
public class CompletableFutureUnitTest {
@Test
public void whenRunningCompletableFutureAsynchronously_thenGetMethodWaitsForResult() throws InterruptedException, ExecutionException {
Future<String> completableFuture = calculateAsync();
String result = completableFuture.get();
assertEquals("Hello", result);
}
public Future<String> calculateAsync() throws InterruptedException {
@ -35,15 +37,12 @@ public class CompletableFutureTest {
@Test
public void whenRunningCompletableFutureWithResult_thenGetMethodReturnsImmediately() throws InterruptedException, ExecutionException {
Future<String> completableFuture = CompletableFuture.completedFuture("Hello");
String result = completableFuture.get();
assertEquals("Hello", result);
}
public Future<String> calculateAsyncWithCancellation() throws InterruptedException {
CompletableFuture<String> completableFuture = new CompletableFuture<>();
@ -56,90 +55,67 @@ public class CompletableFutureTest {
return completableFuture;
}
@Test(expected = CancellationException.class)
public void whenCancelingTheFuture_thenThrowsCancellationException() throws ExecutionException, InterruptedException {
Future<String> future = calculateAsyncWithCancellation();
future.get();
}
@Test
public void whenCreatingCompletableFutureWithSupplyAsync_thenFutureReturnsValue() throws ExecutionException, InterruptedException {
CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");
assertEquals("Hello", future.get());
}
@Test
public void whenAddingThenAcceptToFuture_thenFunctionExecutesAfterComputationIsFinished() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");
CompletableFuture<Void> future = completableFuture.thenAccept(s -> System.out.println("Computation returned: " + s));
future.get();
}
@Test
public void whenAddingThenRunToFuture_thenFunctionExecutesAfterComputationIsFinished() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");
CompletableFuture<Void> future = completableFuture.thenRun(() -> System.out.println("Computation finished."));
future.get();
}
@Test
public void whenAddingThenApplyToFuture_thenFunctionExecutesAfterComputationIsFinished() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");
CompletableFuture<String> future = completableFuture.thenApply(s -> s + " World");
assertEquals("Hello World", future.get());
}
@Test
public void whenUsingThenCompose_thenFuturesExecuteSequentially() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello")
.thenCompose(s -> CompletableFuture.supplyAsync(() -> s + " World"));
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello").thenCompose(s -> CompletableFuture.supplyAsync(() -> s + " World"));
assertEquals("Hello World", completableFuture.get());
}
@Test
public void whenUsingThenCombine_thenWaitForExecutionOfBothFutures() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello")
.thenCombine(CompletableFuture.supplyAsync(() -> " World"),
(s1, s2) -> s1 + s2);
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello").thenCombine(CompletableFuture.supplyAsync(() -> " World"), (s1, s2) -> s1 + s2);
assertEquals("Hello World", completableFuture.get());
}
@Test
public void whenUsingThenAcceptBoth_thenWaitForExecutionOfBothFutures() throws ExecutionException, InterruptedException {
CompletableFuture.supplyAsync(() -> "Hello")
.thenAcceptBoth(CompletableFuture.supplyAsync(() -> " World"),
(s1, s2) -> System.out.println(s1 + s2));
CompletableFuture.supplyAsync(() -> "Hello").thenAcceptBoth(CompletableFuture.supplyAsync(() -> " World"), (s1, s2) -> System.out.println(s1 + s2));
}
@Test
public void whenFutureCombinedWithAllOfCompletes_thenAllFuturesAreDone() throws ExecutionException, InterruptedException {
CompletableFuture<String> future1 = CompletableFuture.supplyAsync(() -> "Hello");
CompletableFuture<String> future2 = CompletableFuture.supplyAsync(() -> "Beautiful");
CompletableFuture<String> future3 = CompletableFuture.supplyAsync(() -> "World");
@ -154,17 +130,13 @@ public class CompletableFutureTest {
assertTrue(future2.isDone());
assertTrue(future3.isDone());
String combined = Stream.of(future1, future2, future3)
.map(CompletableFuture::join)
.collect(Collectors.joining(" "));
String combined = Stream.of(future1, future2, future3).map(CompletableFuture::join).collect(Collectors.joining(" "));
assertEquals("Hello Beautiful World", combined);
}
@Test
public void whenFutureThrows_thenHandleMethodReceivesException() throws ExecutionException, InterruptedException {
String name = null;
// ...
@ -177,12 +149,10 @@ public class CompletableFutureTest {
}).handle((s, t) -> s != null ? s : "Hello, Stranger!");
assertEquals("Hello, Stranger!", completableFuture.get());
}
@Test(expected = ExecutionException.class)
public void whenCompletingFutureExceptionally_thenGetMethodThrows() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = new CompletableFuture<>();
// ...
@ -192,18 +162,15 @@ public class CompletableFutureTest {
// ...
completableFuture.get();
}
@Test
public void whenAddingThenApplyAsyncToFuture_thenFunctionExecutesAfterComputationIsFinished() throws ExecutionException, InterruptedException {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");
CompletableFuture<String> future = completableFuture.thenApplyAsync(s -> s + " World");
assertEquals("Hello World", future.get());
}
}

0
core-java-8/src/test/java/com/baeldung/dateapi/ConversionExample.java → core-java/src/test/java/com/baeldung/dateapi/ConversionExample.java
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