mcs/class/System.ComponentModel.Composition/Tests/ComponentModelUnitTest/System/ComponentModel/Composition/ConcreteComposablePart.cs

   1 // -----------------------------------------------------------------------\r
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.\r
   3 // -----------------------------------------------------------------------\r
   4 using System;\r
   5 using System.Collections.Generic;\r
   6 using System.ComponentModel.Composition;\r
   7 using System.Linq;\r
   8 using System.ComponentModel.Composition.Factories;\r
   9 using System.ComponentModel.Composition.Primitives;\r
  10 \r
  11 namespace System.ComponentModel.Composition\r
  12 {\r
  13     internal class ConcreteComposablePart : ComposablePart, IDisposable\r
  14     {\r
  15         private readonly List<Export> _exports = new List<Export>();\r
  16         private readonly List<ImportDefinition> _imports = new List<ImportDefinition>();\r
  17         private readonly IDictionary<string, IEnumerable<Export>> _setImports = new Dictionary<string, IEnumerable<Export>>();\r
  18 \r
  19         public ConcreteComposablePart()\r
  20         {\r
  21         }\r
  22 \r
  23         public override IDictionary<string, object> Metadata\r
  24         {\r
  25             get { return MetadataServices.EmptyMetadata; }\r
  26         }\r
  27 \r
  28         public IDictionary<string, IEnumerable<Export>> SetImports\r
  29         {\r
  30             get { return this._setImports; }\r
  31         }\r
  32 \r
  33         public override IEnumerable<ExportDefinition> ExportDefinitions\r
  34         {\r
  35             get { return this._exports.Select(export => export.Definition); }\r
  36         }\r
  37 \r
  38         public override IEnumerable<ImportDefinition> ImportDefinitions\r
  39         {\r
  40             get { return this._imports; }\r
  41         }\r
  42 \r
  43         public ImportDefinition AddImport(string contractName, ImportCardinality cardinality, bool isRecomposable, bool isPrerequisite)\r
  44         {\r
  45             var import = ImportDefinitionFactory.CreateDefault(contractName, cardinality, isRecomposable, isPrerequisite);\r
  46 \r
  47             this.AddImport(import);\r
  48             return import;\r
  49         }\r
  50 \r
  51         public void AddImport(ImportDefinition import)\r
  52         {\r
  53             this._imports.Add(import);\r
  54         }\r
  55 \r
  56         public void AddExport(string contractName, object value)\r
  57         {\r
  58             this.AddExport(ExportFactory.Create(contractName, () => value));\r
  59         }\r
  60 \r
  61         public void AddExport(Export export)\r
  62         {\r
  63             this._exports.Add(export);\r
  64         }\r
  65 \r
  66         public override object GetExportedValue(ExportDefinition definition)\r
  67         {\r
  68             Export export = _exports.First(e => e.Definition == definition);\r
  69 \r
  70             return export.Value;\r
  71         }\r
  72 \r
  73         public override void SetImport(ImportDefinition definition, IEnumerable<Export> exports)\r
  74         {\r
  75             ContractBasedImportDefinition contractBasedDefinition = (ContractBasedImportDefinition)definition;\r
  76             this._setImports[contractBasedDefinition.ContractName] = exports;\r
  77 \r
  78             foreach (Export export in exports)\r
  79             {\r
  80                 var value = export.Value;\r
  81             }\r
  82         }\r
  83 \r
  84         void IDisposable.Dispose()\r
  85         {\r
  86             foreach (var disposable in _exports.Select(export => export.Value).OfType<IDisposable>())\r
  87             {\r
  88                 disposable.Dispose();\r
  89             }\r
  90         }\r
  91     }\r
  92 }\r
  93 \r