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JAVA-15787 Created new di-modules and server-modules

Browse Source 
- Moved spring-freemarker to spring-web-modules
This commit is contained in:
Dhawal Kapil
2022-11-24 20:19:58 +05:30
parent 4ea66b59ce
commit 7d3e1e13f5
156 changed files with 63 additions and 43 deletions
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9
di-modules/cdi/README.md Normal file
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## CDI
This module contains articles about Contexts and Dependency Injection (CDI)
### Relevant Articles:
- [CDI Interceptor vs Spring AspectJ](https://www.baeldung.com/cdi-interceptor-vs-spring-aspectj)
- [An Introduction to CDI (Contexts and Dependency Injection) in Java](https://www.baeldung.com/java-ee-cdi)
- [Introduction to the Event Notification Model in CDI 2.0](https://www.baeldung.com/cdi-event-notification)

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di-modules/cdi/pom.xml Normal file
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<?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>cdi</artifactId>
<name>cdi</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-spring-5</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-spring-5</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>${cdi-api.version}</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se-core</artifactId>
<version>${weld-se-core.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<cdi-api.version>2.0.SP1</cdi-api.version>
<weld-se-core.version>3.0.5.Final</weld-se-core.version>
<aspectjweaver.version>1.9.2</aspectjweaver.version>
</properties>
</project>

16
di-modules/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java Normal file
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package com.baeldung.cdi2observers.application;
import com.baeldung.cdi2observers.events.ExampleEvent;
import javax.enterprise.inject.se.SeContainer;
import javax.enterprise.inject.se.SeContainerInitializer;
public class BootstrappingApplication {
public static void main(String... args) {
SeContainerInitializer containerInitializer = SeContainerInitializer.newInstance();
try (SeContainer container = containerInitializer.initialize()) {
container.getBeanManager().fireEvent(new ExampleEvent("Welcome to Baeldung!"));
}
}
}

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di-modules/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java Normal file
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package com.baeldung.cdi2observers.events;
public class ExampleEvent {
private final String eventMessage;
public ExampleEvent(String eventMessage) {
this.eventMessage = eventMessage;
}
public String getEventMessage() {
return eventMessage;
}
}

14
di-modules/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java Normal file
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package com.baeldung.cdi2observers.events;
import javax.enterprise.event.Event;
import javax.inject.Inject;
public class ExampleEventSource {
@Inject
Event<ExampleEvent> exampleEvent;
public void fireEvent() {
exampleEvent.fireAsync(new ExampleEvent("Welcome to Baeldung!"));
}
}

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di-modules/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java Normal file
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package com.baeldung.cdi2observers.observers;
import com.baeldung.cdi2observers.events.ExampleEvent;
import javax.annotation.Priority;
import javax.enterprise.event.Observes;
public class AnotherExampleEventObserver {
public String onEvent(@Observes @Priority(2) ExampleEvent event) {
return event.getEventMessage();
}
}

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di-modules/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java Normal file
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package com.baeldung.cdi2observers.observers;
import com.baeldung.cdi2observers.events.ExampleEvent;
import com.baeldung.cdi2observers.services.TextService;
import javax.annotation.Priority;
import javax.enterprise.event.Observes;
public class ExampleEventObserver {
public String onEvent(@Observes @Priority(1) ExampleEvent event, TextService textService) {
return textService.parseText(event.getEventMessage());
}
}

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di-modules/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java Normal file
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package com.baeldung.cdi2observers.services;
public class TextService {
public String parseText(String text) {
return text.toUpperCase();
}
}

18
di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/application/FileApplication.java Normal file
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package com.baeldung.dependencyinjection.application;
import com.baeldung.dependencyinjection.imageprocessors.ImageFileProcessor;
import org.jboss.weld.environment.se.Weld;
import org.jboss.weld.environment.se.WeldContainer;
public class FileApplication {
public static void main(String[] args) {
Weld weld = new Weld();
WeldContainer container = weld.initialize();
ImageFileProcessor imageFileProcessor = container.select(ImageFileProcessor.class).get();
System.out.println(imageFileProcessor.openFile("file1.png"));
System.out.println(imageFileProcessor.writeFile("file1.png"));
System.out.println(imageFileProcessor.saveFile("file1.png"));
container.shutdown();
}
}

14
di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/factories/TimeLoggerFactory.java Normal file
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package com.baeldung.dependencyinjection.factories;
import com.baeldung.dependencyinjection.loggers.TimeLogger;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.enterprise.inject.Produces;
public class TimeLoggerFactory {
@Produces
public TimeLogger getTimeLogger() {
return new TimeLogger(new SimpleDateFormat("HH:mm"), Calendar.getInstance());
}
}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/imagefileeditors/GifFileEditor.java Normal file
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package com.baeldung.dependencyinjection.imagefileeditors;
import com.baeldung.dependencyinjection.qualifiers.GifFileEditorQualifier;
@GifFileEditorQualifier
public class GifFileEditor implements ImageFileEditor {
@Override
public String openFile(String fileName) {
return "Opening GIF file " + fileName;
}
@Override
public String editFile(String fileName) {
return "Editing GIF file " + fileName;
}
@Override
public String writeFile(String fileName) {
return "Writing GIF file " + fileName;
}
@Override
public String saveFile(String fileName) {
return "Saving GIF file " + fileName;
}
}

12
di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/imagefileeditors/ImageFileEditor.java Normal file
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package com.baeldung.dependencyinjection.imagefileeditors;
public interface ImageFileEditor {
String openFile(String fileName);
String editFile(String fileName);
String writeFile(String fileName);
String saveFile(String fileName);
}

