com.arjuna.webservices.base.processors.Callback Maven / Gradle / Ivy
/*
* 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 in the distribution for a full listing
* of individual contributors.
* 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, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
package com.arjuna.webservices.base.processors;
/**
* Base class for callbacks.
* @author kevin
*/
public abstract class Callback
{
/**
* The triggered flag.
*/
private boolean triggered ;
/**
* The failed flag.
*/
private boolean failed ;
/**
* Has the callback triggered.
* @return true if triggered, false otherwise.
*/
public final synchronized boolean hasTriggered()
{
return triggered ;
}
/**
* Set the triggered flag.
*/
public final synchronized void setTriggered()
{
triggered = true ;
notifyAll() ;
}
/**
* Has the callback failed.
* @return true if failed, false otherwise.
*/
public final synchronized boolean hasFailed()
{
return failed ;
}
/**
* Set the failed flag.
*/
public final synchronized void setFailed()
{
failed = true ;
notifyAll() ;
}
/**
* Wait until the callback has triggered or failed.
*/
public final void waitUntilTriggered()
{
waitUntilTriggered(0) ;
}
/**
* Wait until the callback has triggered or failed.
* @param delay the timeout period in milliseconds.
*/
public final synchronized void waitUntilTriggered(final long delay)
{
final long endTime = (delay <= 0 ? Long.MAX_VALUE : System.currentTimeMillis() + delay) ;
long now = System.currentTimeMillis() ;
while((endTime > now) && !(triggered || failed))
{
try
{
wait(endTime - now) ;
}
catch (final InterruptedException ie) {}
now = System.currentTimeMillis() ;
}
}
}