mcs/class/System.ServiceModel/System.ServiceModel/ServiceHost.cs

   1 //
   2 // ServiceHost.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
  36 namespace System.ServiceModel
  37 {
  38         public class ServiceHost : ServiceHostBase
  39         {
  40                 Type service_type;
  41                 object instance;
  42                 Dictionary<string,ContractDescription> contracts;
  43
  44                 protected ServiceHost ()
  45                 {
  46                 }
  47
  48                 public ServiceHost (object serviceInstance,
  49                         params Uri [] baseAddresses)
  50                 {
  51                         if (serviceInstance == null)
  52                                 throw new ArgumentNullException ("serviceInstance");
  53                         InitializeDescription (serviceInstance,
  54                                 new UriSchemeKeyedCollection (baseAddresses));
  55                 }
  56
  57                 public ServiceHost (Type serviceType,
  58                         params Uri [] baseAddresses)
  59                 {
  60                         InitializeDescription (serviceType,
  61                                 new UriSchemeKeyedCollection (baseAddresses));
  62                 }
  63
  64                 public object SingletonInstance {
  65                         get { return instance; }
  66                 }
  67
  68                 public ServiceEndpoint AddServiceEndpoint (
  69                         Type implementedContract, Binding binding, string address)
  70                 {
  71                         return AddServiceEndpoint (implementedContract, binding,
  72                                 new Uri (address, UriKind.RelativeOrAbsolute));
  73                 }
  74
  75                 public ServiceEndpoint AddServiceEndpoint (
  76                         Type implementedContract, Binding binding, string address, Uri listenUri)
  77                 {
  78                         return AddServiceEndpoint (implementedContract, binding,
  79                                 new Uri (address, UriKind.RelativeOrAbsolute), listenUri);
  80                 }
  81
  82                 public ServiceEndpoint AddServiceEndpoint (
  83                         Type implementedContract, Binding binding, Uri address)
  84                 {
  85                         return AddServiceEndpoint (implementedContract,
  86                                 binding, address, null);
  87                 }
  88
  89                 public ServiceEndpoint AddServiceEndpoint (
  90                         Type implementedContract, Binding binding, Uri address, Uri listenUri)
  91                 {
  92                         EndpointAddress ea = new EndpointAddress (BuildAbsoluteUri (address, binding));
  93
  94                         ContractDescription cd = GetExistingContract (implementedContract);
  95                         if (cd == null) {
  96                                 cd = ContractDescription.GetContract (implementedContract);
  97                                 contracts.Add (cd.ContractType.FullName, cd);
  98                         }
  99
 100                         return AddServiceEndpointCore (cd, binding, ea, listenUri);
 101                 }
 102
 103                 ContractDescription GetExistingContract (Type implementedContract)
 104                 {
 105                         foreach (ContractDescription cd in ImplementedContracts.Values)
 106                                 if (cd.ContractType == implementedContract)
 107                                         return cd;
 108                         return null;
 109                 }
 110
 111                 protected override ServiceDescription CreateDescription (
 112                         out IDictionary<string,ContractDescription> implementedContracts)
 113                 {
 114                         contracts = new Dictionary<string,ContractDescription> ();
 115                         implementedContracts = contracts;
 116                         ServiceDescription sd;
 117                         foreach (ContractDescription cd in GetServiceContractDescriptions())
 118                                 contracts.Add (cd.ContractType.FullName, cd);
 119
 120                         if (SingletonInstance != null) {
 121                                 sd = ServiceDescription.GetService (instance);
 122                         } else {
 123                                 sd = ServiceDescription.GetService (service_type);
 124                         }
 125
 126                         ServiceBehaviorAttribute sba = PopulateAttribute<ServiceBehaviorAttribute> ();
 127                         if (SingletonInstance != null)
 128                                 sba.SetWellKnownSingleton (SingletonInstance);
 129                         sd.Behaviors.Add (sba);
 130
 131                         return sd;
 132                 }
 133
 134                 IEnumerable<ContractDescription> GetServiceContractDescriptions () {
 135                         List<ContractDescription> contracts = new List<ContractDescription> ();
 136                         Dictionary<Type, ServiceContractAttribute> contractAttributes = ContractDescriptionGenerator.GetServiceContractAttributes (service_type);
 137                         foreach (Type contract in contractAttributes.Keys)
 138                                 contracts.Add( ContractDescriptionGenerator.GetContract (contract, service_type));
 139                         return contracts;
 140                 }
 141
 142                 TAttr PopulateAttribute<TAttr> ()
 143                 {
 144                         object [] atts = service_type.GetCustomAttributes (typeof (TAttr), false);
 145                         return (TAttr) (atts.Length > 0 ? atts [0] : Activator.CreateInstance (typeof (TAttr)));
 146                 }
 147
 148                 protected void InitializeDescription (Type serviceType, UriSchemeKeyedCollection baseAddresses)
 149                 {
 150                         if (!serviceType.IsClass)
 151                                 throw new ArgumentException ("ServiceHost only supports 'class' service types.");
 152
 153                         service_type = serviceType;
 154
 155                         InitializeDescription (baseAddresses);
 156                 }
 157
 158                 protected void InitializeDescription (object serviceInstance, UriSchemeKeyedCollection baseAddresses)
 159                 {
 160                         instance = serviceInstance;
 161                         InitializeDescription (serviceInstance.GetType (), baseAddresses);
 162                 }
 163         }
 164 }