/*
* Copyright 2002-2010 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.jdbc.datasource.init;
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.dao.DataAccessResourceFailureException;
import org.springframework.util.Assert;
/**
* Used to populate a database during initialization.
*
* @author Dave Syer
* @since 3.0
* @see DatabasePopulator
*/
public class DataSourceInitializer implements InitializingBean {
private DataSource dataSource;
private DatabasePopulator databasePopulator;
private boolean enabled = true;
/**
* The {@link DataSource} to populate when this component is initialized.
* Mandatory with no default.
* @param dataSource the DataSource
*/
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
/**
* The {@link DatabasePopulator} to use to populate the data source.
* Mandatory with no default.
* @param databasePopulator the database populator to use.
*/
public void setDatabasePopulator(DatabasePopulator databasePopulator) {
this.databasePopulator = databasePopulator;
}
/**
* Flag to explicitly enable or disable the database populator.
* @param enabled true if the database populator will be called on startup
*/
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
/**
* Use the populator to set up data in the data source.
*/
public void afterPropertiesSet() throws Exception {
if (this.enabled) {
Assert.state(this.dataSource != null, "DataSource must be provided");
Assert.state(this.databasePopulator != null, "DatabasePopulator must be provided");
try {
Connection connection = this.dataSource.getConnection();
try {
this.databasePopulator.populate(connection);
}
finally {
try {
connection.close();
}
catch (SQLException ex) {
// ignore
}
}
}
catch (Exception ex) {
throw new DataAccessResourceFailureException("Failed to populate database", ex);
}
}
}
}
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