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//******************************************************************************
//
// File: MultipleParallelException.java
// Package: edu.rit.pj
// Unit: Class edu.rit.pj.MultipleParallelException
//
// This Java source file is copyright (C) 2007 by Alan Kaminsky. All rights
// reserved. For further information, contact the author, Alan Kaminsky, at
// ark@cs.rit.edu.
//
// This Java source file is part of the Parallel Java Library ("PJ"). PJ is free
// software; you can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// PJ 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.
//
// Linking this library statically or dynamically with other modules is making a
// combined work based on this library. Thus, the terms and conditions of the
// GNU General Public License cover the whole combination.
//
// As a special exception, the copyright holders of this library give you
// permission to link this library with independent modules to produce an
// executable, regardless of the license terms of these independent modules, and
// to copy and distribute the resulting executable under terms of your choice,
// provided that you also meet, for each linked independent module, the terms
// and conditions of the license of that module. An independent module is a
// module which is not derived from or based on this library. If you modify this
// library, you may extend this exception to your version of the library, but
// you are not obligated to do so. If you do not wish to do so, delete this
// exception statement from your version.
//
// A copy of the GNU General Public License is provided in the file gpl.txt. You
// may also obtain a copy of the GNU General Public License on the World Wide
// Web at http://www.gnu.org/licenses/gpl.html.
//
//******************************************************************************
package edu.rit.pj;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.Map;
/**
* Class MultipleParallelException is thrown to indicate that multiple threads
* in a parallel team threw exceptions while executing a parallel construct. The
* individual exceptions thrown by the threads are contained in a {@linkplain
* java.util.Map Map} mapping the thread index (type Integer) to the exception
* thrown by that thread (type Throwable).
*
* @author Alan Kaminsky
* @version 16-May-2007
*/
public class MultipleParallelException
extends Exception
{
// Hidden data members.
private Map<Integer,Throwable> myMap;
// Exported constructors.
/**
* Create a new multiple parallel exception with no detail message and no
* exception map.
*/
public MultipleParallelException()
{
super();
}
/**
* Create a new multiple parallel exception with the given detail message
* and no exception map.
*
* @param theMessage Detail message.
*/
public MultipleParallelException
(String theMessage)
{
super (theMessage);
}
/**
* Create a new multiple parallel exception with no detail message and the
* given exception map.
*
* @param theMap Exception map.
*/
public MultipleParallelException
(Map<Integer,Throwable> theMap)
{
super();
myMap = theMap;
}
/**
* Create a new multiple parallel exception with the given detail message
* and the given exception map.
*
* @param theMessage Detail message.
* @param theMap Exception map.
*/
public MultipleParallelException
(String theMessage,
Map<Integer,Throwable> theMap)
{
super (theMessage);
myMap = theMap;
}
// Exported operations.
/**
* Obtain this multiple parallel exception's exception map.
*
* @return Exception map, or null if none.
*/
public Map<Integer,Throwable> getExceptionMap()
{
return myMap;
}
/**
* Print this throwable and its backtrace to the specified print stream. The
* stack traces of this multiple parallel exception itself and of all the
* wrapped exceptions in the exception map are printed.
*
* @param s Print stream to use for output.
*/
public void printStackTrace
(PrintStream s)
{
synchronized (s)
{
super.printStackTrace (s);
if (myMap != null)
{
for
(Map.Entry<Integer,Throwable> entry : myMap.entrySet())
{
s.println ("Parallel team thread " + entry.getKey() + ":");
entry.getValue().printStackTrace (s);
}
}
}
}
/**
* Print this throwable and its backtrace to the specified print writer. The
* stack traces of this multiple parallel exception itself and of all the
* wrapped exceptions in the exception map are printed.
*
* @param s Print writer to use for output.
*/
public void printStackTrace
(PrintWriter s)
{
synchronized (s)
{
super.printStackTrace (s);
if (myMap != null)
{
for
(Map.Entry<Integer,Throwable> entry : myMap.entrySet())
{
s.println ("Parallel team thread " + entry.getKey() + ":");
entry.getValue().printStackTrace (s);
}
}
}
}
}
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