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package org.apache.qpid.nclient.util;
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
import java.io.EOFException;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import org.apache.qpid.transport.DeliveryProperties;
import org.apache.qpid.transport.MessageProperties;
import org.apache.qpid.transport.Header;
import org.apache.qpid.api.Message;
public class StreamingMessage extends ReadOnlyMessage implements Message
{
SocketChannel _socChannel;
private int _chunkSize;
private ByteBuffer _readBuf;
public Header getHeader() {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
public void setHeader(Header header) {
//To change body of implemented methods use File | Settings | File Templates.
}
public StreamingMessage(SocketChannel in,int chunkSize,DeliveryProperties deliveryProperties,MessageProperties messageProperties)throws IOException
{
_messageProperties = messageProperties;
_deliveryProperties = deliveryProperties;
_socChannel = in;
_chunkSize = chunkSize;
_readBuf = ByteBuffer.allocate(_chunkSize);
}
public void readData(byte[] target) throws IOException
{
throw new UnsupportedOperationException();
}
public ByteBuffer readData() throws IOException
{
if(_socChannel.isConnected() && _socChannel.isOpen())
{
_readBuf.clear();
_socChannel.read(_readBuf);
}
else
{
throw new EOFException("The underlying socket/channel has closed");
}
return _readBuf.duplicate();
}
/**
* This message is used by an application user to
* provide data to the client library using pull style
* semantics. Since the message is not transfered yet, it
* does not have a transfer id. Hence this method is not
* applicable to this implementation.
*/
public int getMessageTransferId()
{
throw new UnsupportedOperationException();
}
}
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