/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2015, Red Hat Inc, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* This software 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 Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse Public License
* along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.ironjacamar.rars.perf;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.resource.ResourceException;
import javax.resource.spi.ConnectionEvent;
import javax.resource.spi.ConnectionEventListener;
import javax.resource.spi.ConnectionRequestInfo;
import javax.resource.spi.LocalTransaction;
import javax.resource.spi.ManagedConnection;
import javax.resource.spi.ManagedConnectionMetaData;
import javax.security.auth.Subject;
import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
/**
* PerfManagedConnection
*/
public class PerfManagedConnection implements ManagedConnection, LocalTransaction, XAResource
{
/** The logwriter */
private PrintWriter logwriter;
/** ManagedConnectionFactory */
private PerfManagedConnectionFactory mcf;
/** Transaction begin duration */
private long txBeginDuration;
/** Transaction commit duration */
private long txCommitDuration;
/** Listeners */
private List<ConnectionEventListener> listeners;
/** Connection */
private PerfConnectionImpl connection;
/**
* Default constructor
* @param mcf mcf
* @param tb Transaction begin duration
* @param tc Transaction commit duration
*/
public PerfManagedConnection(PerfManagedConnectionFactory mcf, long tb, long tc)
{
this.mcf = mcf;
this.txBeginDuration = tb;
this.txCommitDuration = tc;
this.logwriter = null;
this.listeners = Collections.synchronizedList(new ArrayList<ConnectionEventListener>(1));
this.connection = new PerfConnectionImpl(this);
}
/**
* Creates a new connection handle for the underlying physical connection
* represented by the ManagedConnection instance.
*
* @param subject Security context as JAAS subject
* @param cxRequestInfo ConnectionRequestInfo instance
* @return generic Object instance representing the connection handle.
* @throws ResourceException generic exception if operation fails
*/
public Object getConnection(Subject subject,
ConnectionRequestInfo cxRequestInfo)
throws ResourceException
{
return connection;
}
/**
* Used by the container to change the association of an
* application-level connection handle with a ManagedConneciton instance.
*
* @param connection Application-level connection handle
* @throws ResourceException generic exception if operation fails
*/
public void associateConnection(Object connection) throws ResourceException
{
if (connection == null)
throw new ResourceException("Null connection handle");
if (!(connection instanceof PerfConnectionImpl))
throw new ResourceException("Wrong connection handle");
this.connection = (PerfConnectionImpl)connection;
}
/**
* Application server calls this method to force any cleanup on the ManagedConnection instance.
*
* @throws ResourceException generic exception if operation fails
*/
public void cleanup() throws ResourceException
{
// We want to be able to use txState across checkouts
}
/**
* Destroys the physical connection to the underlying resource manager.
*
* @throws ResourceException generic exception if operation fails
*/
public void destroy() throws ResourceException
{
}
/**
* Adds a connection event listener to the ManagedConnection instance.
*
* @param listener A new ConnectionEventListener to be registered
*/
public void addConnectionEventListener(ConnectionEventListener listener)
{
if (listener == null)
throw new IllegalArgumentException("Listener is null");
listeners.add(listener);
}
/**
* Removes an already registered connection event listener from the ManagedConnection instance.
*
* @param listener already registered connection event listener to be removed
*/
public void removeConnectionEventListener(ConnectionEventListener listener)
{
if (listener == null)
throw new IllegalArgumentException("Listener is null");
listeners.remove(listener);
}
/**
* Close handle
*/
void closeHandle()
{
ConnectionEvent closeEvent = new ConnectionEvent(this, ConnectionEvent.CONNECTION_CLOSED);
closeEvent.setConnectionHandle(connection);
List<ConnectionEventListener> copy = new ArrayList<ConnectionEventListener>(listeners);
for (ConnectionEventListener cel : copy)
{
cel.connectionClosed(closeEvent);
}
}
/**
* Error handle
*/
void errorHandle()
{
ConnectionEvent errorEvent = new ConnectionEvent(this, ConnectionEvent.CONNECTION_ERROR_OCCURRED,
new Exception());
errorEvent.setConnectionHandle(connection);
List<ConnectionEventListener> copy = new ArrayList<ConnectionEventListener>(listeners);
for (ConnectionEventListener cel : copy)
{
cel.connectionErrorOccurred(errorEvent);
}
}
/**
* Gets the log writer for this ManagedConnection instance.
