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Merge branch 'master' of https://github.com/aurasphere/tutorials

This commit is contained in:
Donato Rimenti 2020-07-12 11:40:56 +02:00
parent c1740e57ec b7a41880e6
commit 5927f82fc0
298 changed files with 3198 additions and 1272 deletions
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2
.gitignore vendored
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@ -85,3 +85,5 @@ transaction.log
*-shell.log
apache-cxf/cxf-aegis/baeldung.xml
libraries-2/*.db

15
algorithms-miscellaneous-2/src/test/java/com/baeldung/jgrapht/GraphImageGenerationUnitTest.java
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@ -1,16 +1,21 @@
package com.baeldung.jgrapht;
import static org.junit.Assert.assertTrue;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.jgrapht.ext.JGraphXAdapter;
import org.jgrapht.graph.DefaultDirectedGraph;
import org.jgrapht.graph.DefaultEdge;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.mxgraph.layout.mxCircleLayout;
import com.mxgraph.layout.mxIGraphLayout;
import com.mxgraph.util.mxCellRenderer;
@ -20,7 +25,7 @@ public class GraphImageGenerationUnitTest {
@Before
public void createGraph() throws IOException {
File imgFile = new File("src/test/resources/graph.png");
File imgFile = new File("src/test/resources/graph1.png");
imgFile.createNewFile();
g = new DefaultDirectedGraph<String, DefaultEdge>(DefaultEdge.class);
String x1 = "x1";
@ -34,12 +39,18 @@ public class GraphImageGenerationUnitTest {
g.addEdge(x3, x1);
}
@After
public void cleanup() {
File imgFile = new File("src/test/resources/graph1.png");
imgFile.deleteOnExit();
}
@Test
public void givenAdaptedGraph_whenWriteBufferedImage_ThenFileShouldExist() throws IOException {
JGraphXAdapter<String, DefaultEdge> graphAdapter = new JGraphXAdapter<String, DefaultEdge>(g);
mxIGraphLayout layout = new mxCircleLayout(graphAdapter);
layout.execute(graphAdapter.getDefaultParent());
File imgFile = new File("src/test/resources/graph.png");
File imgFile = new File("src/test/resources/graph1.png");
BufferedImage image = mxCellRenderer.createBufferedImage(graphAdapter, null, 2, Color.WHITE, true, null);
ImageIO.write(image, "PNG", imgFile);
assertTrue(imgFile.exists());

2
apache-libraries/pom.xml
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@ -2,7 +2,7 @@
<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>apache-miscellaneous-1</artifactId>
<artifactId>apache-libraries</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>apache-libraries</name>

4
aws-app-sync/pom.xml
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@ -13,10 +13,6 @@
<relativePath>../parent-boot-2</relativePath>
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>

2
cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml
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@ -6,7 +6,7 @@
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>cf-uaa-oauth2-client</artifactId>
<name>uaa-client-webapp</name>
<name>cf-uaa-oauth2-client</name>
<description>Demo project for Spring Boot</description>
<parent>

2
core-java-modules/core-java-8-datetime-2/pom.xml
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@ -6,7 +6,7 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-8-datetime-2</artifactId>
<version>${project.parent.version}</version>
<name>core-java-8-datetime</name>
<name>core-java-8-datetime-2</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung.core-java-modules</groupId>

23
core-java-modules/core-java-9-new-features/src/test/java/com/baeldung/java9/currentmethod/CurrentExecutingMethodUnitTest.java Normal file
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@ -0,0 +1,23 @@
package com.baeldung.java9.currentmethod;
import org.junit.Test;
import java.util.Optional;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class CurrentExecutingMethodUnitTest {
@Test
public void givenJava9_whenWalkingTheStack_thenFindMethod() {
StackWalker walker = StackWalker.getInstance();
Optional<String> methodName = walker.walk(frames -> frames
.findFirst()
.map(StackWalker.StackFrame::getMethodName)
);
assertTrue(methodName.isPresent());
assertEquals("givenJava9_whenWalkingTheStack_thenFindMethod", methodName.get());
}
}

52
core-java-modules/core-java-arrays-operations-basic/pom.xml
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@ -13,32 +13,6 @@
<name>core-java-arrays-operations-basic</name>
<packaging>jar</packaging>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${shade.plugin.version}</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>benchmarks</finalName>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.openjdk.jmh.Main</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
@ -66,6 +40,32 @@
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${shade.plugin.version}</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>benchmarks</finalName>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.openjdk.jmh.Main</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<shade.plugin.version>3.2.0</shade.plugin.version>

52
core-java-modules/core-java-arrays-sorting/pom.xml
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@ -14,32 +14,6 @@
<name>core-java-arrays-sorting</name>
<packaging>jar</packaging>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${shade.plugin.version}</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>benchmarks</finalName>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.openjdk.jmh.Main</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<!-- Utilities -->
<dependency>
@ -74,6 +48,32 @@
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${shade.plugin.version}</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>benchmarks</finalName>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.openjdk.jmh.Main</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<shade.plugin.version>3.2.0</shade.plugin.version>

10
core-java-modules/core-java-concurrency-basic-2/src/main/java/com/baeldung/concurrent/localvariables/LocalAndLambda.java Normal file
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@ -0,0 +1,10 @@
package com.baeldung.concurrent.localvariables;
public class LocalAndLambda {
public static void main(String... args) {
String text = "";
// Un-commenting the next line will break compilation, because text is no longer effectively final
// text = "675";
new Thread(() -> System.out.println(text)).start();
}
}

20
core-java-modules/core-java-concurrency-basic-2/src/main/java/com/baeldung/concurrent/localvariables/LocalVariables.java Normal file
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@ -0,0 +1,20 @@
package com.baeldung.concurrent.localvariables;
import java.security.SecureRandom;
public class LocalVariables implements Runnable {
private int field;
public static void main(String... args) {
LocalVariables target = new LocalVariables();
new Thread(target).start();
new Thread(target).start();
}
@Override
public void run() {
field = new SecureRandom().nextInt();
int local = new SecureRandom().nextInt();
System.out.println(field + " - " + local);
}
}

1
core-java-modules/core-java-exceptions-2/pom.xml
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@ -33,7 +33,6 @@
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<commons.lang3.version>3.10</commons.lang3.version>
<!-- testing -->
<assertj-core.version>3.10.0</assertj-core.version>

55
core-java-modules/core-java-exceptions-2/src/test/java/com/baeldung/exceptionininitializererror/ExceptionInInitializerErrorUnitTest.java Normal file
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@ -0,0 +1,55 @@
package com.baeldung.exceptionininitializererror;
import org.junit.Test;
import java.lang.reflect.Constructor;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
public class ExceptionInInitializerErrorUnitTest {
@Test
public void givenStaticVar_whenThrows_thenWrapsItInAnExceptionInInitializerError() {
assertThatThrownBy(StaticVar::new)
.isInstanceOf(ExceptionInInitializerError.class)
.hasCauseInstanceOf(RuntimeException.class);
}
@Test
public void givenStaticBlock_whenThrows_thenWrapsItInAnExceptionInInitializerError() {
assertThatThrownBy(StaticBlock::new)
.isInstanceOf(ExceptionInInitializerError.class)
.hasCauseInstanceOf(ArithmeticException.class);
}
private static class CheckedConvention {
private static Constructor<?> constructor;
static {
try {
constructor = CheckedConvention.class.getDeclaredConstructor();
} catch (NoSuchMethodException e) {
throw new ExceptionInInitializerError(e);
}
}
}
private static class StaticVar {
private static int state = initializeState();
private static int initializeState() {
throw new RuntimeException();
}
}
private static class StaticBlock {
private static int state;
static {
state = 42 / 0;
}
}
}

