mcs/class/System.ServiceModel/System.ServiceModel/ServiceHostBase.cs

   1 //
   2 // ServiceHostBase.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2005-2006 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.Collections.ObjectModel;
  31 using System.ServiceModel.Channels;
  32 using System.ServiceModel.Configuration;
  33 using System.ServiceModel.Description;
  34 using System.ServiceModel.Dispatcher;
  35 using System.ServiceModel.Security;
  36 using System.Reflection;
  37
  38 namespace System.ServiceModel
  39 {
  40         public abstract class ServiceHostBase
  41                 : CommunicationObject, IExtensibleObject<ServiceHostBase>, IDisposable
  42         {
  43                 ServiceCredentials credentials;
  44                 ServiceDescription description;
  45                 UriSchemeKeyedCollection base_addresses;
  46                 TimeSpan open_timeout, close_timeout, instance_idle_timeout;
  47                 ServiceThrottle throttle;
  48                 List<InstanceContext> contexts;
  49                 ReadOnlyCollection<InstanceContext> exposed_contexts;
  50                 ChannelDispatcherCollection channel_dispatchers;
  51                 IDictionary<string,ContractDescription> contracts;
  52                 int flow_limit = int.MaxValue;
  53                 IExtensionCollection<ServiceHostBase> extensions;
  54
  55                 protected ServiceHostBase ()
  56                 {
  57                         open_timeout = DefaultOpenTimeout;
  58                         close_timeout = DefaultCloseTimeout;
  59
  60                         credentials = new ServiceCredentials ();
  61                         throttle = new ServiceThrottle ();
  62                         contexts = new List<InstanceContext> ();
  63                         exposed_contexts = new ReadOnlyCollection<InstanceContext> (contexts);
  64                         channel_dispatchers = new ChannelDispatcherCollection (this);
  65                 }
  66
  67                 public event EventHandler<UnknownMessageReceivedEventArgs>
  68                         UnknownMessageReceived;
  69
  70                 public ReadOnlyCollection<Uri> BaseAddresses {
  71                         get { return new ReadOnlyCollection<Uri> (base_addresses.InternalItems); }
  72                 }
  73
  74                 internal Uri CreateUri (string sheme, Uri relatieUri) {
  75                         Uri baseUri = base_addresses.Contains (sheme) ? base_addresses [sheme] : null;
  76
  77                         if (relatieUri == null)
  78                                 return baseUri;
  79                         if (relatieUri.IsAbsoluteUri)
  80                                 return relatieUri;
  81                         if (baseUri == null)
  82                                 return null;
  83                         return new Uri (baseUri, relatieUri);
  84                 }
  85
  86                 [MonoTODO]
  87                 public ChannelDispatcherCollection ChannelDispatchers {
  88                         get { return channel_dispatchers; }
  89                 }
  90
  91                 public ServiceAuthorizationBehavior Authorization {
  92                         get;
  93                         private set;
  94                 }
  95
  96                 [MonoTODO]
  97                 public ServiceCredentials Credentials {
  98                         get { return credentials; }
  99                 }
 100
 101                 public ServiceDescription Description {
 102                         get { return description; }
 103                 }
 104
 105                 protected IDictionary<string,ContractDescription> ImplementedContracts {
 106                         get { return contracts; }
 107                 }
 108
 109                 [MonoTODO]
 110                 public IExtensionCollection<ServiceHostBase> Extensions {
 111                         get {
 112                                 if (extensions == null)
 113                                         extensions = new ExtensionCollection<ServiceHostBase> (this);
 114                                 return extensions;
 115                         }
 116                 }
 117
 118                 protected internal override TimeSpan DefaultCloseTimeout {
 119                         get { return DefaultCommunicationTimeouts.Instance.CloseTimeout; }
 120                 }
 121
 122                 protected internal override TimeSpan DefaultOpenTimeout {
 123                         get { return DefaultCommunicationTimeouts.Instance.OpenTimeout; }
 124                 }
 125
 126                 public TimeSpan CloseTimeout {
 127                         get { return close_timeout; }
 128                         set { close_timeout = value; }
 129                 }
 130
 131                 public TimeSpan OpenTimeout {
 132                         get { return open_timeout; }
 133                         set { open_timeout = value; }
