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/*
* JBoss, Home of Professional Open Source
*
* Copyright 2013 Red Hat, Inc. and/or its affiliates.
*
* 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.conduits;
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.Option;
import org.xnio.XnioExecutor;
import org.xnio.XnioIoThread;
import org.xnio.XnioWorker;
import org.xnio.channels.CloseListenerSettable;
import org.xnio.channels.Configurable;
import org.xnio.channels.StreamSinkChannel;
import org.xnio.channels.StreamSourceChannel;
import org.xnio.channels.WriteListenerSettable;
/**
* A stream sink channel which wraps a stream sink conduit.
*
* @author David M. Lloyd
*/
public final class ConduitStreamSinkChannel implements StreamSinkChannel, WriteListenerSettable, CloseListenerSettable, Cloneable {
private final Configurable configurable;
private StreamSinkConduit conduit;
private ChannelListener writeListener;
private ChannelListener closeListener;
/**
* Construct a new instance.
*
* @param configurable the configurable to delegate configuration requests to
* @param conduit the initial conduit to use for data transport
*/
public ConduitStreamSinkChannel(final Configurable configurable, final StreamSinkConduit conduit) {
this.configurable = configurable;
this.conduit = conduit;
conduit.setWriteReadyHandler(new WriteReadyHandler.ChannelListenerHandler(this));
}
/**
* Get the underlying conduit for this channel.
*
* @return the underlying conduit for this channel
*/
public StreamSinkConduit getConduit() {
return conduit;
}
/**
* Set the underlying conduit for this channel.
*
* @param conduit the underlying conduit for this channel
*/
public void setConduit(final StreamSinkConduit conduit) {
this.conduit = conduit;
}
public ChannelListener getWriteListener() {
return writeListener;
}
public void setWriteListener(final ChannelListener writeListener) {
this.writeListener = writeListener;
}
public ChannelListener getCloseListener() {
return closeListener;
}
public void setCloseListener(final ChannelListener closeListener) {
this.closeListener = closeListener;
}
public ChannelListener.Setter getWriteSetter() {
return new WriteListenerSettable.Setter(this);
}
public ChannelListener.Setter getCloseSetter() {
return new CloseListenerSettable.Setter(this);
}
@Override
public int writeFinal(ByteBuffer src) throws IOException {
return conduit.writeFinal(src);
}
@Override
public long writeFinal(ByteBuffer[] srcs, int offset, int length) throws IOException {
return conduit.writeFinal(srcs, offset, length);
}
@Override
public long writeFinal(ByteBuffer[] srcs) throws IOException {
return conduit.writeFinal(srcs, 0, srcs.length);
}
public void suspendWrites() {
conduit.suspendWrites();
}
public void resumeWrites() {
conduit.resumeWrites();
}
public void wakeupWrites() {
conduit.wakeupWrites();
}
public boolean isWriteResumed() {
return conduit.isWriteResumed();
}
public void awaitWritable() throws IOException {
conduit.awaitWritable();
}
public void awaitWritable(final long time, final TimeUnit timeUnit) throws IOException {
conduit.awaitWritable(time, timeUnit);
}
public long transferFrom(final FileChannel src, final long position, final long count) throws IOException {
return conduit.transferFrom(src, position, count);
}
public long transferFrom(final StreamSourceChannel source, final long count, final ByteBuffer throughBuffer) throws IOException {
return conduit.transferFrom(source, count, throughBuffer);
}
public int write(final ByteBuffer dst) throws IOException {
return conduit.write(dst);
}
public long write(final ByteBuffer[] srcs) throws IOException {
return conduit.write(srcs, 0, srcs.length);
}
public long write(final ByteBuffer[] dsts, final int offs, final int len) throws IOException {
return conduit.write(dsts, offs, len);
}
public boolean flush() throws IOException {
return conduit.flush();
}
public boolean supportsOption(final Option option) {
return configurable.supportsOption(option);
}
public T getOption(final Option option) throws IOException {
return configurable.getOption(option);
}
public T setOption(final Option option, final T value) throws IllegalArgumentException, IOException {
return configurable.setOption(option, value);
}
public void shutdownWrites() throws IOException {
conduit.terminateWrites();
}
public boolean isOpen() {
return ! conduit.isWriteShutdown();
}
public void close() throws IOException {
conduit.truncateWrites();
}
@Deprecated
public XnioExecutor getWriteThread() {
return conduit.getWriteThread();
}
public XnioIoThread getIoThread() {
return conduit.getWriteThread();
}
public XnioWorker getWorker() {
return conduit.getWorker();
}
/**
* Duplicate this channel. Changing the delegate conduit in one channel will not affect the other.
*
* @return the cloned channel
*/
public ConduitStreamSinkChannel clone() {
try {
return (ConduitStreamSinkChannel) super.clone();
} catch (CloneNotSupportedException e) {
throw new IllegalStateException(e);
}
}
}