27
di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/imagefileeditors/JpgFileEditor.java Normal file
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package com.baeldung.dependencyinjection.imagefileeditors;
import com.baeldung.dependencyinjection.qualifiers.JpgFileEditorQualifier;
@JpgFileEditorQualifier
public class JpgFileEditor implements ImageFileEditor {
@Override
public String openFile(String fileName) {
return "Opening JPG file " + fileName;
}
@Override
public String editFile(String fileName) {
return "Editing JPG file " + fileName;
}
@Override
public String writeFile(String fileName) {
return "Writing JPG file " + fileName;
}
@Override
public String saveFile(String fileName) {
return "Saving JPG file " + fileName;
}
}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/imagefileeditors/PngFileEditor.java Normal file
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package com.baeldung.dependencyinjection.imagefileeditors;
import com.baeldung.dependencyinjection.qualifiers.PngFileEditorQualifier;
@PngFileEditorQualifier
public class PngFileEditor implements ImageFileEditor {
@Override
public String openFile(String fileName) {
return "Opening PNG file " + fileName;
}
@Override
public String editFile(String fileName) {
return "Editing PNG file " + fileName;
}
@Override
public String writeFile(String fileName) {
return "Writing PNG file " + fileName;
}
@Override
public String saveFile(String fileName) {
return "Saving PNG file " + fileName;
}
}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/imageprocessors/ImageFileProcessor.java Normal file
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package com.baeldung.dependencyinjection.imageprocessors;
import com.baeldung.dependencyinjection.loggers.TimeLogger;
import com.baeldung.dependencyinjection.qualifiers.PngFileEditorQualifier;
import javax.inject.Inject;
import com.baeldung.dependencyinjection.imagefileeditors.ImageFileEditor;
public class ImageFileProcessor {
private final ImageFileEditor imageFileEditor;
private final TimeLogger timeLogger;
@Inject
public ImageFileProcessor(@PngFileEditorQualifier ImageFileEditor imageFileEditor, TimeLogger timeLogger) {
this.imageFileEditor = imageFileEditor;
this.timeLogger = timeLogger;
}
public ImageFileEditor getImageFileditor() {
return imageFileEditor;
}
public TimeLogger getTimeLogger() {
return timeLogger;
}
public String openFile(String fileName) {
return imageFileEditor.openFile(fileName) + " at: " + timeLogger.getTime();
}
public String editFile(String fileName) {
return imageFileEditor.editFile(fileName) + " at: " + timeLogger.getTime();
}
public String writeFile(String fileName) {
return imageFileEditor.writeFile(fileName) + " at: " + timeLogger.getTime();
}
public String saveFile(String fileName) {
return imageFileEditor.saveFile(fileName)+ " at: " + timeLogger.getTime();
}
}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/loggers/TimeLogger.java Normal file
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package com.baeldung.dependencyinjection.loggers;
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class TimeLogger {
private final SimpleDateFormat dateFormat;
private final Calendar calendar;
public TimeLogger(SimpleDateFormat dateFormat, Calendar calendar) {
this.dateFormat = dateFormat;
this.calendar = calendar;
}
public String getTime() {
return dateFormat.format(calendar.getTime());
}
}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/qualifiers/GifFileEditorQualifier.java Normal file
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package com.baeldung.dependencyinjection.qualifiers;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.inject.Qualifier;
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.TYPE, ElementType.PARAMETER})
public @interface GifFileEditorQualifier {}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/qualifiers/JpgFileEditorQualifier.java Normal file
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package com.baeldung.dependencyinjection.qualifiers;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.inject.Qualifier;
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.TYPE, ElementType.PARAMETER})
public @interface JpgFileEditorQualifier {}

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di-modules/cdi/src/main/java/com/baeldung/dependencyinjection/qualifiers/PngFileEditorQualifier.java Normal file
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package com.baeldung.dependencyinjection.qualifiers;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.inject.Qualifier;
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.TYPE, ElementType.PARAMETER})
public @interface PngFileEditorQualifier {}

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di-modules/cdi/src/main/java/com/baeldung/interceptor/Audited.java Normal file
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package com.baeldung.interceptor;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.interceptor.InterceptorBinding;
@InterceptorBinding
@Target({ ElementType.METHOD, ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface Audited {
}

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di-modules/cdi/src/main/java/com/baeldung/interceptor/AuditedInterceptor.java Normal file
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package com.baeldung.interceptor;
import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptor;
import javax.interceptor.InvocationContext;
@Audited
@Interceptor
public class AuditedInterceptor {
public static boolean calledBefore = false;
public static boolean calledAfter = false;
@AroundInvoke
public Object auditMethod(InvocationContext ctx) throws Exception {
calledBefore = true;
Object result = ctx.proceed();
calledAfter = true;
return result;
}
}

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di-modules/cdi/src/main/java/com/baeldung/service/SuperService.java Normal file
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package com.baeldung.service;
import com.baeldung.interceptor.Audited;
public class SuperService {
@Audited
public String deliverService(String uid) {
return uid;
}
}

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di-modules/cdi/src/main/java/com/baeldung/spring/aspect/SpringTestAspect.java Normal file
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package com.baeldung.spring.aspect;
import java.util.List;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.beans.factory.annotation.Autowired;
@Aspect
public class SpringTestAspect {
@Autowired
private List<String> accumulator;
@Around("execution(* com.baeldung.spring.service.SpringSuperService.*(..))")
public Object auditMethod(ProceedingJoinPoint jp) throws Throwable {
String methodName = jp.getSignature().getName();
accumulator.add("Call to " + methodName);
Object obj = jp.proceed();
accumulator.add("Method called successfully: " + methodName);
return obj;
}
}

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di-modules/cdi/src/main/java/com/baeldung/spring/configuration/AppConfig.java Normal file
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package com.baeldung.spring.configuration;
import java.util.ArrayList;
import java.util.List;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import com.baeldung.spring.aspect.SpringTestAspect;
import com.baeldung.spring.service.SpringSuperService;
@Configuration
@EnableAspectJAutoProxy
public class AppConfig {
@Bean
public SpringSuperService springSuperService() {
return new SpringSuperService();
}
@Bean
public SpringTestAspect springTestAspect() {
return new SpringTestAspect();
}
@Bean
public List<String> getAccumulator() {
return new ArrayList<String>();
}
}

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di-modules/cdi/src/main/java/com/baeldung/spring/service/SpringSuperService.java Normal file
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package com.baeldung.spring.service;
public class SpringSuperService {
public String getInfoFromService(String code) {
return code;
}
}

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di-modules/cdi/src/main/resources/META-INF/beans.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
bean-discovery-mode="all">
<interceptors>
<class>com.baeldung.interceptor.AuditedInterceptor</class>
</interceptors>
</beans>

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di-modules/cdi/src/main/resources/logback.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>

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di-modules/cdi/src/test/java/com/baeldung/test/InterceptorIntegrationTest.java Normal file
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package com.baeldung.test;
import org.jboss.weld.environment.se.Weld;
import org.jboss.weld.environment.se.WeldContainer;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import com.baeldung.interceptor.AuditedInterceptor;
import com.baeldung.service.SuperService;
public class InterceptorIntegrationTest {
Weld weld;
WeldContainer container;
@Before
public void init() {
weld = new Weld();
container = weld.initialize();
}
@After
public void shutdown() {
weld.shutdown();
}
@Test
public void givenTheService_whenMethodAndInterceptorExecuted_thenOK() {
SuperService superService = container.select(SuperService.class).get();
String code = "123456";
superService.deliverService(code);
Assert.assertTrue(AuditedInterceptor.calledBefore);
Assert.assertTrue(AuditedInterceptor.calledAfter);
}
}