 134                 }
 135
 136                 public int ManualFlowControlLimit {
 137                         get { return flow_limit; }
 138                         set { flow_limit = value; }
 139                 }
 140
 141                 public ServiceEndpoint AddServiceEndpoint (
 142                         string implementedContract, Binding binding, string address)
 143                 {
 144                         return AddServiceEndpoint (implementedContract,
 145                                 binding,
 146                                 new Uri (address, UriKind.RelativeOrAbsolute));
 147                 }
 148
 149                 [MonoTODO]
 150                 public ServiceEndpoint AddServiceEndpoint (
 151                         string implementedContract, Binding binding,
 152                         string address, Uri listenUri)
 153                 {
 154                         Uri uri = new Uri (address, UriKind.RelativeOrAbsolute);
 155                         return AddServiceEndpoint (
 156                                 implementedContract, binding, uri, uri);
 157                 }
 158
 159                 [MonoTODO]
 160                 public ServiceEndpoint AddServiceEndpoint (
 161                         string implementedContract, Binding binding,
 162                         Uri address)
 163                 {
 164                         return AddServiceEndpoint (implementedContract, binding, address, address);
 165                 }
 166
 167                 [MonoTODO]
 168                 public ServiceEndpoint AddServiceEndpoint (
 169                         string implementedContract, Binding binding,
 170                         Uri address, Uri listenUri)
 171                 {
 172                         EndpointAddress ea = BuildEndpointAddress (address, binding);
 173                         ContractDescription cd = GetContract (implementedContract);
 174                         if (cd == null)
 175                                 throw new InvalidOperationException (String.Format ("Contract '{0}' was not found in the implemented contracts in this service host.", implementedContract));
 176                         return AddServiceEndpointCore (cd, binding, ea, listenUri);
 177                 }
 178
 179                 Type PopulateType (string typeName)
 180                 {
 181                         Type type = Type.GetType (typeName);
 182                         if (type != null)
 183                                 return type;
 184                         foreach (ContractDescription cd in ImplementedContracts.Values) {
 185                                 type = cd.ContractType.Assembly.GetType (typeName);
 186                                 if (type != null)
 187                                         return type;
 188                         }
 189                         return null;
 190                 }
 191
 192                 ContractDescription GetContract (string typeName)
 193                 {
 194                         //FIXME: hack hack hack
 195                         ImplementedContracts ["IHttpGetHelpPageAndMetadataContract"] =
 196                                 ContractDescription.GetContract (typeof (IHttpGetHelpPageAndMetadataContract));
 197
 198                         // FIXME: As long as I tried, *only* IMetadataExchange
 199                         // is the exception case that does not require full
 200                         // type name. Hence I treat it as a special case.
 201                         if (typeName == ServiceMetadataBehavior.MexContractName) {
 202                                 if (!Description.Behaviors.Contains (typeof (ServiceMetadataBehavior)) && Array.IndexOf (Description.ServiceType.GetInterfaces (), typeof (IMetadataExchange)) < 0)
 203                                         throw new InvalidOperationException (
 204                                                 "Add ServiceMetadataBehavior to the ServiceHost to add a endpoint for IMetadataExchange contract.");
 205
 206                                 ImplementedContracts [ServiceMetadataBehavior.MexContractName] =
 207                                         ContractDescription.GetContract (typeof (IMetadataExchange));
 208
 209                                 foreach (ContractDescription cd in ImplementedContracts.Values)
 210                                         if (cd.ContractType == typeof (IMetadataExchange))
 211                                                 return cd;
 212                                 return null;
 213                         }
 214
 215                         Type type = PopulateType (typeName);
 216                         if (type == null)
 217                                 return null;
 218
 219                         foreach (ContractDescription cd in ImplementedContracts.Values) {
 220                                 // FIXME: This check is a negative side effect
 221                                 // of the above hack.
