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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 AMQFrame extends AMQDataBlock implements EncodableAMQDataBlock
{
private final int _channel;
private final AMQBody _bodyFrame;
public static final byte FRAME_END_BYTE = (byte) 0xCE;
public AMQFrame(final int channel, final AMQBody bodyFrame)
{
_channel = channel;
_bodyFrame = bodyFrame;
}
public AMQFrame(final ByteBuffer in, final int channel, final long bodySize, final BodyFactory bodyFactory) throws AMQFrameDecodingException
{
this._channel = channel;
this._bodyFrame = bodyFactory.createBody(in,bodySize);
}
public long getSize()
{
return 1 + 2 + 4 + _bodyFrame.getSize() + 1;
}
public static final int getFrameOverhead()
{
return 1 + 2 + 4 + 1;
}
public void writePayload(ByteBuffer buffer)
{
buffer.put(_bodyFrame.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, _channel);
EncodingUtils.writeUnsignedInteger(buffer, _bodyFrame.getSize());
_bodyFrame.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
}
public final int getChannel()
{
return _channel;
}
public final AMQBody getBodyFrame()
{
return _bodyFrame;
}
public String toString()
{
return "Frame channelId: " + _channel + ", bodyFrame: " + String.valueOf(_bodyFrame);
}
public static void writeFrame(ByteBuffer buffer, final int channel, AMQBody body)
{
buffer.put(body.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, channel);
EncodingUtils.writeUnsignedInteger(buffer, body.getSize());
body.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
}
public static void writeFrames(ByteBuffer buffer, final int channel, AMQBody body1, AMQBody body2)
{
buffer.put(body1.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, channel);
EncodingUtils.writeUnsignedInteger(buffer, body1.getSize());
body1.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
buffer.put(body2.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, channel);
EncodingUtils.writeUnsignedInteger(buffer, body2.getSize());
body2.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
}
public static void writeFrames(ByteBuffer buffer, final int channel, AMQBody body1, AMQBody body2, AMQBody body3)
{
buffer.put(body1.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, channel);
EncodingUtils.writeUnsignedInteger(buffer, body1.getSize());
body1.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
buffer.put(body2.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, channel);
EncodingUtils.writeUnsignedInteger(buffer, body2.getSize());
body2.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
buffer.put(body3.getFrameType());
EncodingUtils.writeUnsignedShort(buffer, channel);
EncodingUtils.writeUnsignedInteger(buffer, body3.getSize());
body3.writePayload(buffer);
buffer.put(FRAME_END_BYTE);
}
}
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