Facilities/Wcf/Castle.Facilities.WcfIntegration/WindsorInstanceProvider.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 using Castle.MicroKernel;
  16
  17 namespace Castle.Facilities.WcfIntegration
  18 {
  19         using System;
  20         using System.ServiceModel;
  21         using System.ServiceModel.Channels;
  22         using System.ServiceModel.Dispatcher;
  23         using Castle.Windsor;
  24
  25         /// <summary>
  26         /// Initialize a service using Windsor
  27         /// </summary>
  28         public class WindsorInstanceProvider : IInstanceProvider
  29         {
  30                 private readonly Type contractType;
  31                 private readonly IKernel kernel;
  32                 private readonly Type serviceType;
  33
  34                 /// <summary>
  35                 /// Initializes a new instance of the <see cref="T:Castle.Facilities.WcfIntegration.WindsorInstanceProvider" /> class.
  36                 /// </summary>
  37                 public WindsorInstanceProvider(IKernel kernel, Type contractType, Type serviceType)
  38                 {
  39                         this.kernel = kernel;
  40                         this.contractType = contractType;
  41                         this.serviceType = serviceType;
  42                 }
  43
  44                 /// <summary>
  45                 /// Returns a service object given the specified <see cref="T:System.ServiceModel.InstanceContext"></see> object.
  46                 /// </summary>
  47                 ///
  48                 /// <returns>
  49                 /// A user-defined service object.
  50                 /// </returns>
  51                 ///
  52                 /// <param name="instanceContext">The current <see cref="T:System.ServiceModel.InstanceContext"></see> object.</param>
  53                 public object GetInstance(InstanceContext instanceContext)
  54                 {
  55                         return GetInstance(instanceContext, null);
  56                 }
  57
  58                 /// <summary>
  59                 /// Returns a service object given the specified <see cref="T:System.ServiceModel.InstanceContext"></see> object.
  60                 /// </summary>
  61                 ///
  62                 /// <returns>
  63                 /// The service object.
  64                 /// </returns>
  65                 ///
  66                 /// <param name="message">The message that triggered the creation of a service object.</param>
  67                 /// <param name="instanceContext">The current <see cref="T:System.ServiceModel.InstanceContext"></see> object.</param>
  68                 public object GetInstance(InstanceContext instanceContext, Message message)
  69                 {
  70                         if (kernel.HasComponent(contractType) || !kernel.HasComponent(serviceType))
  71                         {
  72                                 return kernel.Resolve(contractType);
  73                         }
  74                         return kernel.Resolve(serviceType);
  75                 }
  76
  77                 /// <summary>
  78                 /// Called when an <see cref="T:System.ServiceModel.InstanceContext"></see> object recycles a service object.
  79                 /// </summary>
  80                 ///
  81                 /// <param name="instanceContext">The service's instance context.</param>
  82                 /// <param name="instance">The service object to be recycled.</param>
  83                 public void ReleaseInstance(InstanceContext instanceContext, object instance)
  84                 {
  85                         kernel.ReleaseComponent(instance);
  86                 }
  87         }
  88 }