com.arjuna.mwlabs.wsas.activity.ReaperElement 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.
*/
/*
* Copyright (C) 2002,
*
* Arjuna Technologies Limited,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: ReaperElement.java,v 1.3 2004/03/15 13:25:00 nmcl Exp $
*/
package com.arjuna.mwlabs.wsas.activity;
public class ReaperElement implements Comparable
{
/*
* Currently, once created the reaper object and thread stay around
* forever.
* We could destroy both once the list of transactions is null. Depends
* upon the relative cost of recreating them over keeping them around.
*/
public ReaperElement (ActivityImple act, int timeout)
{
_activity = act;
_timeout = timeout;
/*
* Given a timeout period in seconds, calculate its absolute value
* from the current time of day in milliseconds.
*/
_absoluteTimeout = timeout*1000 + System.currentTimeMillis();
}
public ActivityImple _activity;
public long _absoluteTimeout;
public int _timeout;
public int compareTo(ReaperElement o)
{
if (this == o) {
return 0;
}
long otherAbsoluteTimeout = o._absoluteTimeout;
if (_absoluteTimeout < otherAbsoluteTimeout) {
return -1;
} else if (_absoluteTimeout > otherAbsoluteTimeout) {
return 1;
} else {
// enforce law of trichotomy
int hashcode = this.hashCode();
int otherHashcode = o.hashCode();
if (hashcode < otherHashcode) {
return -1;
} else if (hashcode > otherHashcode) {
return 1;
} else {
// should not happen (often :-)
return 0;
}
}
}
}