| /* |
| * |
| * 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.server.protocol.v0_10.transport; |
| |
| import org.apache.qpid.server.bytebuffer.QpidByteBuffer; |
| |
| |
| /** |
| * ProtocolHeader |
| * |
| * @author Rafael H. Schloming |
| */ |
| |
| public final class ProtocolHeader implements NetworkEvent, ProtocolEvent |
| { |
| |
| private static final byte[] AMQP = {'A', 'M', 'Q', 'P' }; |
| private static final byte CLASS = 1; |
| |
| final private byte protoClass; |
| final private byte instance; |
| final private byte major; |
| final private byte minor; |
| private int channel; |
| |
| public ProtocolHeader(byte protoClass, byte instance, byte major, byte minor) |
| { |
| this.protoClass = protoClass; |
| this.instance = instance; |
| this.major = major; |
| this.minor = minor; |
| } |
| |
| public ProtocolHeader(int instance, int major, int minor) |
| { |
| this(CLASS, (byte) instance, (byte) major, (byte) minor); |
| } |
| |
| public byte getInstance() |
| { |
| return instance; |
| } |
| |
| public byte getMajor() |
| { |
| return major; |
| } |
| |
| public byte getMinor() |
| { |
| return minor; |
| } |
| |
| @Override |
| public int getChannel() |
| { |
| return channel; |
| } |
| |
| @Override |
| public void setChannel(int channel) |
| { |
| this.channel = channel; |
| } |
| |
| @Override |
| public byte getEncodedTrack() |
| { |
| return Frame.L1; |
| } |
| |
| @Override |
| public boolean isConnectionControl() |
| { |
| return false; |
| } |
| |
| public QpidByteBuffer toByteBuffer() |
| { |
| QpidByteBuffer buf = QpidByteBuffer.allocate(8); |
| buf.put(AMQP); |
| buf.put(protoClass); |
| buf.put(instance); |
| buf.put(major); |
| buf.put(minor); |
| buf.flip(); |
| return buf; |
| } |
| |
| @Override |
| public <C> void delegate(C context, ProtocolDelegate<C> delegate) |
| { |
| delegate.init(context, this); |
| } |
| |
| @Override |
| public void delegate(NetworkDelegate delegate) |
| { |
| delegate.init(this); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.format("AMQP.%d %d-%d", instance, major, minor); |
| } |
| |
| } |