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di-modules/cdi/src/test/java/com/baeldung/test/SpringInterceptorIntegrationTest.java Normal file
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package com.baeldung.test;
import static org.hamcrest.CoreMatchers.is;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import com.baeldung.spring.configuration.AppConfig;
import com.baeldung.spring.service.SpringSuperService;
@RunWith(SpringRunner.class)
@ContextConfiguration(classes = { AppConfig.class })
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"));
}
}

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di-modules/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java Normal file
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package com.baeldung.test.cdi2observers.tests;
import com.baeldung.cdi2observers.services.TextService;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class TextServiceUnitTest {
@Test
public void givenTextServiceInstance_whenCalledparseText_thenCorrect() {
TextService textService = new TextService();
assertThat(textService.parseText("Baeldung")).isEqualTo("BAELDUNG");
}
}

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di-modules/cdi/src/test/java/com/baeldung/test/dependencyinjection/GifFileEditorUnitTest.java Normal file
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package com.baeldung.test.dependencyinjection;
import com.baeldung.dependencyinjection.imagefileeditors.GifFileEditor;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class GifFileEditorUnitTest {
private static GifFileEditor gifFileEditor;
@BeforeClass
public static void setGifFileEditorInstance() {
gifFileEditor = new GifFileEditor();
}
@Test
public void givenGifFileEditorlInstance_whenCalledopenFile_thenOneAssertion() {
assertThat(gifFileEditor.openFile("file1.gif")).isEqualTo("Opening GIF file file1.gif");
}
@Test
public void givenGifFileEditorlInstance_whenCallededitFile_thenOneAssertion() {
assertThat(gifFileEditor.editFile("file1.gif")).isEqualTo("Editing GIF file file1.gif");
}
@Test
public void givenGifFileEditorInstance_whenCalledwriteFile_thenOneAssertion() {
assertThat(gifFileEditor.writeFile("file1.gif")).isEqualTo("Writing GIF file file1.gif");
}
@Test
public void givenGifFileEditorInstance_whenCalledsaveFile_thenOneAssertion() {
assertThat(gifFileEditor.saveFile("file1.gif")).isEqualTo("Saving GIF file file1.gif");
}
}

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di-modules/cdi/src/test/java/com/baeldung/test/dependencyinjection/ImageProcessorUnitTest.java Normal file
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package com.baeldung.test.dependencyinjection;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.within;
import java.text.ParseException;
import java.time.LocalTime;
import java.time.temporal.ChronoUnit;
import org.jboss.weld.environment.se.Weld;
import org.jboss.weld.environment.se.WeldContainer;
import org.junit.BeforeClass;
import org.junit.Test;
import com.baeldung.dependencyinjection.imagefileeditors.PngFileEditor;
import com.baeldung.dependencyinjection.imageprocessors.ImageFileProcessor;
import com.baeldung.dependencyinjection.loggers.TimeLogger;
public class ImageProcessorUnitTest {
private static ImageFileProcessor imageFileProcessor;
@BeforeClass
public static void setImageProcessorInstance() {
Weld weld = new Weld();
WeldContainer container = weld.initialize();
imageFileProcessor = container.select(ImageFileProcessor.class)
.get();
container.shutdown();
}
@Test
public void givenImageProcessorInstance_whenInjectedPngFileEditorandTimeLoggerInstances_thenTwoAssertions() {
assertThat(imageFileProcessor.getImageFileditor()).isInstanceOf(PngFileEditor.class);
assertThat(imageFileProcessor.getTimeLogger()).isInstanceOf(TimeLogger.class);
}
@Test
public void givenImageProcessorInstance_whenCalledopenFile_thenOneAssertion() throws ParseException {
LocalTime currentTime = LocalTime.now();
String openFileLog = imageFileProcessor.openFile("file1.png");
assertThat(openFileLog).contains("Opening PNG file file1.png at: ");
LocalTime loggedTime = getLoggedTime(openFileLog);
assertThat(loggedTime).isCloseTo(currentTime, within(2, ChronoUnit.MINUTES));
}
@Test
public void givenImageProcessorInstance_whenCallededitFile_thenOneAssertion() throws ParseException {
LocalTime currentTime = LocalTime.now();
String editFileLog = imageFileProcessor.editFile("file1.png");
assertThat(editFileLog).contains("Editing PNG file file1.png at: ");
LocalTime loggedTime = getLoggedTime(editFileLog);
assertThat(loggedTime).isCloseTo(currentTime, within(2, ChronoUnit.MINUTES));
}
@Test
public void givenImageProcessorInstance_whenCalledwriteFile_thenOneAssertion() throws ParseException {
LocalTime currentTime = LocalTime.now();
String writeFileLog = imageFileProcessor.writeFile("file1.png");
assertThat(writeFileLog).contains("Writing PNG file file1.png at: ");
LocalTime loggedTime = getLoggedTime(writeFileLog);
assertThat(loggedTime).isCloseTo(currentTime, within(2, ChronoUnit.MINUTES));
}
@Test
public void givenImageProcessorInstance_whenCalledsaveFile_thenOneAssertion() throws ParseException {
LocalTime currentTime = LocalTime.now();
String saveFileLog = imageFileProcessor.saveFile("file1.png");
assertThat(saveFileLog).contains("Saving PNG file file1.png at: ");
LocalTime loggedTime = getLoggedTime(saveFileLog);
assertThat(loggedTime).isCloseTo(currentTime, within(2, ChronoUnit.MINUTES));
}
private LocalTime getLoggedTime(String log) throws ParseException {
String logTimeString = log.split("at: ")[1];
int hour = Integer.valueOf(logTimeString.split(":")[0]);
int minutes = Integer.valueOf(logTimeString.split(":")[1]);
LocalTime loggedTime = LocalTime.of(hour, minutes);
return loggedTime;
}
}