10
core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/Course.java Normal file
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@ -0,0 +1,10 @@
package com.baeldung.objectsize;
public class Course {
private String name;
public Course(String name) {
this.name = name;
}
}

11
core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/InstrumentedSize.java Normal file
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@ -0,0 +1,11 @@
package com.baeldung.objectsize;
public class InstrumentedSize {
public static void main(String[] args) {
String ds = "Data Structures";
Course course = new Course(ds);
System.out.println(ObjectSizeCalculator.sizeOf(course));
}
}

1
core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/MANIFEST.MF Normal file
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@ -0,0 +1 @@
Premain-Class: com.baeldung.objectsize.ObjectSizeCalculator

16
core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/ObjectSizeCalculator.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.objectsize;
import java.lang.instrument.Instrumentation;
public class ObjectSizeCalculator {
private static Instrumentation instrumentation;
public static void premain(String args, Instrumentation inst) {
instrumentation = inst;
}
public static long sizeOf(Object o) {
return instrumentation.getObjectSize(o);
}
}

40
core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/ObjectSizeUnitTest.java Normal file
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@ -0,0 +1,40 @@
package com.baeldung.objectsize;
import org.junit.Test;
import org.openjdk.jol.info.ClassLayout;
import org.openjdk.jol.info.GraphLayout;
import org.openjdk.jol.vm.VM;
public class ObjectSizeUnitTest {
@Test
public void printingTheVMDetails() {
System.out.println(VM.current().details());
}
@Test
public void printingTheProfClassLayout() {
System.out.println(ClassLayout.parseClass(Professor.class).toPrintable());
}
@Test
public void printingTheCourseClassLayout() {
System.out.println(ClassLayout.parseClass(Course.class).toPrintable());
}
@Test
public void printingACourseInstanceLayout() {
String ds = "Data Structures";
Course course = new Course(ds);
System.out.println("The shallow size is :" + VM.current().sizeOf(course));
System.out.println(ClassLayout.parseInstance(course).toPrintable());
System.out.println(ClassLayout.parseInstance(ds).toPrintable());
System.out.println(ClassLayout.parseInstance(ds.toCharArray()).toPrintable());
System.out.println(GraphLayout.parseInstance(course).totalSize());
System.out.println(GraphLayout.parseInstance(course).toFootprint());
System.out.println(GraphLayout.parseInstance(course).toPrintable());
}
}

24
core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/Professor.java Normal file
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@ -0,0 +1,24 @@
package com.baeldung.objectsize;
import java.time.LocalDate;
import java.util.List;
public class Professor {
private String name;
private boolean tenured;
private List<Course> courses;
private int level;
private LocalDate birthDay;
private double lastEvaluation;
public Professor(String name, boolean tenured, List<Course> courses,
int level, LocalDate birthDay, double lastEvaluation) {
this.name = name;
this.tenured = tenured;
this.courses = courses;
this.level = level;
this.birthDay = birthDay;
this.lastEvaluation = lastEvaluation;
}
}

2
core-java-modules/core-java-lang-2/README.md
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@ -13,4 +13,4 @@ This module contains articles about core features in the Java language
- [Comparing Long Values in Java](https://www.baeldung.com/java-compare-long-values)
- [Comparing Objects in Java](https://www.baeldung.com/java-comparing-objects)
- [Casting int to Enum in Java](https://www.baeldung.com/java-cast-int-to-enum)
- [[<-- Prev]](/core-java-modules/core-java-lang)
[[ <-- Prev]](/core-java-modules/core-java-lang)[[Next --> ]](/core-java-modules/core-java-lang-3)

5
core-java-modules/core-java-lang-3/README.md Normal file
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@ -0,0 +1,5 @@
## Core Java Lang (Part 3)
This module contains articles about core features in the Java language
- [[<-- Prev]](/core-java-modules/core-java-lang-2)

42
core-java-modules/core-java-lang-3/pom.xml Normal file
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@ -0,0 +1,42 @@
<?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>core-java-lang-3</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-lang-3</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung.core-java-modules</groupId>
<artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>core-java-lang-3</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<properties>
<assertj.version>3.12.2</assertj.version>
</properties>
</project>

0
core-java-modules/core-java-lang-2/src/main/java/com/baeldung/isinstancevsisassignablefrom/IsoscelesTriangle.java → core-java-modules/core-java-lang-3/src/main/java/com/baeldung/isinstancevsisassignablefrom/IsoscelesTriangle.java
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0
core-java-modules/core-java-lang-2/src/main/java/com/baeldung/isinstancevsisassignablefrom/Shape.java → core-java-modules/core-java-lang-3/src/main/java/com/baeldung/isinstancevsisassignablefrom/Shape.java
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0
core-java-modules/core-java-lang-2/src/main/java/com/baeldung/isinstancevsisassignablefrom/Triangle.java → core-java-modules/core-java-lang-3/src/main/java/com/baeldung/isinstancevsisassignablefrom/Triangle.java
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0
core-java-modules/core-java-lang-2/src/test/java/com/baeldung/isinstancevsisassignablefrom/IsInstanceIsAssignableFromUnitTest.java → core-java-modules/core-java-lang-3/src/test/java/com/baeldung/isinstancevsisassignablefrom/IsInstanceIsAssignableFromUnitTest.java
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30
core-java-modules/core-java-lang-3/src/test/java/com/baeldung/stringtoboolean/StringToBooleanUnitTest.java Normal file
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@ -0,0 +1,30 @@
package com.baeldung.stringtoboolean;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class StringToBooleanUnitTest {
@Test
public void givenStringTrue_whenUsingParseBoolean_thenTrue() {
assertThat(Boolean.parseBoolean("true")).isTrue();
}
@Test
public void givenStringTrue_whenUsingValueOf_thenTrue() {
assertThat(Boolean.valueOf("true")).isTrue();
}
@Test
public void givenStringTrue_whenUsingGetBoolean_thenFalse() {
assertThat(Boolean.getBoolean("true")).isFalse();
}
@Test
public void givenSystemProperty_whenUsingGetBoolean_thenTrue() {
System.setProperty("CODING_IS_FUN", "true");
assertThat(Boolean.getBoolean("CODING_IS_FUN")).isTrue();
}
}

3
core-java-modules/core-java-lang/README.md
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@ -13,4 +13,5 @@ This module contains articles about core features in the Java language
- [Retrieving a Class Name in Java](https://www.baeldung.com/java-class-name)
- [The Java continue and break Keywords](https://www.baeldung.com/java-continue-and-break)
- [Infinite Loops in Java](https://www.baeldung.com/infinite-loops-java)
- [[More --> ]](/core-java-modules/core-java-lang-2)
[[Next --> ]](/core-java-modules/core-java-lang-2)

