/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004-2008], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program 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 GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.util.unittest.server;
/**
* A thread group that a client may use for registering an action to perform
* if an uncaught exception is handled. The uncaught exception may also be
* retrieved.
*/
public class ExceptionHandlingThreadGroup extends ThreadGroup {
private final Object _lock = new Object();
private Runnable _runnable;
private Throwable _uncaughtException;
public ExceptionHandlingThreadGroup(String name) {
super(name);
}
/**
* @return The uncaught exception or <code>null</code>.
*/
public Throwable getUncaughtException() {
synchronized (_lock) {
return _uncaughtException;
}
}
/**
* Set an action to execute in the uncaught exception handler.
*
* @param runnable The runnable representing the action to execute.
*/
public void setUncaughtExceptionAction(Runnable runnable) {
synchronized (_lock) {
_runnable = runnable;
}
}
public void uncaughtException(Thread t, Throwable e) {
synchronized (_lock) {
_uncaughtException = e;
if (_runnable != null) {
_runnable.run();
}
}
}
}