public async Task ExecuteAsync()
{
var groupedCandidates = _selector.GetCandidatesMethodsOfGroupNameGrouped(_serviceProvider);
using (var scope = _serviceProvider.CreateScope())
{
var provider = scope.ServiceProvider;
var messageStore = provider.GetService <ICapMessageStore>();
var nextReceivedMessage = await messageStore.GetNextReceivedMessageToBeExcuted();
if (nextReceivedMessage != null && groupedCandidates.ContainsKey(nextReceivedMessage.Group))
{
try
{
await messageStore.ChangeReceivedMessageStateAsync(nextReceivedMessage, StatusName.Processing);
// If there are multiple consumers in the same group, we will take the first
var executeDescriptor = groupedCandidates[nextReceivedMessage.Group][0];
var consumerContext = new ConsumerContext(executeDescriptor, nextReceivedMessage.ToMessageContext());
var invoker = _consumerInvokerFactory.CreateInvoker(consumerContext);
await invoker.InvokeAsync();
await messageStore.ChangeReceivedMessageStateAsync(nextReceivedMessage, StatusName.Succeeded);
}
catch (Exception ex)
{
_logger.ReceivedMessageRetryExecutingFailed(nextReceivedMessage.KeyName, ex);
}
}
}
}
protected virtual async Task <OperateResult> ExecuteSubscribeAsync(CapReceivedMessage receivedMessage)
{
try
{
var executeDescriptorGroup = _selector.GetTopicExector(receivedMessage.Name);
if (!executeDescriptorGroup.ContainsKey(receivedMessage.Group))
{
throw new SubscriberNotFoundException(receivedMessage.Name + " has not been found.");
}
// If there are multiple consumers in the same group, we will take the first
var executeDescriptor = executeDescriptorGroup[receivedMessage.Group][0];
var consumerContext = new ConsumerContext(executeDescriptor, receivedMessage.ToMessageContext());
await _consumerInvokerFactory.CreateInvoker(consumerContext).InvokeAsync();
return(OperateResult.Success);
}
catch (SubscriberNotFoundException ex)
{
_logger.LogError("Can not be found subscribe method of name: " + receivedMessage.Name);
return(OperateResult.Failed(ex));
}
catch (Exception ex)
{
_logger.ConsumerMethodExecutingFailed($"Group:{receivedMessage.Group}, Topic:{receivedMessage.Name}", ex);
return(OperateResult.Failed(ex));
}
}
private void ProcessMessage(IServiceScope serviceScope, CapReceivedMessage receivedMessage)
{
var provider = serviceScope.ServiceProvider;
var messageStore = provider.GetRequiredService <ICapMessageStore>();
try
{
var executeDescriptorGroup = _selector.GetTopicExector(receivedMessage.KeyName);
if (executeDescriptorGroup.ContainsKey(receivedMessage.Group))
{
messageStore.ChangeReceivedMessageStateAsync(receivedMessage, StatusName.Processing).Wait();
// If there are multiple consumers in the same group, we will take the first
var executeDescriptor = executeDescriptorGroup[receivedMessage.Group][0];
var consumerContext = new ConsumerContext(executeDescriptor, receivedMessage.ToMessageContext());
_consumerInvokerFactory.CreateInvoker(consumerContext).InvokeAsync();
messageStore.ChangeReceivedMessageStateAsync(receivedMessage, StatusName.Succeeded).Wait();
}
}
catch (Exception ex)
{
_logger.ConsumerMethodExecutingFailed($"Group:{receivedMessage.Group}, Topic:{receivedMessage.KeyName}", ex);
}
}
public void CreateInvokerTest()
{
var methodInfo = typeof(Sample).GetRuntimeMethods()
.Single(x => x.Name == nameof(Sample.ThrowException));
var description = new ConsumerExecutorDescriptor
{
MethodInfo = methodInfo,
ImplTypeInfo = typeof(Sample).GetTypeInfo()
};
var messageContext = new MessageContext();
var context = new ConsumerContext(description, messageContext);
var invoker = consumerInvokerFactory.CreateInvoker(context);
Assert.NotNull(invoker);
}
public DefaultSubscriberExecutor(MethodMatcherCache selector,
IConsumerInvokerFactory consumerInvokerFactory,
ICallbackMessageSender callbackMessageSender,
ILogger <DefaultSubscriberExecutor> logger)
{
_selector = selector;
_callbackMessageSender = callbackMessageSender;
_logger = logger;
Invoker = consumerInvokerFactory.CreateInvoker();
}
public DefaultSubscriberExecutor(
ILogger <DefaultSubscriberExecutor> logger,
CapOptions options,
IConsumerInvokerFactory consumerInvokerFactory,
ICallbackMessageSender callbackMessageSender,
IStateChanger stateChanger,
IStorageConnection connection,
MethodMatcherCache selector)
{
_selector = selector;
_callbackMessageSender = callbackMessageSender;
_options = options;
_stateChanger = stateChanger;
_connection = connection;
_logger = logger;
Invoker = consumerInvokerFactory.CreateInvoker();
}