110
core-java-modules/core-java-regex/src/test/java/com/baeldung/regex/countmatches/CountMatchesUnitTest.java Normal file
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@ -0,0 +1,110 @@
package com.baeldung.regex.countmatches;
import static org.junit.Assert.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.junit.Test;
/**
* Unit Test intended to count number of matches of a RegEx using Java 8 and 9.
*
* Java 9 is needed to run the commented out tests.
*/
public class CountMatchesUnitTest {
private static final Pattern EMAIL_ADDRESS_PATTERN = Pattern.compile("([a-z0-9_.-]+)@([a-z0-9_.-]+[a-z])");
private static final String TEXT_CONTAINING_EMAIL_ADDRESSES = "You can contact me through: writer@baeldung.com, editor@baeldung.com and team@bealdung.com";
private static final String TEXT_CONTAINING_FIVE_EMAIL_ADDRESSES = "Valid emails are: me@gmail.com, you@baeldung.com, contact@hotmail.com, press@anysite.com and support@bealdung.com";
private static final String TEXT_CONTAINING_OVERLAP_EMAIL_ADDRESSES = "Try to contact us at team@baeldung.comeditor@baeldung.com, support@baeldung.com.";
@Test
public void givenContainingEmailString_whenJava8Match_thenCountMacthesFound() {
Matcher countEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_EMAIL_ADDRESSES);
int count = 0;
while (countEmailMatcher.find()) {
count++;
}
assertEquals(3, count);
}
@Test
public void givenContainingFiveEmailsString_whenJava8Match_thenCountMacthesFound() {
Matcher countFiveEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_FIVE_EMAIL_ADDRESSES);
int count = 0;
while (countFiveEmailsMatcher.find()) {
count++;
}
assertEquals(5, count);
}
@Test
public void givenStringWithoutEmails_whenJava8Match_thenCountMacthesNotFound() {
Matcher noEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher("Simple text without emails.");
int count = 0;
while (noEmailMatcher.find()) {
count++;
}
assertEquals(0, count);
}
@Test
public void givenStringWithOverlappingEmails_whenJava8Match_thenCountWrongMatches() {
Matcher countOverlappingEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_OVERLAP_EMAIL_ADDRESSES);
int count = 0;
while (countOverlappingEmailsMatcher.find()) {
count++;
}
assertNotEquals(3, count);
}
@Test
public void givenContainingEmailString_whenStartingInJava9Match_thenCountMacthesFound() {
// uncomment to try with Java 9
// Matcher countEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_EMAIL_ADDRESSES);
// long count = countEmailMatcher.results().count();
// assertEquals(3, count);
}
@Test
public void givenContainingFiveEmailsString_whenStartingInJava9Match_thenCountMacthesFound() {
// uncomment to try with Java 9
// Matcher countFiveEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_FIVE_EMAIL_ADDRESSES);
// long count = countFiveEmailsMatcher.results().count();
// assertEquals(5, count);
}
@Test
public void givenStringWithoutEmails_whenJava9Match_thenCountMacthesNotFound() {
// uncomment to try with Java 9
// Matcher noEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher("Simple text without emails.");
// long count = noEmailMatcher.results().count();
// assertEquals(0, count);
}
@Test
public void givenStringWithOverlappingEmails_whenJava9Match_thenCountWrongMatches() {
// uncomment to try with Java 9
// Matcher countOverlappingEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_OVERLAP_EMAIL_ADDRESSES);
// long count = countOverlappingEmailsMatcher.results().count();
// assertNotEquals(3, count);
}
}

1
core-java-modules/core-java-streams/README.md
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@ -9,7 +9,6 @@ This module contains articles about the Stream API in Java.
- [Iterable to Stream in Java](https://www.baeldung.com/java-iterable-to-stream)
- [How to Iterate Over a Stream With Indices](https://www.baeldung.com/java-stream-indices)
- [Stream Ordering in Java](https://www.baeldung.com/java-stream-ordering)
- [Introduction to Protonpack](https://www.baeldung.com/java-protonpack)
- [Java Stream Filter with Lambda Expression](https://www.baeldung.com/java-stream-filter-lambda)
- [Counting Matches on a Stream Filter](https://www.baeldung.com/java-stream-filter-count)
- [Summing Numbers with Java Streams](https://www.baeldung.com/java-stream-sum)

1
core-java-modules/core-java-string-operations-2/README.md
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@ -10,7 +10,6 @@ This module contains articles about string operations.
- [Java String equalsIgnoreCase()](https://www.baeldung.com/java-string-equalsignorecase)
- [Case-Insensitive String Matching in Java](https://www.baeldung.com/java-case-insensitive-string-matching)
- [L-Trim and R-Trim Alternatives in Java](https://www.baeldung.com/java-trim-alternatives)
- [Java Convert PDF to Base64](https://www.baeldung.com/java-convert-pdf-to-base64)
- [Encode a String to UTF-8 in Java](https://www.baeldung.com/java-string-encode-utf-8)
- [Guide to Character Encoding](https://www.baeldung.com/java-char-encoding)
- [Convert Hex to ASCII in Java](https://www.baeldung.com/java-convert-hex-to-ascii) #remove additional readme file

25
core-java-modules/pom.xml
View File

@ -85,6 +85,7 @@
<module>core-java-lambdas</module>
<module>core-java-lang</module>
<module>core-java-lang-2</module>
<module>core-java-lang-3</module>
<module>core-java-lang-math</module>
<module>core-java-lang-math-2</module>
<module>core-java-lang-oop-constructors</module>
@ -134,18 +135,6 @@
<module>pre-jpms</module>
</modules>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencyManagement>
<dependencies>
<dependency>
@ -163,6 +152,18 @@
</dependencies>
</dependencyManagement>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
</plugins>
</pluginManagement>
</build>
<properties>
<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
<junit-jupiter.version>5.6.2</junit-jupiter.version>

20
ddd/pom.xml
View File

@ -17,16 +17,6 @@
<relativePath>../parent-boot-2</relativePath>
</parent>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
@ -105,6 +95,16 @@
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
</plugins>
</build>
<properties>
<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>

7
guava-2/README.md Normal file
View File

@ -0,0 +1,7 @@
## Guava
This module contains articles a Google Guava
### Relevant Articles:
- [Introduction to Guava Throwables](https://www.baeldung.com/guava-throwables)
- [Guava CharMatcher](https://www.baeldung.com/guava-string-charmatcher)

48
guava-2/pom.xml Normal file
View File

@ -0,0 +1,48 @@
<?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>guava-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>guava-2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<!-- test scoped -->
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>guava</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<properties>
<!-- testing -->
<assertj.version>3.6.1</assertj.version>
</properties>
</project>

113
guava-2/src/test/java/com/baeldung/guava/charmatcher/GuavaCharMatcherUnitTest.java Normal file
View File

@ -0,0 +1,113 @@
package com.baeldung.guava.charmatcher;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import org.junit.Test;
import com.google.common.base.CharMatcher;
import com.google.common.base.Predicate;
public class GuavaCharMatcherUnitTest {
@Test
public void whenRemoveSpecialCharacters_thenRemoved() {
final String input = "H*el.lo,}12";
final CharMatcher matcher = CharMatcher.javaLetterOrDigit();
final String result = matcher.retainFrom(input);
assertEquals("Hello12", result);
}
@Test
public void whenRemoveNonASCIIChars_thenRemoved() {
final String input = "あhello₤";
String result = CharMatcher.ascii().retainFrom(input);
assertEquals("hello", result);
result = CharMatcher.inRange('0', 'z').retainFrom(input);
assertEquals("hello", result);
}
@Test
public void whenValidateString_thenValid() {
final String input = "hello";
boolean result = CharMatcher.javaLowerCase().matchesAllOf(input);
assertTrue(result);
result = CharMatcher.is('e').matchesAnyOf(input);
assertTrue(result);
result = CharMatcher.javaDigit().matchesNoneOf(input);
assertTrue(result);
}
@Test
public void whenTrimString_thenTrimmed() {
final String input = "---hello,,,";
String result = CharMatcher.is('-').trimLeadingFrom(input);
assertEquals("hello,,,", result);
result = CharMatcher.is(',').trimTrailingFrom(input);
assertEquals("---hello", result);
result = CharMatcher.anyOf("-,").trimFrom(input);
assertEquals("hello", result);
}
@Test
public void whenCollapseFromString_thenCollapsed() {
final String input = " hel lo ";
String result = CharMatcher.is(' ').collapseFrom(input, '-');
assertEquals("-hel-lo-", result);
result = CharMatcher.is(' ').trimAndCollapseFrom(input, '-');
assertEquals("hel-lo", result);
}
@Test
public void whenReplaceFromString_thenReplaced() {
final String input = "apple-banana.";
String result = CharMatcher.anyOf("-.").replaceFrom(input, '!');
assertEquals("apple!banana!", result);
result = CharMatcher.is('-').replaceFrom(input, " and ");
assertEquals("apple and banana.", result);
}
@Test
public void whenCountCharInString_thenCorrect() {
final String input = "a, c, z, 1, 2";
int result = CharMatcher.is(',').countIn(input);
assertEquals(4, result);
result = CharMatcher.inRange('a', 'h').countIn(input);
assertEquals(2, result);
}
@Test
public void whenRemoveCharsNotInCharset_thenRemoved() {
final Charset charset = Charset.forName("cp437");
final CharsetEncoder encoder = charset.newEncoder();
final Predicate<Character> inRange = new Predicate<Character>() {
@Override
public boolean apply(final Character c) {
return encoder.canEncode(c);
}
};
final String result = CharMatcher.forPredicate(inRange).retainFrom("helloは");
assertEquals("hello", result);
}
}

