renamed EventAggregator to MessageAggregator

NzbDrone.Common/Messaging/MessageAggregator.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using NLog;
+
+namespace NzbDrone.Common.Messaging
+{
+    public class MessageAggregator : IMessageAggregator
+    {
+        private readonly Logger _logger;
+        private readonly Func<IEnumerable<IProcessMessage>> _handlers;
+
+        public MessageAggregator(Logger logger, Func<IEnumerable<IProcessMessage>> handlers)
+        {
+            _logger = logger;
+            _handlers = handlers;
+        }
+
+        public void Publish<TEvent>(TEvent message) where TEvent : IEvent
+        {
+            _logger.Trace("Publishing {0}", message.GetType().Name);
+
+            //call synchronous handlers first.
+            foreach (var handler in _handlers().OfType<IHandle<TEvent>>())
+            {
+                _logger.Debug("{0} -> {1}", message.GetType().Name, handler.GetType().Name);
+                handler.Handle(message);
+                _logger.Debug("{0} <- {1}", message.GetType().Name, handler.GetType().Name);
+            }
+
+            foreach (var handler in _handlers().OfType<IHandleAsync<TEvent>>())
+            {
+                var handlerLocal = handler;
+                Task.Factory.StartNew(() =>
+                    {
+                        _logger.Debug("{0} ~> {1}", message.GetType().Name, handlerLocal.GetType().Name);
+                        handlerLocal.HandleAsync(message);
+                        _logger.Debug("{0} <~ {1}", message.GetType().Name, handlerLocal.GetType().Name);
+                    });
+            }
+        }
+
+        public void Execute<TCommand>(TCommand message) where TCommand : ICommand
+        {
+            throw new NotImplementedException();
+        }
+    }
+}