/// <summary>
/// Build Current values for Runtime cursor.
/// </summary>
/// <param name="runtimeCursor"></param>
/// <param name="record"></param>
private void BuildCurrentValues(RuntimeCursor runtimeCursor, RecordForDataViewToDataSource record)
{
for (int j = 0; j < destinationDataSourceDefinition.Fields.Count; j++)
{
DBField dbfield = destinationDataSourceDefinition.Fields[j];
bool fieldExist = false;
//Check if current Dbfield exist in the selected column list.
foreach (DBField destinationDbField in destinationColumnList)
{
if (dbfield.Name == destinationDbField.Name)
{
fieldExist = true;
break;
}
}
//If field is selected then set the value of that field in the runtime cursor.
if (fieldExist)
{
runtimeCursor.CursorDefinition.IsFieldUpdated[j] = true;
//Convert values of fields of record.
int recordFieldIndex;
destinationToSourceFieldIndexMapping.TryGetValue(dbfield.Name, out recordFieldIndex);
runtimeCursor.RuntimeCursorData.CurrentValues[j].IsNull = record.IsNull(recordFieldIndex);
if (record.IsNull(recordFieldIndex))
{
if (!dbfield.AllowNull)
{
runtimeCursor.RuntimeCursorData.CurrentValues[j].Value = dbfield.DefaultValue;
runtimeCursor.RuntimeCursorData.CurrentValues[j].IsNull = false;
}
}
else
{
runtimeCursor.RuntimeCursorData.CurrentValues[j].Value = record.GetFieldValue(recordFieldIndex);
}
}
else
{
runtimeCursor.CursorDefinition.IsFieldUpdated[j] = false;
runtimeCursor.RuntimeCursorData.CurrentValues[j].IsNull = true;
}
}
}
/// <summary>
/// Get the record by parsing the dataviewcontent.
/// </summary>
/// <returns></returns>
private RecordForDataViewToDataSource GetRecord()
{
RecordForDataViewToDataSource record = null;
String foundTagName;
bool isCurrRec;
TaskBase task = (TaskBase)MGDataCollection.Instance.GetTaskByID(updateDataViewToDataSourceCommand.TaskTag);
foundTagName = ClientManager.Instance.RuntimeCtx.Parser.getNextTag();
if (foundTagName != null && foundTagName.Equals(ConstInterface.MG_TAG_REC))
{
record = new RecordForDataViewToDataSource((DataView)task.DataView, destinationColumnList);
record.ValueInBase64 = true;
isCurrRec = record.fillData();
}
return(record);
}
/// <summary>
/// Build the ranges using the unique key segments.
/// </summary>
/// <param name="record"></param>
/// <param name="runtimeCursor"></param>
/// <returns></returns>
private void BuildRanges(RecordForDataViewToDataSource record, RuntimeCursor runtimeCursor)
{
int recordFieldIndex = 0;
if (uniqueKey != null)
{
runtimeCursor.RuntimeCursorData.Ranges = new List <RangeData>();
foreach (DBSegment segment in uniqueKey.Segments)
{
for (int fldIndex = 0; fldIndex < destinationColumnList.Count; fldIndex++)
{
DBField dbField = destinationColumnList[fldIndex];
if (dbField.Equals(segment.Field))
{
RangeData rngData = new RangeData();
rngData.FieldIndex = dbField.IndexInRecord;
rngData.Max.Type = RangeType.RangeParam;
rngData.Max.Discard = false;
rngData.Min.Type = RangeType.RangeParam;
rngData.Min.Discard = false;
FieldValue fieldValue = new FieldValue();
destinationToSourceFieldIndexMapping.TryGetValue(dbField.Name, out recordFieldIndex);
fieldValue.Value = record.GetFieldValue(recordFieldIndex);
rngData.Max.Value = fieldValue;
rngData.Min.Value = fieldValue;
runtimeCursor.RuntimeCursorData.Ranges.Add(rngData);
break;
}
}
}
}
}
/// <summary>
/// Update dataview to DataSource.
/// </summary>
private ReturnResultBase UpdateDataViewToDataSource()
{
bool transactionOpened = false;
string error = string.Empty;
string dataSourceName = ClientManager.Instance.getEnvParamsTable().translate(updateDataViewToDataSourceCommand.DestDataSourceName);
if (string.IsNullOrEmpty(dataSourceName))
{
dataSourceName = destinationDataSourceDefinition.Name;
}
GatewayResult result = GatewayCommandsFactory.CreateFileExistCommand(dataSourceName, destinationDataSourceDefinition, ClientManager.Instance.LocalManager).Execute();
bool insertMode = !result.Success;
if (!insertMode)
{
uniqueKey = GetUniqueKey();
if (uniqueKey == null)
{
error = "DataViewToDataSource - When using the DataViewtoDataSource function, a unique index must be defined in the destination data source .";
Logger.Instance.WriteExceptionToLog(error);
ClientManager.Instance.ErrorToBeWrittenInServerLog = error;
return(new ReturnResult(MsgInterface.STR_DATAVIEW_TO_DATASOURCE_OPERATION_FAILED));
}
else if (!CheckDestinationColumnListContainUniqueKeyColumns())
{
error = "DataViewToDataSource - When using the DataViewtoDataSource function, all the segments of the unique index must be selected.";
Logger.Instance.WriteExceptionToLog(error);
ClientManager.Instance.ErrorToBeWrittenInServerLog = error;
return(new ReturnResult(MsgInterface.STR_DATAVIEW_TO_DATASOURCE_OPERATION_FAILED));
}
}
result = GatewayCommandsFactory.CreateFileOpenCommand(dataSourceName, destinationDataSourceDefinition, Access.Write, ClientManager.Instance.LocalManager).Execute();
if (result.Success)
{
//Build the runtime cursor.