2
guava/src/test/java/com/baeldung/guava/ThrowablesUnitTest.java → guava-2/src/test/java/com/baeldung/guava/throwables/ThrowablesUnitTest.java
View File

@ -1,4 +1,4 @@
package com.baeldung.guava;
package com.baeldung.guava.throwables;
import com.google.common.base.Throwables;
import org.junit.Test;

13
guava-2/src/test/resources/.gitignore vendored Normal file
View File

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

1
guava-2/src/test/resources/test.out Normal file
View File

@ -0,0 +1 @@
John Jane Adam Tom

1
guava-2/src/test/resources/test1.in Normal file
View File

@ -0,0 +1 @@
Hello world

1
guava-2/src/test/resources/test1_1.in Normal file
View File

@ -0,0 +1 @@
Test

4
guava-2/src/test/resources/test2.in Normal file
View File

@ -0,0 +1,4 @@
John
Jane
Adam
Tom

1
guava-2/src/test/resources/test_copy.in Normal file
View File

@ -0,0 +1 @@
Hello world

BIN
guava-2/src/test/resources/test_le.txt Normal file
View File

Binary file not shown.

30
guava-collections-map/pom.xml
View File

@ -14,6 +14,21 @@
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>guava-collections-map</finalName>
@ -33,21 +48,6 @@
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<junit-jupiter.version>5.6.2</junit-jupiter.version>
</properties>

24
guava-collections-set/pom.xml
View File

@ -13,18 +13,6 @@
<relativePath>../parent-java</relativePath>
</parent>
<build>
<finalName>guava-collections-set</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<dependencies>
<!-- test scoped -->
<dependency>
@ -47,6 +35,18 @@
</dependency>
</dependencies>
<build>
<finalName>guava-collections-set</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<properties>
<!-- testing -->
<assertj.version>3.6.1</assertj.version>

1
guava-collections/README.md
View File

@ -14,4 +14,3 @@ This module contains articles about Google Guava collections
- [Guava – Lists](https://www.baeldung.com/guava-lists)
- [Guide to Guava MinMaxPriorityQueue and EvictingQueue](https://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
- [Guide to Guava Table](https://www.baeldung.com/guava-table)
- [Guava CharMatcher](https://www.baeldung.com/guava-string-charmatcher)

38
guava-collections/pom.xml
View File

@ -15,25 +15,6 @@
<relativePath>../parent-java</relativePath>
</parent>
<build>
<finalName>guava-collections</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<dependencies>
<!-- utils -->
<dependency>
@ -76,6 +57,25 @@
</dependency>
</dependencies>
<build>
<finalName>guava-collections</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<properties>
<!-- util -->
<commons-collections4.version>4.1</commons-collections4.version>

111
guava-collections/src/test/java/com/baeldung/guava/joinsplit/GuavaStringUnitTest.java
View File

@ -4,20 +4,19 @@ import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsString;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import java.util.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import com.google.common.collect.*;
import org.junit.Test;
import com.google.common.base.CharMatcher;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.base.Predicate;
import com.google.common.base.Splitter;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
public class GuavaStringUnitTest {
@ -113,102 +112,4 @@ public class GuavaStringUnitTest {
assertEquals(4, result.size());
assertThat(result, contains("a", "b", "c", "d,e"));
}
@Test
public void whenRemoveSpecialCharacters_thenRemoved() {
final String input = "H*el.lo,}12";
final CharMatcher matcher = CharMatcher.javaLetterOrDigit();
final String result = matcher.retainFrom(input);
assertEquals("Hello12", result);
}
@Test
public void whenRemoveNonASCIIChars_thenRemoved() {
final String input = "あhello₤";
String result = CharMatcher.ascii().retainFrom(input);
assertEquals("hello", result);
result = CharMatcher.inRange('0', 'z').retainFrom(input);
assertEquals("hello", result);
}
@Test
public void whenValidateString_thenValid() {
final String input = "hello";
boolean result = CharMatcher.javaLowerCase().matchesAllOf(input);
assertTrue(result);
result = CharMatcher.is('e').matchesAnyOf(input);
assertTrue(result);
result = CharMatcher.javaDigit().matchesNoneOf(input);
assertTrue(result);
}
@Test
public void whenTrimString_thenTrimmed() {
final String input = "---hello,,,";
String result = CharMatcher.is('-').trimLeadingFrom(input);
assertEquals("hello,,,", result);
result = CharMatcher.is(',').trimTrailingFrom(input);
assertEquals("---hello", result);
result = CharMatcher.anyOf("-,").trimFrom(input);
assertEquals("hello", result);
}
@Test
public void whenCollapseFromString_thenCollapsed() {
final String input = " hel lo ";
String result = CharMatcher.is(' ').collapseFrom(input, '-');
assertEquals("-hel-lo-", result);
result = CharMatcher.is(' ').trimAndCollapseFrom(input, '-');
assertEquals("hel-lo", result);
}
@Test
public void whenReplaceFromString_thenReplaced() {
final String input = "apple-banana.";
String result = CharMatcher.anyOf("-.").replaceFrom(input, '!');
assertEquals("apple!banana!", result);
result = CharMatcher.is('-').replaceFrom(input, " and ");
assertEquals("apple and banana.", result);
}
@Test
public void whenCountCharInString_thenCorrect() {
final String input = "a, c, z, 1, 2";
int result = CharMatcher.is(',').countIn(input);
assertEquals(4, result);
result = CharMatcher.inRange('a', 'h').countIn(input);
assertEquals(2, result);
}
@Test
public void whenRemoveCharsNotInCharset_thenRemoved() {
final Charset charset = Charset.forName("cp437");
final CharsetEncoder encoder = charset.newEncoder();
final Predicate<Character> inRange = new Predicate<Character>() {
@Override
public boolean apply(final Character c) {
return encoder.canEncode(c);
}
};
final String result = CharMatcher.forPredicate(inRange).retainFrom("helloは");
assertEquals("hello", result);
}
}

29
guava-io/pom.xml
View File

@ -16,6 +16,21 @@
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>guava-io</finalName>
@ -35,18 +50,4 @@
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit-jupiter.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

21
guava-modules/pom.xml
View File

@ -22,16 +22,6 @@
<module>guava-21</module>
</modules>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
@ -46,4 +36,15 @@
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
</project>

1
guava/README.md
View File

@ -12,5 +12,4 @@ This module contains articles a Google Guava
- [Guide to Mathematical Utilities in Guava](https://www.baeldung.com/guava-math)
- [Bloom Filter in Java using Guava](https://www.baeldung.com/guava-bloom-filter)
- [Quick Guide to the Guava RateLimiter](https://www.baeldung.com/guava-rate-limiter)
- [Introduction to Guava Throwables](https://www.baeldung.com/guava-throwables)
- [Guava Cache](https://www.baeldung.com/guava-cache)

