/*
* 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 java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jboss.logging.Logger;
/**
* Event queue for WorkManager instances
* @author <a href="jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
public class WorkManagerEventQueue
{
/** The logger */
private static CoreLogger log = Logger.getMessageLogger(CoreLogger.class,
WorkManagerEventQueue.class.getName());
/** Whether trace is enabled */
private static boolean trace = log.isTraceEnabled();
/** The instance */
private static final WorkManagerEventQueue INSTANCE = new WorkManagerEventQueue();
/** The work managers */
private Map<String, List<WorkManagerEvent>> events;
/**
* Constructor
*/
private WorkManagerEventQueue()
{
this.events = new HashMap<String, List<WorkManagerEvent>>();
}
/**
* Get the instance
* @return The instance
*/
public static WorkManagerEventQueue getInstance()
{
return INSTANCE;
}
/**
* Add an event
* @param event The event
*/
public synchronized void addEvent(WorkManagerEvent event)
{
if (trace)
log.tracef("addEvent(%s)", event);
List<WorkManagerEvent> e = events.get(event.getAddress().getWorkManagerName());
if (e == null)
{
e = new ArrayList<WorkManagerEvent>();
events.put(event.getAddress().getWorkManagerName(), e);
}
e.add(event);
}
/**
* Get events
* @param workManagerName The name of the WorkManager
* @return The list of events
*/
public synchronized List<WorkManagerEvent> getEvents(String workManagerName)
{
List<WorkManagerEvent> result = new ArrayList<WorkManagerEvent>();
List<WorkManagerEvent> e = events.get(workManagerName);
if (e != null)
{
result.addAll(e);
e.clear();
}
if (trace)
log.tracef("getEvents(%s): %s", workManagerName, result);
return result;
}
}