bitronix.tm.resource.jdbc.lrc.LrcXAConnection Maven / Gradle / Ivy
/*
* Bitronix Transaction Manager
*
* Copyright (c) 2010, Bitronix Software.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package bitronix.tm.resource.jdbc.lrc;
import bitronix.tm.resource.jdbc.BaseProxyHandlerClass;
import bitronix.tm.utils.ClassLoaderUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.sql.ConnectionEvent;
import javax.sql.ConnectionEventListener;
import javax.sql.XAConnection;
import javax.transaction.xa.XAResource;
import java.lang.reflect.Proxy;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
/**
* XAConnection implementation for a non-XA JDBC resource emulating XA with Last Resource Commit.
*
* @author lorban, brettw
*/
public class LrcXAConnection extends BaseProxyHandlerClass { // implements XAConnection
private final static Logger log = LoggerFactory.getLogger(LrcXAConnection.class);
private final Connection connection;
private final LrcXAResource xaResource;
private final List connectionEventListeners = new CopyOnWriteArrayList();
public LrcXAConnection(Connection connection) {
this.connection = connection;
this.xaResource = new LrcXAResource(connection);
}
public XAResource getXAResource() throws SQLException {
return xaResource;
}
public void close() throws SQLException {
connection.close();
fireCloseEvent();
}
public Connection getConnection() throws SQLException {
LrcConnectionHandle lrcConnectionHandle = new LrcConnectionHandle(xaResource, connection);
return (Connection) Proxy.newProxyInstance(ClassLoaderUtils.getClassLoader(), new Class[] { Connection.class }, lrcConnectionHandle);
}
public void addConnectionEventListener(ConnectionEventListener listener) {
connectionEventListeners.add(listener);
}
public void removeConnectionEventListener(ConnectionEventListener listener) {
connectionEventListeners.remove(listener);
}
private void fireCloseEvent() {
if (log.isDebugEnabled()) log.debug("notifying " + connectionEventListeners.size() + " connectionEventListeners(s) about closing of " + this);
for (ConnectionEventListener connectionEventListener : connectionEventListeners) {
XAConnection conn = (XAConnection) Proxy.newProxyInstance(ClassLoaderUtils.getClassLoader(), new Class[]{XAConnection.class}, this);
connectionEventListener.connectionClosed(new ConnectionEvent(conn));
}
}
public boolean equals(Object obj) {
if (!(obj instanceof LrcXAConnection))
return false;
LrcXAConnection other = (LrcXAConnection) obj;
return this.connection.equals(other.connection);
}
public int hashCode() {
return this.connection.hashCode();
}
public String toString() {
return "a JDBC LrcXAConnection on " + connection;
}
public Object getProxiedDelegate() throws Exception {
return connection;
}
}
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