38
guava/pom.xml
View File

@ -15,25 +15,6 @@
<relativePath>../parent-java</relativePath>
</parent>
<build>
<finalName>guava</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
@ -62,6 +43,25 @@
</dependency>
</dependencies>
<build>
<finalName>guava</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<properties>
<!-- testing -->
<junit-jupiter.version>5.6.2</junit-jupiter.version>

24
image-processing/pom.xml
View File

@ -60,6 +60,27 @@
<artifactId>tesseract-platform</artifactId>
<version>${tesseract-platform.version}</version>
</dependency>
<dependency>
<groupId>org.imgscalr</groupId>
<artifactId>imgscalr-lib</artifactId>
<version>${imgscalr-version}</version>
</dependency>
<dependency>
<groupId>net.coobird</groupId>
<artifactId>thumbnailator</artifactId>
<version>${thumbnailator-version}</version>
</dependency>
<dependency>
<groupId>com.github.downgoon</groupId>
<artifactId>marvin</artifactId>
<version>${marvin-version}</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>com.github.downgoon</groupId>
<artifactId>MarvinPlugins</artifactId>
<version>${marvin-version}</version>
</dependency>
</dependencies>
<properties>
@ -69,6 +90,9 @@
<tess4j.version>4.5.1</tess4j.version>
<tesseract-platform.version>4.1.0-1.5.2</tesseract-platform.version>
<opencv.version>3.4.2-0</opencv.version>
<imgscalr-version>4.2</imgscalr-version>
<thumbnailator-version>0.4.11</thumbnailator-version>
<marvin-version>1.5.5</marvin-version>
</properties>
</project>

25
image-processing/src/main/java/com/baeldung/image/resize/core/Graphics2DExample.java Normal file
View File

@ -0,0 +1,25 @@
package com.baeldung.image.resize.core;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class Graphics2DExample {
static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
BufferedImage resizedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics2D = resizedImage.createGraphics();
graphics2D.drawImage(originalImage, 0, 0, targetWidth, targetHeight, null);
graphics2D.dispose();
return resizedImage;
}
public static void main(String[] args) throws IOException {
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = resizeImage(originalImage, 200, 200);
ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-graphics2d.jpg"));
}
}

24
image-processing/src/main/java/com/baeldung/image/resize/core/ImageScaledInstanceExample.java Normal file
View File

@ -0,0 +1,24 @@
package com.baeldung.image.resize.core;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class ImageScaledInstanceExample {
static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
Image resultingImage = originalImage.getScaledInstance(targetWidth, targetHeight, Image.SCALE_DEFAULT);
BufferedImage bufferedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
bufferedImage.getGraphics()
.drawImage(resultingImage, 0, 0, null);
return bufferedImage;
}
public static void main(String[] args) throws IOException {
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = resizeImage(originalImage, 200, 200);
ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-scaledinstance.jpg"));
}
}

24
image-processing/src/main/java/com/baeldung/image/resize/imgscalr/ImgscalrExample.java Normal file
View File

@ -0,0 +1,24 @@
package com.baeldung.image.resize.imgscalr;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import org.imgscalr.Scalr;
public class ImgscalrExample {
public static BufferedImage simpleResizeImage(BufferedImage originalImage, int targetWidth) {
return Scalr.resize(originalImage, targetWidth);
}
public static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
return Scalr.resize(originalImage, Scalr.Method.AUTOMATIC, Scalr.Mode.AUTOMATIC, targetWidth, targetHeight, Scalr.OP_ANTIALIAS);
}
public static void main(String[] args) throws Exception {
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = resizeImage(originalImage, 200, 200);
ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-imgscalr.jpg"));
}
}

29
image-processing/src/main/java/com/baeldung/image/resize/marvin/MarvinExample.java Normal file
View File

@ -0,0 +1,29 @@
package com.baeldung.image.resize.marvin;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.marvinproject.image.transform.scale.Scale;
import marvin.image.MarvinImage;
public class MarvinExample {
static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
MarvinImage image = new MarvinImage(originalImage);
Scale scale = new Scale();
scale.load();
scale.setAttribute("newWidth", targetWidth);
scale.setAttribute("newHeight", targetHeight);
scale.process(image.clone(), image, null, null, false);
return image.getBufferedImageNoAlpha();
}
public static void main(String args[]) throws IOException {
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = resizeImage(originalImage, 200, 200);
ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-marvin.jpg"));
}
}

31
image-processing/src/main/java/com/baeldung/image/resize/thumbnailator/ThumbnailatorExample.java Normal file
View File

@ -0,0 +1,31 @@
package com.baeldung.image.resize.thumbnailator;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import net.coobird.thumbnailator.Thumbnails;
public class ThumbnailatorExample {
static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) throws IOException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
Thumbnails.of(originalImage)
.size(targetWidth, targetHeight)
.outputFormat("JPEG")
.outputQuality(0.90)
.toOutputStream(outputStream);
byte[] data = outputStream.toByteArray();
ByteArrayInputStream inputStream = new ByteArrayInputStream(data);
return ImageIO.read(inputStream);
}
public static void main(String[] args) throws Exception {
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = resizeImage(originalImage, 200, 200);
ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-thumbnailator.jpg"));
}
}

71
image-processing/src/test/java/com/baeldung/image/resize/core/Graphics2DExampleUnitTest.java Normal file
View File

@ -0,0 +1,71 @@
package com.baeldung.image.resize.core;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.junit.Test;
public class Graphics2DExampleUnitTest {
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
assertNotEquals(originalImage.getWidth(), targetWidth);
assertNotEquals(originalImage.getHeight(), targetHeight);
BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
assertEquals(outputImage.getWidth(), targetWidth);
assertEquals(outputImage.getHeight(), targetHeight);
}
@Test(expected = Exception.class)
public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 0;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 200;
int targetHeight = 0;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenOriginalImageDoesNotExist_thenErrorIsNotThrownAndImageIsGenerated() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage outputImage = Graphics2DExample.resizeImage(null, targetWidth, targetHeight);
assertNotNull(outputImage);
assertEquals(outputImage.getWidth(), targetWidth);
assertEquals(outputImage.getHeight(), targetHeight);
}
}

69
image-processing/src/test/java/com/baeldung/image/resize/core/ImageScaledInstanceExampleUnitTest.java Normal file
View File

@ -0,0 +1,69 @@
package com.baeldung.image.resize.core;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.junit.Test;
public class ImageScaledInstanceExampleUnitTest {
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
assertNotEquals(originalImage.getWidth(), targetWidth);
assertNotEquals(originalImage.getHeight(), targetHeight);
BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
assertEquals(outputImage.getWidth(), targetWidth);
assertEquals(outputImage.getHeight(), targetHeight);
}
@Test(expected = Exception.class)
public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 0;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 200;
int targetHeight = 0;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenOriginalImageDoesNotExist_thenErrorIsThrown() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(null, targetWidth, targetHeight);
assertNull(outputImage);
}
}

69
image-processing/src/test/java/com/baeldung/image/resize/imgscalr/ImgscalrExampleUnitTest.java Normal file
View File

@ -0,0 +1,69 @@
package com.baeldung.image.resize.imgscalr;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.junit.Test;
public class ImgscalrExampleUnitTest {
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
assertNotEquals(originalImage.getWidth(), targetWidth);
assertNotEquals(originalImage.getHeight(), targetHeight);
BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
assertEquals(outputImage.getWidth(), targetWidth);
assertEquals(outputImage.getHeight(), targetHeight);
}
@Test(expected = Test.None.class)
public void whenTargetWidthIsZero_thenImageIsCreated() throws IOException {
int targetWidth = 0;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenTargetHeightIsZero_thenImageIsCreated() throws IOException {
int targetWidth = 200;
int targetHeight = 0;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Exception.class)
public void whenOriginalImageDoesNotExist_thenErrorIsThrown() {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage outputImage = ImgscalrExample.resizeImage(null, targetWidth, targetHeight);
assertNull(outputImage);
}
}

