protected override object CreateHandlerFromScope <TBusEvent>(IDependencyResolverScope scope, TBusEvent busEvent, Type handlerType, NimbusMessage nimbusMessage)
{
var handler = (IHandleCompetingEvent <TBusEvent>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, nimbusMessage);
return(handler);
}
protected override object CreateHandlerFromScope <TBusEvent>(IDependencyResolverScope scope, TBusEvent busEvent, Type handlerType, BrokeredMessage brokeredMessage)
{
var handler = (IHandleMulticastEvent <TBusEvent>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, brokeredMessage);
return(handler);
}
public IOutboundInterceptor[] CreateInterceptors(IDependencyResolverScope scope, BrokeredMessage brokeredMessage)
{
return(_globalOutboundInterceptorTypes
.Value
.Select(t => (IOutboundInterceptor)scope.Resolve(t))
.Do(interceptor => _propertyInjector.Inject(interceptor, brokeredMessage))
.ToArray());
}
public IInboundInterceptor[] CreateInterceptors(IDependencyResolverScope scope, object handler, object message, NimbusMessage nimbusMessage)
{
var globalInterceptors = GetGlobalInterceptorTypes();
var classLevelInterceptors = GetClassLevelInterceptorTypes(handler);
var methodLevelInterceptors = GetMethodLevelInterceptorTypes(handler, message);
var interceptors = new Type[0]
.Union(globalInterceptors)
.Union(classLevelInterceptors)
.Union(methodLevelInterceptors)
.DistinctBy(t => t.FullName)
.Select(t => (IInboundInterceptor)scope.Resolve(t))
.Do(interceptor => _propertyInjector.Inject(interceptor, nimbusMessage))
.OrderByDescending(i => i.Priority)
.ThenBy(i => i.GetType().FullName)
.ToArray();
return(interceptors);
}
// ReSharper disable UnusedMember.Local
private async Task Dispatch <TBusRequest, TBusResponse>(TBusRequest busRequest, NimbusMessage nimbusMessage, Type handlerType)
where TBusRequest : IBusMulticastRequest <TBusRequest, TBusResponse>
where TBusResponse : IBusMulticastResponse
{
var replyQueueName = nimbusMessage.From;
var replyQueueClient = _transport.GetQueueSender(replyQueueName);
Exception exception = null;
using (var scope = _dependencyResolver.CreateChildScope())
{
var handler = (IHandleMulticastRequest <TBusRequest, TBusResponse>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, nimbusMessage);
var inboundInterceptors = _inboundInterceptorFactory.CreateInterceptors(scope, handler, busRequest, nimbusMessage);
foreach (var interceptor in inboundInterceptors)
{
_logger.Debug("Executing OnRequestHandlerExecuting on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await interceptor.OnMulticastRequestHandlerExecuting(busRequest, nimbusMessage);
_logger.Debug("Executed OnRequestHandlerExecuting on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
try
{
var response = await handler.Handle(busRequest);
if (response != null)
{
var responseMessage = await _nimbusMessageFactory.CreateSuccessfulResponse(replyQueueName, response, nimbusMessage);
DispatchLoggingContext.NimbusMessage = responseMessage;
var outboundInterceptors = _outboundInterceptorFactory.CreateInterceptors(scope, nimbusMessage);
_logger.Debug("Sending successful response message {0} to {1} [MessageId:{2}, CorrelationId:{3}]",
responseMessage.SafelyGetBodyTypeNameOrDefault(),
replyQueueName,
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
foreach (var interceptor in outboundInterceptors)
{
await interceptor.OnMulticastResponseSending(response, nimbusMessage);
}
await replyQueueClient.Send(responseMessage);
foreach (var interceptor in outboundInterceptors.Reverse())
{
await interceptor.OnMulticastResponseSent(response, nimbusMessage);
}
_logger.Debug("Sent successful response message {0} to {1} [MessageId:{2}, CorrelationId:{3}]",
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
replyQueueName,
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
else
{
_logger.Debug("Handler declined to reply. [MessageId: {0}, CorrelationId: {1}]", nimbusMessage.MessageId, nimbusMessage.CorrelationId);
}
}
catch (Exception exc)
{
// Capture any exception so we can send a failed response outside the catch block
exception = exc;
}
if (exception == null)
{
foreach (var interceptor in inboundInterceptors.Reverse())
{
_logger.Debug("Executing OnRequestHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await interceptor.OnMulticastRequestHandlerSuccess(busRequest, nimbusMessage);
