org.openmdx.kernel.lightweight.sql.PooledConnectionFactory Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Lightweight Connection Factory
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2016, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by the Apache Software
* Foundation (http://www.apache.org/).
*/
package org.openmdx.kernel.lightweight.sql;
import java.sql.Connection;
import java.sql.DriverManager;
import java.util.Properties;
import javax.sql.ConnectionEventListener;
import org.openmdx.uses.org.apache.commons.pool2.PooledObject;
import org.openmdx.uses.org.apache.commons.pool2.PooledObjectFactory;
import org.openmdx.uses.org.apache.commons.pool2.impl.DefaultPooledObject;
/**
* Lightweight Connection Factory
*/
class PooledConnectionFactory implements PooledObjectFactory {
/**
* Constructor
*/
PooledConnectionFactory(
String url,
Properties properties,
boolean autoCommit
) {
this.url = url;
this.properties = properties;
this.autoCommit = autoCommit;
}
/**
* A database url of the form jdbc:subprotocol:subname
*/
protected final String url;
/**
* A collection of arbitrary string tag/value pairs as connection arguments
*/
protected final Properties properties;
/**
*
*/
protected final boolean autoCommit;
/**
* The connection event listener is registered with the pooled connections
*/
private ConnectionEventListener connectionEventListener;
/**
* Set the connection event listener
*/
void setConnectionEventListener(ConnectionEventListener listener) {
this.connectionEventListener = listener;
}
@Override
public PooledObject makeObject() throws Exception {
final Connection managedConnection = DriverManager.getConnection(this.url, properties);
managedConnection.setAutoCommit(autoCommit);
final ValidatablePooledConnection pooledConnection = autoCommit ?
new LightweightACConnection(managedConnection) :
new LightweightXAConnection(managedConnection);
pooledConnection.addConnectionEventListener(connectionEventListener);
return new DefaultPooledObject(pooledConnection);
}
@Override
public void destroyObject(PooledObject p) throws Exception {
p.getObject().close();
}
@Override
public boolean validateObject(PooledObject p) {
return p.getObject().isValid();
}
@Override
public void activateObject(PooledObject p) throws Exception {
p.getObject().activate();
}
@Override
public void passivateObject(PooledObject p) throws Exception {
p.getObject().passivate();
}
}