public IEnumerable <IMessagePump> CreateAll()
{
var openGenericHandlerType = typeof(IHandleRequest <,>);
var handlerTypes = _typeProvider.RequestHandlerTypes.ToArray();
// Create a single connection to each request queue determined by routing
var allMessageTypesHandledByThisEndpoint = _handlerMapper.GetMessageTypesHandledBy(openGenericHandlerType, handlerTypes);
var bindings = allMessageTypesHandledByThisEndpoint
.Select(m => new { MessageType = m, QueuePath = _router.Route(m, QueueOrTopic.Queue, _pathFactory) })
.GroupBy(b => b.QueuePath)
.Select(g => new { QueuePath = g.Key, HandlerTypes = g.SelectMany(x => _handlerMapper.GetHandlerTypesFor(openGenericHandlerType, x.MessageType)) });
// Each binding to a queue can handle one or more request types depending on the routes that are defined
foreach (var binding in bindings)
{
var messageTypes = _handlerMapper.GetMessageTypesHandledBy(openGenericHandlerType, binding.HandlerTypes).ToArray();
_logger.Debug("Creating message pump for request queue '{0}' handling {1}", binding.QueuePath, messageTypes.ToTypeNameSummary(selector: t => t.Name));
var messageReceiver = _transport.GetQueueReceiver(binding.QueuePath);
var handlerMap = _handlerMapper.GetHandlerMapFor(openGenericHandlerType, messageTypes);
var messageDispatcher = _messageDispatcherFactory.Create(openGenericHandlerType, handlerMap);
var pump = _container.ResolveWithOverrides <MessagePump>(messageReceiver, messageDispatcher);
GarbageMan.Add(pump);
yield return(pump);
}
}
public IEnumerable <IMessagePump> CreateAll()
{
var openGenericHandlerType = typeof(IHandleCommand <>);
var handlerTypes = _typeProvider.CommandHandlerTypes.ToArray();
// Create a single connection to each command queue determined by routing
var allMessageTypesHandledByThisEndpoint = _handlerMapper.GetMessageTypesHandledBy(openGenericHandlerType, handlerTypes);
var bindings = allMessageTypesHandledByThisEndpoint
.Select(m => new { MessageType = m, QueuePath = _router.Route(m, QueueOrTopic.Queue) })
.GroupBy(b => b.QueuePath)
.Select(g => new { QueuePath = g.Key, HandlerTypes = g.SelectMany(x => _handlerMapper.GetHandlerTypesFor(openGenericHandlerType, x.MessageType)) });
// Each binding to a queue can handle one or more command types depending on the routes that are defined
foreach (var binding in bindings)
{
var messageTypes = _handlerMapper.GetMessageTypesHandledBy(openGenericHandlerType, binding.HandlerTypes).ToArray();
_logger.Debug("Creating message pump for command queue '{0}' handling {1}", binding.QueuePath, messageTypes.ToTypeNameSummary(selector: t => t.Name));
var messageReceiver = _messagingFactory.GetQueueReceiver(binding.QueuePath);
var handlerMap = _handlerMapper.GetHandlerMapFor(openGenericHandlerType, messageTypes);
var pump = new MessagePump(_clock,
_dispatchContextManager,
_logger,
_messageDispatcherFactory.Create(openGenericHandlerType, handlerMap),
messageReceiver,
_taskFactory);
_garbageMan.Add(pump);
yield return(pump);
}
}
public IEnumerable <IMessagePump> CreateAll()
{
var openGenericHandlerType = typeof(IHandleMulticastRequest <,>);
var handlerTypes = _typeProvider.MulticastRequestHandlerTypes.ToArray();
// Events are routed to Topics and we'll create a competing subscription for the logical endpoint
var allMessageTypesHandledByThisEndpoint = _handlerMapper.GetMessageTypesHandledBy(openGenericHandlerType, handlerTypes);
var bindings = allMessageTypesHandledByThisEndpoint
.Select(m => new { MessageType = m, TopicPath = _router.Route(m, QueueOrTopic.Topic, _pathFactory) })
.GroupBy(b => b.TopicPath)
.Select(g => new
{
TopicPath = g.Key,
MessageTypes = g.Select(x => x.MessageType),
HandlerTypes = g.SelectMany(x => _handlerMapper.GetHandlerTypesFor(openGenericHandlerType, x.MessageType))
})
.ToArray();
if (bindings.Any(b => b.MessageTypes.Count() > 1))
{
throw new NotSupportedException("Routing multiple message types through a single Topic is not supported.");
}
foreach (var binding in bindings)
{
foreach (var handlerType in binding.HandlerTypes)
{
var messageType = binding.MessageTypes.Single();
var subscriptionName = _pathFactory.SubscriptionNameFor(_applicationName, handlerType);
var filterCondition = _filterConditionProvider.GetFilterConditionFor(handlerType);
_logger.Debug("Creating message pump for multicast request subscription '{0}/{1}' handling {2} with filter {3}",
binding.TopicPath,
subscriptionName,
messageType,
filterCondition);
var messageReceiver = _transport.GetTopicReceiver(binding.TopicPath, subscriptionName, filterCondition);
var handlerMap = new Dictionary <Type, Type[]> {
{ messageType, new[] { handlerType } }
};
var messageDispatcher = _messageDispatcherFactory.Create(openGenericHandlerType, handlerMap);
var pump = _container.ResolveWithOverrides <MessagePump>(messageReceiver, messageDispatcher);
GarbageMan.Add(pump);
yield return(pump);
}
}
}
public IEnumerable <IMessagePump> CreateAll()
{
var openGenericHandlerType = typeof(IHandleMulticastEvent <>);
var handlerTypes = _typeProvider.MulticastEventHandlerTypes.ToArray();
// Events are routed to Topics and we'll create a subscription per instance of the logical endpoint to enable multicast behaviour
var allMessageTypesHandledByThisEndpoint = _handlerMapper.GetMessageTypesHandledBy(openGenericHandlerType, handlerTypes);
var bindings = allMessageTypesHandledByThisEndpoint
.Select(m => new { MessageType = m, TopicPath = _router.Route(m, QueueOrTopic.Topic) })
.GroupBy(b => b.TopicPath)
.Select(g => new
{
TopicPath = g.Key,
MessageTypes = g.Select(x => x.MessageType),
HandlerTypes = g.SelectMany(x => _handlerMapper.GetHandlerTypesFor(openGenericHandlerType, x.MessageType))
})
.ToArray();
if (bindings.Any(b => b.MessageTypes.Count() > 1))
{
throw new NotSupportedException("Routing multiple message types through a single Topic is not supported.");
}
foreach (var binding in bindings)
{
foreach (var handlerType in binding.HandlerTypes)
{
var messageType = binding.MessageTypes.Single();
var subscriptionName = PathFactory.SubscriptionNameFor(_applicationName, _instanceName, handlerType);
_logger.Debug("Creating message pump for multicast event subscription '{0}/{1}' handling {2}", binding.TopicPath, subscriptionName, messageType);
var messageReceiver = _messagingFactory.GetTopicReceiver(binding.TopicPath, subscriptionName);
var handlerMap = new Dictionary <Type, Type[]> {
{ messageType, new[] { handlerType } }
};
var pump = new MessagePump(_clock,
_dispatchContextManager,
_logger,
_messageDispatcherFactory.Create(openGenericHandlerType, handlerMap),
messageReceiver,
_taskFactory);
_garbageMan.Add(pump);
yield return(pump);
}
}
}
