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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.mina.common.ByteBuffer;
public class SmallCompositeAMQDataBlock extends AMQDataBlock implements EncodableAMQDataBlock
{
private AMQDataBlock _firstFrame;
private AMQDataBlock _block;
public SmallCompositeAMQDataBlock(AMQDataBlock block)
{
_block = block;
}
/**
* The encoded block will be logically first before the AMQDataBlocks which are encoded
* into the buffer afterwards.
* @param encodedBlock already-encoded data
* @param block a block to be encoded.
*/
public SmallCompositeAMQDataBlock(AMQDataBlock encodedBlock, AMQDataBlock block)
{
this(block);
_firstFrame = encodedBlock;
}
public AMQDataBlock getBlock()
{
return _block;
}
public AMQDataBlock getFirstFrame()
{
return _firstFrame;
}
public long getSize()
{
long frameSize = _block.getSize();
if (_firstFrame != null)
{
frameSize += _firstFrame.getSize();
}
return frameSize;
}
public void writePayload(ByteBuffer buffer)
{
if (_firstFrame != null)
{
_firstFrame.writePayload(buffer);
}
_block.writePayload(buffer);
}
public String toString()
{
if (_block == null)
{
return "No blocks contained in composite frame";
}
else
{
StringBuilder buf = new StringBuilder(this.getClass().getName());
buf.append("{encodedBlock=").append(_firstFrame);
buf.append(" _block=[").append(_block.toString()).append("]");
buf.append("}");
return buf.toString();
}
}
}
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