92 lines
3.1 KiB
Java
92 lines
3.1 KiB
Java
/*
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* Copyright 2021-2021 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package configuration;
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import java.util.Arrays;
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import org.springframework.batch.core.Job;
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import org.springframework.batch.core.Step;
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import org.springframework.batch.core.StepContribution;
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import org.springframework.batch.core.job.builder.JobBuilder;
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import org.springframework.batch.core.repository.JobRepository;
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import org.springframework.batch.core.scope.context.ChunkContext;
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import org.springframework.batch.core.step.builder.StepBuilder;
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import org.springframework.batch.core.step.tasklet.Tasklet;
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import org.springframework.batch.item.Chunk;
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import org.springframework.batch.item.ItemProcessor;
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import org.springframework.batch.item.ItemWriter;
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import org.springframework.batch.item.support.ListItemReader;
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import org.springframework.batch.repeat.RepeatStatus;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.transaction.PlatformTransactionManager;
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/**
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* @author Glenn Renfro
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*/
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@Configuration
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@ConditionalOnProperty(prefix = "spring.cloud.task.test", name = "enable-job-configuration", havingValue = "true")
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public class JobConfiguration {
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private static final int DEFAULT_CHUNK_COUNT = 3;
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@Autowired
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private JobRepository jobRepository;
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@Autowired
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private PlatformTransactionManager transactionManager;
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@Bean
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public Job job() {
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return new JobBuilder("job", this.jobRepository).start(step1()).next(step2()).build();
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}
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@Bean
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public Step step1() {
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return new StepBuilder("step1", this.jobRepository).tasklet(new Tasklet() {
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@Override
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public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
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System.out.println("Executed");
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return RepeatStatus.FINISHED;
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}
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}, transactionManager).build();
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}
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@Bean
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public Step step2() {
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return new StepBuilder("step2", this.jobRepository)
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.<String, String>chunk(DEFAULT_CHUNK_COUNT, transactionManager)
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.reader(new ListItemReader<>(Arrays.asList("1", "2", "3", "4", "5", "6")))
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.processor(new ItemProcessor<String, String>() {
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@Override
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public String process(String item) throws Exception {
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return String.valueOf(Integer.parseInt(item) * -1);
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}
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}).writer(new ItemWriter<String>() {
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@Override
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public void write(Chunk<? extends String> items) throws Exception {
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for (Object item : items) {
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System.out.println(">> " + item);
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}
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}
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}).build();
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}
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}
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