/// <summary>
/// Execute search & get hit list
/// </summary>
/// <param name="saveHitlist"></param>
/// <returns></returns>
public bool ExecuteSearch(bool saveHitlist)
{
int voi, ti, fi;
ResultsTable rt;
ResultsField rfld;
MetaTable mt;
MetaColumn mc, mc2;
if (saveHitlist) // clear current list
{
SessionManager.CurrentResultKeys = new List <string>();
if (QueryManager.StatusBarManager != null)
{
QueryManager.StatusBarManager.DisplayCurrentCount();
}
}
// Start thread running the query
QueryResultsAvailable = false;
QueryEngineException = null;
ThreadStart ts = new ThreadStart(ExecuteQueryThreadMethod);
Thread executeQueryThread = new Thread(ts);
executeQueryThread.Name = "ExecuteSearch";
executeQueryThread.IsBackground = true;
executeQueryThread.SetApartmentState(ApartmentState.STA);
executeQueryThread.Start();
// Put up message for user
if (((Query.ResultKeys != null && Query.UseResultKeys) || // already have list
ResultsFormat.SessionOutputFormContext) && !QueryEngineStatsForm.ShowStats)
{
Progress.Show("Retrieving data...", UmlautMobius.String, true, "Cancelling retrieval...");
}
else // normal type search
{
Progress.Show("Searching database - 0:00", UmlautMobius.String, true, "Cancelling search...");
if (QueryEngineStatsForm.ShowStats)
{
QueryEngineStatsForm.StartNewQueryExecution(Query);
QueryEngineStatsForm.StartingSearch();
}
}
// Wait until results available or the query is cancelled by the user
while (true)
{
Thread.Sleep(100);
Application.DoEvents();
if (QueryResultsAvailable) // completed normally
{
ResultsKeys = QueryEngine.GetKeys();
if (saveHitlist) // store for session manager also (may differ but probably shouldn't)
{
SessionManager.CurrentResultKeys = ResultsKeys;
}
//Progress.Hide();
break;
}
else if (QueryEngineException != null)
{
Progress.Hide();
if (QueryEngineException is QueryException ||
QueryEngineException is UserQueryException)
{
throw QueryEngineException;
}
else
{
throw new Exception(QueryEngineException.Message, QueryEngineException);
}
}
else if (Progress.CancelRequested)
{
if (QueryEngine != null)
{
QueryEngine.Cancel(false); // start the cancel
}
Thread.Sleep(250);
Application.DoEvents();
if (executeQueryThread != null)
{
executeQueryThread.Abort(); // kill the local thread executing the query
}
Progress.Hide();
return(false);
}
}
// If the query contains tables marked for remapping then build new expanded query & use going forward
// modifiedQuery = QueryEngine.DoPresearchChecksAndTransforms(Query); // do any presearch transforms
OriginalQuery = Query;
if (TransformedQuery != null)
{
//ResultsPages qrp = query.ResultsPages;
//ResultsPages mqrp = modifiedQuery.ResultsPages; // use same set of results pages so view changes propagate back to original query
Query.PresearchDerivedQuery = TransformedQuery; // link original query to the transformed query
Query = TransformedQuery; // replace original query with this query
}
else
{
Query.PresearchDerivedQuery = null;
}
InitializeQueryManager(QueryManager, Query, QueryManager.ResultsFormat, QueryEngine, ResultsKeys);
// Save the hit list as needed
if (saveHitlist)
{
CidList currentList = new CidList(ResultsKeys);
CidListCommand.WriteCurrentList(currentList);
SessionManager.DisplayCurrentCount();
}
return(true);
}