/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.aspects.asynchronous.concurrent;
import org.jboss.aspects.asynchronous.AsynchronousConstants;
import org.jboss.aspects.asynchronous.AsynchronousParameters;
import org.jboss.aspects.asynchronous.AsynchronousUserTask;
import org.jboss.aspects.asynchronous.ProcessingTime;
import org.jboss.aspects.asynchronous.ThreadManagerResponse;
import org.jboss.aspects.asynchronous.common.ThreadManagerResponseImpl;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeoutException;
/**
* @author <a href="mailto:chussenet@yahoo.com">{Claude Hussenet Independent Consultant}</a>.
* @version <tt>$Revision: 63393 $</tt>
*/
public final class AsynchronousTaskImpl
implements AsynchronousConstants, AsynchronousTask
{
private long _timeout = 0;
private AsynchronousParameters _inputParametersImpl = null;
private AsynchronousUserTask _oneInstance = null;
//private FutureResult _futureResult = null;
private FutureTask _futureResult = null;
private Callable _callable = null;
private String _id = null;
AsynchronousTaskImpl(String id,
String taskImpl,
AsynchronousParameters inputParametersImpl,
long timeout)
{
this._id = id;
_timeout = timeout;
_inputParametersImpl = inputParametersImpl;
try
{
Class aClass = Class.forName(taskImpl);
_oneInstance = (AsynchronousUserTask) aClass.newInstance();
}
catch (Exception e)
{
e.printStackTrace();
}
}
AsynchronousTaskImpl(String id,
AsynchronousUserTask userTask,
AsynchronousParameters inputParametersImpl,
long timeout)
{
this._id = id;
_timeout = timeout;
_oneInstance = userTask;
_inputParametersImpl = inputParametersImpl;
}
public AsynchronousParameters getInputParameters()
{
return _inputParametersImpl;
}
public long getTimeout()
{
return _timeout;
}
public AsynchronousUserTask getTask()
{
return _oneInstance;
}
public ThreadManagerResponse getResponse()
{
try
{
if (isDone())
return (ThreadManagerResponse) _futureResult.get();
else
{
Object value = _futureResult.get();
if (value != null)
return (ThreadManagerResponse) value;
else
return new ThreadManagerResponseImpl(getId(),
NOVALUE,
null,
null);
}
}
catch (InterruptedException e)
{
return new ThreadManagerResponseImpl(getId(),
INTERRUPTED,
e.getMessage(),
e,
getStartingTime(),
getEndingTime());
}
catch(ExecutionException e)
{
int errorCode = INVOCATION;
if (e.getCause() instanceof TimeoutException)
errorCode = TIMEOUT;
return new ThreadManagerResponseImpl(getId(),
errorCode,
e.getCause().getMessage(),
e.getCause(),
getStartingTime(),
getEndingTime());
}
}
public long getStartingTime()
{
return ((ProcessingTime) _callable).getStartingTime();
}
public long getEndingTime()
{
return ((ProcessingTime) _callable).getEndingTime();
}
public boolean isDone()
{
return _futureResult.isDone();
}
public Runnable add() throws Exception
{
try
{
if (_timeout == 0)
_callable =
new AdapterTask(getId(),
_inputParametersImpl,
_oneInstance);
else
_callable =
new TimedCallableImpl(new AdapterTask(getId(),
_inputParametersImpl,
_oneInstance),
_timeout);
_futureResult = new FutureTask(_callable);
return _futureResult;
}
catch (Exception e)
{
throw e;
}
}
public String getId()
{
return _id;
}
}