 222                                 if (cd.ContractType == typeof (IMetadataExchange))
 223                                         continue;
 224
 225                                 if (cd.ContractType == type ||
 226                                     cd.ContractType.IsSubclassOf (type) ||
 227                                     type.IsInterface && cd.ContractType.GetInterface (type.FullName) == type)
 228                                         return cd;
 229                         }
 230                         return null;
 231                 }
 232
 233                 internal EndpointAddress BuildEndpointAddress (Uri address, Binding binding)
 234                 {
 235                         if (!address.IsAbsoluteUri) {
 236                                 // Find a Base address with matching scheme,
 237                                 // and build new absolute address
 238                                 if (!base_addresses.Contains (binding.Scheme))
 239                                         throw new InvalidOperationException (String.Format ("Could not find base address that matches Scheme {0} for endpoint {1}", binding.Scheme, binding.Name));
 240
 241                                 Uri baseaddr = base_addresses [binding.Scheme];
 242
 243                                 if (!baseaddr.AbsoluteUri.EndsWith ("/"))
 244                                         baseaddr = new Uri (baseaddr.AbsoluteUri + "/");
 245                                 address = new Uri (baseaddr, address);
 246                         }
 247                         return new EndpointAddress (address);
 248                 }
 249
 250                 internal ServiceEndpoint AddServiceEndpointCore (
 251                         ContractDescription cd, Binding binding, EndpointAddress address, Uri listenUri)
 252                 {
 253                         foreach (ServiceEndpoint e in Description.Endpoints)
 254                                 if (e.Contract == cd)
 255                                         return e;
 256                         ServiceEndpoint se = new ServiceEndpoint (cd, binding, address);
 257                         se.ListenUri = listenUri.IsAbsoluteUri ? listenUri : new Uri (address.Uri, listenUri);
 258                         Description.Endpoints.Add (se);
 259                         return se;
 260                 }
 261
 262                 [MonoTODO]
 263                 protected virtual void ApplyConfiguration ()
 264                 {
 265                         if (Description == null)
 266                                 throw new InvalidOperationException ("ApplyConfiguration requires that the Description property be initialized. Either provide a valid ServiceDescription in the CreateDescription method or override the ApplyConfiguration method to provide an alternative implementation");
 267
 268                         ServiceElement service = GetServiceElement ();
 269
 270                         //TODO: Should we call here LoadServiceElement ?
 271                         if (service != null) {
 272
 273                                 //base addresses
 274                                 HostElement host = service.Host;
 275                                 foreach (BaseAddressElement baseAddress in host.BaseAddresses) {
 276                                         this.base_addresses.Add (new Uri (baseAddress.BaseAddress));
 277                                 }
 278
 279                                 // services
 280                                 foreach (ServiceEndpointElement endpoint in service.Endpoints) {
 281                                         // FIXME: consider BindingName as well
 282                                         ServiceEndpoint se = AddServiceEndpoint (
 283                                                 endpoint.Contract,
 284                                                 ConfigUtil.CreateBinding (endpoint.Binding, endpoint.BindingConfiguration),
 285                                                 endpoint.Address.ToString ());
 286                                 }
 287                                 // behaviors
 288                                 // TODO: use EvaluationContext of ServiceElement.
