Alphashack.Graphdat.Agent.SqlTrace.SqlTraceReader.ReadInstanceTraces C# (CSharp) Method

        private void ReadInstanceTraces(Dictionary<string, TraceInfo> instances)
        {
            foreach (var instance in instances)
            {
                // has the trace been read already
                if (instance.Value.TraceRead) continue;

                // read the second last written trace, the last one is still in use by sql server
                var fileNumberToRead = instance.Value.MaxFileNumber - 1;
                if (fileNumberToRead < 0) continue;

                DebugHelper.LogEntry(_eventLog, string.Format("Read instance trace: {0}", instance.Key));

                var filename = string.Format(string.Format("{0}\\graphdat_{1}{2}{3}.trc",
                    _workDirectory,
                    instance.Key,
                    fileNumberToRead > 0 ? "_" : "",
                    fileNumberToRead > 0 ? fileNumberToRead.ToString() : ""));

                // does the file still exist
                if (!File.Exists(filename)) continue;

                // read the trace
                ReadTraceFile(filename);
                instance.Value.TraceRead = true;
            }
        }