public StreamMessage GetLogData(LogAggregatedDataParameterMessage logAggregatedDataParameterMessage)
{
return(Channel.GetLogData(logAggregatedDataParameterMessage));
}
public StreamMessage GetLogData(LogAggregatedDataParameterMessage logAggregatedDataParameterMessage)
{
string logFileFullPath = "";
FileStream fileStream = null;
bool bSuccess = false;
// close returned stream and delete sent file on completion
OperationContext clientContext = OperationContext.Current;
clientContext.OperationCompleted += new EventHandler(delegate(object sender, EventArgs args)
{
if (fileStream != null)
{
// truncate file. there is a probability that the Log Aggregator Windows service will lock that file
// just before deleting it, so make sure the file is empty.
fileStream.SetLength(0);
fileStream.Dispose();
}
if (logFileFullPath != "" && bSuccess)
{
try
{
File.Delete(logFileFullPath);
}
catch (Exception ex)
{
_eventLog.WriteEntry(ex.ToString(), EventLogEntryType.Error);
}
}
});
if (logAggregatedDataParameterMessage.SystemPassPhrase != _systemPassPhrase)
{
return(null);
}
// aggregate logs' path: <path from root>\machineGUID\
// and then search for an available aggregated log file
string logPartialPath = _aggregatedLogsPath;
switch (logAggregatedDataParameterMessage.LogTypeAggregated)
{
case LogTypeAggregated.AdvertWeightedClicksPerChannel:
logPartialPath += "a_c_c_p_";
break;
case LogTypeAggregated.AdvertWeightedImpressionsPerChannel:
logPartialPath += "a_c_i_p_";
break;
case LogTypeAggregated.ClicksPerDatePerAsset:
logPartialPath += "c_d_a_";
break;
case LogTypeAggregated.ImpressionsPerDatePerAsset:
logPartialPath += "s_d_a_";
break;
}
// if file exists, just read it. No need to check for checksum as file will be deleted
// when transfer is complete
bSuccess = TryGetAndLockFile(ref fileStream, logPartialPath, ref logFileFullPath);
return(new StreamMessage(fileStream));
}