Experiments/Attic/MVC/Castle.MVC/ContainerWebAccessorUtil.cs

   1 #region Apache Notice
   2 /*****************************************************************************
   3  *
   4  * Castle.MVC
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  ********************************************************************************/
  19 #endregion
  20
  21 #region Autors
  22
  23 /************************************************
  24 * Hamilton Verissimo
  25 *************************************************/
  26 #endregion
  27
  28 #region Using
  29
  30 using System;
  31 using System.Web;
  32
  33 using Castle.Windsor;
  34 #endregion
  35
  36 namespace Castle.MVC
  37 {
  38
  39         /// <summary>
  40         /// Uses the HttpContext and the <see cref="IContainerAccessor"/>
  41         /// to access the container instance.
  42         /// </summary>
  43         public abstract class ContainerWebAccessorUtil
  44         {
  45                 /// <summary>
  46                 /// Obtains the conatainer form the application instance
  47                 /// </summary>
  48                 /// <returns>Retunr a IWindsorContainer</returns>
  49                 public static IWindsorContainer ObtainContainer()
  50                 {
  51                         IContainerAccessor containerAccessor =
  52                                 HttpContext.Current.ApplicationInstance as IContainerAccessor;
  53
  54                         if (containerAccessor == null)
  55                         {
  56                                 throw new ApplicationException("You must extend the HttpApplication in your web project " +
  57                                         "and implement the IContainerAccessor to properly expose your container instance");
  58                         }
  59
  60                         IWindsorContainer container = containerAccessor.Container;
  61
  62                         if (container == null)
  63                         {
  64                                 throw new ApplicationException("The container seems to be unavailable in " +
  65                                         "your HttpApplication subclass");
  66                         }
  67
  68                         return container;
  69                 }
  70         }
  71 }