68
image-processing/src/test/java/com/baeldung/image/resize/marvin/MarvinExampleUnitTest.java Normal file
View File

@ -0,0 +1,68 @@
package com.baeldung.image.resize.marvin;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.junit.Test;
public class MarvinExampleUnitTest {
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
assertNotEquals(originalImage.getWidth(), targetWidth);
assertNotEquals(originalImage.getHeight(), targetHeight);
BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
assertEquals(outputImage.getWidth(), targetWidth);
assertEquals(outputImage.getHeight(), targetHeight);
}
@Test(expected = Exception.class)
public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 0;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 200;
int targetHeight = 0;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenOriginalImageDoesNotExist_thenErrorIsThrown() {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage outputImage = MarvinExample.resizeImage(null, targetWidth, targetHeight);
assertNull(outputImage);
}
}

68
image-processing/src/test/java/com/baeldung/image/resize/thumbnailator/ThumbnailatorExampleUnitTest.java Normal file
View File

@ -0,0 +1,68 @@
package com.baeldung.image.resize.thumbnailator;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.junit.Test;
public class ThumbnailatorExampleUnitTest {
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNotNull(outputImage);
}
@Test(expected = Test.None.class)
public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
assertNotEquals(originalImage.getWidth(), targetWidth);
assertNotEquals(originalImage.getHeight(), targetHeight);
BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
assertEquals(outputImage.getWidth(), targetWidth);
assertEquals(outputImage.getHeight(), targetHeight);
}
@Test(expected = Exception.class)
public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 0;
int targetHeight = 200;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
int targetWidth = 200;
int targetHeight = 0;
BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
assertNull(outputImage);
}
@Test(expected = Exception.class)
public void whenOriginalImageDoesNotExist_thenErrorIsThrown() throws IOException {
int targetWidth = 200;
int targetHeight = 200;
BufferedImage outputImage = ThumbnailatorExample.resizeImage(null, targetWidth, targetHeight);
assertNull(outputImage);
}
}

59
jackson-modules/jackson-conversions-2/src/test/java/com/baeldung/jackson/csv/CsvUnitTest.java
View File

@ -7,48 +7,59 @@ import java.io.IOException;
import java.nio.charset.Charset;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.google.common.io.Files;
public class CsvUnitTest {
private File csvFromJson;
private File jsonFromCsv;
private File formattedCsvFromJson;
@Before
public void setup() {
csvFromJson = new File("src/main/resources/csv/csvFromJson.csv");
jsonFromCsv = new File("src/main/resources/csv/jsonFromCsv.json");
formattedCsvFromJson = new File("src/main/resources/csv/formattedCsvFromJson.csv");
}
@After
public void cleanup() {
csvFromJson.deleteOnExit();
jsonFromCsv.deleteOnExit();
formattedCsvFromJson.deleteOnExit();
}
@Test
public void givenJsonInput_thenWriteCsv() throws JsonParseException, JsonMappingException, IOException {
JsonCsvConverter.JsonToCsv(new File("src/main/resources/csv/orderLines.json"),
new File("src/main/resources/csv/csvFromJson.csv"));
assertEquals(readFile("src/main/resources/csv/csvFromJson.csv"),
readFile("src/test/resources/csv/expectedCsvFromJson.csv"));
JsonCsvConverter.JsonToCsv(new File("src/main/resources/csv/orderLines.json"), csvFromJson);
assertEquals(readFile(csvFromJson.getAbsolutePath()), readFile("src/test/resources/csv/expectedCsvFromJson.csv"));
}
@Test
public void givenCsvInput_thenWritesJson() throws JsonParseException, JsonMappingException, IOException {
JsonCsvConverter.csvToJson(new File("src/main/resources/csv/orderLines.csv"),
new File("src/main/resources/csv/jsonFromCsv.json"));
assertEquals(readFile("src/main/resources/csv/jsonFromCsv.json"),
readFile("src/test/resources/csv/expectedJsonFromCsv.json"));
JsonCsvConverter.csvToJson(new File("src/main/resources/csv/orderLines.csv"), jsonFromCsv);
assertEquals(readFile(jsonFromCsv.getAbsolutePath()), readFile("src/test/resources/csv/expectedJsonFromCsv.json"));
}
@Test
public void givenJsonInput_thenWriteFormattedCsvOutput() throws JsonParseException, JsonMappingException, IOException {
JsonCsvConverter.JsonToFormattedCsv(new File("src/main/resources/csv/orderLines.json"),
new File("src/main/resources/csv/formattedCsvFromJson.csv"));
JsonCsvConverter.JsonToFormattedCsv(new File("src/main/resources/csv/orderLines.json"), formattedCsvFromJson);
assertEquals(readFile(formattedCsvFromJson.getAbsolutePath()), readFile("src/test/resources/csv/expectedFormattedCsvFromJson.csv"));
assertEquals(readFile("src/main/resources/csv/formattedCsvFromJson.csv"),
readFile("src/test/resources/csv/expectedFormattedCsvFromJson.csv"));
}
private List<String> readFile(String filename) throws IOException {
return Files.readLines(new File(filename), Charset.forName("utf-8"));
}
}
;
};

12
jackson-modules/jackson-conversions-2/src/test/java/com/baeldung/jackson/yaml/YamlUnitTest.java
View File

@ -12,6 +12,7 @@ import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
@ -25,12 +26,19 @@ import com.fasterxml.jackson.dataformat.yaml.YAMLGenerator.Feature;
public class YamlUnitTest {
private ObjectMapper mapper;
private File orderOutput;
@Before
public void setup() {
mapper = new ObjectMapper(new YAMLFactory().disable(Feature.WRITE_DOC_START_MARKER));
mapper.findAndRegisterModules();
mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
orderOutput = new File("src/test/resources/yaml/orderOutput.yaml");
}
@After
public void cleanup() {
orderOutput.deleteOnExit();
}
@Test
@ -53,9 +61,9 @@ public class YamlUnitTest {
LocalDate.parse("2019-04-18", DateTimeFormatter.ISO_DATE),
"Customer, Jane",
lines);
mapper.writeValue(new File("src/test/resources/yaml/orderOutput.yaml"), order);
mapper.writeValue(orderOutput, order);
File outputYaml = new File("src/test/resources/yaml/orderOutput.yaml");
File outputYaml = new File(orderOutput.getAbsolutePath());
assertTrue(outputYaml.exists());
}
}

20
jackson-modules/pom.xml
View File

@ -23,16 +23,6 @@
<module>jackson-exceptions</module>
</modules>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
@ -60,6 +50,16 @@
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<properties>
<junit-jupiter.version>5.6.2</junit-jupiter.version>
</properties>

38
jackson-simple/pom.xml
View File

@ -13,25 +13,6 @@
<relativePath>../parent-java</relativePath>
</parent>
<build>
<finalName>jackson-simple</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<dependencies>
<!--jackson for xml -->
<dependency>
@ -61,6 +42,25 @@
</dependency>
</dependencies>
<build>
<finalName>jackson-simple</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
<properties>
<!-- testing -->
<junit-jupiter.version>5.6.2</junit-jupiter.version>

13
jee-7/pom.xml
View File

@ -274,10 +274,6 @@
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<serverProfile>standalone-full.xml</serverProfile>
<serverRoot>${project.build.directory}/wildfly-${wildfly.version}</serverRoot>
</properties>
<dependencies>
<dependency>
<groupId>io.undertow</groupId>
@ -347,15 +343,6 @@
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
<configuration>
<environmentVariables>
<JBOSS_HOME>${project.build.directory}/wildfly-${wildfly.version}</JBOSS_HOME>
</environmentVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>

