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CIP4 JDF Library for JDF 1.x
/*
*
* The CIP4 Software License, Version 1.0
*
*
* Copyright (c) 2001-2023 The International Cooperation for the Integration of Processes in Prepress, Press and Postpress (CIP4). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must include the following acknowledgment: "This product includes software developed by the The International Cooperation for
* the Integration of Processes in Prepress, Press and Postpress (www.cip4.org)" Alternately, this acknowledgment may appear in the software itself, if and wherever such third-party acknowledgments
* normally appear.
*
* 4. The names "CIP4" and "The International Cooperation for the Integration of Processes in Prepress, Press and Postpress" must not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "CIP4", nor may "CIP4" appear in their name, without prior written permission of the CIP4 organization
*
* Usage of this software in commercial products is subject to restrictions. For details please consult [email protected].
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE INTERNATIONAL COOPERATION FOR THE INTEGRATION OF PROCESSES IN PREPRESS, PRESS AND POSTPRESS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE. ====================================================================
*
* This software consists of voluntary contributions made by many individuals on behalf of the The International Cooperation for the Integration of Processes in Prepress, Press and Postpress and was
* originally based on software copyright (c) 1999-2001, Heidelberger Druckmaschinen AG copyright (c) 1999-2001, Agfa-Gevaert N.V.
*
* For more information on The International Cooperation for the Integration of Processes in Prepress, Press and Postpress , please see hotfolders;
MyMutex mutex;
private static Log log = LogFactory.getLog(HotFolderRunner.class);
static final AtomicReference theRunner = new AtomicReference<>(null);
int ran;
public static void shutDown()
{
if (getTherunner() != null)
{
log.info("shutdown hot folder runner: " + getTherunner());
getTherunner().quit();
}
}
/**
* stop this thread;
*
*/
void quit()
{
final String name = getName();
log.info("Stopping hot folder runner: " + this);
interrupt.set(true);
ThreadUtil.notifyAll(mutex);
MultiTaskQueue.shutDown(name);
ThreadUtil.notifyAll(this);
log.info("Finished stopping hot folder: " + this);
theRunner.set(null);
}
/**
*
* @param hotFolder
*/
public synchronized void add(final HotFolder hotFolder)
{
hotfolders.remove(hotFolder);
hotfolders.add(hotFolder);
setMaxConcurrent(hotfolders.size());
ThreadUtil.notifyAll(mutex);
}
/**
*
* @param hotFolder
*/
public synchronized void remove(final HotFolder hotFolder)
{
hotfolders.remove(hotFolder);
log.info("removing " + hotFolder.getDir());
if (hotfolders.isEmpty())
{
quit();
}
}
public HotFolderRunner()
{
super("HotFolderRunner");
hotfolders = new ArrayList<>();
setDaemon(true);
log.info("Starting hotfolder runner thread " + getName());
interrupt = new AtomicBoolean(false);
mutex = new MyMutex();
ran = 0;
setMaxConcurrent(1);
start();
}
/**
* @param maxConcurrent the maxConcurrent to set
*/
public void setMaxConcurrent(int maxConcurrent)
{
if (maxConcurrent < 1)
{
maxConcurrent = 1;
}
else if (maxConcurrent > 13)
{
maxConcurrent = 13;
}
if (maxConcurrent > this.maxConcurrent)
{
log.info("Setting maxConcurrent to " + maxConcurrent + " " + toString());
this.maxConcurrent = maxConcurrent;
}
}
final AtomicBoolean interrupt;
private int maxConcurrent;
/**
* @see java.lang.Thread#run()
*/
@Override
public void run()
{
log.info("start of loop " + this);
while (!interrupt.get())
{
final long t0 = System.currentTimeMillis();
boolean mod = false;
final ArrayList local = new ArrayList<>(hotfolders);
for (final HotFolder folder : local)
{
try
{
mod = folder.loop() || mod;
if (interrupt.get())
{
log.info("interrupted in hotfolder loop " + folder);
break;
}
}
catch (final Throwable t)
{
log.error("snafu in " + folder, t);
}
}
if (!interrupt.get())
{
final long t1 = System.currentTimeMillis();
final int millis = mod ? 0 : HotFolder.getDefaultStabilizeTime() - (int) (t1 - t0);
ThreadUtil.wait(mutex, Math.max(42, millis));
}
}
log.info("end of hot folder loop " + this);
}
/**
* @return the therunner
*/
static HotFolderRunner getCreateTherunner()
{
synchronized (theRunner)
{
if (theRunner.get() == null)
theRunner.set(new HotFolderRunner());
return theRunner.get();
}
}
/**
* @return the therunner
*/
static HotFolderRunner getTherunner()
{
synchronized (theRunner)
{
final HotFolderRunner hotFolderRunner = theRunner.get();
return hotFolderRunner == null || hotFolderRunner.interrupt.get() ? null : hotFolderRunner;
}
}
/**
* @see java.lang.Object#toString()
*/
@Override
public String toString()
{
return "HotFolderRunner [" + "hotfolders[" + hotfolders.size() + "] " + (interrupt.get() ? "interrupt" : "") + ", maxConcurrent=" + maxConcurrent + "]";
}
/**
* @return the maxConcurrent
*/
public int getMaxConcurrent()
{
return maxConcurrent;
}
boolean runFile(final HotFileRunner runner)
{
ran++;
if (getMaxConcurrent() == 1)
{
log.info("running concurrent " + runner);
runner.run();
}
else
{
final MultiTaskQueue taskQueue = MultiTaskQueue.getCreateQueue(getName(), getMaxConcurrent());
if (taskQueue.size() > (2 * getMaxConcurrent()))
{
log.warn("queueing into full " + runner.shortString() + "-->" + taskQueue.shortString());
}
else
{
log.info("queueing " + runner.shortString() + "-->" + taskQueue.shortString());
}
return taskQueue.queue(runner);
}
return true;
}
/**
* @param o
* @return
* @see java.util.List#contains(java.lang.Object)
*/
public boolean contains(final HotFolder o)
{
return hotfolders.contains(o);
}
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