InversionOfControl/Castle.MicroKernel/ModelBuilder/Inspectors/ConfigurationParametersInspector.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.MicroKernel.ModelBuilder.Inspectors
  16 {
  17         using System;
  18         using Castle.MicroKernel.Util;
  19         using Castle.Core;
  20         using Castle.Core.Configuration;
  21
  22         /// <summary>
  23         /// Check for a node 'parameters' within the component
  24         /// configuration. For each child it, a ParameterModel is created
  25         /// and added to ComponentModel's Parameters collection
  26         /// </summary>
  27         [Serializable]
  28         public class ConfigurationParametersInspector : IContributeComponentModelConstruction
  29         {
  30                 /// <summary>
  31                 /// Inspect the configuration associated with the component
  32                 /// and populates the parameter model collection accordingly
  33                 /// </summary>
  34                 /// <param name="kernel"></param>
  35                 /// <param name="model"></param>
  36                 public virtual void ProcessModel(IKernel kernel, ComponentModel model)
  37                 {
  38                         if (model.Configuration == null) return;
  39
  40                         IConfiguration parameters = model.Configuration.Children["parameters"];
  41
  42                         if (parameters == null) return;
  43
  44                         foreach(IConfiguration parameter in parameters.Children)
  45                         {
  46                                 String name = parameter.Name;
  47                                 String value = parameter.Value;
  48
  49                                 if (value == null && parameter.Children.Count != 0)
  50                                 {
  51                                         IConfiguration parameterValue = parameter.Children[0];
  52                                         model.Parameters.Add(name, parameterValue);
  53                                 }
  54                                 else
  55                                 {
  56                                         model.Parameters.Add(name, value);
  57                                 }
  58                         }
  59
  60                         // Experimental code
  61
  62                         foreach(ParameterModel parameter in model.Parameters)
  63                         {
  64                                 if (parameter.Value == null || !ReferenceExpressionUtil.IsReference(parameter.Value))
  65                                 {
  66                                         continue;
  67                                 }
  68
  69                                 String newKey = ReferenceExpressionUtil.ExtractComponentKey(parameter.Value);
  70
  71                                 // Update dependencies to ServiceOverride
  72
  73                                 model.Dependencies.Add(new DependencyModel(DependencyType.ServiceOverride, newKey, null, false));
  74                         }
  75                 }
  76         }
  77 }