37
di-modules/cdi/src/test/java/com/baeldung/test/dependencyinjection/JpgFileEditorUnitTest.java Normal file
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package com.baeldung.test.dependencyinjection;
import com.baeldung.dependencyinjection.imagefileeditors.JpgFileEditor;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class JpgFileEditorUnitTest {
private static JpgFileEditor jpgFileUtil;
@BeforeClass
public static void setJpgFileEditorInstance() {
jpgFileUtil = new JpgFileEditor();
}
@Test
public void givenJpgFileEditorInstance_whenCalledopenFile_thenOneAssertion() {
assertThat(jpgFileUtil.openFile("file1.jpg")).isEqualTo("Opening JPG file file1.jpg");
}
@Test
public void givenJpgFileEditorlInstance_whenCallededitFile_thenOneAssertion() {
assertThat(jpgFileUtil.editFile("file1.gif")).isEqualTo("Editing JPG file file1.gif");
}
@Test
public void givenJpgFileEditorInstance_whenCalledwriteFile_thenOneAssertion() {
assertThat(jpgFileUtil.writeFile("file1.jpg")).isEqualTo("Writing JPG file file1.jpg");
}
@Test
public void givenJpgFileEditorInstance_whenCalledsaveFile_thenOneAssertion() {
assertThat(jpgFileUtil.saveFile("file1.jpg")).isEqualTo("Saving JPG file file1.jpg");
}
}

39
di-modules/cdi/src/test/java/com/baeldung/test/dependencyinjection/PngFileEditorUnitTest.java Normal file
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package com.baeldung.test.dependencyinjection;
import com.baeldung.dependencyinjection.imagefileeditors.PngFileEditor;
import com.baeldung.dependencyinjection.qualifiers.PngFileEditorQualifier;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
@PngFileEditorQualifier
public class PngFileEditorUnitTest {
private static PngFileEditor pngFileEditor;
@BeforeClass
public static void setPngFileEditorInstance() {
pngFileEditor = new PngFileEditor();
}
@Test
public void givenPngFileEditorInstance_whenCalledopenFile_thenOneAssertion() {
assertThat(pngFileEditor.openFile("file1.png")).isEqualTo("Opening PNG file file1.png");
}
@Test
public void givenPngFileEditorInstance_whenCallededitFile_thenOneAssertion() {
assertThat(pngFileEditor.editFile("file1.png")).isEqualTo("Editing PNG file file1.png");
}
@Test
public void givenPngFileEditorInstance_whenCalledwriteFile_thenOneAssertion() {
assertThat(pngFileEditor.writeFile("file1.png")).isEqualTo("Writing PNG file file1.png");
}
@Test
public void givenPngFileEditorInstance_whenCalledsaveFile_thenOneAssertion() {
assertThat(pngFileEditor.saveFile("file1.png")).isEqualTo("Saving PNG file file1.png");
}
}

14
di-modules/cdi/src/test/java/com/baeldung/test/dependencyinjection/TimeLoggerFactoryUnitTest.java Normal file
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package com.baeldung.test.dependencyinjection;
import com.baeldung.dependencyinjection.factories.TimeLoggerFactory;
import com.baeldung.dependencyinjection.loggers.TimeLogger;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class TimeLoggerFactoryUnitTest {
@Test
public void givenTimeLoggerFactory_whenCalledgetTimeLogger_thenOneAssertion() {
TimeLoggerFactory timeLoggerFactory = new TimeLoggerFactory();
assertThat(timeLoggerFactory.getTimeLogger()).isInstanceOf(TimeLogger.class);
}
}

20
di-modules/cdi/src/test/java/com/baeldung/test/dependencyinjection/TimeLoggerUnitTest.java Normal file
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package com.baeldung.test.dependencyinjection;
import com.baeldung.dependencyinjection.loggers.TimeLogger;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class TimeLoggerUnitTest {
@Test
public void givenTimeLoggerInstance_whenCalledgetLogTime_thenOneAssertion() {
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm");
Calendar calendar = Calendar.getInstance();
TimeLogger timeLogger = new TimeLogger(dateFormat, calendar);
String currentTime = dateFormat.format(calendar.getTime());
assertThat(timeLogger.getTime()).isEqualTo(currentTime);
}
}

7
di-modules/dagger/README.md Normal file
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## Dagger
This module contains articles about Dagger
### Relevant articles:
- [Introduction to Dagger 2](https://www.baeldung.com/dagger-2)

48
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<?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>dagger</artifactId>
<name>dagger</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>di-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<!-- Dagger 2 -->
<dependency>
<groupId>com.google.dagger</groupId>
<artifactId>dagger</artifactId>
<version>${dagger.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Annotation processor for Dagger 2 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<annotationProcessorPaths>
<path>
<groupId>com.google.dagger</groupId>
<artifactId>dagger-compiler</artifactId>
<version>${dagger.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<dagger.version>2.16</dagger.version>
</properties>
</project>

45
di-modules/dagger/src/main/java/com/baeldung/dagger/intro/Brand.java Normal file
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package com.baeldung.dagger.intro;
/**
* Brand of a {@link Car}.
*
* @author Donato Rimenti
*
*/
public class Brand {
/**
* The name of the brand.
*/
private String name;
/**
* Instantiates a new Brand.
*
* @param name
* the {@link #name}
*/
public Brand(String name) {
this.name = name;
}
/**
* Gets the {@link #name}.
*
* @return the {@link #name}
*/
public String getName() {
return name;
}
/**
* Sets the {@link #name}.
*
* @param name
* the new {@link #name}
*/
public void setName(String name) {
this.name = name;
}
}

75
di-modules/dagger/src/main/java/com/baeldung/dagger/intro/Car.java Normal file
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package com.baeldung.dagger.intro;
import javax.inject.Inject;
/**
* Represents a car.
*
* @author Donato Rimenti
*
*/
public class Car {
/**
* The car's engine.
*/
private Engine engine;
/**
* The car's brand.
*/
private Brand brand;
/**
* Instantiates a new Car.
*
* @param engine
* the {@link #engine}
* @param brand
* the {@link #brand}
*/
@Inject
public Car(Engine engine, Brand brand) {
this.engine = engine;
this.brand = brand;
}
/**
* Gets the {@link #engine}.
*
* @return the {@link #engine}
*/
public Engine getEngine() {
return engine;
}
/**
* Sets the {@link #engine}.
*
* @param engine
* the new {@link #engine}
*/
public void setEngine(Engine engine) {
this.engine = engine;
}
/**
* Gets the {@link #brand}.
*
* @return the {@link #brand}
*/
public Brand getBrand() {
return brand;
}
/**
* Sets the {@link #brand}.
*
* @param brand
* the new {@link #brand}
*/
public void setBrand(Brand brand) {
this.brand = brand;
}
}

24
di-modules/dagger/src/main/java/com/baeldung/dagger/intro/Engine.java Normal file
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package com.baeldung.dagger.intro;
/**
* Engine of a {@link Car}.
*
* @author Donato Rimenti
*
*/
public class Engine {
/**
* Starts the engine.
*/
public void start() {
System.out.println("Engine started");
}
/**
* Stops the engine.
*/
public void stop() {
System.out.println("Engine stopped");
}
}

