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Dagger Sample
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‎dagger/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.fd</groupId>
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<artifactId>tryout-dagger</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<java-version>1.8</java-version>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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<maven.plugins.maven-shade-plugin.version>2.4.3</maven.plugins.maven-shade-plugin.version>
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<maven.plugins.maven-compiler-plugin.version>3.6.1</maven.plugins.maven-compiler-plugin.version>
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<aws-lambda-java-core.version>1.2.0</aws-lambda-java-core.version>
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<lombok.version>1.18.4</lombok.version>
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<dagger.version>2.19</dagger.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.google.dagger</groupId>
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<artifactId>dagger</artifactId>
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<version>${dagger.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${maven.plugins.maven-compiler-plugin.version}</version>
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<configuration>
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<annotationProcessorPaths>
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<path>
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<groupId>com.google.dagger</groupId>
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<artifactId>dagger-compiler</artifactId>
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<version>${dagger.version}</version>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎dagger/src/main/java/com/fd/tryout/dagger/App.java‎

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package com.fd.tryout.dagger;
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import com.fd.tryout.dagger.config.DaggerIoCConfig;
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import com.fd.tryout.dagger.config.IoCConfig;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:15 PM
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*/
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public class App {
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public static void main(String[] args) {
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IoCConfig iocConfig = DaggerIoCConfig.create();
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MyService myService = iocConfig.myService();
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myService.print();
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MyService2 myService2 = iocConfig.myService2();
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myService2.print2();
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}
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}

‎dagger/src/main/java/com/fd/tryout/dagger/MyBusinessLogic.java‎

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package com.fd.tryout.dagger;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:21 PM
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*/
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public class MyBusinessLogic {
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public void print() {
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System.out.println("Hello World! from Dagger...");
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}
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}

‎dagger/src/main/java/com/fd/tryout/dagger/MyService.java‎

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package com.fd.tryout.dagger;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:17 PM
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*/
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public interface MyService {
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void print();
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}

‎dagger/src/main/java/com/fd/tryout/dagger/MyService2.java‎

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package com.fd.tryout.dagger;
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import javax.inject.Inject;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:32 PM
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*/
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public class MyService2 {
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@Inject
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public MyService2() {
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}
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public void print2() {
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System.out.println("Hello World 2! from Dagger 2...");
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}
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}

‎dagger/src/main/java/com/fd/tryout/dagger/MyServiceImpl.java‎

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package com.fd.tryout.dagger;
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import javax.inject.Inject;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:17 PM
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*/
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public class MyServiceImpl implements MyService {
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MyBusinessLogic businessLogic;
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public MyServiceImpl(MyBusinessLogic businessLogic) {
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this.businessLogic = businessLogic;
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}
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@Override
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public void print() {
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this.businessLogic.print();
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}
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}

‎dagger/src/main/java/com/fd/tryout/dagger/config/IoCConfig.java‎

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package com.fd.tryout.dagger.config;
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import com.fd.tryout.dagger.MyService;
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import com.fd.tryout.dagger.MyService2;
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import dagger.Component;
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import javax.inject.Singleton;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:15 PM
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*/
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@Singleton
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@Component(modules = SampleDaggerModule.class)
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public interface IoCConfig {
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MyService myService();
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MyService2 myService2();
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}

‎dagger/src/main/java/com/fd/tryout/dagger/config/SampleDaggerModule.java‎

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package com.fd.tryout.dagger.config;
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import com.fd.tryout.dagger.MyBusinessLogic;
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import com.fd.tryout.dagger.MyService;
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import com.fd.tryout.dagger.MyServiceImpl;
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import dagger.Module;
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import dagger.Provides;
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import javax.inject.Singleton;
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/**
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* @author fdanismaz
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* date: 11/11/18 7:17 PM
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*/
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@Module
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public class SampleDaggerModule {
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@Provides
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@Singleton
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public static MyService provideMyService() {
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return new MyServiceImpl(new MyBusinessLogic());
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}
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}

‎spring-batch/src/main/java/com/fd/tryout/springbatch/config/Config.java‎

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public class Config {
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@Autowired
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public JobBuilderFactory jobBuilderFactory;
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private JobBuilderFactory jobBuilderFactory;
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@Autowired
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public StepBuilderFactory stepBuilderFactory;
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private StepBuilderFactory stepBuilderFactory;
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@Autowired
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private Step toUpperCaseConverter;
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}
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@Bean
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public Step toUpperCaseConverter(PersonStreamWriter writer) {
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public Step toUpperCaseConverter() {
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return this.stepBuilderFactory.get("toUpperCase")
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.<Person, Person>chunk(10)
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.reader(this.reader())

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