private void WriteEntry(LogLevel level, string message, Exception exception)
{
Contract.Requires<ArgumentNullException>(!String.IsNullOrEmpty(message));
// find any filter that says no to logging
Contract.Assume(_filters != null);
if (_filters.Any(filter => !filter.CanLog(_loggedType, level)))
{
Console.WriteLine("Filter blocks");
return;
}
StackFrame[] frames = new StackTrace(2).GetFrames();
if (frames != null)
frames = frames.Take(5).ToArray();
string userName = Thread.CurrentPrincipal.Identity.Name;
if (string.IsNullOrEmpty(userName))
userName = Environment.UserName;
var threadId = Thread.CurrentThread.ManagedThreadId;
if (threadId<= 0)
throw new InvalidOperationException("Expected to get a valid thread id.");
Contract.Assume(_loggedType != null);
var entry = new LogEntry(_loggedType, level, DateTime.Now, threadId,
userName, message) {Exception = exception, StackFrames = frames};
foreach (var target in _targets)
{
target.Enqueue(entry);
}
}
