/// <summary>
/// Gather mapping informations in Pre execute phase
/// </summary>
private void CreateMapping()
{
_columnInfos = new List <ColumnInfo>(this.ComponentMetaData.InputCollection[0].InputColumnCollection.Count);
IDTSInput100 input = this.ComponentMetaData.InputCollection[Constants.INPUT_NAME];
foreach (IDTSInputColumn100 col in input.InputColumnCollection)
{
// Find the position in buffers that this column will take, and add it to the map.
ColumnConfig config = _IsagCustomProperties.GetColumnConfigByInputColumnName(col.Name);
_columnInfos.Add(new ColumnInfo(col.Name, col.DataType,
this.BufferManager.FindColumnByLineageID(input.Buffer, col.LineageID),
col.Length, col.Precision, col.Scale, col.CodePage, _IsagCustomProperties.IsColumnUsedForBulkCopy(config), config.OutputColumnName, config.Insert, config.IsGeometryDataType)
);
}
if (_IsagCustomProperties.UseBulkInsert)
{
_columnMapping = new Dictionary <string, string>();
foreach (ColumnConfig config in _IsagCustomProperties.ColumnConfigList)
{
if (config.Insert)
{
_columnMapping.Add(config.OutputColumnName, config.InputColumnName);
}
}
}
}
/// <summary>
/// Rebuilds mapping of input and output columns
/// (errors are corrected if possible)
/// </summary>
/// <param name="componentMetaData">SSIS components metadata</param>
public void RebuildMappings(IDTSComponentMetaData100 componentMetaData, IsagEvents events)
{
IDTSInput100 input = componentMetaData.InputCollection[Constants.INPUT_NAME];
IDTSVirtualInput100 vInput = input.GetVirtualInput();
Dictionary <int, ColumnConfig> mappingsInput = new Dictionary <int, ColumnConfig>();
List <ColumnConfig> mappingsWithoutInputs = new List <ColumnConfig>();
List <ColumnConfig> newMappings = new List <ColumnConfig>();
if (this.ContainsWrongUsageType(vInput.VirtualInputColumnCollection, events))
{
ComponentMetaDataTools.SetUsageTypeReadOnly(vInput);
}
//Writre existing mappings in 2 lists (one with input columns, one without)
foreach (ColumnConfig config in this.ColumnConfigList)
{
if (config.HasInput)
{
mappingsInput.Add(config.InputColumnId, config);
}
else
{
mappingsWithoutInputs.Add(config);
}
}
//Generate new mapping using SSIS input columns
foreach (IDTSInputColumn100 inputCol in input.InputColumnCollection)
{
ColumnConfig config;
if (mappingsInput.ContainsKey(inputCol.ID))
{
config = mappingsInput[inputCol.ID];
config.InputColumnName = inputCol.Name;
config.DataTypeInput = SqlCreator.GetSQLServerDataTypeFromInput(inputCol, config.IsGeometryDataType);
}
else
{
config = new ColumnConfig(inputCol.Name, SqlCreator.GetSQLServerDataTypeFromInput(inputCol, isGeometry: false), inputCol);
}
newMappings.Add(config);
}
//Add properties to the newly created mapping
ColumnConfigList.Clear();
foreach (ColumnConfig config in newMappings)
{
ColumnConfigList.Add(config);
}
foreach (ColumnConfig config in mappingsWithoutInputs)
{
ColumnConfigList.Add(config);
}
this.Save(componentMetaData);
}
/// <summary>
/// Creates, adds and returns a column configuration
/// </summary>
/// <param name="sqlColumns">Sql column list</param>
/// <returns>column configuration</returns>
public ColumnConfig AddColumnConfig(SqlColumnList sqlColumns)
{
ColumnConfig result = new ColumnConfig();
result.SetSqlColumnDefinitions(sqlColumns);
result.Default = "";
result.Function = "";
this.ColumnConfigList.Add(result);
return(result);
}
/// <summary>
/// Is column written to temporary table?
/// </summary>
/// <param name="column">column configuration</param>
/// <returns>Is column written to temporary table?</returns>
public bool IsColumnUsedForBulkCopy(ColumnConfig column)
{
List <string> referencedByFunction = GetNeededColumnsReferenceByFunction();
return(column.IsInputColumnUsed || referencedByFunction.Contains(column.InputColumnName));
}
/// <summary>
/// Automap an input column to an output column
/// </summary>
/// <param name="config">column configuration
/// </param>
public void AutoMap(ColumnConfig config)
{
config.AutoMap(PrefixInput, PrefixOutput);
}