24
di-modules/dagger/src/main/java/com/baeldung/dagger/intro/VehiclesComponent.java Normal file
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package com.baeldung.dagger.intro;
import javax.inject.Singleton;
import dagger.Component;
/**
* Dagger component for building vehicles.
*
* @author Donato Rimenti
*
*/
@Singleton
@Component(modules = VehiclesModule.class)
public interface VehiclesComponent {
/**
* Builds a {@link Car}.
*
* @return a {@link Car}
*/
public Car buildCar();
}

37
di-modules/dagger/src/main/java/com/baeldung/dagger/intro/VehiclesModule.java Normal file
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package com.baeldung.dagger.intro;
import javax.inject.Singleton;
import dagger.Module;
import dagger.Provides;
/**
* Dagger module for providing vehicles components.
*
* @author Donato Rimenti
*
*/
@Module
public class VehiclesModule {
/**
* Creates an {@link Engine}.
*
* @return an {@link Engine}
*/
@Provides
public Engine provideEngine() {
return new Engine();
}
/**
* Creates a {@link Brand}.
*
* @return a {@link Brand}
*/
@Provides
@Singleton
public Brand provideBrand() {
return new Brand("Baeldung");
}
}

13
di-modules/dagger/src/main/resources/logback.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>

34
di-modules/dagger/src/test/java/com/baeldung/dagger/intro/DaggerUnitTest.java Normal file
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package com.baeldung.dagger.intro;
import org.junit.Assert;
import org.junit.Test;
/**
* Unit test for building a {@link Car} using Dagger.
*
* @author Donato Rimenti
*
*/
public class DaggerUnitTest {
/**
* Builds two {@link Car} and checks that the fields are injected correctly.
*/
@Test
public void givenGeneratedComponent_whenBuildingCar_thenDependenciesInjected() {
VehiclesComponent component = DaggerVehiclesComponent.create();
Car carOne = component.buildCar();
Car carTwo = component.buildCar();
Assert.assertNotNull(carOne);
Assert.assertNotNull(carTwo);
Assert.assertNotNull(carOne.getEngine());
Assert.assertNotNull(carTwo.getEngine());
Assert.assertNotNull(carOne.getBrand());
Assert.assertNotNull(carTwo.getBrand());
Assert.assertNotEquals(carOne.getEngine(), carTwo.getEngine());
Assert.assertEquals(carOne.getBrand(), carTwo.getBrand());
}
}

7
di-modules/flyway-cdi-extension/README.md Normal file
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## Flyway CDI Extension
This module contains articles about context and dependency injection (CDI) with Flyway
### Relevant articles
- [CDI Portable Extension and Flyway](https://www.baeldung.com/cdi-portable-extension)

58
di-modules/flyway-cdi-extension/pom.xml Normal file
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<?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>flyway-cdi-extension</artifactId>
<name>flyway-cdi-extension</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>di-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>${cdi-api.version}</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se-core</artifactId>
<version>${weld-se-core.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
<version>${flyway-core.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
<version>${tomcat-jdbc.version}</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>${javax.annotation-api.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2.version}</version>
<scope>runtime</scope>
</dependency>
</dependencies>
<properties>
<cdi-api.version>2.0.SP1</cdi-api.version>
<weld-se-core.version>3.0.5.Final</weld-se-core.version>
<flyway-core.version>5.1.4</flyway-core.version>
<tomcat-jdbc.version>8.5.33</tomcat-jdbc.version>
<javax.annotation-api.version>1.3.2</javax.annotation-api.version>
</properties>
</project>

74
di-modules/flyway-cdi-extension/src/main/java/com/baeldung/cdi/extension/FlywayExtension.java Normal file
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package com.baeldung.cdi.extension;
import org.apache.tomcat.jdbc.pool.DataSource;
import org.flywaydb.core.Flyway;
import javax.annotation.sql.DataSourceDefinition;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.literal.InjectLiteral;
import javax.enterprise.inject.spi.*;
import javax.enterprise.util.AnnotationLiteral;
/**
* Flyway is now under CDI container like:
*
* @ApplicationScoped
* @FlywayType public class Flyway{
* @Inject setDataSource(DataSource dataSource){
* //...
* }
* }
*/
public class FlywayExtension implements Extension {
DataSourceDefinition dataSourceDefinition = null;
public void registerFlywayType(@Observes BeforeBeanDiscovery bbdEvent) {
bbdEvent.addAnnotatedType(Flyway.class, Flyway.class.getName());
}
public void detectDataSourceDefinition(@Observes @WithAnnotations(DataSourceDefinition.class) ProcessAnnotatedType<?> patEvent) {
AnnotatedType at = patEvent.getAnnotatedType();
dataSourceDefinition = at.getAnnotation(DataSourceDefinition.class);
}
public void processAnnotatedType(@Observes ProcessAnnotatedType<Flyway> patEvent) {
patEvent.configureAnnotatedType()
//Add Scope
.add(ApplicationScoped.Literal.INSTANCE)
//Add Qualifier
.add(new AnnotationLiteral<FlywayType>() {
})
//Decorate setDataSource(DataSource dataSource){} with @Inject
.filterMethods(annotatedMethod -> {
return annotatedMethod.getParameters().size() == 1 &&
annotatedMethod.getParameters().get(0).getBaseType().equals(javax.sql.DataSource.class);
})
.findFirst().get().add(InjectLiteral.INSTANCE);
}
void afterBeanDiscovery(@Observes AfterBeanDiscovery abdEvent, BeanManager bm) {
abdEvent.addBean()
.types(javax.sql.DataSource.class, DataSource.class)
.qualifiers(new AnnotationLiteral<Default>() {}, new AnnotationLiteral<Any>() {})
.scope(ApplicationScoped.class)
.name(DataSource.class.getName())
.beanClass(DataSource.class)
.createWith(creationalContext -> {
DataSource instance = new DataSource();
instance.setUrl(dataSourceDefinition.url());
instance.setDriverClassName(dataSourceDefinition.className());
return instance;
});
}
void runFlywayMigration(@Observes AfterDeploymentValidation adv, BeanManager manager) {
Flyway flyway = manager.createInstance().select(Flyway.class, new AnnotationLiteral<FlywayType>() {}).get();
flyway.migrate();
}
}

