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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.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 bidirectional message channel assembled from a readable and writable message channel.
*
* @author David M. Lloyd
*/
public class AssembledMessageChannel implements MessageChannel {
private final CloseableChannel closeable;
private final ReadableMessageChannel readable;
private final WritableMessageChannel writable;
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 readable the read channel
* @param writable the write channel
*/
public AssembledMessageChannel(final CloseableChannel closeable, final ReadableMessageChannel readable, final WritableMessageChannel writable) {
if (readable.getWorker() != writable.getWorker() || readable.getWorker() != closeable.getWorker()) {
throw msg.differentWorkers();
}
this.closeable = closeable;
this.readable = readable;
this.writable = writable;
readSetter = ChannelListeners.getDelegatingSetter(readable.getReadSetter(), this);
writeSetter = ChannelListeners.getDelegatingSetter(writable.getWriteSetter(), this);
closeSetter = ChannelListeners.getDelegatingSetter(closeable.getCloseSetter(), this);
}
/**
* Construct a new instance.
*
* @param readable the read channel
* @param writable the write channel
*/
public AssembledMessageChannel(final ReadableMessageChannel readable, final WritableMessageChannel writable) {
this(new AssembledChannel(readable, writable), readable, writable);
}
public XnioIoThread getIoThread() {
// both should be the same
return readable.getIoThread();
}
// Read side
public ChannelListener.Setter getReadSetter() {
return readSetter;
}
public void suspendReads() {
readable.suspendReads();
}
public void resumeReads() {
readable.resumeReads();
}
public boolean isReadResumed() {
return readable.isReadResumed();
}
public void wakeupReads() {
readable.wakeupReads();
}
public void shutdownReads() throws IOException {
readable.shutdownReads();
}
public void awaitReadable() throws IOException {
readable.awaitReadable();
}
public void awaitReadable(final long time, final TimeUnit timeUnit) throws IOException {
readable.awaitReadable(time, timeUnit);
}
@Deprecated
public XnioExecutor getReadThread() {
return readable.getReadThread();
}
public int receive(final ByteBuffer buffer) throws IOException {
return readable.receive(buffer);
}
public long receive(final ByteBuffer[] buffers) throws IOException {
return readable.receive(buffers);
}
public long receive(final ByteBuffer[] buffers, final int offs, final int len) throws IOException {
return readable.receive(buffers, offs, len);
}
// Write side
public ChannelListener.Setter getWriteSetter() {
return writeSetter;
}
public void suspendWrites() {
writable.suspendWrites();
}
public void resumeWrites() {
writable.resumeWrites();
}
public boolean isWriteResumed() {
return writable.isWriteResumed();
}
public void wakeupWrites() {
writable.wakeupWrites();
}
public void shutdownWrites() throws IOException {
writable.shutdownWrites();
}
public void awaitWritable() throws IOException {
writable.awaitWritable();
}
public void awaitWritable(final long time, final TimeUnit timeUnit) throws IOException {
writable.awaitWritable(time, timeUnit);
}
@Deprecated
public XnioExecutor getWriteThread() {
return writable.getWriteThread();
}
public boolean send(final ByteBuffer buffer) throws IOException {
return writable.send(buffer);
}
public boolean send(final ByteBuffer[] buffers) throws IOException {
return writable.send(buffers);
}
public boolean send(final ByteBuffer[] buffers, final int offs, final int len) throws IOException {
return writable.send(buffers, offs, len);
}
@Override
public boolean sendFinal(ByteBuffer buffer) throws IOException {
return writable.sendFinal(buffer);
}
@Override
public boolean sendFinal(ByteBuffer[] buffers) throws IOException {
return writable.sendFinal(buffers);
}
@Override
public boolean sendFinal(ByteBuffer[] buffers, int offs, int len) throws IOException {
return writable.sendFinal(buffers, offs, len);
}
public boolean flush() throws IOException {
return writable.flush();
}
// Single side
public ChannelListener.Setter getCloseSetter() {
return closeSetter;
}
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);
}
}
