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                 static Uri CreateUri (string address)
  69                 {
  70                         if (address.Length > 0 && address[0] == '/')
  71                                 return new Uri (address.Substring (1), UriKind.Relative);
  72                         else
  73                                 return new Uri (address, UriKind.RelativeOrAbsolute);
  74                 }
  75
  76                 public ServiceEndpoint AddServiceEndpoint (
  77                         Type implementedContract, Binding binding, string address)
  78                 {
  79                         return AddServiceEndpoint (implementedContract, binding, CreateUri (address));
  80                 }
  81
  82                 public ServiceEndpoint AddServiceEndpoint (
  83                         Type implementedContract, Binding binding, string address, Uri listenUri)
  84                 {
  85                         return AddServiceEndpoint (implementedContract, binding,
  86                                 CreateUri (address), listenUri);
  87                 }
  88
  89                 public ServiceEndpoint AddServiceEndpoint (
  90                         Type implementedContract, Binding binding, Uri address)
  91                 {
  92                         return AddServiceEndpoint (implementedContract,
  93                                 binding, address, null);
  94                 }
  95
  96                 public ServiceEndpoint AddServiceEndpoint (
  97                         Type implementedContract, Binding binding, Uri address, Uri listenUri)
  98                 {
  99                         EndpointAddress ea = new EndpointAddress (BuildAbsoluteUri (address, binding));
 100
 101                         ContractDescription cd = GetExistingContract (implementedContract);
 102                         if (cd == null) {
 103                                 cd = ContractDescription.GetContract (implementedContract);
 104                                 contracts.Add (cd.ContractType.FullName, cd);
 105                         }
 106
 107                         return AddServiceEndpointCore (cd, binding, ea, listenUri);
 108                 }
 109
 110                 ContractDescription GetExistingContract (Type implementedContract)
 111                 {
 112                         foreach (ContractDescription cd in ImplementedContracts.Values)
 113                                 if (cd.ContractType == implementedContract)
 114                                         return cd;
 115                         return null;
 116                 }
 117
 118                 protected override ServiceDescription CreateDescription (
 119                         out IDictionary<string,ContractDescription> implementedContracts)
 120                 {
 121                         contracts = new Dictionary<string,ContractDescription> ();
 122                         implementedContracts = contracts;
 123                         ServiceDescription sd;
 124                         foreach (ContractDescription cd in GetServiceContractDescriptions())
 125                                 contracts.Add (cd.ContractType.FullName, cd);
 126
 127                         if (SingletonInstance != null) {
 128                                 sd = ServiceDescription.GetService (instance);
 129                         } else {
 130                                 sd = ServiceDescription.GetService (service_type);
 131                         }
 132
 133                         ServiceBehaviorAttribute sba = PopulateAttribute<ServiceBehaviorAttribute> ();
 134                         if (SingletonInstance != null)
 135                                 sba.SetWellKnownSingleton (SingletonInstance);
 136                         sd.Behaviors.Add (sba);
 137
 138                         return sd;
 139                 }
 140
 141                 IEnumerable<ContractDescription> GetServiceContractDescriptions () {
 142                         List<ContractDescription> contracts = new List<ContractDescription> ();
 143                         Dictionary<Type, ServiceContractAttribute> contractAttributes = ContractDescriptionGenerator.GetServiceContractAttributes (service_type);
 144                         foreach (Type contract in contractAttributes.Keys)
 145                                 contracts.Add( ContractDescriptionGenerator.GetContract (contract, service_type));
 146                         return contracts;
 147                 }
 148
 149                 TAttr PopulateAttribute<TAttr> ()
 150                 {
 151                         object [] atts = service_type.GetCustomAttributes (typeof (TAttr), false);
 152                         return (TAttr) (atts.Length > 0 ? atts [0] : Activator.CreateInstance (typeof (TAttr)));
 153                 }
 154
 155                 protected void InitializeDescription (Type serviceType, UriSchemeKeyedCollection baseAddresses)
 156                 {
 157                         if (!serviceType.IsClass)
 158                                 throw new ArgumentException ("ServiceHost only supports 'class' service types.");
 159
 160                         service_type = serviceType;
 161
 162                         InitializeDescription (baseAddresses);
 163                 }
 164
 165                 protected void InitializeDescription (object serviceInstance, UriSchemeKeyedCollection baseAddresses)
 166                 {
 167                         instance = serviceInstance;
 168                         InitializeDescription (serviceInstance.GetType (), baseAddresses);
 169                 }
 170         }
 171 }