/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.store.jdbc;
import java.io.File;
import java.io.IOException;
import javax.sql.DataSource;
import org.apache.activemq.util.IOHelper;
import org.apache.derby.jdbc.EmbeddedDataSource;
/**
* A helper class which provides a factory method to create a default
* {@link DataSource) if one is not provided.
*
* @version $Revision: 564057 $
*/
public class DataSourceSupport {
private String dataDirectory = IOHelper.getDefaultDataDirectory();
private File dataDirectoryFile;
private DataSource dataSource;
public DataSourceSupport() {
}
public DataSourceSupport(DataSource dataSource) {
this.dataSource = dataSource;
}
public File getDataDirectoryFile() {
if (dataDirectoryFile == null) {
dataDirectoryFile = new File(getDataDirectory());
}
return dataDirectoryFile;
}
public void setDataDirectoryFile(File dataDirectory) {
this.dataDirectoryFile = dataDirectory;
}
public String getDataDirectory() {
return dataDirectory;
}
public void setDataDirectory(String dataDirectory) {
this.dataDirectory = dataDirectory;
}
public DataSource getDataSource() throws IOException {
if (dataSource == null) {
dataSource = createDataSource();
if (dataSource == null) {
throw new IllegalArgumentException("No dataSource property has been configured");
}
}
return dataSource;
}
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
protected DataSource createDataSource() throws IOException {
// Setup the Derby datasource.
System.setProperty("derby.system.home", getDataDirectoryFile().getCanonicalPath());
System.setProperty("derby.storage.fileSyncTransactionLog", "true");
System.setProperty("derby.storage.pageCacheSize", "100");
final EmbeddedDataSource ds = new EmbeddedDataSource();
ds.setDatabaseName("derbydb");
ds.setCreateDatabase("create");
return ds;
}
public String toString() {
return "" + dataSource;
}
}