public string GetColumnName(string mapName, string propertyName)
{
if (_mappers.ContainsKey(mapName))
{
string[] props = propertyName.Split(new[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
RowMap rowMap = _mappers[mapName];
ColumnMap columnMap;
int counter = 0;
do
{
string innerPropertyName = props[counter];
if (!rowMap.ColumnMapsByPropertyName.ContainsKey(innerPropertyName))
{
//throw new AppException("Row Mapper can not find property {PropertyName:" + propertyName +
// ",innerPropertyName:" + innerPropertyName + "}");
throw new Exception();
}
columnMap = rowMap.ColumnMapsByPropertyName[innerPropertyName];
switch (columnMap.InnerType)
{
case InnerMapType.None:
rowMap = null;
break;
case InnerMapType.External:
rowMap = _mappers[columnMap.InnerRowMapName];
break;
case InnerMapType.Internal:
rowMap = columnMap.InternalRowMap;
break;
default:
throw new ArgumentOutOfRangeException();
}
counter++;
} while (counter < props.Length && rowMap != null);
if (columnMap != null)
{
return("[" + columnMap.ColumnName + "]");
}
}
throw new Exception("Map not found: " + mapName);
}
private object GetData(string mapName, IDataReader dr, Type type, object defaultValue = null)
{
object rv;
if (type.IsPrimitive)
{
rv = Convert.ChangeType(dr[0], type);
}
else
{
if (_mappers.ContainsKey(mapName))
{
RowMap rowMap = _mappers[mapName];
rv = MapDataRow(dr, type, rowMap, mapName, defaultValue);
}
else
{
throw new Exception("Map Not Found MapName=" + mapName);
}
}
return(rv);
}
internal static RowMap GetTempRowMap(string[] s, string columnName, RowMap tempRm = null)
{
int length = s.Length;
if (tempRm == null)
{
tempRm = new RowMap {
ColumnMapsByPropertyName = new Dictionary <string, ColumnMap>()
};
}
InnerMapType innerMapType = InnerMapType.Internal;
RowMap internalRowMap = null;
if (length > 2)
{
string[] strings = s.Skip(1).ToArray();
RowMap rm = null;
if (tempRm.ColumnMapsByPropertyName.ContainsKey(strings[0]))
{
rm = tempRm.ColumnMapsByPropertyName[strings[0]].InternalRowMap;
}
internalRowMap = GetTempRowMap(strings, columnName, rm);
}
else
{
innerMapType = InnerMapType.None;
}
if (!tempRm.ColumnMapsByPropertyName.ContainsKey(s[1]))
{
tempRm.ColumnMapsByPropertyName.Add(s[1], new ColumnMap {
ColumnName = columnName, PropertyName = s[1], InnerType = innerMapType, InternalRowMap = internalRowMap
});
}
return(tempRm);
}
private object MapDataRow(IDataReader dr, Type type, RowMap rowMap, string mapName, object defaultValue = null)
{
object obj;
if (defaultValue != null)
{
obj = defaultValue;
}
else
{
obj = Activator.CreateInstance(type, null);
}
bool setReturnValue = false;
object rv = null;
DataTable schemaTable = dr.GetSchemaTable();
foreach (KeyValuePair <string, ColumnMap> keyValuePair in rowMap.ColumnMapsByPropertyName)
{
switch (keyValuePair.Value.InnerType)
{
case InnerMapType.None:
{
string columnName = keyValuePair.Value.ColumnName;
if (HasColumn(columnName, dr, schemaTable))
{
PropertyInfo propertyInfo = PropertyMapCache.GetProperty(type,
keyValuePair.Value.PropertyName);
if (propertyInfo != null)
{
propertyInfo.SetValue(obj,
RowMapperChangeType(dr[columnName], propertyInfo.PropertyType),
null);
setReturnValue = true;
}
else
{
//TODO:Logger
throw new Exception("PropertyName Not Found PropertyName=" +
keyValuePair.Value.PropertyName +
" MapName=" + mapName);
}
}
}
break;
case InnerMapType.Internal:
case InnerMapType.External:
{
PropertyInfo propertyInfo = PropertyMapCache.GetProperty(type,
keyValuePair.Value.PropertyName);
if (propertyInfo != null)
{
if (keyValuePair.Value.InnerType == InnerMapType.Internal)
{
object value = propertyInfo.GetValue(obj, null);
object data = MapDataRow(dr, propertyInfo.PropertyType, keyValuePair.Value.InternalRowMap, "Internal Map For " + mapName + " " + keyValuePair.Value.PropertyName, value);
if (value == null)
{
propertyInfo.SetValue(obj, data, null);
}
setReturnValue = true;
}
else if (keyValuePair.Value.InnerType == InnerMapType.External)
{
object data = GetData(keyValuePair.Value.InnerRowMapName, dr,
propertyInfo.PropertyType);
propertyInfo.SetValue(obj, data, null);
setReturnValue = true;
}
}
else
{
//TODO:Logger
throw new Exception("PropertyName Not Found PropertyName=" +
keyValuePair.Value.PropertyName +
" MapName=" + mapName);
}
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
if (setReturnValue)
{
rv = obj;
}
return(rv);
}
