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Merge pull request #582 from i02coroj/fix-messages-lost

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Update EventBusServiceBus.cs
This commit is contained in:
Miguel Veloso 2018-07-26 20:02:33 +01:00 committed by GitHub
commit c3983b30c7
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 9 deletions
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23
src/BuildingBlocks/EventBus/EventBusServiceBus/EventBusServiceBus.cs
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@ -22,7 +22,7 @@
private readonly string AUTOFAC_SCOPE_NAME = "eshop_event_bus";
private const string INTEGRATION_EVENT_SUFIX = "IntegrationEvent";
public EventBusServiceBus(IServiceBusPersisterConnection serviceBusPersisterConnection,
public EventBusServiceBus(IServiceBusPersisterConnection serviceBusPersisterConnection,
ILogger<EventBusServiceBus> logger, IEventBusSubscriptionsManager subsManager, string subscriptionClientName,
ILifetimeScope autofac)
{
@ -30,7 +30,7 @@
_logger = logger;
_subsManager = subsManager ?? new InMemoryEventBusSubscriptionsManager();
_subscriptionClient = new SubscriptionClient(serviceBusPersisterConnection.ServiceBusConnectionStringBuilder,
_subscriptionClient = new SubscriptionClient(serviceBusPersisterConnection.ServiceBusConnectionStringBuilder,
subscriptionClientName);
_autofac = autofac;
@ -68,7 +68,7 @@
where T : IntegrationEvent
where TH : IIntegrationEventHandler<T>
{
var eventName = typeof(T).Name.Replace(INTEGRATION_EVENT_SUFIX, "");
var eventName = typeof(T).Name.Replace(INTEGRATION_EVENT_SUFIX, "");
var containsKey = _subsManager.HasSubscriptionsForEvent<T>();
if (!containsKey)
@ -81,7 +81,7 @@
Name = eventName
}).GetAwaiter().GetResult();
}
catch(ServiceBusException)
catch (ServiceBusException)
{
_logger.LogInformation($"The messaging entity {eventName} already exists.");
}
@ -129,10 +129,12 @@
{
var eventName = $"{message.Label}{INTEGRATION_EVENT_SUFIX}";
var messageData = Encoding.UTF8.GetString(message.Body);
await ProcessEvent(eventName, messageData);
// Complete the message so that it is not received again.
await _subscriptionClient.CompleteAsync(message.SystemProperties.LockToken);
if (await ProcessEvent(eventName, messageData))
{
await _subscriptionClient.CompleteAsync(message.SystemProperties.LockToken);
}
},
new MessageHandlerOptions(ExceptionReceivedHandler) { MaxConcurrentCalls = 10, AutoComplete = false });
}
@ -148,8 +150,9 @@
return Task.CompletedTask;
}
private async Task ProcessEvent(string eventName, string message)
private async Task<bool> ProcessEvent(string eventName, string message)
{
var processed = false;
if (_subsManager.HasSubscriptionsForEvent(eventName))
{
using (var scope = _autofac.BeginLifetimeScope(AUTOFAC_SCOPE_NAME))
@ -173,7 +176,9 @@
}
}
}
processed = true;
}
return processed;
}
private void RemoveDefaultRule()
@ -191,4 +196,4 @@
}
}
}
}
}