/* | |
* 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.Net.Sockets; | |
using org.apache.qpid.transport.util; | |
namespace org.apache.qpid.transport.network.io | |
{ | |
/// <summary> | |
/// This class provides a socket based transport using sync io classes. | |
/// | |
/// The following params are configurable via JVM arguments | |
/// TCP_NO_DELAY - qpid.tcpNoDelay | |
/// SO_RCVBUF - qpid.readBufferSize | |
/// SO_SNDBUF - qpid.writeBufferSize | |
/// </summary> | |
public sealed class IoTransport : IIoTransport | |
{ | |
// constants | |
private const int DEFAULT_READ_WRITE_BUFFER_SIZE = 64*1024; | |
private const int TIMEOUT = 60000; | |
private const int QUEUE_SIZE = 1000; | |
// props | |
private static readonly Logger log = Logger.get(typeof (IoTransport)); | |
private Stream m_stream; | |
private IoSender m_sender; | |
private Receiver<ReceivedPayload<MemoryStream>> m_receiver; | |
private TcpClient m_socket; | |
private Connection m_con; | |
public static Connection connect(String host, int port, ConnectionDelegate conndel) | |
{ | |
IoTransport transport = new IoTransport(host, port, conndel); | |
return transport.Connection; | |
} | |
public IoTransport(String host, int port, ConnectionDelegate conndel) | |
{ | |
createSocket(host, port); | |
Sender = new IoSender(this, QUEUE_SIZE, TIMEOUT); | |
Receiver = new IoReceiver(Stream, Socket.ReceiveBufferSize * 2, TIMEOUT); | |
Assembler assembler = new Assembler(); | |
InputHandler inputHandler = new InputHandler(InputHandler.State.PROTO_HDR); | |
Connection = new Connection(assembler, new Disassembler(Sender, 64 * 1024 - 1), conndel); | |
// Input handler listen to Receiver events | |
Receiver.Received += inputHandler.On_ReceivedBuffer; | |
// Assembler listen to inputhandler events | |
inputHandler.ReceivedEvent += assembler.On_ReceivedEvent; | |
// Connection listen to asembler protocol event | |
Receiver.Closed += Connection.On_ReceivedClosed; | |
Receiver.Exception += Connection.On_ReceivedException; | |
inputHandler.HandlerClosed += Connection.On_ReceivedClosed; | |
inputHandler.ExceptionProcessing += Connection.On_ReceivedException; | |
assembler.HandlerClosed += Connection.On_ReceivedClosed; | |
assembler.ExceptionProcessing += Connection.On_ReceivedException; | |
assembler.ReceivedEvent += Connection.On_ReceivedEvent; | |
} | |
public Connection Connection | |
{ | |
get { return m_con; } | |
set { m_con = value; } | |
} | |
public Receiver<ReceivedPayload<MemoryStream>> Receiver | |
{ | |
get { return m_receiver; } | |
set { m_receiver = value; } | |
} | |
public IoSender Sender | |
{ | |
get { return m_sender; } | |
set { m_sender = value; } | |
} | |
public Stream Stream | |
{ | |
get { return m_stream; } | |
set { m_stream = value; } | |
} | |
public TcpClient Socket | |
{ | |
get { return m_socket; } | |
set { m_socket = value; } | |
} | |
#region Private Support Functions | |
private void createSocket(String host, int port) | |
{ | |
try | |
{ | |
TcpClient socket = new TcpClient(); | |
String noDelay = Environment.GetEnvironmentVariable("qpid.tcpNoDelay"); | |
String writeBufferSize = Environment.GetEnvironmentVariable("qpid.writeBufferSize"); | |
String readBufferSize = Environment.GetEnvironmentVariable("qpid.readBufferSize"); | |
socket.NoDelay = noDelay != null && bool.Parse(noDelay); | |
socket.ReceiveBufferSize = readBufferSize == null ? DEFAULT_READ_WRITE_BUFFER_SIZE : int.Parse(readBufferSize); | |
socket.SendBufferSize = writeBufferSize == null ? DEFAULT_READ_WRITE_BUFFER_SIZE : int.Parse(writeBufferSize); | |
log.debug("NoDelay : {0}", socket.NoDelay); | |
log.debug("ReceiveBufferSize : {0}", socket.ReceiveBufferSize); | |
log.debug("SendBufferSize : {0}", socket.SendBufferSize); | |
log.debug("Openning connection with host : {0}; port: {1}", host, port); | |
socket.Connect(host, port); | |
Socket = socket; | |
Stream = socket.GetStream(); | |
} | |
catch (SocketException e) | |
{ | |
Console.WriteLine(e.StackTrace); | |
throw new TransportException("Error connecting to broker", e); | |
} | |
catch (IOException e) | |
{ | |
throw new TransportException("Error connecting to broker", e); | |
} | |
} | |
#endregion | |
} | |
} |