public IEnumerable <LogEntry> FilterLogEntries(IEnumerable <LogEntry> logEntries, out bool itemsFiltered)
{
IEnumerable <LogEntry> entries = logEntries;
itemsFiltered = false;
if (this.executedWhereClause == string.Empty)
{
log.Debug("No query specified, returning original list.");
this.lastExecutionStatus = "Log isn't filtered because the where condition is empty";
}
else
{
log.Debug("Query specified, executing query.");
try
{
string sqlQuery = "SELECT * FROM THIS WHERE " + executedWhereClause;
if (compiledQuery == null)
{
log.Debug("Compiling new query");
compiledQuery = new EnumerableQuery <LogEntry, LogEntry>(sqlQuery);
compiledQuery.Compile();
}
else
{
log.Debug("Query is already compiled");
}
entries = entries.Query(compiledQuery);
this.lastExecutionStatus = "Log is filtered";
itemsFiltered = true;
log.Debug("Query executed.");
}
catch (Exception ex)
{
this.lastExecutionStatus = "Log isn't filtered, because of execution error";
this.Invoke(new MethodInvoker(() =>
MessageBox.Show(ex.Message, "Error while executing query", MessageBoxButtons.OK, MessageBoxIcon.Error)));
}
}
this.lastExecutionStatus += ". Last query execution: " + DateTime.Now.ToLongTimeString();
UpdateStatusText();
return(entries);
}