/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, 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 GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General 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.jboss.resource.connectionmanager;
import java.util.LinkedList;
/**
* PoolFiller
*
* @author <a href="mailto:d_jencks@users.sourceforge.net">David Jencks</a>
* @author Scott.Stark@jboss.org
* @author <a href="mailto:adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 80838 $
*/
public class PoolFiller implements Runnable
{
private final LinkedList pools = new LinkedList();
private final Thread fillerThread;
private static final PoolFiller filler = new PoolFiller();
public static void fillPool(InternalManagedConnectionPool mcp)
{
filler.internalFillPool(mcp);
}
public PoolFiller ()
{
fillerThread = new Thread(this, "JCA PoolFiller");
fillerThread.start();
}
public void run()
{
final ClassLoader myClassLoader = getClass().getClassLoader();
SecurityActions.setTCL(myClassLoader);
//keep going unless interrupted
while (true)
{
try
{
InternalManagedConnectionPool mcp = null;
//keep iterating through pools till empty, exception escapes.
while (true)
{
synchronized (pools)
{
mcp = (InternalManagedConnectionPool)pools.removeFirst();
}
if (mcp == null)
break;
mcp.fillToMin();
}
}
catch (Exception e)
{
}
try
{
synchronized (pools)
{
while(pools.isEmpty())
{
pools.wait();
}
}
}
catch (InterruptedException ie)
{
return;
}
}
}
private void internalFillPool(InternalManagedConnectionPool mcp)
{
synchronized (pools)
{
pools.addLast(mcp);
pools.notify();
}
}
}