org.xnio.conduits.MessageStreamSinkConduit Maven / Gradle / Ivy
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*
* 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 org.xnio.Buffers;
import org.xnio.channels.StreamSourceChannel;
/**
* A stream sink conduit which wraps each write into a single message.
*
* @author David M. Lloyd
*/
public final class MessageStreamSinkConduit extends AbstractSinkConduit implements StreamSinkConduit {
/**
* Construct a new instance.
*
* @param next the delegate conduit to set
*/
public MessageStreamSinkConduit(final MessageSinkConduit next) {
super(next);
}
public long transferFrom(final FileChannel src, final long position, final long count) throws IOException {
return src.transferTo(position, count, new ConduitWritableByteChannel(this));
}
public long transferFrom(final StreamSourceChannel source, final long count, final ByteBuffer throughBuffer) throws IOException {
return Conduits.transfer(source, count, throughBuffer, this);
}
public int write(final ByteBuffer src) throws IOException {
final int remaining = src.remaining();
return next.send(src) ? remaining : 0;
}
public long write(final ByteBuffer[] srcs, final int offs, final int len) throws IOException {
final long remaining = Buffers.remaining(srcs, offs, len);
return next.send(srcs, offs, len) ? remaining : 0L;
}
@Override
public int writeFinal(ByteBuffer src) throws IOException {
return Conduits.writeFinalBasic(this, src);
}
@Override
public long writeFinal(ByteBuffer[] srcs, int offset, int length) throws IOException {
return Conduits.writeFinalBasic(this, srcs, offset, length);
}
}