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 * 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
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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
/** * A bidirectional message channel assembled from a readable and writable message channel. * * @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a> */
public class AssembledMessageChannel implements MessageChannel { private final CloseableChannel closeable; private final ReadableMessageChannel readable; private final WritableMessageChannel writable; private final ChannelListener.Setter<AssembledMessageChannel> readSetter; private final ChannelListener.Setter<AssembledMessageChannel> writeSetter; private final ChannelListener.Setter<AssembledMessageChannel> closeSetter;
Construct a new instance.
Params:
  • closeable – the single central closeable channel
  • readable – the read channel
  • writable – the write channel
/** * 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.
Params:
  • readable – the read channel
  • writable – the write channel
/** * 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<? extends AssembledMessageChannel> 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<? extends AssembledMessageChannel> 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<? extends AssembledMessageChannel> 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> T getOption(final Option<T> option) throws IOException { return closeable.getOption(option); } public <T> T setOption(final Option<T> option, final T value) throws IllegalArgumentException, IOException { return closeable.setOption(option, value); } }