14
di-modules/flyway-cdi-extension/src/main/java/com/baeldung/cdi/extension/FlywayType.java Normal file
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package com.baeldung.cdi.extension;
import javax.inject.Qualifier;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.*;
@Retention(RetentionPolicy.RUNTIME)
@Target({FIELD, METHOD, PARAMETER, TYPE})
@Qualifier
public @interface FlywayType {
}

16
di-modules/flyway-cdi-extension/src/main/java/com/baeldung/cdi/extension/MainApp.java Normal file
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package com.baeldung.cdi.extension;
import javax.annotation.sql.DataSourceDefinition;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.se.SeContainer;
import javax.enterprise.inject.se.SeContainerInitializer;
@ApplicationScoped
@DataSourceDefinition(name = "ds", className = "org.h2.Driver", url = "jdbc:h2:mem:testdb")
public class MainApp {
public static void main(String[] args) {
SeContainerInitializer initializer = SeContainerInitializer.newInstance();
try (SeContainer container = initializer.initialize()) {
}
}
}

6
di-modules/flyway-cdi-extension/src/main/resources/META-INF/beans.xml Normal file
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<beans version="2.0" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/beans_2_0.xsd"
bean-discovery-mode="annotated">
</beans>

2
di-modules/flyway-cdi-extension/src/main/resources/META-INF/services/javax.enterprise.inject.spi.Extension Normal file
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com.baeldung.cdi.extension.FlywayExtension

4
di-modules/flyway-cdi-extension/src/main/resources/db/migration/V1__Create_person_table.sql Normal file
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create table PERSON (
ID int not null,
NAME varchar(100) not null
);

3
di-modules/flyway-cdi-extension/src/main/resources/db/migration/V2__Add_people.sql Normal file
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insert into PERSON (ID, NAME) values (1, 'Axel');
insert into PERSON (ID, NAME) values (2, 'Mr. Foo');
insert into PERSON (ID, NAME) values (3, 'Ms. Bar');

8
di-modules/guice/README.md Normal file
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## Google Guice
This module contains articles about Google Guice
### Relevant Articles
- [Guide to Google Guice](https://www.baeldung.com/guice)
- [Guice vs Spring – Dependency Injection](https://www.baeldung.com/guice-spring-dependency-injection)

29
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.examples.guice</groupId>
<artifactId>guice</artifactId>
<name>guice</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>di-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.google.inject</groupId>
<artifactId>guice</artifactId>
<version>${guice.version}</version>
</dependency>
</dependencies>
<properties>
<guice.version>4.1.0</guice.version>
</properties>
</project>

32
di-modules/guice/src/main/java/com/baeldung/examples/RunGuice.java Normal file
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package com.baeldung.examples;
import com.baeldung.examples.guice.Communication;
import com.baeldung.examples.guice.binding.AOPModule;
import com.baeldung.examples.guice.modules.BasicModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import java.util.Scanner;
/**
*
* @author baeldung
*/
public class RunGuice {
public static void main(String[] args) {
Injector injector = Guice.createInjector(new BasicModule(), new AOPModule());
Communication comms = injector.getInstance(Communication.class);
Scanner scanner = new Scanner(System.in);
while (true) {
String input = scanner.nextLine();
if (input.equalsIgnoreCase("q")) {
System.exit(0);
} else {
comms.sendMessage(input);
}
}
}
}

24
di-modules/guice/src/main/java/com/baeldung/examples/common/Account.java Normal file
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package com.baeldung.examples.common;
public class Account {
private String accountNumber;
private String type;
public String getAccountNumber() {
return accountNumber;
}
public void setAccountNumber(String accountNumber) {
this.accountNumber = accountNumber;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/AccountService.java Normal file
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package com.baeldung.examples.common;
public interface AccountService {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/AccountServiceImpl.java Normal file
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package com.baeldung.examples.common;
public class AccountServiceImpl implements AccountService {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/AudioBookService.java Normal file
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package com.baeldung.examples.common;
public interface AudioBookService {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/AudioBookServiceImpl.java Normal file
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package com.baeldung.examples.common;
public class AudioBookServiceImpl implements AudioBookService {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/AuthorService.java Normal file
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package com.baeldung.examples.common;
public interface AuthorService {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/AuthorServiceImpl.java Normal file
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package com.baeldung.examples.common;
public class AuthorServiceImpl implements AuthorService {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/BookService.java Normal file
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package com.baeldung.examples.common;
public interface BookService {
}

7
di-modules/guice/src/main/java/com/baeldung/examples/common/BookServiceImpl.java Normal file
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package com.baeldung.examples.common;
public class BookServiceImpl implements BookService {
private AuthorService authorService;
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/PersonDao.java Normal file
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@@ -0,0 +1,5 @@
package com.baeldung.examples.common;
public interface PersonDao {
}

5
di-modules/guice/src/main/java/com/baeldung/examples/common/PersonDaoImpl.java Normal file
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package com.baeldung.examples.common;
public class PersonDaoImpl implements PersonDao {
}

40
di-modules/guice/src/main/java/com/baeldung/examples/guice/Communication.java Normal file
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package com.baeldung.examples.guice;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import java.util.Date;
import java.util.LinkedList;
import java.util.Queue;
import java.util.logging.Logger;
/**
*
* @author baeldung
*/
public class Communication {
final Date start = new Date();
@Inject
private Logger logger;
@Inject
private DefaultCommunicator communicator;
public Communication(Boolean keepRecords) {
if (keepRecords) {
System.out.println("keeping records");
}
}
public boolean sendMessage(String message) {
return communicator.sendMessage(message);
}
public DefaultCommunicator getCommunicator() {
return this.communicator;
}
}

12
di-modules/guice/src/main/java/com/baeldung/examples/guice/CommunicationMode.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.guice.constant.CommunicationModel;
public interface CommunicationMode {
public CommunicationModel getMode();
public boolean sendMessage(String message);
}

51
di-modules/guice/src/main/java/com/baeldung/examples/guice/DefaultCommunicator.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.guice.marker.Communicator;
import com.google.inject.Inject;
import com.google.inject.name.Named;
/**
*
* @author baeldung
*/
public class DefaultCommunicator implements Communicator {
private CommunicationMode defaultCommsMode;
@Inject
@Named("SMSComms")
CommunicationMode smsCommsMode;
@Inject
@Named("EmailComms")
CommunicationMode emailCommsMode;
@Inject
@Named("IMComms")
CommunicationMode imCommsMode;
protected DefaultCommunicator(CommunicationMode defaultComms) {
this.defaultCommsMode = defaultComms;
}
public DefaultCommunicator() {
}
public boolean sendMessage(String message) {
boolean sent = false;
if (defaultCommsMode != null) {
sent = sendMessageByDefault(message);
} else {
sent = smsCommsMode.sendMessage(message);
}
return sent;
}
private boolean sendMessageByDefault(String message) {
boolean sent = false;
if (message != null && !message.trim().equals("")) {
return defaultCommsMode.sendMessage(message);
}
return sent;
}
}