 289                                 ServiceBehaviorElement behavior = ConfigUtil.BehaviorsSection.ServiceBehaviors.Find (service.BehaviorConfiguration);
 290                                 if (behavior != null) {
 291                                         for (int i = 0; i < behavior.Count; i++) {
 292                                                 BehaviorExtensionElement bxel = behavior [i];
 293                                                 IServiceBehavior b = (IServiceBehavior) behavior [i].CreateBehavior ();
 294                                                 if (b != null)
 295                                                         Description.Behaviors.Add (b);
 296                                         }
 297                                 }
 298                         }
 299                         // TODO: consider commonBehaviors here
 300
 301                         // ensure ServiceAuthorizationBehavior
 302                         Authorization = Description.Behaviors.Find<ServiceAuthorizationBehavior> ();
 303                         if (Authorization == null) {
 304                                 Authorization = new ServiceAuthorizationBehavior ();
 305                                 Description.Behaviors.Add (Authorization);
 306                         }
 307
 308                         // ensure ServiceDebugBehavior
 309                         ServiceDebugBehavior debugBehavior = Description.Behaviors.Find<ServiceDebugBehavior> ();
 310                         if (debugBehavior == null) {
 311                                 debugBehavior = new ServiceDebugBehavior ();
 312                                 Description.Behaviors.Add (debugBehavior);
 313                         }
 314                 }
 315
 316                 private ServiceElement GetServiceElement() {
 317                         Type serviceType = Description.ServiceType;
 318                         if (serviceType == null)
 319                                 return null;
 320
 321                         return ConfigUtil.ServicesSection.Services [serviceType.FullName];
 322                 }
 323
 324                 internal ContractDescription GetContract (string name, string ns)
 325                 {
 326                         foreach (ContractDescription d in ImplementedContracts.Values)
 327                                 if (d.Name == name && d.Namespace == ns)
 328                                         return d;
 329                         return null;
 330                 }
 331
 332                 protected abstract ServiceDescription CreateDescription (
 333                         out IDictionary<string,ContractDescription> implementedContracts);
 334
 335                 [MonoTODO]
 336                 protected void InitializeDescription (UriSchemeKeyedCollection baseAddresses)
 337                 {
 338                         this.base_addresses = baseAddresses;
 339                         IDictionary<string,ContractDescription> retContracts;
 340                         description = CreateDescription (out retContracts);
 341                         contracts = retContracts;
 342
 343                         ApplyConfiguration ();
 344                 }
 345
 346                 [MonoTODO]
 347                 protected virtual void InitializeRuntime ()
 348                 {
 349                         //First validate the description, which should call all behaviors
 350                         //'Validate' method.
 351                         ValidateDescription ();
 352
 353                         //Build all ChannelDispatchers, one dispatcher per user configured EndPoint.
 354                         //We must keep thet ServiceEndpoints as a seperate collection, since the user
 355                         //can change the collection in the description during the behaviors events.
 356                         Dictionary<ServiceEndpoint, ChannelDispatcher> endPointToDispatcher = new Dictionary<ServiceEndpoint,ChannelDispatcher>();
 357                         ServiceEndpoint[] endPoints = new ServiceEndpoint[Description.Endpoints.Count];
 358                         Description.Endpoints.CopyTo (endPoints, 0);
 359                         foreach (ServiceEndpoint se in endPoints) {
 360                                 //Let all behaviors add their binding parameters
 361                                 BindingParameterCollection commonParams =
 362                                         new BindingParameterCollection ();
 363                                 AddBindingParameters (commonParams, se);
 364                                 ChannelDispatcher channel = BuildChannelDispatcher (se, commonParams);
 365                                 ChannelDispatchers.Add (channel);
 366                                 endPointToDispatcher[se] = channel;
 367                         }
 368
 369                         //After the ChannelDispatchers are created, and attached to the service host
 370                         //Apply dispatching behaviors.
 371                         foreach (IServiceBehavior b in Description.Behaviors)
 372                                 b.ApplyDispatchBehavior (Description, this);
 373
 374                         foreach(KeyValuePair<ServiceEndpoint, ChannelDispatcher> val in endPointToDispatcher)
 375                                 ApplyDispatchBehavior(val.Value, val.Key);
 376                 }
 377
 378                 private void ValidateDescription () {
