internal void ReloadConfigOnTimer(object state)
{
if (_reloadTimer == null && _isDisposing)
{
return; //timer was disposed already.
}
LoggingConfiguration oldConfig = (LoggingConfiguration)state;
InternalLogger.Info("Reloading configuration...");
lock (_lockObject)
{
if (_isDisposing)
{
return; //timer was disposed already.
}
var currentTimer = _reloadTimer;
if (currentTimer != null)
{
_reloadTimer = null;
currentTimer.WaitForDispose(TimeSpan.Zero);
}
}
lock (_logFactory._syncRoot)
{
LoggingConfiguration newConfig;
try
{
if (!ReferenceEquals(_logFactory._config, oldConfig))
{
InternalLogger.Warn("NLog Config changed in between. Not reloading.");
return;
}
newConfig = oldConfig.ReloadNewConfig();
if (newConfig == null || ReferenceEquals(newConfig, oldConfig))
{
return;
}
}
catch (Exception exception)
{
if (exception.MustBeRethrownImmediately())
{
throw; // Throwing exceptions here will crash the entire application (.NET 2.0 behavior)
}
InternalLogger.Warn(exception, "NLog configuration failed to reload");
_logFactory?.NotifyConfigurationReloaded(new LoggingConfigurationReloadedEventArgs(false, exception));
return;
}
try
{
TryUnwatchConfigFile();
_logFactory.Configuration = newConfig; // Triggers LogFactory to call Activated(...) that adds file-watch again
_logFactory?.NotifyConfigurationReloaded(new LoggingConfigurationReloadedEventArgs(true));
}
catch (Exception exception)
{
if (exception.MustBeRethrownImmediately())
{
throw; // Throwing exceptions here will crash the entire application (.NET 2.0 behavior)
}
InternalLogger.Warn(exception, "NLog configuration reloaded, failed to be assigned");
_watcher.Watch(oldConfig.FileNamesToWatch);
_logFactory?.NotifyConfigurationReloaded(new LoggingConfigurationReloadedEventArgs(false, exception));
}
}
}