24
di-modules/guice/src/main/java/com/baeldung/examples/guice/EmailCommunicationMode.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.guice.aop.MessageSentLoggable;
import com.baeldung.examples.guice.constant.CommunicationModel;
/**
*
* @author baeldung
*/
public class EmailCommunicationMode implements CommunicationMode {
@Override
public CommunicationModel getMode() {
return CommunicationModel.EMAIL;
}
@Override
@MessageSentLoggable
public boolean sendMessage(String Message) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}

4
di-modules/guice/src/main/java/com/baeldung/examples/guice/Foo.java Normal file
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package com.baeldung.examples.guice;
public class Foo {
}

9
di-modules/guice/src/main/java/com/baeldung/examples/guice/FooProcessor.java Normal file
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package com.baeldung.examples.guice;
import com.google.inject.Inject;
public class FooProcessor {
@Inject
private Foo foo;
}

19
di-modules/guice/src/main/java/com/baeldung/examples/guice/GuicePersonService.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.common.PersonDao;
import com.google.inject.Inject;
public class GuicePersonService {
@Inject
private PersonDao personDao;
public PersonDao getPersonDao() {
return personDao;
}
public void setPersonDao(PersonDao personDao) {
this.personDao = personDao;
}
}

19
di-modules/guice/src/main/java/com/baeldung/examples/guice/GuiceUserService.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.common.AccountService;
import com.google.inject.Inject;
public class GuiceUserService {
@Inject
private AccountService accountService;
public AccountService getAccountService() {
return accountService;
}
public void setAccountService(AccountService accountService) {
this.accountService = accountService;
}
}

30
di-modules/guice/src/main/java/com/baeldung/examples/guice/IMCommunicationMode.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.guice.aop.MessageSentLoggable;
import com.baeldung.examples.guice.constant.CommunicationModel;
import com.google.inject.Inject;
import java.util.logging.Logger;
/**
*
* @author baeldung
*/
public class IMCommunicationMode implements CommunicationMode {
@Inject
private Logger logger;
@Override
public CommunicationModel getMode() {
return CommunicationModel.IM;
}
@Override
@MessageSentLoggable
public boolean sendMessage(String message) {
logger.info("IM Message Sent");
return true;
}
}

24
di-modules/guice/src/main/java/com/baeldung/examples/guice/Person.java Normal file
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package com.baeldung.examples.guice;
public class Person {
private String firstName;
private String lastName;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}

30
di-modules/guice/src/main/java/com/baeldung/examples/guice/SMSCommunicationMode.java Normal file
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package com.baeldung.examples.guice;
import com.baeldung.examples.guice.aop.MessageSentLoggable;
import com.baeldung.examples.guice.constant.CommunicationModel;
import com.google.inject.Inject;
import java.util.logging.Logger;
/**
*
* @author baeldung
*/
public class SMSCommunicationMode implements CommunicationMode {
@Inject
private Logger logger;
@Override
public CommunicationModel getMode() {
return CommunicationModel.SMS;
}
@Override
@MessageSentLoggable
public boolean sendMessage(String message) {
logger.info("SMS message sent");
return true;
}
}

24
di-modules/guice/src/main/java/com/baeldung/examples/guice/aop/MessageLogger.java Normal file
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package com.baeldung.examples.guice.aop;
import com.google.inject.Inject;
import java.util.logging.Logger;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
/**
*
* @author baeldung
*/
public class MessageLogger implements MethodInterceptor {
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
Object[] objectArray = invocation.getArguments();
int i = 0;
for (Object object : objectArray) {
Logger.getAnonymousLogger().info("Sending message: " + object.toString());
}
return invocation.proceed();
}
}

17
di-modules/guice/src/main/java/com/baeldung/examples/guice/aop/MessageSentLoggable.java Normal file
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package com.baeldung.examples.guice.aop;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
*
* @author baeldung
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface MessageSentLoggable {
}

23
di-modules/guice/src/main/java/com/baeldung/examples/guice/binding/AOPModule.java Normal file
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package com.baeldung.examples.guice.binding;
import com.baeldung.examples.guice.aop.MessageLogger;
import com.baeldung.examples.guice.aop.MessageSentLoggable;
import com.google.inject.AbstractModule;
import com.google.inject.matcher.Matchers;
/**
*
* @author baeldung
*/
public class AOPModule extends AbstractModule {
@Override
protected void configure() {
bindInterceptor(Matchers.any(),
Matchers.annotatedWith(MessageSentLoggable.class),
new MessageLogger()
);
}
}

37
di-modules/guice/src/main/java/com/baeldung/examples/guice/binding/BasicModule.java Normal file
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package com.baeldung.examples.guice.binding;
import com.baeldung.examples.guice.Communication;
import com.baeldung.examples.guice.CommunicationMode;
import com.baeldung.examples.guice.DefaultCommunicator;
import com.baeldung.examples.guice.EmailCommunicationMode;
import com.baeldung.examples.guice.IMCommunicationMode;
import com.baeldung.examples.guice.SMSCommunicationMode;
import com.google.inject.AbstractModule;
import com.google.inject.name.Names;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author baeldung
*/
public class BasicModule extends AbstractModule {
@Override
protected void configure() {
try {
bind(Communication.class).toConstructor(Communication.class.getConstructor(Boolean.TYPE));
} catch (NoSuchMethodException ex) {
Logger.getLogger(BasicModule.class.getName()).log(Level.SEVERE, null, ex);
} catch (SecurityException ex) {
Logger.getLogger(BasicModule.class.getName()).log(Level.SEVERE, null, ex);
}
bind(DefaultCommunicator.class).annotatedWith(Names.named("AnotherCommunicator")).to(DefaultCommunicator.class).asEagerSingleton();
bind(CommunicationMode.class).annotatedWith(Names.named("IMComms")).to(IMCommunicationMode.class);
bind(CommunicationMode.class).annotatedWith(Names.named("EmailComms")).to(EmailCommunicationMode.class);
bind(CommunicationMode.class).annotatedWith(Names.named("SMSComms")).to(SMSCommunicationMode.class);
}
}

