internal static void Write([NotNull] Type loggerType, TargetWithFilterChain targets, LogEventInfo logEvent, LogFactory factory)
{
if (targets == null)
{
return;
}
StackTraceUsage stu = targets.GetStackTraceUsage();
if (stu != StackTraceUsage.None && !logEvent.HasStackTrace)
{
StackTrace stackTrace;
#if !SILVERLIGHT
stackTrace = new StackTrace(StackTraceSkipMethods, stu == StackTraceUsage.WithSource);
#else
stackTrace = new StackTrace();
#endif
int firstUserFrame = FindCallingMethodOnStackTrace(stackTrace, loggerType);
logEvent.SetStackTrace(stackTrace, firstUserFrame);
}
ExceptionHandlerContinuation handler;
int numberOfTargets = 0;
for (var t = targets; t != null; t = t.NextInChain)
{
FilterResult result = GetFilterResult(t.FilterChain, logEvent);
if ((result == FilterResult.Ignore) || (result == FilterResult.IgnoreFinal))
{
if (InternalLogger.IsDebugEnabled)
{
InternalLogger.Debug(
"{0}.{1} Rejecting message because of a filter.",
logEvent.LoggerName,
logEvent.Level);
}
if (result == FilterResult.IgnoreFinal)
{
break;
}
}
else
{
numberOfTargets += 1;
}
}
if (factory.Configuration.PoolingEnabled())
{
handler = factory.Configuration.PoolFactory.Get <ExceptionHandlerPool, ExceptionHandlerContinuation>().Get(Thread.CurrentThread.ManagedThreadId, factory.ThrowExceptions);
}
else
{
handler = new ExceptionHandlerContinuation(Thread.CurrentThread.ManagedThreadId, factory.ThrowExceptions);
}
bool clone = numberOfTargets > 1;
// Clone a message for each target, so that each target can put it back into the pool when its done with it.
for (var t = targets; t != null; t = t.NextInChain)
{
if (!WriteToTargetWithFilterChain(t, logEvent, handler.Delegate, clone))
{
break;
}
}
// No targets at all wanted this log event, so put it back into the pool
if (numberOfTargets == 0 || clone)
{
logEvent.PutBack();
}
}