mcs/class/System.ServiceModel/System.ServiceModel/ChannelFactory_1.cs

   1 //
   2 // generic ChannelFactory_1.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.ObjectModel;
  30 using System.ServiceModel.Channels;
  31 using System.ServiceModel.Description;
  32 using System.ServiceModel.Dispatcher;
  33
  34 namespace System.ServiceModel
  35 {
  36         // LAMESPEC: TChannel should have been defined as "where TChannel : IClientChannel".
  37         // The returned channel is actually used as IClientChannel.
  38         // (That's also likely why the type parameter name is TChannel, not TContract.)
  39         public class ChannelFactory<TChannel>
  40                 : ChannelFactory, IChannelFactory<TChannel>
  41         {
  42                 public ChannelFactory ()
  43                         : this ("*")
  44                 {
  45                 }
  46
  47                 protected ChannelFactory (Type type)
  48                 {
  49                         if (type == null)
  50                                 throw new ArgumentNullException ("type");
  51                         if (!type.IsInterface)
  52                                 throw new InvalidOperationException ("The type argument to the generic ChannelFactory constructor must be an interface type.");
  53
  54                         InitializeEndpoint (CreateDescription ());
  55                 }
  56
  57                 public ChannelFactory (string endpointConfigurationName)
  58                 {
  59                         if (endpointConfigurationName == null)
  60                                 throw new ArgumentNullException ("endpointConfigurationName");
  61
  62                         InitializeEndpoint (endpointConfigurationName, null);
  63                 }
  64
  65                 public ChannelFactory (string endpointConfigurationName,
  66                         EndpointAddress remoteAddress)
  67                 {
  68                         if (endpointConfigurationName == null)
  69                                 throw new ArgumentNullException ("endpointConfigurationName");
  70
  71                         InitializeEndpoint (endpointConfigurationName, remoteAddress);
  72                 }
  73
  74                 public ChannelFactory (ServiceEndpoint endpoint)
  75                 {
  76                         if (endpoint == null)
  77                                 throw new ArgumentNullException ("serviceEndpoint");
  78
  79                         InitializeEndpoint (endpoint);
  80                 }
  81
  82                 public ChannelFactory (Binding binding, string remoteAddress)
  83                         : this (binding, new EndpointAddress (remoteAddress))
  84                 {
  85                 }
  86
  87                 public ChannelFactory (Binding binding)
  88                         : this (binding, (EndpointAddress) null)
  89                 {
  90                 }
  91
  92                 public ChannelFactory (Binding binding, EndpointAddress remoteAddress)
  93                         : this (typeof (TChannel))
  94                 {
  95                         if (binding == null)
  96                                 throw new ArgumentNullException ();
  97
  98                         Endpoint.Binding = binding;
  99                         Endpoint.Address = remoteAddress;
 100                 }
 101
 102                 internal object OwnerClientBase { get; set; }
 103
 104                 public TChannel CreateChannel ()
 105                 {
 106                         return CreateChannel (Endpoint.Address);
 107                 }
 108
 109                 public TChannel CreateChannel (EndpointAddress address)
 110                 {
 111                         return CreateChannel (address, null);
 112                 }
 113
 114                 static TChannel CreateChannelCore (ChannelFactory<TChannel> cf, Func<ChannelFactory<TChannel>, TChannel> f)
 115                 {
 116                         var ch = f (cf);
 117                         ((CommunicationObject) (object) ch).Closed += delegate { cf.Close (); };
 118                         return ch;
 119                 }
 120
 121                 public static TChannel CreateChannel (Binding binding, EndpointAddress address)
 122                 {
 123                         return CreateChannelCore (new ChannelFactory<TChannel> (binding, address), f => f.CreateChannel ());
 124                 }
 125
 126                 public static TChannel CreateChannel (Binding binding, EndpointAddress address, Uri via)
 127                 {
 128                         return CreateChannelCore (new ChannelFactory<TChannel> (binding), f => f.CreateChannel (address, via));
 129                 }
 130
 131                 public virtual TChannel CreateChannel (EndpointAddress address, Uri via)
 132                 {
 133 #if MONOTOUCH
 134                         throw new InvalidOperationException ("MonoTouch does not support dynamic proxy code generation. Override this method or its caller to return specific client proxy instance");
 135 #else
 136                         EnsureOpened ();
 137                         Endpoint.Validate ();
 138                         Type type = ClientProxyGenerator.CreateProxyType (typeof (TChannel), Endpoint.Contract, false);
 139                         // in .NET and SL2, it seems that the proxy is RealProxy.
 140                         // But since there is no remoting in SL2 (and we have
 141                         // no special magic), we have to use different approach
 142                         // that should work either.
 143                         object proxy = Activator.CreateInstance (type, new object [] {Endpoint, this, address ?? Endpoint.Address, via});
 144                         return (TChannel) proxy;
 145 #endif
 146                 }
 147
 148                 protected static TChannel CreateChannel (string endpointConfigurationName)
 149                 {
 150                         return CreateChannelCore (new ChannelFactory<TChannel> (endpointConfigurationName), f => f.CreateChannel ());
 151                 }
 152
 153                 protected override ServiceEndpoint CreateDescription ()
 154                 {
 155                         ContractDescription cd = ContractDescription.GetContract (typeof (TChannel));
 156                         ServiceEndpoint ep = new ServiceEndpoint (cd);
 157                         ep.Behaviors.Add (new ClientCredentials ());
 158                         return ep;
 159                 }
 160         }
 161
 162         class DummyClientBase<T> : ClientBase<T> where T : class
 163         {
 164                 public DummyClientBase (ChannelFactory<T> factory)
 165                         : base (factory)
 166                 {
 167                 }
 168         }
 169 }