*
* @return Character output stream associated with this Managed-Connection instance
* @throws ResourceException generic exception if operation fails
*/
public PrintWriter getLogWriter() throws ResourceException
{
return logwriter;
}
/**
* Sets the log writer for this ManagedConnection instance.
*
* @param out Character Output stream to be associated
* @throws ResourceException generic exception if operation fails
*/
public void setLogWriter(PrintWriter out) throws ResourceException
{
logwriter = out;
}
/**
* Returns an <code>javax.resource.spi.LocalTransaction</code> instance.
*
* @return LocalTransaction instance
* @throws ResourceException generic exception if operation fails
*/
public LocalTransaction getLocalTransaction() throws ResourceException
{
return this;
}
/**
* Returns an <code>javax.transaction.xa.XAresource</code> instance.
*
* @return XAResource instance
* @throws ResourceException generic exception if operation fails
*/
public XAResource getXAResource() throws ResourceException
{
return this;
}
/**
* Gets the metadata information for this connection's underlying EIS resource manager instance.
*
* @return ManagedConnectionMetaData instance
* @throws ResourceException generic exception if operation fails
*/
public ManagedConnectionMetaData getMetaData() throws ResourceException
{
return new PerfManagedConnectionMetaData();
}
// LocalTransaction
/**
* {@inheritDoc}
*/
public void begin() throws ResourceException
{
if (txBeginDuration > 0)
{
try
{
Thread.sleep(txBeginDuration);
}
catch (Exception e)
{
// Ignore
}
}
ConnectionEvent ce = new ConnectionEvent(this, ConnectionEvent.LOCAL_TRANSACTION_STARTED);
for (ConnectionEventListener cel : listeners)
{
cel.localTransactionStarted(ce);
}
}
/**
* {@inheritDoc}
*/
public void commit() throws ResourceException
{
if (txCommitDuration > 0)
{
try
{
Thread.sleep(txCommitDuration);
}
catch (Exception e)
{
// Ignore
}
}
ConnectionEvent ce = new ConnectionEvent(this, ConnectionEvent.LOCAL_TRANSACTION_COMMITTED);
for (ConnectionEventListener cel : listeners)
{
cel.localTransactionCommitted(ce);
}
}
/**
* {@inheritDoc}
*/
public void rollback() throws ResourceException
{
if (txCommitDuration > 0)
{
try
{
Thread.sleep(txCommitDuration);
}
catch (Exception e)
{
// Ignore
}
}
ConnectionEvent ce = new ConnectionEvent(this, ConnectionEvent.LOCAL_TRANSACTION_ROLLEDBACK);
for (ConnectionEventListener cel : listeners)
{
cel.localTransactionRolledback(ce);
}
}
// XAResource
/**
* {@inheritDoc}
*/
public void start(Xid xid, int flags) throws XAException
{
if (txBeginDuration > 0)
{
try
{
Thread.sleep(txBeginDuration);
}
catch (Exception e)
{
// Ignore
}
}
}
/**
* {@inheritDoc}
*/
public void commit(Xid xid, boolean onePhase) throws XAException
{
if (txCommitDuration > 0)
{
try
{
Thread.sleep(txCommitDuration);
}
catch (Exception e)
{
// Ignore
}
}
}
/**
* {@inheritDoc}
*/
public void rollback(Xid xid) throws XAException
{
if (txCommitDuration > 0)
{
try
{
Thread.sleep(txCommitDuration);
}
catch (Exception e)
{
// Ignore
}
}
}
/**
* {@inheritDoc}
*/
public void end(Xid xid, int flags) throws XAException
{
}
/**
* {@inheritDoc}
*/
public void forget(Xid xid) throws XAException
{
}
/**
* {@inheritDoc}
*/
public boolean isSameRM(XAResource xares) throws XAException
{
if (this == xares)
return true;
return false;
}
/**
* {@inheritDoc}
*/
public int prepare(Xid xid) throws XAException
{
return XAResource.XA_OK;
}
/**
* {@inheritDoc}
*/
public Xid[] recover(int flag) throws XAException
{
return new Xid[] {};
}
/**
* {@inheritDoc}
*/
public int getTransactionTimeout() throws XAException
{
return 0;
}
/**
* {@inheritDoc}
*/
public boolean setTransactionTimeout(int seconds) throws XAException
{
return true;
}
/**
* {@inheritDoc}
*/
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
sb.append("PerfManagedConnection@").append(Integer.toHexString(System.identityHashCode(this)));
return sb.toString();
}
}