 379                         foreach (IServiceBehavior b in Description.Behaviors)
 380                                 b.Validate (Description, this);
 381                         foreach (ServiceEndpoint endPoint in Description.Endpoints)
 382                                 endPoint.Validate ();
 383                 }
 384
 385                 private void ApplyDispatchBehavior (ChannelDispatcher dispatcher, ServiceEndpoint endPoint) {
 386                         foreach (IContractBehavior b in endPoint.Contract.Behaviors)
 387                                 b.ApplyDispatchBehavior (endPoint.Contract, endPoint, dispatcher.Endpoints[0].DispatchRuntime);
 388                         foreach (IEndpointBehavior b in endPoint.Behaviors)
 389                                 b.ApplyDispatchBehavior (endPoint, dispatcher.Endpoints [0]);
 390                         foreach (OperationDescription operation in endPoint.Contract.Operations) {
 391                                 foreach (IOperationBehavior b in operation.Behaviors)
 392                                         b.ApplyDispatchBehavior (operation, dispatcher.Endpoints [0].DispatchRuntime.Operations [operation.Name]);
 393                         }
 394
 395                 }
 396
 397                 internal ChannelDispatcher BuildChannelDispatcher (ServiceEndpoint se, BindingParameterCollection commonParams) {
 398
 399                         //User the binding parameters to build the channel listener and Dispatcher
 400                         IChannelListener lf = BuildListener (se, commonParams);
 401                         ChannelDispatcher cd = new ChannelDispatcher (
 402                                 lf, se.Binding.Name);
 403                         cd.MessageVersion = se.Binding.MessageVersion;
 404                         if (cd.MessageVersion == null)
 405                                 cd.MessageVersion = MessageVersion.Default;
 406
 407                         //Attach one EndpointDispacher to the ChannelDispatcher
 408                         EndpointDispatcher endpoint_dispatcher =
 409                                 new EndpointDispatcher (se.Address, se.Contract.Name, se.Contract.Namespace);
 410                         endpoint_dispatcher.ContractFilter = GetContractFilter (se.Contract);
 411                         endpoint_dispatcher.ChannelDispatcher = cd;
 412                         cd.Endpoints.Add (endpoint_dispatcher);
 413
 414                         //Build the dispatch operations
 415                         DispatchRuntime db = endpoint_dispatcher.DispatchRuntime;
 416                         foreach (OperationDescription od in se.Contract.Operations)
 417                                 if (!db.Operations.Contains (od.Name))
 418                                         PopulateDispatchOperation (db, od);
 419
 420                         return cd;
 421                 }
 422
 423                 private MessageFilter GetContractFilter (ContractDescription contractDescription)
 424                 {
 425                         List<string> actions = new List<string> ();
 426                         foreach (OperationDescription od in contractDescription.Operations)
 427                                 foreach (MessageDescription md in od.Messages)
 428                                         if (md.Direction == MessageDirection.Input)
 429                                                 if (md.Action == "*")
 430                                                         return new MatchAllMessageFilter ();
 431                                                 else
 432                                                         actions.Add (md.Action);
 433
 434                         return new ActionMessageFilter (actions.ToArray ());
 435                 }
 436
 437                 private void AddBindingParameters (BindingParameterCollection commonParams, ServiceEndpoint endPoint) {
 438
 439                         commonParams.Add (ChannelProtectionRequirements.CreateFromContract (endPoint.Contract));
 440                         foreach (IServiceBehavior b in Description.Behaviors)
 441                                 b.AddBindingParameters (Description, this, Description.Endpoints, commonParams);
 442
 443                         foreach (IContractBehavior b in endPoint.Contract.Behaviors)
 444                                 b.AddBindingParameters (endPoint.Contract, endPoint, commonParams);
 445                         foreach (IEndpointBehavior b in endPoint.Behaviors)
 446                                 b.AddBindingParameters (endPoint, commonParams);
 447                         foreach (OperationDescription operation in endPoint.Contract.Operations) {
 448                                 foreach (IOperationBehavior b in operation.Behaviors)
 449                                         b.AddBindingParameters (operation, commonParams);
 450                         }
 451                 }
 452
 453                 void PopulateDispatchOperation (DispatchRuntime db, OperationDescription od) {
 454                         string reqA = null, resA = null;
 455                         foreach (MessageDescription m in od.Messages) {
 456                                 if (m.Direction == MessageDirection.Input)
 457                                         reqA = m.Action;
 458                                 else
 459                                         resA = m.Action;
 460                         }
 461                         DispatchOperation o =
 462                                 od.IsOneWay ?
