private void _queryRunner_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
if (timerElapsedEventInProgress == false)
{
timerElapsedEventInProgress = true;
timerTriggerCount = 0;
try
{
List <TableCopier> configSettings = MongoDbDal.GetListOfTableCopiers();
foreach (var tab in configSettings)
{
tab.ImportNextBatch();
}
}
catch (Exception ex)
{
Log.Error(ex);
}
}
else
{
timerTriggerCount++;
if (timerTriggerCount >= maxNumberOfRetries)
{
timerTriggerCount = 0;
timerElapsedEventInProgress = false;
}
}
}
protected override void OnStart(string[] args)
{
try
{
Log.Info("******Started Running the Query Scheduler*****");
TypeMap = Helper.InitializeTypeHash();
//_queryRunner.Interval = int.Parse(ConfigurationManager.AppSettings["ScheduleInterval"]);
_queryRunner.Interval = 5000;
_queryRunner.Elapsed += _queryRunner_Elapsed;;
MongoDbDal.MongoDB_Initialize();
try
{
List <TableCopier> configSettings = MongoDbDal.GetListOfTableCopiers();
foreach (var tab in configSettings)
{
tab.ImportNextBatch();
}
}
catch (Exception ex)
{
Log.Error(ex);
}
_queryRunner.Start();
}
catch (Exception ex)
{
Log.Error(ex);
}
}
public void ImportNextBatch()
{
DataTable sourceData = GetTableDataWithFitler();
if (sourceData.Rows.Count == 0)
{
return;
}
DataRow[] successfullInserts = null;
if (sourceData != null)
{
successfullInserts = SaveDataTableDestinationDb(sourceData);
switch (CopyType)
{
case TableCopyType.StatusBased:
//Updating the source table with a flag to indicate that these records are already migrated so that we dont create duplicate records in the next iteration
UpdateSourceTableWithSuccessFlag(successfullInserts);
break;
case TableCopyType.SequenceBased:
var te1 = successfullInserts.OrderByDescending(z => int.Parse(z.Field <string>("FDATE"))).ThenByDescending(z => int.Parse(z.Field <string>("FTIME")));
break;
case TableCopyType.TimeStampBased:
var te = successfullInserts.OrderByDescending(z => int.Parse(z.Field <string>("FDATE"))).ThenByDescending(z => int.Parse(z.Field <string>("FTIME")));
LastSyncDate = te.First().Field <string>("FDATE");
LastSyncTime = te.First().Field <string>("FTIME");
MongoDbDal.UpdateLastSyncDateTime(CopierId, LastSyncDate, LastSyncTime);
break;
default:
break;
}
}
else
{
Log.Info(" could not get data from source table: " + SourceTableName);
}
}