diff options
Diffstat (limited to 'plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/io/AsyncOutputStream.java')
-rw-r--r-- | plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/io/AsyncOutputStream.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/io/AsyncOutputStream.java b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/io/AsyncOutputStream.java new file mode 100644 index 0000000000..6a2e2c01f8 --- /dev/null +++ b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/io/AsyncOutputStream.java @@ -0,0 +1,74 @@ +/** + * Copyright (c) 2004 - 2010 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.InputStream; +import java.io.PipedInputStream; +import java.io.PipedOutputStream; +import java.util.concurrent.CountDownLatch; + +/** + * @author Eike Stepper + * @since 3.1 + */ +public abstract class AsyncOutputStream extends PipedOutputStream +{ + private CountDownLatch latch = new CountDownLatch(1); + + public AsyncOutputStream() throws IOException + { + final PipedInputStream in = new PipedInputStream(this); + Thread thread = new Thread("AsyncOutputStream") + { + @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(InputStream in) throws IOException; +} |