23
jee-7/src/test/resources/arquillian.xml Normal file
View File

@ -0,0 +1,23 @@
<arquillian xmlns="http://jboss.org/schema/arquillian" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://jboss.org/schema/arquillian http://jboss.org/schema/arquillian/arquillian_1_0.xsd">
<container qualifier="wildfly-managed" default="true">
<configuration>
<property name="jbossHome">target/wildfly-8.2.1.Final</property>
<property name="serverConfig">standalone.xml</property>
<property name="outputToConsole">true</property>
<property name="managementPort">9990</property>
<property name="javaVmArguments">-Djboss.http.port=8639</property>
</configuration>
</container>
<container qualifier="wildfly-remote">
<configuration>
<property name="managementAddress">127.0.0.1</property>
<property name="managementPort">9990</property>
<property name="username">admin</property>
<property name="password">pass</property>
<property name="allowConnectingToRunningServer">true</property>
</configuration>
</container>
</arquillian>

1
libraries-6/README.md
View File

@ -14,4 +14,5 @@ Remember, for advanced libraries like [Jackson](/jackson) and [JUnit](/testing-m
- [Introduction to Functional Java](https://www.baeldung.com/java-functional-library)
- [A Guide to the Reflections Library](https://www.baeldung.com/reflections-library)
- [Exactly Once Processing in Kafka](https://www.baeldung.com/kafka-exactly-once)
- [Introduction to Protonpack](https://www.baeldung.com/java-protonpack)
- More articles [[<-- prev]](/libraries-5)

2
core-java-modules/core-java-streams/src/test/java/com/baeldung/protonpack/ProtonpackUnitTest.java → libraries-6/src/test/java/com/baeldung/protonpack/ProtonpackUnitTest.java
View File

@ -10,8 +10,6 @@ import org.junit.Test;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;

35
libraries-data-2/pom.xml
View File

@ -184,6 +184,24 @@
</repository>
</repositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<!-- Excludes FastR classes from compilations since they require GraalVM -->
<excludes>
<exclude>com/baeldung/r/FastRMean.java</exclude>
</excludes>
<testExcludes>
<exclude>com/baeldung/r/FastRMeanUnitTest.java</exclude>
</testExcludes>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<flink.version>1.5.0</flink.version>
<hll.version>1.6.0</hll.version>
@ -205,21 +223,4 @@
<kafka.version>2.5.0</kafka.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<!-- Excludes FastR classes from compilations since they require GraalVM -->
<excludes>
<exclude>com/baeldung/r/FastRMean.java</exclude>
</excludes>
<testExcludes>
<exclude>com/baeldung/r/FastRMeanUnitTest.java</exclude>
</testExcludes>
</configuration>
</plugin>
</plugins>
</build>
</project>

11
libraries-data-2/src/test/java/com/baeldung/univocity/ParsingServiceUnitTest.java
View File

@ -2,15 +2,26 @@ package com.baeldung.univocity;
import static org.junit.Assert.assertEquals;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.junit.After;
import org.junit.Test;
import com.baeldung.univocity.model.Product;
public class ParsingServiceUnitTest {
@After
public void cleanup() {
File csvFile = new File("src/test/resources/outputProductList.csv");
csvFile.deleteOnExit();
File textFile = new File("src/test/resources/outputProductList.txt");
textFile.deleteOnExit();
}
@Test
public void givenCsvFile_thenParsedResultsShouldBeReturned() {
ParsingService parsingService = new ParsingService();

2
libraries-testing/src/main/java/com/baeldung/serenity/spring/AdderService.java
View File

@ -1,8 +1,10 @@
package com.baeldung.serenity.spring;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;
@Service
@Scope("prototype")
public class AdderService {
private int num;

18
logging-modules/log-mdc/src/main/java/com/baeldung/mdc/TransferDemo.java
View File

@ -1,19 +1,21 @@
package com.baeldung.mdc;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.apache.log4j.Logger;
import com.baeldung.mdc.log4j.Log4JRunnable;
import com.baeldung.mdc.log4j2.Log4J2Runnable;
import com.baeldung.mdc.pool.MdcAwareThreadPoolExecutor;
import com.baeldung.mdc.slf4j.Slf4jRunnable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor.AbortPolicy;
import static java.util.concurrent.TimeUnit.MINUTES;
public class TransferDemo {
public static void main(String[] args) {
ExecutorService executor = Executors.newFixedThreadPool(3);
ExecutorService executor = new MdcAwareThreadPoolExecutor(3, 3, 0, MINUTES,
new LinkedBlockingQueue<>(), Thread::new, new AbortPolicy());
TransactionFactory transactionFactory = new TransactionFactory();
for (int i = 0; i < 10; i++) {

31
logging-modules/log-mdc/src/main/java/com/baeldung/mdc/pool/MdcAwareThreadPoolExecutor.java Normal file
View File

@ -0,0 +1,31 @@
package com.baeldung.mdc.pool;
import org.apache.logging.log4j.ThreadContext;
import org.slf4j.MDC;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class MdcAwareThreadPoolExecutor extends ThreadPoolExecutor {
public MdcAwareThreadPoolExecutor(int corePoolSize,
int maximumPoolSize,
long keepAliveTime,
TimeUnit unit,
BlockingQueue<Runnable> workQueue,
ThreadFactory threadFactory,
RejectedExecutionHandler handler) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
}
@Override
protected void afterExecute(Runnable r, Throwable t) {
System.out.println("Cleaning the MDC context");
MDC.clear();
org.apache.log4j.MDC.clear();
ThreadContext.clearAll();
}
}

2
logging-modules/log-mdc/src/main/java/com/baeldung/mdc/slf4j/Slf4jRunnable.java
View File

@ -18,7 +18,7 @@ public class Slf4jRunnable implements Runnable {
new Slf4TransferService().transfer(tx.getAmount());
MDC.clear();
// MDC.clear(); We don't need this with MdcAwareThreadPoolExecutor
}
}

2
machine-learning/pom.xml
View File

@ -6,7 +6,7 @@
<modelVersion>4.0.0</modelVersion>
<artifactId>machine-learning</artifactId>
<version>1.0-SNAPSHOT</version>
<name>Supervised Learning</name>
<name>machine-learning</name>
<packaging>jar</packaging>
<parent>

3
maven-all/maven-custom-plugin/README.md
View File

@ -1,3 +0,0 @@
### Relevant Articles:
- [How to Create a Maven Plugin](https://www.baeldung.com/maven-plugin)

18
maven-all/maven/README.md
View File

@ -1,18 +0,0 @@
## Apache Maven
This module contains articles about core Apache Maven. Articles about other Maven plugins (such as the Maven WAR Plugin)
have their own dedicated modules.
### Relevant Articles
- [Guide to the Core Maven Plugins](https://www.baeldung.com/core-maven-plugins)
- [Maven Resources Plugin](https://www.baeldung.com/maven-resources-plugin)
- [Quick Guide to the Maven Surefire Plugin](https://www.baeldung.com/maven-surefire-plugin)
- [The Maven Failsafe Plugin](https://www.baeldung.com/maven-failsafe-plugin)
- [The Maven Verifier Plugin](https://www.baeldung.com/maven-verifier-plugin)
- [The Maven Clean Plugin](https://www.baeldung.com/maven-clean-plugin)
- [Build a Jar with Maven and Ignore the Test Results](https://www.baeldung.com/maven-ignore-test-results)
- [Maven Project with Multiple Source Directories](https://www.baeldung.com/maven-project-multiple-src-directories)
- [Integration Testing with Maven](https://www.baeldung.com/maven-integration-test)
- [Apache Maven Standard Directory Layout](https://www.baeldung.com/maven-directory-structure)
- [Multi-Module Project with Maven](https://www.baeldung.com/maven-multi-module)

