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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.
*
*/
using System;
using System.IO;
using System.Text;
using org.apache.qpid.transport.network;
using Frame = org.apache.qpid.transport.network.Frame;
namespace org.apache.qpid.transport
{
/// <summary> ProtocolHeader
///
/// </summary>
public sealed class ProtocolHeader : INetworkEvent, IProtocolEvent
{
private readonly char[] AMQP = new char[] {'A', 'M', 'Q', 'P'};
private const byte CLASS = 1;
private readonly byte instance;
private readonly byte major;
private readonly byte minor;
private int channel;
public ProtocolHeader(byte instance, byte major, byte minor)
{
this.instance = instance;
this.major = major;
this.minor = minor;
}
public ProtocolHeader(int instance, int major, int minor) : this((byte)instance, (byte)major, (byte)minor)
{
}
#region INetworkEvent Methods
public void ProcessNetworkEvent(INetworkDelegate ndelegate)
{
ndelegate.Init(this);
}
#endregion
#region IProtocolEvent Methods
public int Channel
{
get
{
return channel;
}
set
{
channel = value;
}
}
public byte EncodedTrack
{
get
{
return Frame.L1;
}
set { throw new NotImplementedException(); }
}
public void ProcessProtocolEvent<C>(C context, IProtocolDelegate<C> protocoldelegate)
{
protocoldelegate.Init(context, this);
}
#endregion
public byte Instance
{
get { return instance; }
}
public byte Major
{
get { return major; }
}
public byte Minor
{
get { return minor; }
}
public MemoryStream ToMemoryStream()
{
MemoryStream buf = new MemoryStream(8);
BinaryWriter writer = new BinaryWriter(buf);
writer.Write(AMQP);
writer.Write(CLASS);
writer.Write(instance);
writer.Write((sbyte) major);
writer.Write((sbyte) minor);
return buf;
}
public override String ToString()
{
return String.Format("AMQP.{0:d} {1:d}-{2:d}", instance, major, minor);
}
}
}
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