/*
* 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) 2001,
*
* Hewlett-Packard Arjuna Labs,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: SocketProcessId.java 2342 2006-03-30 13:06:17Z $
*/
package com.arjuna.ats.internal.arjuna.utils;
import com.arjuna.ats.arjuna.logging.tsLogger;
import java.lang.management.ManagementFactory;
import com.arjuna.ats.arjuna.exceptions.FatalError;
/**
* Obtains a unique value to represent the process id via ManagementFactory.getRuntimeMXBean().getName().
*
* WARNING: use with care because the contents of getName may change between OSes and versions of
* JDK.
*/
public class MBeanProcessId implements com.arjuna.ats.arjuna.utils.Process
{
/**
* @return the process id. This had better be unique between processes on
* the same machine. If not we're in trouble!
* @message com.arjuna.ats.internal.arjuna.utils.MBeanProcessId_1
* [com.arjuna.ats.internal.arjuna.utils.MBeanProcessId_1]-
* Could not get back a valid pid.
* @message com.arjuna.ats.internal.arjuna.utils.MBeanProcessId_2
* [com.arjuna.ats.internal.arjuna.utils.MBeanProcessId_2] -
* getName returned unrecognized format:
*/
public int getpid ()
{
synchronized (MBeanProcessId._lock)
{
if (_pid == -1)
{
String name = ManagementFactory.getRuntimeMXBean().getName();
String[] parsed = name.split("@");
try
{
_pid = Integer.valueOf(parsed[0]);
}
catch (final Exception ex)
{
throw new FatalError(tsLogger.log_mesg.getString("com.arjuna.ats.internal.arjuna.utils.MBeanProcessId_2")+" "+name, ex);
}
}
}
if (_pid == -1)
throw new FatalError(tsLogger.log_mesg.getString("com.arjuna.ats.internal.arjuna.utils.MBeanProcessId_1"));
return _pid;
}
private static final Object _lock = new Object();
private int _pid = -1;
}