BAEL-3091: The Prototype Pattern in Java (changed code based on valid comments from a reader)

spring-cloud-data-flow/batch-job/README.MD

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+### Relevant Articles:
+- [Batch Processing with Spring Cloud Data Flow](http://www.baeldung.com/spring-cloud-data-flow-batch-processing)
+

spring-cloud-data-flow/batch-job/pom.xml

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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>org.baeldung.spring.cloud</groupId>
+    <artifactId>batch-job</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>batch-job</name>
+    <description>Demo project for Spring Boot</description>
+    <packaging>jar</packaging>
+
+    <parent>
+        <artifactId>parent-boot-1</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-1</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-task-starter</artifactId>
+            <version>${spring-cloud-task-starter.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-batch</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>Brixton.SR5</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <properties>
+        <spring-cloud-task-starter.version>1.0.3.RELEASE</spring-cloud-task-starter.version>
+    </properties>
+
+</project>

spring-cloud-data-flow/batch-job/src/main/java/org/baeldung/spring/cloud/BatchJobApplication.java

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+package org.baeldung.spring.cloud;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.task.configuration.EnableTask;
+
+@EnableTask
+@SpringBootApplication
+public class BatchJobApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(BatchJobApplication.class, args);
+    }
+}

spring-cloud-data-flow/batch-job/src/main/java/org/baeldung/spring/cloud/JobConfiguration.java

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+package org.baeldung.spring.cloud;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.StepContribution;
+import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
+import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
+import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
+import org.springframework.batch.core.scope.context.ChunkContext;
+import org.springframework.batch.core.step.tasklet.Tasklet;
+import org.springframework.batch.repeat.RepeatStatus;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@EnableBatchProcessing
+public class JobConfiguration {
+
+    private static final Log logger = LogFactory.getLog(JobConfiguration.class);
+
+    @Autowired
+    public JobBuilderFactory jobBuilderFactory;
+
+    @Autowired
+    public StepBuilderFactory stepBuilderFactory;
+
+    @Bean
+    public Job job() {
+        return jobBuilderFactory.get("job").start(stepBuilderFactory.get("jobStep1").tasklet(new Tasklet() {
+            @Override
+            public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
+                logger.info("Job was run");
+                return RepeatStatus.FINISHED;
+            }
+        }).build()).build();
+    }
+}

spring-cloud-data-flow/batch-job/src/main/resources/logback.xml

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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>

spring-cloud-data-flow/batch-job/src/test/java/org/baeldung/SpringContextIntegrationTest.java

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+package org.baeldung;
+
+import org.baeldung.spring.cloud.JobConfiguration;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@ContextConfiguration(classes = JobConfiguration.class)
+public class SpringContextIntegrationTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud-data-flow/batch-job/src/test/java/org/baeldung/SpringContextTest.java

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+package org.baeldung;
+
+import org.baeldung.spring.cloud.JobConfiguration;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@ContextConfiguration(classes = JobConfiguration.class)
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud-data-flow/batch-job/src/test/java/org/baeldung/spring/cloud/BatchJobApplicationIntegrationTest.java

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+package org.baeldung.spring.cloud;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@ContextConfiguration(classes = JobConfiguration.class)
+public class BatchJobApplicationIntegrationTest {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}