| /* |
| * |
| * 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.codec.MarkableDataInput; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| 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 MarkableDataInput in, final int channel, final long bodySize, final BodyFactory bodyFactory) throws AMQFrameDecodingException, IOException |
| { |
| 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(DataOutput buffer) throws IOException |
| { |
| buffer.writeByte(_bodyFrame.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, _channel); |
| EncodingUtils.writeUnsignedInteger(buffer, _bodyFrame.getSize()); |
| _bodyFrame.writePayload(buffer); |
| buffer.writeByte(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(DataOutput buffer, final int channel, AMQBody body) throws IOException |
| { |
| buffer.writeByte(body.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, channel); |
| EncodingUtils.writeUnsignedInteger(buffer, body.getSize()); |
| body.writePayload(buffer); |
| buffer.writeByte(FRAME_END_BYTE); |
| |
| } |
| |
| public static void writeFrames(DataOutput buffer, final int channel, AMQBody body1, AMQBody body2) throws IOException |
| { |
| buffer.writeByte(body1.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, channel); |
| EncodingUtils.writeUnsignedInteger(buffer, body1.getSize()); |
| body1.writePayload(buffer); |
| buffer.writeByte(FRAME_END_BYTE); |
| buffer.writeByte(body2.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, channel); |
| EncodingUtils.writeUnsignedInteger(buffer, body2.getSize()); |
| body2.writePayload(buffer); |
| buffer.writeByte(FRAME_END_BYTE); |
| |
| } |
| |
| public static void writeFrames(DataOutput buffer, final int channel, AMQBody body1, AMQBody body2, AMQBody body3) throws IOException |
| { |
| buffer.writeByte(body1.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, channel); |
| EncodingUtils.writeUnsignedInteger(buffer, body1.getSize()); |
| body1.writePayload(buffer); |
| buffer.writeByte(FRAME_END_BYTE); |
| buffer.writeByte(body2.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, channel); |
| EncodingUtils.writeUnsignedInteger(buffer, body2.getSize()); |
| body2.writePayload(buffer); |
| buffer.writeByte(FRAME_END_BYTE); |
| buffer.writeByte(body3.getFrameType()); |
| EncodingUtils.writeUnsignedShort(buffer, channel); |
| EncodingUtils.writeUnsignedInteger(buffer, body3.getSize()); |
| body3.writePayload(buffer); |
| buffer.writeByte(FRAME_END_BYTE); |
| |
| } |
| |
| } |