Package org.springframework.batch.core.configuration.annotation

Source Code of org.springframework.batch.core.configuration.annotation.JobBuilderConfigurationTests$TestConfigurer

/*
* Copyright 2006-2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package org.springframework.batch.core.configuration.annotation;

import static org.junit.Assert.assertEquals;

import javax.sql.DataSource;

import org.junit.Test;
import org.springframework.batch.core.BatchStatus;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.job.builder.SimpleJobBuilder;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.AbstractStep;
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.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
* @author Dave Syer
*
*/
public class JobBuilderConfigurationTests {

  public static boolean fail = false;

  private JobExecution execution;

  @Test
  public void testVanillaBatchConfiguration() throws Exception {
    testJob(BatchStatus.COMPLETED, 2, TestConfiguration.class);
  }

  @Test
  public void testConfigurerAsConfiguration() throws Exception {
    testJob(BatchStatus.COMPLETED, 1, TestConfigurer.class);
  }

  @Test
  public void testConfigurerAsBean() throws Exception {
    testJob(BatchStatus.COMPLETED, 1, BeansConfigurer.class);
  }

  @Test
  public void testTwoConfigurations() throws Exception {
    testJob("testJob", BatchStatus.COMPLETED, 2, TestConfiguration.class, AnotherConfiguration.class);
  }

  @Test
  public void testTwoConfigurationsAndConfigurer() throws Exception {
    testJob("testJob", BatchStatus.COMPLETED, 2, TestConfiguration.class, TestConfigurer.class);
  }

  @Test
  public void testTwoConfigurationsAndBeansConfigurer() throws Exception {
    testJob("testJob", BatchStatus.COMPLETED, 2, TestConfiguration.class, BeansConfigurer.class);
  }

  private void testJob(BatchStatus status, int stepExecutionCount, Class<?> config) throws Exception {
    testJob(null, status, stepExecutionCount, config);
  }

  private void testJob(String jobName, BatchStatus status, int stepExecutionCount, Class<?>... config)
      throws Exception {

    Class<?>[] configs = new Class<?>[config.length + 1];
    System.arraycopy(config, 0, configs, 1, config.length);
    configs[0] = DataSourceConfiguration.class;
    AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(configs);
    Job job = jobName == null ? context.getBean(Job.class) : context.getBean(jobName, Job.class);
    JobLauncher jobLauncher = context.getBean(JobLauncher.class);
    execution = jobLauncher
        .run(job, new JobParametersBuilder().addLong("run.id", (long) (Math.random() * Long.MAX_VALUE))
            .toJobParameters());
    assertEquals(status, execution.getStatus());
    assertEquals(stepExecutionCount, execution.getStepExecutions().size());
    context.close();

  }

  @Configuration
  @EnableBatchProcessing
  public static class TestConfiguration {

    @Autowired
    private JobBuilderFactory jobs;

    @Autowired
    private StepBuilderFactory steps;

    @Bean
    public Job testJob() throws Exception {
      SimpleJobBuilder builder = jobs.get("test").start(step1()).next(step2());
      return builder.build();
    }

    @Bean
    protected Step step1() throws Exception {
      return steps.get("step1").tasklet(tasklet()).build();
    }

    @Bean
    protected Step step2() throws Exception {
      return steps.get("step2").tasklet(tasklet()).build();
    }

    @Bean
    protected Tasklet tasklet() {
      return new Tasklet() {
        @Override
        public RepeatStatus execute(StepContribution contribution, ChunkContext context) throws Exception {
          if (fail) {
            throw new RuntimeException("Planned!");
          }
          return RepeatStatus.FINISHED;
        }
      };
    }
  }

  @Configuration
  @EnableBatchProcessing
  public static class AnotherConfiguration {

    @Autowired
    private JobBuilderFactory jobs;

    @Autowired
    private StepBuilderFactory steps;

    @Autowired
    private Tasklet tasklet;

    @Bean
    public Job anotherJob() throws Exception {
      SimpleJobBuilder builder = jobs.get("another").start(step3());
      return builder.build();
    }

    @Bean
    protected Step step3() throws Exception {
      return steps.get("step3").tasklet(tasklet).build();
    }

  }

  @Configuration
  @EnableBatchProcessing
  public static class TestConfigurer extends DefaultBatchConfigurer {

    @Autowired
    private SimpleBatchConfiguration jobs;

    @Bean
    public Job testConfigererJob() throws Exception {
      SimpleJobBuilder builder = jobs.jobBuilders().get("configurer").start(step1());
      return builder.build();
    }

    @Bean
    protected Step step1() throws Exception {
      AbstractStep step = new AbstractStep("step1") {
        @Override
        protected void doExecute(StepExecution stepExecution) throws Exception {
          stepExecution.setExitStatus(ExitStatus.COMPLETED);
          stepExecution.setStatus(BatchStatus.COMPLETED);
        }
      };
      step.setJobRepository(getJobRepository());
      return step;
    }

  }

  @Configuration
  @EnableBatchProcessing
  public static class BeansConfigurer {

    @Autowired
    private JobBuilderFactory jobs;

    @Autowired
    private StepBuilderFactory steps;

    @Bean
    public Job beansConfigurerJob() throws Exception {
      SimpleJobBuilder builder = jobs.get("beans").start(step1());
      return builder.build();
    }

    @Bean
    protected Step step1() throws Exception {
      return steps.get("step1").tasklet(new Tasklet() {

        @Override
        public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
          return null;
        }
      }).build();
    }

    @Bean
    @Autowired
    protected BatchConfigurer configurer(DataSource dataSource) {
      return new DefaultBatchConfigurer(dataSource);
    }

  }

}
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