mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery.VersionCD1/DiscoveryTargetClientCD1.cs

   1 //
   2 // Author: Atsushi Enomoto <atsushi@ximian.com>
   3 //
   4 // Copyright (C) 2009,2010 Novell, Inc (http://www.novell.com)
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the
   8 // "Software"), to deal in the Software without restriction, including
   9 // without limitation the rights to use, copy, modify, merge, publish,
  10 // distribute, sublicense, and/or sell copies of the Software, and to
  11 // permit persons to whom the Software is furnished to do so, subject to
  12 // the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 //
  25 using System;
  26 using System.Collections.Generic;
  27 using System.Collections.ObjectModel;
  28 using System.ComponentModel;
  29 using System.Linq;
  30 using System.ServiceModel;
  31 using System.ServiceModel.Channels;
  32 using System.ServiceModel.Description;
  33 using System.ServiceModel.Dispatcher;
  34 using System.Threading;
  35
  36 namespace System.ServiceModel.Discovery.VersionCD1
  37 {
  38         internal class DiscoveryTargetClientCD1 : DuplexClientBase<IDiscoveryTargetContractCD1>, DiscoveryClient.IDiscoveryCommon
  39         {
  40                 public DiscoveryTargetClientCD1 (ServiceEndpoint endpoint)
  41                         : this (new DiscoveryTargetCallbackCD1 (), endpoint)
  42                 {
  43                 }
  44
  45                 DiscoveryTargetClientCD1 (DiscoveryTargetCallbackCD1 instance, ServiceEndpoint endpoint)
  46                         : base (instance, endpoint)
  47                 {
  48                         instance.ReplyFindCompleted += delegate (MessageContractsCD1.FindResponse response) {
  49                                 find_completed = delegate { return response; };
  50                                 reply_find_handle.Set ();
  51                         };
  52                         instance.ReplyResolveCompleted += delegate (MessageContractsCD1.ResolveResponse response) {
  53                                 resolve_completed = delegate { return response; };
  54                                 reply_resolve_handle.Set ();
  55                         };
  56                 }
  57
  58                 // Find
  59
  60                 Func<FindCriteria,FindResponse> find_delegate;
  61                 Func<MessageContractsCD1.FindResponse> find_completed;
  62                 ManualResetEvent reply_find_handle = new ManualResetEvent (false);
  63
  64                 public IAsyncResult BeginFind (FindCriteria criteria, AsyncCallback callback, object state)
  65                 {
  66                         if (find_delegate == null)
  67                                 find_delegate = new Func<FindCriteria,FindResponse> (Find);
  68                         return find_delegate.BeginInvoke (criteria, callback, state);
  69                 }
  70
  71                 public FindResponse EndFind (IAsyncResult result)
  72                 {
  73                         return find_delegate.EndInvoke (result);
  74                 }
  75
  76                 FindResponse Find (FindCriteria criteria)
  77                 {
  78                         var req = new MessageContractsCD1.FindRequest () { Body = new FindCriteriaCD1 (criteria) };
  79                         Channel.BeginFind (req, delegate (IAsyncResult result) {
  80                                 Channel.EndFind (result);
  81                         }, null);
  82
  83                         if (!reply_find_handle.WaitOne (InnerChannel.OperationTimeout))
  84                                 throw new EndpointNotFoundException ("The discovery client could not receive Find operation response within the operation timeout.");
  85                         try {
  86                                 var ir = find_completed ();
  87                                 var ret = new FindResponse ();
  88                                 foreach (var fr in ir.Body)
  89                                         ret.Endpoints.Add (fr.ToEndpointDiscoveryMetadata ());
  90                                 return ret;
  91                         } finally {
  92                                 find_completed = null;
  93                         }
  94                 }
  95
  96                 // Resolve
  97
  98                 Func<ResolveCriteria,ResolveResponse> resolve_delegate;
  99                 Func<MessageContractsCD1.ResolveResponse> resolve_completed;
 100                 ManualResetEvent reply_resolve_handle = new ManualResetEvent (false);
 101
 102                 public IAsyncResult BeginResolve (ResolveCriteria criteria, AsyncCallback callback, object state)
 103                 {
 104                         if (resolve_delegate == null)
 105                                 resolve_delegate = new Func<ResolveCriteria,ResolveResponse> (Resolve);
 106                         return resolve_delegate.BeginInvoke (criteria, callback, state);
 107                 }
 108
 109                 public ResolveResponse EndResolve (IAsyncResult result)
 110                 {
 111                         return resolve_delegate.EndInvoke (result);
 112                 }
 113
 114                 public ResolveResponse Resolve (ResolveCriteria criteria)
 115                 {
 116                         var req = new MessageContractsCD1.ResolveRequest () { Body = new ResolveCriteriaCD1 (criteria) };
 117                         Channel.BeginResolve (req, delegate (IAsyncResult result) {
 118                                 Channel.EndResolve (result);
 119                         }, null);
 120
 121                         if (!reply_resolve_handle.WaitOne (InnerChannel.OperationTimeout))
 122                                 throw new TimeoutException ();
 123                         try {
 124                                 var ir = resolve_completed ();
 125                                 var metadata = ir.Body.ToEndpointDiscoveryMetadata ();
 126                                 var sequence = ir.MessageSequence.ToDiscoveryMessageSequence ();
 127                                 return new ResolveResponse (metadata, sequence);
 128                         } finally {
 129                                 resolve_completed = null;
 130                         }
 131                 }
 132
 133                 internal class DiscoveryTargetCallbackCD1 : IDiscoveryTargetCallbackContractCD1
 134                 {
 135                         public event Action<MessageContractsCD1.FindResponse> ReplyFindCompleted;
 136                         public event Action<MessageContractsCD1.ResolveResponse> ReplyResolveCompleted;
 137
 138                         public void ReplyFind (MessageContractsCD1.FindResponse message)
 139                         {
 140                                 if (ReplyFindCompleted != null)
 141                                         ReplyFindCompleted (message);
 142                         }
 143
 144                         public void ReplyResolve (MessageContractsCD1.ResolveResponse message)
 145                         {
 146                                 if (ReplyResolveCompleted != null)
 147                                         ReplyResolveCompleted (message);
 148                         }
 149                 }
 150         }
 151 }