/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2014, 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.core.workmanager;
import org.ironjacamar.core.CoreLogger;
import org.ironjacamar.core.api.workmanager.StatisticsExecutor;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.TimeUnit;
import org.jboss.logging.Logger;
import org.jboss.threads.BlockingExecutor;
import org.jboss.threads.JBossThreadPoolExecutor;
import org.jboss.threads.management.ThreadPoolExecutorMBean;
/**
* A StatisticsExecutor implementation keeping track of numberOfFreeThreads
*
* @author Stefano Maestri
*/
public class StatisticsExecutorImpl implements StatisticsExecutor
{
/** The logger */
private static CoreLogger log = Logger.getMessageLogger(CoreLogger.class,
StatisticsExecutorImpl.class.getName());
/** Whether trace is enabled */
private static boolean trace = log.isTraceEnabled();
private final BlockingExecutor realExecutor;
/**
* StatisticsExecutorImpl constructor
* @param realExecutor the real executor we are delegating
*/
public StatisticsExecutorImpl(BlockingExecutor realExecutor)
{
this.realExecutor = realExecutor;
}
@Override
public void execute(Runnable runnable)
{
realExecutor.execute(runnable);
}
@Override
public void executeBlocking(Runnable runnable) throws RejectedExecutionException, InterruptedException
{
realExecutor.executeBlocking(runnable);
}
@Override
public void executeBlocking(Runnable runnable, long l, TimeUnit timeUnit) throws RejectedExecutionException,
InterruptedException
{
realExecutor.executeBlocking(runnable, l, timeUnit);
}
@Override
public void executeNonBlocking(Runnable runnable) throws RejectedExecutionException
{
realExecutor.executeNonBlocking(runnable);
}
@Override
public long getNumberOfFreeThreads()
{
if (realExecutor instanceof JBossThreadPoolExecutor)
{
return ((JBossThreadPoolExecutor) realExecutor).getMaximumPoolSize() -
((JBossThreadPoolExecutor) realExecutor).getActiveCount();
}
else if (realExecutor instanceof ThreadPoolExecutorMBean)
{
return ((ThreadPoolExecutorMBean) realExecutor).getMaxThreads() -
((ThreadPoolExecutorMBean) realExecutor).getCurrentThreadCount();
}
else
{
return 0;
}
}
}