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DefaultBatchConfigurer.java
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DefaultBatchConfigurer.java
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/*
* Copyright 2012-2022 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
*
* https://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 jakarta.annotation.PostConstruct;
import javax.sql.DataSource;
import org.springframework.batch.core.configuration.BatchConfigurationException;
import org.springframework.batch.core.explore.JobExplorer;
import org.springframework.batch.core.explore.support.JobExplorerFactoryBean;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.launch.support.TaskExecutorJobLauncher;
import org.springframework.batch.core.repository.JobRepository;
import org.springframework.batch.core.repository.support.JobRepositoryFactoryBean;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.stereotype.Component;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.util.Assert;
/**
* Default implementation of the {@link BatchConfigurer}.
*/
@Component
public class DefaultBatchConfigurer implements BatchConfigurer {
private DataSource dataSource;
private PlatformTransactionManager transactionManager;
private JobRepository jobRepository;
private JobLauncher jobLauncher;
private JobExplorer jobExplorer;
/**
* Create a new {@link DefaultBatchConfigurer} with the passed datasource. This
* constructor will configure a default {@link DataSourceTransactionManager}.
* @param dataSource to use for the job repository and job explorer
*/
public DefaultBatchConfigurer(DataSource dataSource) {
this(dataSource, new DataSourceTransactionManager(dataSource));
}
/**
* Create a new {@link DefaultBatchConfigurer} with the passed datasource and
* transaction manager.
* @param dataSource to use for the job repository and job explorer
* @param transactionManager to use for the job repository
*/
public DefaultBatchConfigurer(DataSource dataSource, PlatformTransactionManager transactionManager) {
Assert.notNull(dataSource, "DataSource must not be null");
Assert.notNull(transactionManager, "transactionManager must not be null");
this.dataSource = dataSource;
this.transactionManager = transactionManager;
}
/**
* Sets the dataSource.
* @param dataSource The data source to use. Must not be {@code null}.
*/
public void setDataSource(DataSource dataSource) {
Assert.notNull(dataSource, "DataSource must not be null");
this.dataSource = dataSource;
}
/**
* @return The {@link DataSource} used by the {@link DefaultBatchConfigurer}.
*/
public DataSource getDataSource() {
return this.dataSource;
}
@Override
public JobRepository getJobRepository() {
return this.jobRepository;
}
@Override
public JobLauncher getJobLauncher() {
return this.jobLauncher;
}
@Override
public JobExplorer getJobExplorer() {
return this.jobExplorer;
}
@Override
public PlatformTransactionManager getTransactionManager() {
return this.transactionManager;
}
/**
* Initialize the {@link DefaultBatchConfigurer} with the {@link JobRepository},
* {@link JobExplorer}, and {@link JobLauncher}.
*/
@PostConstruct
public void initialize() {
try {
this.jobRepository = createJobRepository();
this.jobExplorer = createJobExplorer();
this.jobLauncher = createJobLauncher();
}
catch (Exception e) {
throw new BatchConfigurationException(e);
}
}
/**
* @return An instance of {@link JobLauncher}.
* @throws Exception The {@link Exception} that is thrown if an error occurs while
* creating the {@link JobLauncher}.
*/
protected JobLauncher createJobLauncher() throws Exception {
TaskExecutorJobLauncher jobLauncher = new TaskExecutorJobLauncher();
jobLauncher.setJobRepository(this.jobRepository);
jobLauncher.afterPropertiesSet();
return jobLauncher;
}
/**
* @return An instance of {@link JobRepository}.
* @throws Exception The {@link Exception} that is thrown if an error occurs while
* creating the {@link JobRepository}.
*/
protected JobRepository createJobRepository() throws Exception {
JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
factory.setDataSource(getDataSource());
factory.setTransactionManager(getTransactionManager());
factory.afterPropertiesSet();
return factory.getObject();
}
/**
* @return An instance of {@link JobExplorer}.
* @throws Exception The {@link Exception} that is thrown if an error occurs while
* creating the {@link JobExplorer}.
*/
protected JobExplorer createJobExplorer() throws Exception {
JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
jobExplorerFactoryBean.setDataSource(getDataSource());
jobExplorerFactoryBean.afterPropertiesSet();
return jobExplorerFactoryBean.getObject();
}
}