 463                                 new DispatchOperation (db, od.Name, reqA) :
 464                                 new DispatchOperation (db, od.Name, reqA, resA);
 465                         bool has_void_reply = false;
 466                         foreach (MessageDescription md in od.Messages) {
 467                                 if (md.Direction == MessageDirection.Input &&
 468                                         md.Body.Parts.Count == 1 &&
 469                                         md.Body.Parts [0].Type == typeof (Message))
 470                                         o.DeserializeRequest = false;
 471                                 if (md.Direction == MessageDirection.Output &&
 472                                         md.Body.ReturnValue != null) {
 473                                         if (md.Body.ReturnValue.Type == typeof (Message))
 474                                                 o.SerializeReply = false;
 475                                         else if (md.Body.ReturnValue.Type == typeof (void))
 476                                                 has_void_reply = true;
 477                                 }
 478                         }
 479
 480                         // Setup Invoker
 481                         // FIXME: support async method
 482                         if (od.SyncMethod != null)
 483                                 o.Invoker = new SyncMethodInvoker (od.SyncMethod);
 484                         else
 485                                 o.Invoker = new AsyncMethodInvoker (od.BeginMethod, od.EndMethod);
 486
 487                         // Setup Formater
 488                         o.Formatter = BaseMessagesFormatter.Create (od);
 489
 490                         if (o.Action == "*" && o.ReplyAction == "*") {
 491                                 //Signature : Message  (Message)
 492                                 //          : void  (Message)
 493                                 //FIXME: void (IChannel)
 494                                 if (!o.DeserializeRequest && (!o.SerializeReply || has_void_reply))
 495                                         db.UnhandledDispatchOperation = o;
 496                         }
 497
 498                         db.Operations.Add (o);
 499                 }
 500
 501                 [MonoTODO]
 502                 protected void LoadConfigurationSection (ServiceElement element)
 503                 {
 504                         ServicesSection services = ConfigUtil.ServicesSection;
 505                 }
 506
 507                 void DoOpen (TimeSpan timeout)
 508                 {
 509                         for (int i = 0; i < ChannelDispatchers.Count; i++)
 510                                 ChannelDispatchers [i].Open (timeout);
 511                 }
 512
 513                 IChannelListener BuildListener (ServiceEndpoint se,
 514                         BindingParameterCollection pl)
 515                 {
 516                         Binding b = se.Binding;
 517                         if (b.CanBuildChannelListener<IReplySessionChannel> (pl))
 518                                 return b.BuildChannelListener<IReplySessionChannel> (se.ListenUri, "", se.ListenUriMode, pl);
 519                         if (b.CanBuildChannelListener<IReplyChannel> (pl))
 520                                 return b.BuildChannelListener<IReplyChannel> (se.ListenUri, "", se.ListenUriMode, pl);
 521                         if (b.CanBuildChannelListener<IInputSessionChannel> (pl))
 522                                 return b.BuildChannelListener<IInputSessionChannel> (se.ListenUri, "", se.ListenUriMode, pl);
 523                         if (b.CanBuildChannelListener<IInputChannel> (pl))
 524                                 return b.BuildChannelListener<IInputChannel> (se.ListenUri, "", se.ListenUriMode, pl);
 525                         throw new InvalidOperationException ("None of the listener channel types is supported");
 526                 }
 527
 528                 [MonoTODO]
 529                 protected override sealed void OnAbort ()
 530                 {
 531                 }
 532
 533                 [MonoTODO]
 534                 protected override sealed IAsyncResult OnBeginClose (
 535                         TimeSpan timeout, AsyncCallback callback, object state)
 536                 {
 537                         throw new NotImplementedException ();
 538                 }
 539
 540                 [MonoTODO]
 541                 protected override sealed IAsyncResult OnBeginOpen (
 542                         TimeSpan timeout, AsyncCallback callback, object state)
 543                 {
 544                         throw new NotImplementedException ();
 545                 }
 546
 547                 [MonoTODO]
 548                 protected override void OnClose (TimeSpan timeout)
 549                 {
 550                         ReleasePerformanceCounters ();
 551                         List<ChannelDispatcherBase> l = new List<ChannelDispatcherBase> (ChannelDispatchers);
 552                         foreach (ChannelDispatcherBase e in l)
 553                                 e.Close ();
 554                 }
 555
 556                 protected override sealed void OnOpen (TimeSpan timeout)
 557                 {
 558                         InitializeRuntime ();
 559                         DoOpen (timeout);
 560                 }
 561
 562                 [MonoTODO]