17
di-modules/guice/src/main/java/com/baeldung/examples/guice/constant/CommunicationModel.java Normal file
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package com.baeldung.examples.guice.constant;
/**
*
* @author baeldung
*/
public enum CommunicationModel {
EMAIL("Email"), SMS("SMS"), IM("IM"), PHONE("Phone");
final String name;
CommunicationModel(String name) {
this.name = name;
}
}

14
di-modules/guice/src/main/java/com/baeldung/examples/guice/marker/Communicator.java Normal file
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/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package com.baeldung.examples.guice.marker;
/**
*
* @author Tayo
*/
public interface Communicator {
}

38
di-modules/guice/src/main/java/com/baeldung/examples/guice/modules/BasicModule.java Normal file
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package com.baeldung.examples.guice.modules;
import com.baeldung.examples.guice.Communication;
import com.baeldung.examples.guice.CommunicationMode;
import com.baeldung.examples.guice.DefaultCommunicator;
import com.baeldung.examples.guice.EmailCommunicationMode;
import com.baeldung.examples.guice.IMCommunicationMode;
import com.baeldung.examples.guice.SMSCommunicationMode;
import com.google.inject.AbstractModule;
import com.google.inject.name.Names;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author baeldung
*/
public class BasicModule extends AbstractModule {
@Override
protected void configure() {
try {
bind(Communication.class).toConstructor(Communication.class.getConstructor(Boolean.class));
bind(Boolean.class).toInstance(true);
} catch (NoSuchMethodException ex) {
Logger.getLogger(com.baeldung.examples.guice.binding.BasicModule.class.getName()).log(Level.SEVERE, null, ex);
} catch (SecurityException ex) {
Logger.getLogger(com.baeldung.examples.guice.binding.BasicModule.class.getName()).log(Level.SEVERE, null, ex);
}
bind(DefaultCommunicator.class).annotatedWith(Names.named("AnotherCommunicator")).to(DefaultCommunicator.class).asEagerSingleton();
bind(CommunicationMode.class).annotatedWith(Names.named("IMComms")).to(IMCommunicationMode.class);
bind(CommunicationMode.class).annotatedWith(Names.named("EmailComms")).to(EmailCommunicationMode.class);
bind(CommunicationMode.class).annotatedWith(Names.named("SMSComms")).to(SMSCommunicationMode.class);
}
}

50
di-modules/guice/src/main/java/com/baeldung/examples/guice/modules/GuiceModule.java Normal file
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package com.baeldung.examples.guice.modules;
import com.baeldung.examples.common.AccountService;
import com.baeldung.examples.common.AccountServiceImpl;
import com.baeldung.examples.common.BookService;
import com.baeldung.examples.common.BookServiceImpl;
import com.baeldung.examples.common.PersonDao;
import com.baeldung.examples.common.PersonDaoImpl;
import com.baeldung.examples.guice.Foo;
import com.baeldung.examples.guice.Person;
import com.google.inject.AbstractModule;
import com.google.inject.Provider;
import com.google.inject.Provides;
public class GuiceModule extends AbstractModule {
@Override
protected void configure() {
try {
bind(AccountService.class).to(AccountServiceImpl.class);
bind(Person.class).toConstructor(Person.class.getConstructor());
// bind(Person.class).toProvider(new Provider<Person>() {
// public Person get() {
// Person p = new Person();
// return p;
// }
// });
bind(Foo.class).toProvider(new Provider<Foo>() {
public Foo get() {
return new Foo();
}
});
bind(PersonDao.class).to(PersonDaoImpl.class);
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Provides
public BookService bookServiceGenerator() {
return new BookServiceImpl();
}
}

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di-modules/guice/src/main/resources/logback.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>

61
di-modules/guice/src/test/java/com/baeldung/examples/GuiceUnitTest.java Normal file
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package com.baeldung.examples;
import static org.junit.Assert.assertNotNull;
import org.junit.Test;
import com.baeldung.examples.common.BookService;
import com.baeldung.examples.guice.FooProcessor;
import com.baeldung.examples.guice.GuicePersonService;
import com.baeldung.examples.guice.GuiceUserService;
import com.baeldung.examples.guice.Person;
import com.baeldung.examples.guice.modules.GuiceModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
public class GuiceUnitTest {
@Test
public void givenAccountServiceInjectedInGuiceUserService_WhenGetAccountServiceInvoked_ThenReturnValueIsNotNull() {
Injector injector = Guice.createInjector(new GuiceModule());
GuiceUserService guiceUserService = injector.getInstance(GuiceUserService.class);
assertNotNull(guiceUserService.getAccountService());
}
@Test
public void givenBookServiceIsRegisteredInModule_WhenBookServiceIsInjected_ThenReturnValueIsNotNull() {
Injector injector = Guice.createInjector(new GuiceModule());
BookService bookService = injector.getInstance(BookService.class);
assertNotNull(bookService);
}
@Test
public void givenMultipleBindingsForPerson_WhenPersonIsInjected_ThenTestFailsByProvisionException() {
Injector injector = Guice.createInjector(new GuiceModule());
Person person = injector.getInstance(Person.class);
assertNotNull(person);
}
@Test
public void givenFooInjectedToFooProcessorAsOptionalDependency_WhenFooProcessorIsRetrievedFromContext_ThenCreationExceptionIsNotThrown() {
Injector injector = Guice.createInjector(new GuiceModule());
FooProcessor fooProcessor = injector.getInstance(FooProcessor.class);
assertNotNull(fooProcessor);
}
@Test
public void givenGuicePersonServiceConstructorAnnotatedByInject_WhenGuicePersonServiceIsInjected_ThenInstanceWillBeCreatedFromTheConstructor() {
Injector injector = Guice.createInjector(new GuiceModule());
GuicePersonService personService = injector.getInstance(GuicePersonService.class);
assertNotNull(personService);
}
@Test
public void givenPersonDaoInjectedToGuicePersonServiceBySetterInjection_WhenGuicePersonServiceIsInjected_ThenPersonDaoInitializedByTheSetter() {
Injector injector = Guice.createInjector(new GuiceModule());
GuicePersonService personService = injector.getInstance(GuicePersonService.class);
assertNotNull(personService);
assertNotNull(personService.getPersonDao());
}
}

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di-modules/pom.xml Normal file
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<?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>di-modules</artifactId>
<name>di-modules</name>
<packaging>pom</packaging>
<parent>
<artifactId>parent-modules</artifactId>
<groupId>com.baeldung</groupId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<modules>
<module>cdi</module>
<module>dagger</module>
<module>flyway-cdi-extension</module>
<module>guice</module>
</modules>
</project>