org.springframework.batch.core.configuration.annotation.DefaultBatchConfigurer Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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 javax.annotation.PostConstruct;
import javax.sql.DataSource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
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.explore.support.MapJobExplorerFactoryBean;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.launch.support.SimpleJobLauncher;
import org.springframework.batch.core.repository.JobRepository;
import org.springframework.batch.core.repository.support.JobRepositoryFactoryBean;
import org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean;
import org.springframework.batch.support.transaction.ResourcelessTransactionManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.stereotype.Component;
import org.springframework.transaction.PlatformTransactionManager;
@Component
public class DefaultBatchConfigurer implements BatchConfigurer {
private static final Log logger = LogFactory.getLog(DefaultBatchConfigurer.class);
private DataSource dataSource;
private PlatformTransactionManager transactionManager;
private JobRepository jobRepository;
private JobLauncher jobLauncher;
private JobExplorer jobExplorer;
/**
* Sets the dataSource. If the {@link DataSource} has been set once, all future
* values are passed are ignored (to prevent {@code}@Autowired{@code} from overwriting
* the value).
*
* @param dataSource The data source to use
*/
@Autowired(required = false)
public void setDataSource(DataSource dataSource) {
if(this.dataSource == null) {
this.dataSource = dataSource;
}
if(getTransactionManager() == null) {
logger.warn("No transaction manager was provided, using a DataSourceTransactionManager");
this.transactionManager = new DataSourceTransactionManager(this.dataSource);
}
}
protected DefaultBatchConfigurer() {}
public DefaultBatchConfigurer(DataSource dataSource) {
setDataSource(dataSource);
}
@Override
public JobRepository getJobRepository() {
return jobRepository;
}
@Override
public PlatformTransactionManager getTransactionManager() {
return transactionManager;
}
@Override
public JobLauncher getJobLauncher() {
return jobLauncher;
}
@Override
public JobExplorer getJobExplorer() {
return jobExplorer;
}
@PostConstruct
public void initialize() {
try {
if(dataSource == null) {
logger.warn("No datasource was provided...using a Map based JobRepository");
if(getTransactionManager() == null) {
logger.warn("No transaction manager was provided, using a ResourcelessTransactionManager");
this.transactionManager = new ResourcelessTransactionManager();
}
MapJobRepositoryFactoryBean jobRepositoryFactory = new MapJobRepositoryFactoryBean(getTransactionManager());
jobRepositoryFactory.afterPropertiesSet();
this.jobRepository = jobRepositoryFactory.getObject();
MapJobExplorerFactoryBean jobExplorerFactory = new MapJobExplorerFactoryBean(jobRepositoryFactory);
jobExplorerFactory.afterPropertiesSet();
this.jobExplorer = jobExplorerFactory.getObject();
} else {
this.jobRepository = createJobRepository();
this.jobExplorer = createJobExplorer();
}
this.jobLauncher = createJobLauncher();
} catch (Exception e) {
throw new BatchConfigurationException(e);
}
}
protected JobLauncher createJobLauncher() throws Exception {
SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
jobLauncher.setJobRepository(jobRepository);
jobLauncher.afterPropertiesSet();
return jobLauncher;
}
protected JobRepository createJobRepository() throws Exception {
JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
factory.setDataSource(dataSource);
factory.setTransactionManager(getTransactionManager());
factory.afterPropertiesSet();
return factory.getObject();
}
protected JobExplorer createJobExplorer() throws Exception {
JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
jobExplorerFactoryBean.setDataSource(this.dataSource);
jobExplorerFactoryBean.afterPropertiesSet();
return jobExplorerFactoryBean.getObject();
}
}