diff Source/Mapping/DictionaryIndexListMapper.cs @ 0:f990fcb411a9

Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Source/Mapping/DictionaryIndexListMapper.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,104 @@
+using System;
+using System.Collections;
+
+using BLToolkit.Common;
+using BLToolkit.Reflection;
+
+namespace BLToolkit.Mapping
+{
+	public class DictionaryIndexListMapper : IMapDataDestinationList
+	{
+		public DictionaryIndexListMapper(
+			IDictionary  dic,
+			MapIndex     index,
+			ObjectMapper objectMapper)
+		{
+			_dic    = dic;
+			_mapper = objectMapper;
+
+			_fields = new NameOrIndexParameter[index.Fields.Length];
+			_fromSource = new bool[index.Fields.Length];
+
+			for (int i = 0; i < _fields.Length; i++)
+			{
+				bool fromSource = index.Fields[i].ByName && index.Fields[i].Name[0] == '@';
+
+				_fields[i]     = fromSource? index.Fields[i].Name.Substring(1): index.Fields[i];
+				_fromSource[i] = fromSource;
+				_isFromSource  = _isFromSource ||  fromSource;
+				_isFromDest    = _isFromDest   || !fromSource;
+			}
+		}
+
+		private readonly NameOrIndexParameter[] _fields;
+		private readonly IDictionary            _dic;
+		private readonly bool[]                 _fromSource;
+		private readonly bool                   _isFromSource;
+		private readonly bool                   _isFromDest;
+		private          ObjectMapper           _mapper;
+		private          object                 _newObject;
+		private          object[]               _indexValue;
+
+		#region IMapDataDestinationList Members
+
+		private void AddObject()
+		{
+			if (_newObject != null)
+			{
+				if (_isFromDest)
+					for (int i = 0; i < _fields.Length; i++)
+						if (!_fromSource[i])
+							_indexValue[i] = _mapper.TypeAccessor[_fields[i]].GetValue(_newObject);
+
+				_dic[new CompoundValue(_indexValue)] = _newObject;
+			}
+		}
+
+		public virtual void InitMapping(InitContext initContext)
+		{
+			var sm = _dic as ISupportMapping;
+
+			if (sm != null)
+			{
+				sm.BeginMapping(initContext);
+
+				if (_mapper != initContext.ObjectMapper)
+					_mapper = initContext.ObjectMapper;
+			}
+		}
+
+		[CLSCompliant(false)]
+		public virtual IMapDataDestination GetDataDestination(InitContext initContext)
+		{
+			return _mapper;
+		}
+
+		public virtual object GetNextObject(InitContext initContext)
+		{
+			AddObject();
+
+			_indexValue = new object[_fields.Length];
+
+			if (_isFromSource)
+				for (int i = 0; i < _fields.Length; i++)
+					if (_fromSource[i])
+						_indexValue[i] = _fields[i].ByName ?
+							initContext.DataSource.GetValue( initContext.SourceObject, _fields[i].Name) :
+							initContext.DataSource.GetValue( initContext.SourceObject, _fields[i].Index);
+
+			return _newObject = _mapper.CreateInstance(initContext);
+		}
+
+		public virtual void EndMapping(InitContext initContext)
+		{
+			AddObject();
+
+			ISupportMapping sm = _dic as ISupportMapping;
+
+			if (sm != null)
+				sm.EndMapping(initContext);
+		}
+
+		#endregion
+	}
+}