protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
this.listener = new ObservableEventListener();
// Note: Enable Informational messages (and not just errors), even though not all of them will be flushed to the log file.
listener.EnableEvents(RxFlushQuickStartEventSource.Log, EventLevel.Informational);
// FlushOnTrigger is a custom extension method that shows how you can leverage the power of Reactive Extensions (Rx)
// to perform filtering (or transformation) of the event stream before it is sent to the underlying sink.
// In this case, FlushOnTrigger buffers the last 3 event entries that are > EventLevel.Error (such as informational
// entries), and only if an error occurs afterwards, then these informational entries are flushed to the sink,
// so the admin has some additional diagnostics information, without the need of logging absolutely every message
// even when the application is behaving correctly.
// Note: For basic scenarios, you DO NOT need to use Rx, and SLAB does not depend on it.
listener
.FlushOnEventLevel(EventLevel.Error, bufferSize: 3)
.LogToFlatFile("RxQuickStart-log.txt");
}
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
this.listener = new ObservableEventListener();
// Note: Enable Informational messages (and not just errors), even though not all of them will be flushed to the log file.
listener.EnableEvents(RxFlushQuickStartEventSource.Log, EventLevel.Informational);
// FlushOnTrigger is a custom extension method that shows how you can leverage the power of Reactive Extensions (Rx)
// to perform filtering (or transformation) of the event stream before it is sent to the underlying sink.
// In this case, FlushOnTrigger buffers the last 3 event entries that are > EventLevel.Error (such as informational
// entries), and only if an error occurs afterwards, then these informational entries are flushed to the sink,
// so the admin has some additional diagnostics information, without the need of logging absolutely every message
// even when the application is behaving correctly.
// Note: For basic scenarios, you DO NOT need to use Rx, and SLAB does not depend on it.
listener
.FlushOnEventLevel(EventLevel.Error, bufferSize: 3)
.LogToFlatFile("RxQuickStart-log.txt");
}