class/System.ServiceModel/System.ServiceModel.Channels/PeerCustomResolverBindingElement.cs

   1 //
   2 // PeerCustomResolverBindingElement.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2009 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.Collections.ObjectModel;
  31 using System.Net.Security;
  32 using System.ServiceModel;
  33 using System.ServiceModel.Description;
  34 using System.ServiceModel.PeerResolvers;
  35 using System.Text;
  36 using System.Xml;
  37
  38 namespace System.ServiceModel.Channels
  39 {
  40         public class PeerCustomResolverBindingElement : PeerResolverBindingElement
  41         {
  42                 public PeerCustomResolverBindingElement ()
  43                 {
  44                         settings = new PeerCustomResolverSettings ();
  45                 }
  46
  47                 private PeerCustomResolverBindingElement (
  48                         PeerCustomResolverBindingElement other)
  49                         : base (other)
  50                 {
  51                         ReferralPolicy = other.ReferralPolicy;
  52                         settings = other.settings.Clone ();
  53                 }
  54
  55                 public PeerCustomResolverBindingElement (BindingContext context, PeerCustomResolverSettings settings)
  56                         : this (settings)
  57                 {
  58                         this.context = context;
  59                 }
  60
  61                 public PeerCustomResolverBindingElement (PeerCustomResolverSettings settings)
  62                 {
  63                         this.settings = settings;
  64                 }
  65
  66                 BindingContext context;
  67                 PeerCustomResolverSettings settings;
  68
  69                 [MonoTODO]
  70                 public override PeerReferralPolicy ReferralPolicy { get; set; }
  71
  72                 public override IChannelFactory<TChannel> BuildChannelFactory<TChannel> (
  73                         BindingContext context)
  74                 {
  75                         var cf = context.BuildInnerChannelFactory<TChannel> ();
  76                         var pcf = cf as PeerChannelFactory<TChannel>;
  77                         if (pcf != null)
  78                                 pcf.Resolver = CreatePeerResolver ();
  79                         return cf;
  80                 }
  81
  82                 public override IChannelListener<TChannel>
  83                         BuildChannelListener<TChannel> (
  84                         BindingContext context)
  85                 {
  86                         var cl = context.BuildInnerChannelListener<TChannel> ();
  87                         var pcl = cl as PeerChannelListener<TChannel>;
  88                         if (pcl != null)
  89                                 pcl.Resolver = CreatePeerResolver ();
  90                         return cl;
  91                 }
  92
  93                 public override BindingElement Clone ()
  94                 {
  95                         return new PeerCustomResolverBindingElement (this);
  96                 }
  97
  98                 public override PeerResolver CreatePeerResolver ()
  99                 {
 100                         if (settings != null && settings.Resolver != null)
 101                                 return settings.Resolver;
 102
 103                         var se = new ServiceEndpoint (ContractDescription.GetContract (typeof (IPeerResolverContract)), settings.Binding, settings.Address);
 104                         return new PeerCustomResolver (se);
 105                 }
 106
 107                 [MonoTODO]
 108                 public override T GetProperty<T> (BindingContext context)
 109                 {
 110                         throw new NotImplementedException ();
 111                 }
 112         }
 113
 114         internal interface ICustomPeerResolverClient : IPeerResolverContract, IClientChannel
 115         {
 116         }
 117
 118         internal class PeerCustomResolver : PeerResolver
 119         {
 120                 Guid client_id = Guid.NewGuid ();
 121                 ICustomPeerResolverClient client;
 122                 string preserved_mesh_id;
 123
 124                 public PeerCustomResolver (ServiceEndpoint endpoint)
 125                 {
 126                         if (endpoint == null)
 127                                 throw new ArgumentNullException ("endpoint");
 128                         client = new ChannelFactory<ICustomPeerResolverClient> (endpoint).CreateChannel ();
 129                 }
 130
 131                 public override bool CanShareReferrals {
 132                         get { return false; }
 133                 }
 134
 135                 public override object Register (string meshId,
 136                         PeerNodeAddress nodeAddress, TimeSpan timeout)
 137                 {
 138                         if (String.IsNullOrEmpty (meshId))
 139                                 throw new ArgumentNullException ("meshId");
 140                         if (nodeAddress == null)
 141                                 throw new ArgumentNullException ("nodeAddress");
 142                         if (timeout <= TimeSpan.Zero)
 143                                 throw new ArgumentException (String.Format ("Timeout value must be positive value. It was {0}", timeout));
 144
 145                         client.OperationTimeout = timeout;
 146                         preserved_mesh_id = meshId;
 147                         return client.Register (new RegisterInfo (client_id, meshId, nodeAddress)).RegistrationId;
 148                 }
 149
 150                 public override ReadOnlyCollection<PeerNodeAddress> Resolve (
 151                         string meshId, int maxAddresses, TimeSpan timeout)
 152                 {
 153                         if (String.IsNullOrEmpty (meshId))
 154                                 throw new ArgumentNullException ("meshId");
 155                         if (maxAddresses <= 0)
 156                                 throw new ArgumentOutOfRangeException ("maxAddresses must be positive integer");
 157                         if (timeout <= TimeSpan.Zero)
 158                                 throw new ArgumentException (String.Format ("Timeout value must be positive value. It was {0}", timeout));
 159
 160                         client.OperationTimeout = timeout;
 161                         return new ReadOnlyCollection<PeerNodeAddress> (client.Resolve (new ResolveInfo (client_id, meshId, maxAddresses)).Addresses ?? new PeerNodeAddress [0]);
 162                 }
 163
 164                 public override void Unregister (object registrationId,
 165                         TimeSpan timeout)
 166                 {
 167                         if (timeout <= TimeSpan.Zero)
 168                                 throw new ArgumentException (String.Format ("Timeout value must be positive value. It was {0}", timeout));
 169
 170                         client.OperationTimeout = timeout;
 171                         preserved_mesh_id = null;
 172                         client.Unregister (new UnregisterInfo (preserved_mesh_id, (Guid) registrationId));
 173                 }
 174
 175                 public override void Update (object registrationId,
 176                         PeerNodeAddress updatedNodeAddress, TimeSpan timeout)
 177                 {
 178                         if (timeout <= TimeSpan.Zero)
 179                                 throw new ArgumentException (String.Format ("Timeout value must be positive value. It was {0}", timeout));
 180
 181                         client.OperationTimeout = timeout;
 182                         client.Update (new UpdateInfo ((Guid) registrationId, client_id, preserved_mesh_id, updatedNodeAddress));
 183                 }
 184         }
 185 }