_logger.Debug("Executed OnRequestHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
}
else
{
foreach (var interceptor in inboundInterceptors.Reverse())
{
_logger.Debug("Executing OnRequestHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await interceptor.OnMulticastRequestHandlerError(busRequest, nimbusMessage, exception);
_logger.Debug("Executed OnRequestHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
var failedResponseMessage =
await _nimbusMessageFactory.CreateFailedResponse(replyQueueName, nimbusMessage, exception);
_logger.Warn("Sending failed response message to {0} [MessageId:{1}, CorrelationId:{2}]",
replyQueueName,
exception.Message,
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await replyQueueClient.Send(failedResponseMessage);
_logger.Debug("Sent failed response message to {0} [MessageId:{1}, CorrelationId:{2}]",
replyQueueName,
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
}
}
private async Task Dispatch <TBusCommand>(TBusCommand busCommand, BrokeredMessage brokeredMessage, Type handlerType) where TBusCommand : IBusCommand
{
using (var scope = _dependencyResolver.CreateChildScope())
{
var handler = (IHandleCommand <TBusCommand>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, brokeredMessage);
var interceptors = _inboundInterceptorFactory.CreateInterceptors(scope, handler, busCommand, brokeredMessage);
Exception exception;
try
{
foreach (var interceptor in interceptors)
{
_logger.Debug(
"Executing OnCommandHandlerExecuting on {InterceptorType} for message [MessageType:{MessageType}, MessageId:{MessageId}, CorrelationId:{CorrelationId}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await interceptor.OnCommandHandlerExecuting(busCommand, brokeredMessage);
_logger.Debug(
"Executed OnCommandHandlerExecuting on {InterceptorType} for message [MessageType:{MessageType}, MessageId:{MessageId}, CorrelationId:{CorrelationId}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
var handlerTask = _taskFactory.StartNew(async() => await handler.Handle(busCommand), TaskContext.Handle).Unwrap();
var longRunningTask = handler as ILongRunningTask;
if (longRunningTask != null)
{
var wrapper = new LongRunningTaskWrapper(handlerTask, longRunningTask, brokeredMessage, _clock, _logger, _defaultMessageLockDuration, _taskFactory);
await wrapper.AwaitCompletion();
}
else
{
await handlerTask;
}
foreach (var interceptor in interceptors.Reverse())
{
_logger.Debug("Executing OnCommandHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await interceptor.OnCommandHandlerSuccess(busCommand, brokeredMessage);
_logger.Debug("Executed OnCommandHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
return;
}
catch (Exception exc)
{
exception = exc;
}
foreach (var interceptor in interceptors.Reverse())
{
_logger.Debug("Executing OnCommandHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await interceptor.OnCommandHandlerError(busCommand, brokeredMessage, exception);
_logger.Debug("Executed OnCommandHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
_logger.Debug("Failed to Dispatch CommandMessage for message [MessageType:{0}, MessageId:{1}, CorrelationId:{2}]",
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
throw new DispatchFailedException("Failed to Dispatch CommandMessage", exception);
}
}
// ReSharper disable UnusedMember.Local
private async Task Dispatch <TBusRequest, TBusResponse>(TBusRequest busRequest, BrokeredMessage brokeredMessage, Type handlerType)
where TBusRequest : IBusMulticastRequest <TBusRequest, TBusResponse>
where TBusResponse : IBusMulticastResponse
{
var replyQueueName = brokeredMessage.ReplyTo;
var replyQueueClient = _messagingFactory.GetQueueSender(replyQueueName);
Exception exception = null;
using (var scope = _dependencyResolver.CreateChildScope())
{
var handler = (IHandleMulticastRequest <TBusRequest, TBusResponse>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, brokeredMessage);
var inboundInterceptors = _inboundInterceptorFactory.CreateInterceptors(scope, handler, busRequest, brokeredMessage);
foreach (var interceptor in inboundInterceptors)
{
_logger.Debug("Executing OnRequestHandlerExecuting on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await interceptor.OnMulticastRequestHandlerExecuting(busRequest, brokeredMessage);
_logger.Debug("Executed OnRequestHandlerExecuting on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
try
{
