private EventLogSessionContext GetEventLogSessionContext(DataCollectionContext dataCollectionContext)
{
EventLogSessionContext eventLogSessionContext;
bool eventLogContainerFound;
lock (this.ContextMap)
{
eventLogContainerFound = this.ContextMap.TryGetValue(dataCollectionContext, out eventLogSessionContext);
}
if (!eventLogContainerFound)
{
string msg = string.Format(
CultureInfo.InvariantCulture,
Resource.ContextNotFoundException,
dataCollectionContext.ToString());
throw new EventLogCollectorException(msg, null);
}
return(eventLogSessionContext);
}
/// <summary>
/// The write event logs.
/// </summary>
/// <param name="eventLogEntries">
/// The event log entries.
/// </param>
/// <param name="maxLogEntries">
/// Max Log Entries.
/// </param>
/// <param name="dataCollectionContext">
/// The data collection context.
/// </param>
/// <param name="requestedDuration">
/// The requested duration.
/// </param>
/// <param name="timeRequestReceived">
/// The time request received.
/// </param>
/// <returns>
/// The <see cref="string"/>.
/// </returns>
internal string WriteEventLogs(List <EventLogEntry> eventLogEntries, int maxLogEntries, DataCollectionContext dataCollectionContext, TimeSpan requestedDuration, DateTime timeRequestReceived)
{
// Generate a unique but friendly Directory name in the temp directory
string eventLogDirName = string.Format(
CultureInfo.InvariantCulture,
"{0}-{1}-{2:yyyy}{2:MM}{2:dd}-{2:HH}{2:mm}{2:ss}.{2:fff}",
"Event Log",
Environment.MachineName,
DateTime.Now);
string eventLogDirPath = Path.Combine(Path.GetTempPath(), eventLogDirName);
// Create the directory
this.fileHelper.CreateDirectory(eventLogDirPath);
string eventLogBasePath = Path.Combine(eventLogDirPath, EventLogFileName);
bool unusedFilenameFound = false;
string eventLogPath = eventLogBasePath + ".xml";
if (this.fileHelper.Exists(eventLogPath))
{
for (int i = 1; !unusedFilenameFound; i++)
{
eventLogPath = eventLogBasePath + "-" + i.ToString(CultureInfo.InvariantCulture) + ".xml";
if (!this.fileHelper.Exists(eventLogPath))
{
unusedFilenameFound = true;
}
}
}
DateTime minDate = DateTime.MinValue;
// Limit entries to a certain time range if requested
if (requestedDuration < TimeSpan.MaxValue)
{
try
{
minDate = timeRequestReceived - requestedDuration;
}
catch (ArgumentOutOfRangeException)
{
minDate = DateTime.MinValue;
}
}
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
EventLogXmlWriter.WriteEventLogEntriesToXmlFile(
eventLogPath,
eventLogEntries.Where(
entry => entry.TimeGenerated > minDate && entry.TimeGenerated < DateTime.MaxValue).OrderBy(x => x.TimeGenerated).ToList().Take(maxLogEntries).ToList(),
this.fileHelper);
stopwatch.Stop();
if (EqtTrace.IsVerboseEnabled)
{
EqtTrace.Verbose(
string.Format(
CultureInfo.InvariantCulture,
"EventLogDataContainer: Wrote {0} event log entries to file '{1}' in {2} seconds",
eventLogEntries.Count,
eventLogPath,
stopwatch.Elapsed.TotalSeconds.ToString(CultureInfo.InvariantCulture)));
}
// Write the event log file
FileTransferInformation fileTransferInformation =
new FileTransferInformation(dataCollectionContext, eventLogPath, true, this.fileHelper);
this.dataSink.SendFileAsync(fileTransferInformation);
if (EqtTrace.IsVerboseEnabled)
{
EqtTrace.Verbose(
"EventLogDataContainer: Event log successfully sent for data collection context '{0}'.",
dataCollectionContext.ToString());
}
return(eventLogPath);
}
