/// <summary>
/// Called to (re)Populate the grid
/// </summary>
private void Populate()
{
OperationList listOperations = new OperationList();
listOperations.Populate(Operation.OPERATION.any, Operation.STATUS.any);
// Add to the data set
this.operationsDataSet.Tables[0].Rows.Clear();
foreach (Operation operation in listOperations)
{
if (operation.StartDate >= dtpStartDateTime.DateTime)
{
if (operation.EndDate.Ticks == 0)
{
operationsDataSet.Tables[0].Rows.Add(new object[] { operation
, operation.StartDate
, operation.AssetName
, operation.OperationAsString
, operation.StatusAsString
, null
, operation.ErrorText });
}
else
{
operationsDataSet.Tables[0].Rows.Add(new object[] { operation
, operation.StartDate
, operation.AssetName
, operation.OperationAsString
, operation.StatusAsString
, operation.EndDate
, operation.ErrorText });
}
}
}
}
/// <summary>
/// This function is called periodically by the expiry of the refresh timer to check for
/// and process any outstanding operations
/// </summary>
protected void CheckOperations()
{
LogFile ourLog = LogFile.Instance;
try
{
// Do we have any items left in our 'outstanding queue' - If not check to see if anymore
// have been queued
if (_listOutstandingOperations.Count == 0)
{
// OK no operations left in the queue but have new ones been queued in the database?
OperationsDAO lwDataAccess = new OperationsDAO();
int lastOperation = lwDataAccess.OperationGetLastIndex();
if (lastOperation > _lastOperation)
{
// New Operations have been queued - recover them
_listOutstandingOperations.Populate(Operation.OPERATION.any, Operation.STATUS.none);
// Update the last operation index - the returned operations are ordered by their ID
if (_listOutstandingOperations.Count > 0)
{
Operation operation = _listOutstandingOperations[_listOutstandingOperations.Count - 1];
_lastOperation = operation.OperationID;
}
}
}
// Check for threads which need to be killed off as they have timed out
CheckTimedOutOperations();
// Now loop round checking any outstanding operations unless and until we are returned false
bool status;
do
{
status = ProcessOperations();
}while (status == true);
}
catch (Exception ex)
{
ourLog.Write("CheckOperations:: An exception has occurred, error text: " + ex.Message, true);
return;
}
}