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/*
* JBoss, Home of Professional Open Source.
*
* Copyright 2012 Red Hat, Inc. and/or its affiliates, and individual
* contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.xnio.channels;
import static org.xnio._private.Messages.msg;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.util.concurrent.TimeUnit;
import org.xnio.ChannelListener;
import org.xnio.ChannelListeners;
import org.xnio.Option;
import org.xnio.XnioExecutor;
import org.xnio.XnioIoThread;
import org.xnio.XnioWorker;
/**
* A stream channel assembled from a stream source and stream sink.
*
* @author David M. Lloyd
*/
public class AssembledStreamChannel implements StreamChannel {
private final CloseableChannel closeable;
private final StreamSourceChannel source;
private final StreamSinkChannel sink;
private final ChannelListener.Setter readSetter;
private final ChannelListener.Setter writeSetter;
private final ChannelListener.Setter closeSetter;
/**
* Construct a new instance.
*
* @param closeable the single central closeable channel
* @param source the stream source channel
* @param sink the stream sink channel
*/
public AssembledStreamChannel(final CloseableChannel closeable, final StreamSourceChannel source, final StreamSinkChannel sink) {
if (source.getWorker() != sink.getWorker() || source.getWorker() != closeable.getWorker()) {
throw msg.differentWorkers();
}
this.closeable = closeable;
this.source = source;
this.sink = sink;
readSetter = ChannelListeners.getDelegatingSetter(source.getReadSetter(), this);
writeSetter = ChannelListeners.getDelegatingSetter(sink.getWriteSetter(), this);
closeSetter = ChannelListeners.getDelegatingSetter(closeable.getCloseSetter(), this);
}
/**
* Construct a new instance.
*
* @param source the stream source channel
* @param sink the stream sink channel
*/
public AssembledStreamChannel(final StreamSourceChannel source, final StreamSinkChannel sink) {
this(new AssembledChannel(source, sink), source, sink);
}
// Read side
public ChannelListener.Setter getReadSetter() {
return readSetter;
}
public void suspendReads() {
source.suspendReads();
}
public void resumeReads() {
source.resumeReads();
}
public boolean isReadResumed() {
return source.isReadResumed();
}
public void wakeupReads() {
source.wakeupReads();
}
public void shutdownReads() throws IOException {
source.shutdownReads();
}
public void awaitReadable() throws IOException {
source.awaitReadable();
}
public void awaitReadable(final long time, final TimeUnit timeUnit) throws IOException {
source.awaitReadable(time, timeUnit);
}
@Deprecated
public XnioExecutor getReadThread() {
return source.getReadThread();
}
public XnioIoThread getIoThread() {
return source.getIoThread();
}
public int read(final ByteBuffer dst) throws IOException {
return source.read(dst);
}
public long read(final ByteBuffer[] dsts, final int offset, final int length) throws IOException {
return source.read(dsts, offset, length);
}
public long read(final ByteBuffer[] dsts) throws IOException {
return source.read(dsts);
}
public long transferTo(final long position, final long count, final FileChannel target) throws IOException {
return source.transferTo(position, count, target);
}
public long transferTo(final long count, final ByteBuffer throughBuffer, final StreamSinkChannel target) throws IOException {
return source.transferTo(count, throughBuffer, target);
}
// Write side
public long transferFrom(final FileChannel src, final long position, final long count) throws IOException {
return sink.transferFrom(src, position, count);
}
public long transferFrom(final StreamSourceChannel source, final long count, final ByteBuffer throughBuffer) throws IOException {
return sink.transferFrom(source, count, throughBuffer);
}
public ChannelListener.Setter getWriteSetter() {
return writeSetter;
}
public int write(final ByteBuffer src) throws IOException {
return sink.write(src);
}
public long write(final ByteBuffer[] srcs, final int offset, final int length) throws IOException {
return sink.write(srcs, offset, length);
}
public long write(final ByteBuffer[] srcs) throws IOException {
return sink.write(srcs);
}
public void suspendWrites() {
sink.suspendWrites();
}
public void resumeWrites() {
sink.resumeWrites();
}
public boolean isWriteResumed() {
return sink.isWriteResumed();
}
public void wakeupWrites() {
sink.wakeupWrites();
}
public void shutdownWrites() throws IOException {
sink.shutdownWrites();
}
public void awaitWritable() throws IOException {
sink.awaitWritable();
}
public void awaitWritable(final long time, final TimeUnit timeUnit) throws IOException {
sink.awaitWritable(time, timeUnit);
}
@Deprecated
public XnioExecutor getWriteThread() {
return sink.getWriteThread();
}
public boolean flush() throws IOException {
return sink.flush();
}
// Single side
public ChannelListener.Setter getCloseSetter() {
return closeSetter;
}
@Override
public int writeFinal(ByteBuffer src) throws IOException {
return sink.writeFinal(src);
}
@Override
public long writeFinal(ByteBuffer[] srcs, int offset, int length) throws IOException {
return sink.writeFinal(srcs, offset, length);
}
@Override
public long writeFinal(ByteBuffer[] srcs) throws IOException {
return sink.writeFinal(srcs);
}
public XnioWorker getWorker() {
return closeable.getWorker();
}
public void close() throws IOException {
closeable.close();
}
public boolean isOpen() {
return closeable.isOpen();
}
public boolean supportsOption(final Option option) {
return closeable.supportsOption(option);
}
public T getOption(final Option option) throws IOException {
return closeable.getOption(option);
}
public T setOption(final Option option, final T value) throws IllegalArgumentException, IOException {
return closeable.setOption(option, value);
}
}
