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[pithos-ms-client] / trunk / Libraries / Json40r2 / Source / Src / Newtonsoft.Json / Serialization / JsonArrayContract.cs

diff --git a/trunk/Libraries/Json40r2/Source/Src/Newtonsoft.Json/Serialization/JsonArrayContract.cs b/trunk/Libraries/Json40r2/Source/Src/Newtonsoft.Json/Serialization/JsonArrayContract.cs
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+++ b/trunk/Libraries/Json40r2/Source/Src/Newtonsoft.Json/Serialization/JsonArrayContract.cs
@@ -0,0 +1,129 @@
+#region License
+// Copyright (c) 2007 James Newton-King
+//
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Newtonsoft.Json.Utilities;
+using System.Collections;
+
+namespace Newtonsoft.Json.Serialization
+{
+  /// <summary>
+  /// Contract details for a <see cref="Type"/> used by the <see cref="JsonSerializer"/>.
+  /// </summary>
+  public class JsonArrayContract : JsonContract
+  {
+    internal Type CollectionItemType { get; private set; }
+
+    private readonly bool _isCollectionItemTypeNullableType;
+    private readonly Type _genericCollectionDefinitionType;
+    private Type _genericWrapperType;
+    private MethodCall<object, object> _genericWrapperCreator;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="JsonArrayContract"/> class.
+    /// </summary>
+    /// <param name="underlyingType">The underlying type for the contract.</param>
+    public JsonArrayContract(Type underlyingType)
+      : base(underlyingType)
+    {
+      if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(ICollection<>), out _genericCollectionDefinitionType))
+      {
+        CollectionItemType = _genericCollectionDefinitionType.GetGenericArguments()[0];
+      }
+      else
+      {
+        CollectionItemType = ReflectionUtils.GetCollectionItemType(UnderlyingType);
+      }
+
+      if (CollectionItemType != null)
+        _isCollectionItemTypeNullableType = ReflectionUtils.IsNullableType(CollectionItemType);
+
+      if (IsTypeGenericCollectionInterface(UnderlyingType))
+      {
+        CreatedType = ReflectionUtils.MakeGenericType(typeof(List<>), CollectionItemType);
+      }
+    }
+
+    internal IWrappedCollection CreateWrapper(object list)
+    {
+      if ((list is IList && (CollectionItemType == null || !_isCollectionItemTypeNullableType))
+        || UnderlyingType.IsArray)
+        return new CollectionWrapper<object>((IList)list);
+
+      if (_genericCollectionDefinitionType != null)
+      {
+        EnsureGenericWrapperCreator();
+        return (IWrappedCollection) _genericWrapperCreator(null, list);
+      }
+      else
+      {
+        IList values = ((IEnumerable) list).Cast<object>().ToList();
+
+        if (CollectionItemType != null)
+        {
+          Array array = Array.CreateInstance(CollectionItemType, values.Count);
+          for (int i = 0; i < values.Count; i++)
+          {
+            array.SetValue(values[i], i);
+          }
+
+          values = array;
+        }
+
+        return new CollectionWrapper<object>(values);
+      }
+    }
+
+    private void EnsureGenericWrapperCreator()
+    {
+      if (_genericWrapperType == null)
+      {
+        _genericWrapperType = ReflectionUtils.MakeGenericType(typeof (CollectionWrapper<>), CollectionItemType);
+
+        Type constructorArgument = (ReflectionUtils.InheritsGenericDefinition(_genericCollectionDefinitionType, typeof (List<>)))
+                                     ? ReflectionUtils.MakeGenericType(typeof (ICollection<>), CollectionItemType)
+                                     : _genericCollectionDefinitionType;
+
+        ConstructorInfo genericWrapperConstructor = _genericWrapperType.GetConstructor(new[] { constructorArgument });
+        _genericWrapperCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateMethodCall<object>(genericWrapperConstructor);
+      }
+    }
+
+    private bool IsTypeGenericCollectionInterface(Type type)
+    {
+      if (!type.IsGenericType)
+        return false;
+
+      Type genericDefinition = type.GetGenericTypeDefinition();
+
+      return (genericDefinition == typeof(IList<>)
+              || genericDefinition == typeof(ICollection<>)
+              || genericDefinition == typeof(IEnumerable<>));
+    }
+  }
+}
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