3
maven-all/maven/maven-enforcer/README.md
View File

@ -1,3 +0,0 @@
### Relevant Articles
- [Maven Enforcer Plugin](https://www.baeldung.com/maven-enforcer-plugin)

54
maven-all/version-collision/pom.xml Normal file
View File

@ -0,0 +1,54 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>maven-all</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>version-collision</artifactId>
<packaging>pom</packaging>
<modules>
<module>project-a</module>
<module>project-b</module>
<module>project-collision</module>
</modules>
<!--comment section below to provoke version collision in project-collision module-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>29.0-jre</version>
</dependency>
</dependencies>
</dependencyManagement>
<!-- uncomment section below to ban the use of transitive dependencies -->
<!-- <build>-->
<!-- <plugins>-->
<!-- <plugin>-->
<!-- <groupId>org.apache.maven.plugins</groupId>-->
<!-- <artifactId>maven-enforcer-plugin</artifactId>-->
<!-- <version>3.0.0-M3</version>-->
<!-- <executions>-->
<!-- <execution>-->
<!-- <id>enforce-banned-dependencies</id>-->
<!-- <goals>-->
<!-- <goal>enforce</goal>-->
<!-- </goals>-->
<!-- <configuration>-->
<!-- <rules>-->
<!-- <banTransitiveDependencies/>-->
<!-- </rules>-->
<!-- </configuration>-->
<!-- </execution>-->
<!-- </executions>-->
<!-- </plugin>-->
<!-- </plugins>-->
<!-- </build>-->
</project>

21
maven-all/version-collision/project-a/pom.xml Normal file
View File

@ -0,0 +1,21 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>version-collision</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>project-a</artifactId>
<dependencies>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>22.0</version>
</dependency>
</dependencies>
</project>

21
maven-all/version-collision/project-b/pom.xml Normal file
View File

@ -0,0 +1,21 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>version-collision</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>project-b</artifactId>
<dependencies>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>29.0-jre</version>
</dependency>
</dependencies>
</project>

34
maven-all/version-collision/project-collision/pom.xml Normal file
View File

@ -0,0 +1,34 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>version-collision</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>project-collision</artifactId>
<dependencies>
<dependency>
<groupId>com.baeldung</groupId>
<artifactId>project-a</artifactId>
<version>0.0.1-SNAPSHOT</version>
<!-- uncomment to exclude guava transitive artifact from module -->
<!-- <exclusions>-->
<!-- <exclusion>-->
<!-- <groupId>com.google.guava</groupId>-->
<!-- <artifactId>guava</artifactId>-->
<!-- </exclusion>-->
<!-- </exclusions>-->
</dependency>
<dependency>
<groupId>com.baeldung</groupId>
<artifactId>project-b</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>

14
maven-all/version-collision/project-collision/src/test/java/com/baeldung/version/collision/VersionCollisionUnitTest.java Normal file
View File

@ -0,0 +1,14 @@
package com.baeldung.version.collision;
import com.google.common.util.concurrent.Futures;
import org.junit.Test;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.junit.Assert.assertThat;
public class VersionCollisionUnitTest {
@Test
public void whenVersionCollisionDoesNotExist_thenShouldCompile() {
assertThat(Futures.immediateVoidFuture(), notNullValue());
}
}

3
maven-all/README.md → maven-modules/README.md
View File

@ -5,4 +5,5 @@ This module contains articles about Apache Maven. Please refer to its submodules
### Relevant Articles
- [Apache Maven Tutorial](https://www.baeldung.com/maven)
- [Find Unused Maven Dependencies](https://www.baeldung.com/maven-unused-dependencies)
- [Apache Maven Standard Directory Layout](https://www.baeldung.com/maven-directory-structure)
- [Multi-Module Project with Maven](https://www.baeldung.com/maven-multi-module)

0
maven-all/compiler-plugin-java-9/README.md → maven-modules/compiler-plugin-java-9/README.md
View File

0
maven-all/compiler-plugin-java-9/pom.xml → maven-modules/compiler-plugin-java-9/pom.xml
View File

0
maven-all/compiler-plugin-java-9/src/main/java/com/baeldung/maven/java9/MavenCompilerPlugin.java → maven-modules/compiler-plugin-java-9/src/main/java/com/baeldung/maven/java9/MavenCompilerPlugin.java
View File

0
maven-all/compiler-plugin-java-9/src/main/java/module-info.java → maven-modules/compiler-plugin-java-9/src/main/java/module-info.java
View File

7
maven-modules/maven-custom-plugin/README.md Normal file
View File

@ -0,0 +1,7 @@
## Apache Maven
This module contains articles about creating a custom plugin in Maven.
### Relevant Articles
- [How to Create a Maven Plugin](https://www.baeldung.com/maven-plugin)

0
maven-all/maven-custom-plugin/counter-maven-plugin/pom.xml → maven-modules/maven-custom-plugin/counter-maven-plugin/pom.xml
View File

0
maven-all/maven-custom-plugin/counter-maven-plugin/src/main/java/com/baeldung/maven/plugin/validator/DependencyCounterMojo.java → maven-modules/maven-custom-plugin/counter-maven-plugin/src/main/java/com/baeldung/maven/plugin/validator/DependencyCounterMojo.java
View File

21
maven-modules/maven-custom-plugin/pom.xml Normal file
View File

@ -0,0 +1,21 @@
<?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>maven-custom-plugin</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>maven-custom-plugin</name>
<packaging>pom</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>maven-modules</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modules>
<module>counter-maven-plugin</module>
<module>usage-example</module>
</modules>
</project>

2
maven-all/maven-custom-plugin/usage-example/pom.xml → maven-modules/maven-custom-plugin/usage-example/pom.xml
View File

@ -5,7 +5,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>example</artifactId>
<artifactId>usage-example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>

0
maven-all/maven/.gitignore → maven-modules/maven-integration-test/.gitignore vendored
View File

10
maven-modules/maven-integration-test/README.md Normal file
View File

@ -0,0 +1,10 @@
## Apache Maven
This module contains articles about Integration Testing with Maven and related plugins.
### Relevant Articles
- [Integration Testing with Maven](https://www.baeldung.com/maven-integration-test)
- [Build a Jar with Maven and Ignore the Test Results](https://www.baeldung.com/maven-ignore-test-results)
- [Quick Guide to the Maven Surefire Plugin](https://www.baeldung.com/maven-surefire-plugin)
- [The Maven Failsafe Plugin](https://www.baeldung.com/maven-failsafe-plugin)

35
maven-all/maven/pom.xml → maven-modules/maven-integration-test/pom.xml
View File

@ -2,10 +2,9 @@
<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>maven</artifactId>
<artifactId>maven-integration-test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>maven</name>
<packaging>pom</packaging>
<name>maven-integration-test</name>
<parent>
<groupId>com.baeldung</groupId>
@ -14,11 +13,6 @@
<relativePath>../..</relativePath>
</parent>
<modules>
<module>custom-rule</module>
<module>maven-enforcer</module>
</modules>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
@ -126,20 +120,6 @@
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-verifier-plugin</artifactId>
<version>${maven.verifier.version}</version>
<configuration>
<verificationFile>input-resources/verifications.xml</verificationFile>
</configuration>
<executions>
<execution>
<goals>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>${maven.clean.version}</version>
@ -156,17 +136,6 @@
<artifactId>build-helper-maven-plugin</artifactId>
<version>${maven.build.helper.version}</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/another-src</source>
</sources>
</configuration>
</execution>
<execution>
<id>add-integration-test-source</id>
<phase>generate-test-sources</phase>

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