 563                 protected override void OnEndClose (IAsyncResult result)
 564                 {
 565                         throw new NotImplementedException ();
 566                 }
 567
 568                 [MonoTODO]
 569                 protected override sealed void OnEndOpen (IAsyncResult result)
 570                 {
 571                         throw new NotImplementedException ();
 572                 }
 573
 574                 protected override void OnOpened ()
 575                 {
 576                 }
 577
 578                 [MonoTODO]
 579                 protected void ReleasePerformanceCounters ()
 580                 {
 581                 }
 582
 583                 void IDisposable.Dispose ()
 584                 {
 585                         Close ();
 586                 }
 587
 588                 class SyncMethodInvoker : IOperationInvoker
 589                 {
 590                         readonly MethodInfo _methodInfo;
 591                         public SyncMethodInvoker (MethodInfo methodInfo) {
 592                                 _methodInfo = methodInfo;
 593                         }
 594
 595                         #region IOperationInvoker Members
 596
 597                         public bool IsSynchronous {
 598                                 get { return true; }
 599                         }
 600
 601                         public object [] AllocateParameters () {
 602                                 return new object [_methodInfo.GetParameters ().Length];
 603                         }
 604
 605                         public object Invoke (object instance, object [] parameters)
 606             {
 607                                 return _methodInfo.Invoke (instance, parameters);
 608                         }
 609
 610                         public IAsyncResult InvokeBegin (object instance, object [] inputs, AsyncCallback callback, object state) {
 611                                 throw new NotSupportedException ();
 612                         }
 613
 614                         public object InvokeEnd (object instance, out object [] outputs, IAsyncResult result) {
 615                                 throw new NotSupportedException ();
 616                         }
 617
 618                         #endregion
 619                 }
 620
 621                 class AsyncMethodInvoker : IOperationInvoker
 622                 {
 623                         readonly MethodInfo _beginMethodInfo, _endMethodInfo;
 624                         public AsyncMethodInvoker (MethodInfo beginMethodInfo, MethodInfo endMethodInfo) {
 625                                 _beginMethodInfo = beginMethodInfo;
 626                                 _endMethodInfo = endMethodInfo;
 627                         }
 628
 629                         #region IOperationInvoker Members
 630
 631                         public bool IsSynchronous {
 632                                 get { return false; }
 633                         }
 634
 635                         public object [] AllocateParameters () {
 636                                 return new object [_beginMethodInfo.GetParameters ().Length - 2 + _endMethodInfo.GetParameters().Length-1];
 637                         }
 638
 639                         public object Invoke (object instance, object [] parameters) {
 640                                 throw new NotImplementedException ("Can't invoke async method synchronously");
 641                                 //BUGBUG: need to differentiate between input and output parameters.
 642                                 IAsyncResult asyncResult = InvokeBegin(instance, parameters, delegate(IAsyncResult ignore) { }, null);
 643                                 asyncResult.AsyncWaitHandle.WaitOne();
 644                                 return InvokeEnd(instance, out parameters, asyncResult);
 645                         }
 646
 647                         public IAsyncResult InvokeBegin (object instance, object [] inputs, AsyncCallback callback, object state) {
 648                                 if (inputs.Length + 2 != _beginMethodInfo.GetParameters ().Length)
 649                                         throw new ArgumentException ("Wrong number of input parameters");
 650                                 object [] fullargs = new object [_beginMethodInfo.GetParameters ().Length];
 651                                 Array.Copy (inputs, fullargs, inputs.Length);
 652                                 fullargs [inputs.Length] = callback;
 653                                 fullargs [inputs.Length + 1] = state;
 654                                 return (IAsyncResult) _beginMethodInfo.Invoke (instance, fullargs);
 655                         }
 656
 657                         public object InvokeEnd (object instance, out object [] outputs, IAsyncResult asyncResult) {
 658                                 outputs = new object [_endMethodInfo.GetParameters ().Length - 1];
 659                                 object [] fullargs = new object [_endMethodInfo.GetParameters ().Length];
 660                                 fullargs [outputs.Length] = asyncResult;
 661                                 object result = _endMethodInfo.Invoke (instance, fullargs);
 662                                 Array.Copy (fullargs, outputs, outputs.Length);
 663                                 return result;
 664                         }
 665
 666                         #endregion
 667                 }
 668         }
 669 }