/// <summary>
/// Prepares the mapping set.
/// </summary>
/// <param name="mapElColl">The map el coll.</param>
/// <param name="dataSet">The data set.</param>
/// <param name="mappedObjectList">The mapped object list.</param>
/// <returns></returns>
private MappedObject PrepareMappingSet(MappingElement mapElColl, DataSet dataSet,
List <MappedObject> mappedObjectList)
{
DataTable dataTable = null;
dataTable = dataSet.Tables[mapElColl.TableName];
//Not found dataTable specified in MappingElement Table attribute
if (dataTable == null)
{
throw new ObjectNotFoundException("Not found data table described in mapping declaration");
}
return(PrepareMappingSet(mapElColl, dataTable, mappedObjectList));
}
/// <summary>
/// Prepares the mapping set.
/// </summary>
/// <param name="mapElColl">The map el coll.</param>
/// <param name="dataSet">The data set.</param>
/// <returns></returns>
private MappedObject PrepareMappingSet(MappingElement mapElColl,
DataTable dataTable, List <MappedObject> mappedObjectList)
{
DataColumn dataCol = null;
MetaClass metaType = DataContext.Current.GetMetaClass(mapElColl.ClassName);
MappedObject retVal = new MappedObject(mapElColl.ClassName, mapElColl);
//Process each row
foreach (DataRow dataRow in dataTable.Rows)
{
MetaObjectData moData = new MetaObjectData();
//Always add primary key in MappingData
if (!String.IsNullOrEmpty(mapElColl.PrimaryKeyName))
{
moData.MapColumnData.Add(mapElColl.PrimaryKeyName,
dataRow[mapElColl.PrimaryKeyName]);
}
//Prepare mapping values
foreach (MappingRule mapEl in mapElColl)
{
object value = null;
try
{
if (String.IsNullOrEmpty(mapEl.ColumnName))
{
continue;
}
dataCol = dataTable.Columns[mapEl.ColumnName];
//try find record in mapping definition document
BaseSourceValue valueGenerator =
BaseSourceValue.CreateValueSourceInstance(mapEl);
value = valueGenerator.GetValue(dataRow, dataCol,
mappedObjectList);
value = Value2MetaPropertyType(value, metaType.Fields[mapEl.FieldName]);
}
catch (Exception e)
{
MappingError errorInfo = new MappingError(MappingErrorType.SourceValueError,
e.Message);
errorInfo.Row = dataRow;
errorInfo.Column = dataCol;
errorInfo.Table = dataTable;
errorInfo.Exception = e;
MappingEngineErrorEventArgs args = new MappingEngineErrorEventArgs(errorInfo);
args.MappingRule = mapEl;
args.MappingElement = mapElColl;
RaiseErrorEvent(args);
if ((args.ResolveError) && (_errResolveAtteptNum < _errResolveAtteptMax))
{
_errResolveAtteptNum++;
//Try resolve error
return(PrepareMappingSet(args.MappingElement, args.Error.Table,
mappedObjectList));
}
else
{
_errorInfoList.Add(errorInfo);
continue;
}
}
if (!moData.MapMetaFieldData.ContainsKey(mapEl.FieldName))
{
//Save mapped value
moData.MapMetaFieldData.Add(mapEl.FieldName, value);
}
if (!moData.MapColumnData.ContainsKey(dataCol.ColumnName))
{
//save previous row column value
moData.MapColumnData.Add(dataCol.ColumnName, dataRow[dataCol]);
}
//reset error resolve attempt
_errResolveAtteptNum = 0;
}
retVal.MetaObjets.Add(moData);
}
return(retVal);
}
public MappedObject(String className, MappingElement mapElColl)
{
_className = className;
_mapElColl = mapElColl;
_metaObjects = new List <MetaObjectData>();
}
