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