/*
* Copyright (c) 2010-2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.util.io;
import org.eclipse.net4j.internal.util.bundle.OM;
import org.eclipse.net4j.util.WrappedException;
import java.io.IOException;
import java.io.PipedReader;
import java.io.PipedWriter;
import java.io.Reader;
import java.util.concurrent.CountDownLatch;
/**
* @author Eike Stepper
* @since 3.1
*/
public abstract class AsyncWriter extends PipedWriter
{
private CountDownLatch latch = new CountDownLatch(1);
public AsyncWriter() throws IOException
{
final PipedReader in = new PipedReader(this);
Thread thread = new Thread("AsyncWriter")
{
@Override
public void run()
{
try
{
asyncWrite(in);
}
catch (IOException ex)
{
OM.LOG.error(ex);
throw WrappedException.wrap(ex);
}
finally
{
latch.countDown();
}
}
};
thread.setDaemon(true);
thread.start();
}
@Override
public void close() throws IOException
{
super.close();
try
{
latch.await();
}
catch (InterruptedException ex)
{
throw WrappedException.wrap(ex);
}
}
protected abstract void asyncWrite(Reader in) throws IOException;
}