var handlerTask = handler.Handle(busRequest);
var longRunningTask = handlerTask as ILongRunningTask;
TBusResponse response;
if (longRunningTask != null)
{
var wrapperTask = new LongRunningTaskWrapper <TBusResponse>(handlerTask, longRunningTask, brokeredMessage, _clock, _logger, _defaultMessageLockDuration, _taskFactory);
response = await wrapperTask.AwaitCompletion();
}
else
{
response = await handlerTask;
}
// ReSharper disable CompareNonConstrainedGenericWithNull
if (response != null)
// ReSharper restore CompareNonConstrainedGenericWithNull
{
var responseMessage = (await _brokeredMessageFactory.CreateSuccessfulResponse(response, brokeredMessage))
.DestinedForQueue(replyQueueName)
;
var outboundInterceptors = _outboundInterceptorFactory.CreateInterceptors(scope, brokeredMessage);
_logger.Debug("Sending successful response message {0} to {1} [MessageId:{2}, CorrelationId:{3}]",
responseMessage.SafelyGetBodyTypeNameOrDefault(),
replyQueueName,
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
foreach (var interceptor in outboundInterceptors)
{
await interceptor.OnMulticastResponseSending(response, brokeredMessage);
}
await replyQueueClient.Send(responseMessage);
foreach (var interceptor in outboundInterceptors.Reverse())
{
await interceptor.OnMulticastResponseSent(response, brokeredMessage);
}
_logger.Info("Sent successful response message {0} to {1} [MessageId:{2}, CorrelationId:{3}]",
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
replyQueueName,
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
else
{
_logger.Info("Handler declined to reply. [MessageId: {0}, CorrelationId: {1}]", brokeredMessage.MessageId, brokeredMessage.CorrelationId);
}
}
catch (Exception exc)
{
// Capture any exception so we can send a failed response outside the catch block
exception = exc;
}
if (exception == null)
{
foreach (var interceptor in inboundInterceptors.Reverse())
{
_logger.Debug("Executing OnRequestHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await interceptor.OnMulticastRequestHandlerSuccess(busRequest, brokeredMessage);
_logger.Debug("Executed OnRequestHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
}
else
{
foreach (var interceptor in inboundInterceptors.Reverse())
{
_logger.Debug("Executing OnRequestHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await interceptor.OnMulticastRequestHandlerError(busRequest, brokeredMessage, exception);
_logger.Debug("Executed OnRequestHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
brokeredMessage.SafelyGetBodyTypeNameOrDefault(),
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
var failedResponseMessage =
await _brokeredMessageFactory.CreateFailedResponse(brokeredMessage, exception);
_logger.Warn("Sending failed response message to {0} [MessageId:{1}, CorrelationId:{2}]",
replyQueueName,
exception.Message,
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
await replyQueueClient.Send(failedResponseMessage);
_logger.Info("Sent failed response message to {0} [MessageId:{1}, CorrelationId:{2}]",
replyQueueName,
brokeredMessage.MessageId,
brokeredMessage.CorrelationId);
}
}
}
// ReSharper disable UnusedMember.Local
private async Task Dispatch <TBusRequest, TBusResponse>(TBusRequest busRequest, NimbusMessage nimbusMessage, Type handlerType)
where TBusRequest : IBusRequest <TBusRequest, TBusResponse>
where TBusResponse : IBusResponse
{
var replyQueueName = nimbusMessage.From;
var replyQueueClient = _transport.GetQueueSender(replyQueueName);
using (var scope = _dependencyResolver.CreateChildScope())
{
var handler = (IHandleRequest <TBusRequest, TBusResponse>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, nimbusMessage);
var inboundInterceptors = _inboundInterceptorFactory.CreateInterceptors(scope, handler, busRequest, nimbusMessage);
Exception exception = null;
try
{
foreach (var interceptor in inboundInterceptors)
{
_logger.Debug("Executing OnRequestHandlerExecuting for {InterceptorType}", interceptor.GetType().Name);
await interceptor.OnRequestHandlerExecuting(busRequest, nimbusMessage);
_logger.Debug("Executed OnRequestHandlerExecuting for {InterceptorType}", interceptor.GetType().Name);
}
_logger.Debug("Dispatching to {HandlerType}", handler.GetType().Name);
var handlerTask = handler.Handle(busRequest);
var response = await handlerTask;
_logger.Debug("Dispatched to {HandlerType}", handler.GetType().Name);
