org.xnio.conduits.MessageStreamSourceConduit Maven / Gradle / Ivy
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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 org.xnio.channels.StreamSinkChannel;
/**
* A stream source conduit which reads stream data from messages. The receive buffer should always be as large as
* the largest possible incoming message, or larger, to avoid data loss.
*
* @author David M. Lloyd
*/
public final class MessageStreamSourceConduit extends AbstractSourceConduit implements StreamSourceConduit {
/**
* Construct a new instance.
*
* @param next the delegate conduit to set
*/
public MessageStreamSourceConduit(final MessageSourceConduit next) {
super(next);
}
public long transferTo(final long position, final long count, final FileChannel target) throws IOException {
return target.transferFrom(new ConduitReadableByteChannel(this), position, count);
}
public long transferTo(final long count, final ByteBuffer throughBuffer, final StreamSinkChannel target) throws IOException {
return Conduits.transfer(this, count, throughBuffer, target);
}
public int read(final ByteBuffer dst) throws IOException {
return next.receive(dst);
}
public long read(final ByteBuffer[] dsts, final int offs, final int len) throws IOException {
return next.receive(dsts, offs, len);
}
}