Facilities/DynamicLoader/Castle.Facilities.DynamicLoader/DynamicLoaderRegistry.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 namespace Castle.Facilities.DynamicLoader
  16 {
  17         using System;
  18         using System.Collections.Generic;
  19
  20         using Castle.MicroKernel.Facilities;
  21
  22         /// <summary>
  23         /// Stores instances of <see cref="RemoteLoader"/>.
  24         /// </summary>
  25         public class DynamicLoaderRegistry : IDisposable
  26         {
  27                 private Dictionary<string, RemoteLoader> loaders = new Dictionary<string, RemoteLoader>();
  28
  29                 /// <summary>
  30                 /// Register a new loader, for the specified <paramref name="domainId"/>.
  31                 /// </summary>
  32                 public void RegisterLoader(string domainId, RemoteLoader loader)
  33                 {
  34                         if (loaders == null)
  35                                 throw new ObjectDisposedException("DynamicLoaderRegistry");
  36
  37                         loaders.Add(domainId, loader);
  38                 }
  39
  40                 /// <summary>
  41                 /// Gets the <see cref="RemoteLoader"/> instance for the specified <paramref name="domainId"/>.
  42                 /// </summary>
  43                 public RemoteLoader GetLoader(string domainId)
  44                 {
  45                         if (loaders == null)
  46                                 throw new ObjectDisposedException("DynamicLoaderRegistry");
  47
  48                         RemoteLoader loader;
  49                         if (!loaders.TryGetValue(domainId, out loader))
  50                                 throw new FacilityException("Domain not found: " + domainId);
  51
  52                         return loader;
  53                 }
  54
  55                 /// <summary>
  56                 /// Registers a specific component on a specific domain.
  57                 /// </summary>
  58                 /// <remarks>
  59                 /// The implementation simply calls <see cref="GetLoader"/> to get the correct
  60                 /// <see cref="RemoteLoader"/>, then add the component to the <see cref="RemoteLoader.Kernel"/>.
  61                 /// </remarks>
  62                 public void RegisterComponentOnDomain(string domainId, string key, Type service, Type component)
  63                 {
  64                         if (loaders == null)
  65                                 throw new ObjectDisposedException("DynamicLoaderRegistry");
  66
  67                         GetLoader(domainId).Kernel.AddComponent(key, service, component);
  68                 }
  69
  70                 /// <summary>
  71                 /// Implementation of <see cref="IDisposable"/>.
  72                 /// </summary>
  73                 public void Dispose()
  74                 {
  75                         foreach (RemoteLoader loader in loaders.Values)
  76                         {
  77                                 loader.Kernel.Parent.RemoveChildKernel(loader.Kernel);
  78
  79                                 loader.Dispose();
  80
  81                                 AppDomain.Unload(loader.AppDomain);
  82                         }
  83
  84                         loaders.Clear();
  85                         loaders = null;
  86                 }
  87         }
  88 }