org.jboss.remoting.transport.socket.TimedOutputStream Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* Copyright 2009, 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.remoting.transport.socket;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Timer;
import java.util.TimerTask;
import org.jboss.logging.Logger;
/**
* @author Ron Sigal
* @version $Rev$
*
* Copyright April 22, 2009
*
*/
public class TimedOutputStream extends OutputStream
{
static private Timer timer = new Timer(true);
static private Logger log = Logger.getLogger(TimedOutputStream.class);
private OutputStream os;
private int outputTimeout;
private OutputTimerTask timerTask;
private Object lock = new Object();
public TimedOutputStream(OutputStream os, int outputTimeout)
{
this.os = os;
this.outputTimeout = outputTimeout;
}
public void close() throws IOException
{
os.close();
}
public void write(int b) throws IOException
{
synchronized (lock)
{
if (timerTask == null)
{
try
{
timerTask = new OutputTimerTask(this);
timer.schedule(timerTask, outputTimeout);
if (log.isTraceEnabled()) log.trace("scheduled OutputTimerTask: " + outputTimeout);
}
catch (IllegalStateException e)
{
timer = new Timer(true);
timer.schedule(new OutputTimerTask(this), outputTimeout);
if (log.isTraceEnabled()) log.trace("scheduled OutputTimerTask: " + outputTimeout);
}
}
}
try
{
os.write(b);
}
finally
{
synchronized (lock)
{
timerTask.cancel();
timerTask = null;
}
}
}
public void write(byte b[], int off, int len) throws IOException
{
synchronized (lock)
{
if (timerTask == null)
{
try
{
timerTask = new OutputTimerTask(this);
timer.schedule(timerTask, outputTimeout);
if (log.isTraceEnabled()) log.trace(this + " scheduled " + timerTask + ": " + outputTimeout);
}
catch (IllegalStateException e)
{
// timer = new Timer("TimedOutputStreamTimer", true);
timer = new Timer(true);
timer.schedule(new OutputTimerTask(this), outputTimeout);
if (log.isTraceEnabled()) log.trace(this + " scheduled " + timerTask + ": " + outputTimeout);
}
}
}
try
{
os.write(b, off, len);
}
finally
{
synchronized (lock)
{
timerTask.cancel();
timerTask = null;
}
}
}
static class OutputTimerTask extends TimerTask
{
private TimedOutputStream tos;
public OutputTimerTask(TimedOutputStream tos)
{
this.tos = tos;
}
public void run()
{
try
{
log.debug(this + " closing: " + tos);
tos.close();
tos = null;
}
catch (IOException e)
{
log.debug("unable to close " + tos);
}
}
public boolean cancel()
{
tos = null;
return super.cancel();
}
}
}