| /* |
| * |
| * 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.bytebuffer.QpidByteBuffer; |
| import org.apache.qpid.transport.ByteBufferSender; |
| |
| public class AMQFrame extends AMQDataBlock implements EncodableAMQDataBlock |
| { |
| private static final int HEADER_SIZE = 7; |
| 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 long getSize() |
| { |
| return 1 + 2 + 4 + _bodyFrame.getSize() + 1; |
| } |
| |
| public static final int getFrameOverhead() |
| { |
| return 1 + 2 + 4 + 1; |
| } |
| |
| |
| private static final QpidByteBuffer FRAME_END_BYTE_BUFFER = QpidByteBuffer.allocateDirect(1); |
| static |
| { |
| FRAME_END_BYTE_BUFFER.put(FRAME_END_BYTE); |
| FRAME_END_BYTE_BUFFER.flip(); |
| } |
| |
| @Override |
| public long writePayload(final ByteBufferSender sender) |
| { |
| QpidByteBuffer frameHeader = QpidByteBuffer.allocate(sender.isDirectBufferPreferred(), HEADER_SIZE); |
| |
| frameHeader.put(_bodyFrame.getFrameType()); |
| frameHeader.putUnsignedShort(_channel); |
| frameHeader.putUnsignedInt((long) _bodyFrame.getSize()); |
| frameHeader.flip(); |
| sender.send(frameHeader); |
| frameHeader.dispose(); |
| long size = 8 + _bodyFrame.writePayload(sender); |
| |
| sender.send(FRAME_END_BYTE_BUFFER.duplicate()); |
| return size; |
| } |
| |
| public final int getChannel() |
| { |
| return _channel; |
| } |
| |
| public final AMQBody getBodyFrame() |
| { |
| return _bodyFrame; |
| } |
| |
| public String toString() |
| { |
| return "Frame channelId: " + _channel + ", bodyFrame: " + String.valueOf(_bodyFrame); |
| } |
| |
| } |