/// <summary>
/// Method to whatch <see cref="MemoryAppenderWithEvents"/> logs events.
/// </summary>
public MemoryLogWatcher()
{
// Get the memory appender
memoryAppender = (MemoryAppenderWithEvents)Array.Find(LogManager.GetRepository().GetAppenders(), IsMemoryAppender);
if (memoryAppender == null)
{
throw new NullReferenceException("Log4net memory appender not found !");
}
// Read in the log content
LogContent = GetEvents(memoryAppender);
// Add an event handler to handle updates from the MemoryAppender
memoryAppender.Updated += HandleUpdate;
}
/// <summary>
/// Method te get the events formated into a string.
/// </summary>
/// <param name="memoryAppender">The memory appender with logs events <see cref="MemoryAppenderWithEvents"/></param>
/// <returns>The events formated into a string.</returns>
public string GetEvents(MemoryAppenderWithEvents memoryAppender)
{
StringBuilder output = new StringBuilder();
// Get any events that may have occurred
LoggingEvent[] events = memoryAppender.GetEvents();
// Check that there are events to return
if (events != null && events.Length > 0)
{
// If there are events, we clear them from the logger, since we're done with them
memoryAppender.Clear();
// Iterate through each event
foreach (LoggingEvent ev in events)
{
#if DEBUG
// Construct the line we want to trace
Trace.WriteLine($"{ev.TimeStamp.ToString("yyyy-MM-dd HH:mm:ss,fff")} [{ev.ThreadName}] {ev.Level} {ev.LoggerName} : {ev.RenderedMessage}");
// Append to the StringBuilder
output.Append($"{ev.TimeStamp.ToString("HH:mm:ss,fff")} {ev.Level} : {ev.RenderedMessage}\r\n");
#else
if (ev.Level >= Level.Warn)
{
// Construct the line we want to trace
Trace.WriteLine($"{ev.TimeStamp.ToString("yyyy-MM-dd HH:mm:ss,fff")} [{ev.ThreadName}] {ev.Level} {ev.LoggerName} : {ev.RenderedMessage}");
// Append to the StringBuilder
output.Append($"{ev.RenderedMessage}\r\n");
}
#endif
}
}
// Return the constructed output
return(output.ToString());
}
