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/*
*
* 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.
*
*/
package org.apache.qpid.framing;
import org.apache.qpid.AMQException;
import org.apache.qpid.protocol.AMQVersionAwareProtocolSession;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.IOException;
import java.nio.ByteBuffer;
public class ContentBody implements AMQBody
{
public static final byte TYPE = 3;
private byte[] _payload;
public ContentBody()
{
}
public ContentBody(DataInput buffer, long size) throws AMQFrameDecodingException, IOException
{
_payload = new byte[(int)size];
buffer.readFully(getPayload());
}
public ContentBody(byte[] payload)
{
_payload = payload;
}
public byte getFrameType()
{
return TYPE;
}
public int getSize()
{
return getPayload() == null ? 0 : getPayload().length;
}
public void writePayload(DataOutput buffer) throws IOException
{
buffer.write(getPayload());
}
public void handle(final int channelId, final AMQVersionAwareProtocolSession session)
throws AMQException
{
session.contentBodyReceived(channelId, this);
}
protected void populateFromBuffer(DataInputStream buffer, long size) throws AMQFrameDecodingException, IOException
{
if (size > 0)
{
_payload = new byte[(int)size];
buffer.read(getPayload());
}
}
public void reduceBufferToFit()
{
}
public byte[] getPayload()
{
return _payload;
}
private static class BufferContentBody implements AMQBody
{
private final int _length;
private final int _offset;
private final ByteBuffer _buf;
private BufferContentBody( ByteBuffer buf, int offset, int length)
{
_length = length;
_offset = offset;
_buf = buf;
}
public byte getFrameType()
{
return TYPE;
}
public int getSize()
{
return _length;
}
public void writePayload(DataOutput buffer) throws IOException
{
if(_buf.hasArray())
{
buffer.write(_buf.array(), _buf.arrayOffset() + _offset, _length);
}
else
{
byte[] data = new byte[_length];
ByteBuffer buf = _buf.duplicate();
buf.position(_offset);
buf.limit(_offset+_length);
buf.get(data);
buffer.write(data);
}
}
public void handle(int channelId, AMQVersionAwareProtocolSession amqProtocolSession) throws AMQException
{
throw new RuntimeException("Buffered Body only to be used for outgoing data");
}
}
public static AMQFrame createAMQFrame(int channelId, ByteBuffer buf, int offset, int length)
{
return new AMQFrame(channelId, new BufferContentBody(buf, offset, length));
}
public static AMQFrame createAMQFrame(int channelId, ContentBody body)
{
return new AMQFrame(channelId, body);
}
}
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