/// <summary>
/// Subscribes to the specified message type.
/// </summary>
/// <param name="messageType">The message type to subscribe to.</param>
/// <param name="subscriber">A reference to the subscriber.</param>
public void Subscribe(string messageType, SubscriberBase subscriber)
{
if (subscriber == null)
{
throw new ArgumentNullException("subscriber");
}
if (!subscriberDictionary.ContainsKey(messageType))
{
lock (subscriberDictionary)
{
if ((MessageEngine.Instance.Tracing.Switch.Level & SourceLevels.Information) == SourceLevels.Information)
{
MessageEngine.Instance.Tracing.TraceEvent(TraceEventType.Information, 0, "Adding subscription for: \"{0}\" to: \"{1}\".", messageType, subscriber.GetType().Name);
}
subscriberDictionary.Add(messageType, new List <SubscriberBase>());
}
}
List <SubscriberBase> subscriberCollection = subscriberDictionary[messageType];
subscriberCollection.Add(subscriber);
}
private static void InvokeSubscriber(MultiPartMessage msg, SubscriberBase subscriber)
{
if ((MessageEngine.Instance.Tracing.Switch.Level & SourceLevels.Verbose) == SourceLevels.Verbose)
{
MessageEngine.Instance.Tracing.TraceEvent(TraceEventType.Verbose, 0, "Invoking subscriber: \"{0}\"...", subscriber.GetType().Name);
}
try
{
subscriber.InternalInvoke(msg);
}
catch (Exception ex)
{
if (ExceptionHelper.IsCritical(ex))
{
throw;
}
else
{
try
{
if ((MessageEngine.Instance.Tracing.Switch.Level & SourceLevels.Error) == SourceLevels.Error)
{
MessageEngine.Instance.Tracing.TraceData(TraceEventType.Error, 0, ex);
}
if ((MessageEngine.Instance.Tracing.Switch.Level & SourceLevels.Error) == SourceLevels.Error)
{
MessageEngine.Instance.Tracing.TraceData(TraceEventType.Error, 0, string.Format("Message content:\n{0}", msg.ToXmlString()));
}
}
catch (Exception logEx)
{
if (ExceptionHelper.IsCritical(logEx))
{
throw;
}
}
}
}
}