DataSourceConfiguration.java example

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spring-batch-master
/*
 * Copyright 2012-2014 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 org.springframework.batch.core.Step;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ResourceLoader;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseFactory;
import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
import org.springframework.util.ClassUtils;

import javax.annotation.PostConstruct;
import javax.sql.DataSource;

@Configuration
public class DataSourceConfiguration {

	@Autowired
	private Environment environment;

	@Autowired
	private ResourceLoader resourceLoader;

	@PostConstruct
	protected void initialize() {
		ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
		populator.addScript(resourceLoader.getResource(ClassUtils.addResourcePathToPackagePath(Step.class, "schema-hsqldb.sql")));
		populator.setContinueOnError(true);
		DatabasePopulatorUtils.execute(populator, dataSource());
	}

	@Bean
	public DataSource dataSource() {
		return new EmbeddedDatabaseFactory().getDatabase();
	}

}