class/System.ServiceModel/System.ServiceModel.Channels/TcpChannelFactory.cs

   1 //
   2 // TcpChannelFactory.cs
   3 //
   4 // Author:
   5 //     Marcos Cobena (marcoscobena@gmail.com)
   6 //
   7 // Copyright 2007 Marcos Cobena (http://www.youcannoteatbits.org/)
   8 //
   9
  10 using System;
  11 using System.Collections.Generic;
  12 using System.Net;
  13 using System.Net.Security;
  14 using System.ServiceModel;
  15 using System.ServiceModel.Description;
  16 using System.ServiceModel.Security;
  17 using System.Text;
  18 using System.Xml;
  19
  20 namespace System.ServiceModel.Channels
  21 {
  22         internal class TcpChannelInfo
  23         {
  24                 public TcpChannelInfo (TransportBindingElement element, MessageEncoder encoder, XmlDictionaryReaderQuotas readerQuotas)
  25                 {
  26                         this.BindingElement = element;
  27                         this.MessageEncoder = encoder;
  28                         this.ReaderQuotas = readerQuotas ?? new XmlDictionaryReaderQuotas ();
  29                 }
  30
  31                 public TransportBindingElement BindingElement { get; private set; }
  32
  33                 public MessageEncoder MessageEncoder { get; private set; }
  34
  35                 public XmlDictionaryReaderQuotas ReaderQuotas { get; private set; }
  36         }
  37
  38         internal class TcpChannelFactory<TChannel> : TransportChannelFactoryBase<TChannel>
  39         {
  40                 TcpChannelInfo info;
  41
  42                 public TcpChannelFactory (TcpTransportBindingElement source, BindingContext ctx)
  43                         : base (source, ctx)
  44                 {
  45                         XmlDictionaryReaderQuotas quotas = null;
  46                         foreach (BindingElement be in ctx.Binding.Elements) {
  47                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
  48                                 if (mbe != null) {
  49                                         MessageEncoder = CreateEncoder<TChannel> (mbe);
  50                                         quotas = mbe.GetProperty<XmlDictionaryReaderQuotas> (ctx);
  51                                         break;
  52                                 }
  53                         }
  54                         if (MessageEncoder == null)
  55                                 MessageEncoder = new BinaryMessageEncoder ();
  56                         info = new TcpChannelInfo (source, MessageEncoder, quotas);
  57                 }
  58
  59                 protected override TChannel OnCreateChannel (
  60                         EndpointAddress address, Uri via)
  61                 {
  62                         ThrowIfDisposedOrNotOpen ();
  63
  64                         var targetUri = via ?? address.Uri;
  65                         if (info.BindingElement.Scheme != targetUri.Scheme)
  66                                 throw new ArgumentException (String.Format ("Argument EndpointAddress has unsupported URI scheme: {0}", targetUri.Scheme));
  67
  68                         Type t = typeof (TChannel);
  69
  70                         if (t == typeof (IDuplexSessionChannel))
  71                                 return (TChannel) (object) new TcpDuplexSessionChannel (this, info, address, targetUri);
  72
  73                         if (t == typeof (IRequestChannel))
  74                                 return (TChannel) (object) new TcpRequestChannel (this, info, address, targetUri);
  75
  76                         throw new InvalidOperationException (String.Format ("Channel type {0} is not supported.", typeof (TChannel).Name));
  77                 }
  78         }
  79 }