MainCursorBuilder cursorBuilder = new MainCursorBuilder(null);
RuntimeCursor destinationRuntimeCursor = cursorBuilder.Build(destinationDataSourceDefinition, Access.Write);
destinationRuntimeCursor.CursorDefinition.StartPosition = new DbPos(true);
destinationRuntimeCursor.CursorDefinition.CurrentPosition = new DbPos(true);
// Prepare the cursor.
result = GatewayCommandsFactory.CreateCursorPrepareCommand(destinationRuntimeCursor, ClientManager.Instance.LocalManager).Execute();
if (result.Success)
{
//If tansaction is not open then open the transaction.
if (TaskTransactionManager.LocalOpenedTransactionsCount == 0)
{
result = GatewayCommandsFactory.CreateGatewayCommandOpenTransaction(ClientManager.Instance.LocalManager).Execute();
transactionOpened = true;
}
if (result.Success)
{
SetDataToRuntimeParser();
RecordForDataViewToDataSource record = GetRecord();
while (record != null)
{
BuildCurrentValues(destinationRuntimeCursor, record);
result = GatewayCommandsFactory.CreateCursorInsertCommand(destinationRuntimeCursor, ClientManager.Instance.LocalManager, true).Execute();
if (!result.Success)
{
if (result.ErrorCode == GatewayErrorCode.DuplicateKey)
{
if (!insertMode)
{
//Build the ranges using unique key segments value.
BuildRanges(record, destinationRuntimeCursor);
//Open the cursor and apply the ranges.
result = GatewayCommandsFactory.CreateCursorOpenCommand(destinationRuntimeCursor, ClientManager.Instance.LocalManager, true).Execute();
if (result.Success)
{
//Fetch the record
result = GatewayCommandsFactory.CreateCursorFetchCommand(destinationRuntimeCursor, ClientManager.Instance.LocalManager).Execute();
BuildCurrentValues(destinationRuntimeCursor, record);
//If record found, that means record with same key value exists, so update the current record with destination record.
if (result.Success)
{
result = GatewayCommandsFactory.CreateGatewayCommandCursorUpdateRecord(destinationRuntimeCursor, ClientManager.Instance.LocalManager, true).Execute();
}
else
{
if (!string.IsNullOrEmpty(ClientManager.Instance.ErrorToBeWrittenInServerLog))
{
ClientManager.Instance.ErrorToBeWrittenInServerLog += "\r\n";
}
ClientManager.Instance.ErrorToBeWrittenInServerLog += result.ErrorDescription;
}
//Close the cursor.
GatewayCommandsFactory.CreateCursorCloseCommand(destinationRuntimeCursor, ClientManager.Instance.LocalManager).Execute();
}
else
{
if (!string.IsNullOrEmpty(ClientManager.Instance.ErrorToBeWrittenInServerLog))
{
ClientManager.Instance.ErrorToBeWrittenInServerLog += "\r\n";
}
ClientManager.Instance.ErrorToBeWrittenInServerLog += result.ErrorDescription;
}
}
else
{
if (!string.IsNullOrEmpty(ClientManager.Instance.ErrorToBeWrittenInServerLog))
{
ClientManager.Instance.ErrorToBeWrittenInServerLog += "\r\n";
}
ClientManager.Instance.ErrorToBeWrittenInServerLog += result.ErrorDescription;
record = GetRecord();
continue;
}
}
else
{
if (!string.IsNullOrEmpty(ClientManager.Instance.ErrorToBeWrittenInServerLog))
{
ClientManager.Instance.ErrorToBeWrittenInServerLog += "\r\n";
}
ClientManager.Instance.ErrorToBeWrittenInServerLog += result.ErrorDescription;
break;
}
}
record = GetRecord();
}
//If transaction is opened , then close the transaction. If any error occurs then abort the transation else do commit.
if (transactionOpened)
{
GatewayCommandCloseTransaction closeTransactionCommand = GatewayCommandsFactory.CreateGatewayCommandCloseTransaction(ClientManager.Instance.LocalManager);
if (result.Success)
{
closeTransactionCommand.TransactionModes = TransactionModes.Commit;
}
else
{
closeTransactionCommand.TransactionModes = TransactionModes.Abort;
}
closeTransactionCommand.Execute();
}
//Release the cursor and close the file.
GatewayCommandsFactory.CreateCursorReleaseCommand(destinationRuntimeCursor, ClientManager.Instance.LocalManager).Execute();
GatewayCommandsFactory.CreateFileCloseCommand(destinationDataSourceDefinition, ClientManager.Instance.LocalManager).Execute();
}
else
{
ClientManager.Instance.ErrorToBeWrittenInServerLog = result.ErrorDescription;
}
}
else
{
ClientManager.Instance.ErrorToBeWrittenInServerLog = result.ErrorDescription;
}
}
else
{
ClientManager.Instance.ErrorToBeWrittenInServerLog = result.ErrorDescription;
}
return(result);
}
