mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Channels/DiscoveryChannelBase.cs

   1 //
   2 // RequestChannelBase.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 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.Generic;
  30 using System.Linq;
  31 using System.ServiceModel;
  32 using System.ServiceModel.Description;
  33 using System.ServiceModel.Discovery;
  34
  35 namespace System.ServiceModel.Channels
  36 {
  37         internal abstract class DiscoveryChannelBase : ChannelBase
  38         {
  39                 public DiscoveryChannelBase (ChannelManagerBase owner)
  40                         : base (owner)
  41                 {
  42                 }
  43
  44                 public TChannel CreateDiscoveryInnerChannel<TChannel> (DiscoveryChannelFactory<TChannel> factory)
  45                 {
  46                         // FIXME: use timeout
  47                         var client = new DiscoveryClient (factory.Source.DiscoveryEndpointProvider.GetDiscoveryEndpoint ());
  48                         var res = client.Find (factory.Source.FindCriteria);
  49
  50                         foreach (var edm in res.Endpoints) {
  51                                 try {
  52                                         // FIXME: find scheme-matching ListenUri
  53                                         return factory.InnerFactory.CreateChannel (edm.Address, edm.ListenUris.FirstOrDefault (u => true) ?? edm.Address.Uri);
  54                                 } catch (Exception) {
  55                                 }
  56                         }
  57                         throw new EndpointNotFoundException (String.Format ("Could not find usable endpoint in {0} endpoints returned by the discovery service.", res.Endpoints.Count));
  58                 }
  59         }
  60 }