var responseMessage = await _nimbusMessageFactory.CreateSuccessfulResponse(replyQueueName, response, nimbusMessage);
DispatchLoggingContext.NimbusMessage = responseMessage;
var outboundInterceptors = _outboundInterceptorFactory.CreateInterceptors(scope, nimbusMessage);
foreach (var interceptor in outboundInterceptors.Reverse())
{
_logger.Debug("Executing OnResponseSending for {InterceptorType}", interceptor.GetType().Name);
await interceptor.OnResponseSending(response, responseMessage);
_logger.Debug("Executed OnResponseSending for {InterceptorType}", interceptor.GetType().Name);
}
_logger.Debug("Sending successful response message");
await replyQueueClient.Send(responseMessage);
_logger.Debug("Sent successful response message");
foreach (var interceptor in outboundInterceptors.Reverse())
{
_logger.Debug("Executing OnResponseSent for {InterceptorType}", interceptor.GetType().Name);
await interceptor.OnResponseSent(response, responseMessage);
_logger.Debug("Executed OnResponseSent for {InterceptorType}", interceptor.GetType().Name);
}
}
catch (Exception exc)
{
// Capture any exception so we can send a failed response outside the catch block
exception = exc;
_logger.Warn(exc, "Request message dispatch failed.");
}
if (exception == null)
{
foreach (var interceptor in inboundInterceptors.Reverse())
{
_logger.Debug("Executing OnRequestHandlerSuccess for {InterceptorType}", interceptor.GetType().Name);
await interceptor.OnRequestHandlerSuccess(busRequest, nimbusMessage);
_logger.Debug("Executed OnRequestHandlerSuccess for {InterceptorType}", interceptor.GetType().Name);
}
}
else
{
foreach (var interceptor in inboundInterceptors.Reverse())
{
_logger.Debug("Executing OnRequestHandlerError for {InterceptorType}", interceptor.GetType().Name);
await interceptor.OnRequestHandlerError(busRequest, nimbusMessage, exception);
_logger.Debug("Executed OnRequestHandlerError for {InterceptorType}", interceptor.GetType().Name);
}
var failedResponseMessage = (await _nimbusMessageFactory.CreateFailedResponse(replyQueueName, nimbusMessage, exception));
_logger.Debug("Sending failed response message");
await replyQueueClient.Send(failedResponseMessage);
_logger.Debug("Sent failed response message");
}
}
}
private async Task Dispatch <TBusCommand>(TBusCommand busCommand, NimbusMessage nimbusMessage, Type handlerType) where TBusCommand : IBusCommand
{
using (var scope = _dependencyResolver.CreateChildScope())
{
var handler = (IHandleCommand <TBusCommand>)scope.Resolve(handlerType);
_propertyInjector.Inject(handler, nimbusMessage);
var interceptors = _inboundInterceptorFactory.CreateInterceptors(scope, handler, busCommand, nimbusMessage);
Exception exception;
try
{
foreach (var interceptor in interceptors)
{
_logger.Debug(
"Executing OnCommandHandlerExecuting on {InterceptorType} for message [MessageType:{MessageType}, MessageId:{MessageId}, CorrelationId:{CorrelationId}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await interceptor.OnCommandHandlerExecuting(busCommand, nimbusMessage);
_logger.Debug(
"Executed OnCommandHandlerExecuting on {InterceptorType} for message [MessageType:{MessageType}, MessageId:{MessageId}, CorrelationId:{CorrelationId}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
await handler.Handle(busCommand);
foreach (var interceptor in interceptors.Reverse())
{
_logger.Debug("Executing OnCommandHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await interceptor.OnCommandHandlerSuccess(busCommand, nimbusMessage);
_logger.Debug("Executed OnCommandHandlerSuccess on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
return;
}
catch (Exception exc)
{
exception = exc;
}
foreach (var interceptor in interceptors.Reverse())
{
_logger.Debug("Executing OnCommandHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
await interceptor.OnCommandHandlerError(busCommand, nimbusMessage, exception);
_logger.Debug("Executed OnCommandHandlerError on {0} for message [MessageType:{1}, MessageId:{2}, CorrelationId:{3}]",
interceptor.GetType().FullName,
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
}
_logger.Debug("Failed to Dispatch CommandMessage for message [MessageType:{0}, MessageId:{1}, CorrelationId:{2}]",
nimbusMessage.SafelyGetBodyTypeNameOrDefault(),
nimbusMessage.MessageId,
nimbusMessage.CorrelationId);
throw new DispatchFailedException("Failed to Dispatch CommandMessage", exception);
}
}