public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ParameterInfo parameter = context.Parameter;
EventHubTriggerAttribute attribute = parameter.GetCustomAttribute <EventHubTriggerAttribute>(inherit: false);
if (attribute == null)
{
return(Task.FromResult <ITriggerBinding>(null));
}
Func <ListenerFactoryContext, bool, Task <IListener> > createListener =
(factoryContext, singleDispatch) =>
{
var options = _options.Value;
if (singleDispatch && !options.IsSingleDispatchEnabled)
{
throw new NotSupportedException("Binding to individual events is not supported. Please use batch processing by binding to an array instead.");
}
var checkpointStore = new BlobsCheckpointStore(
_clientFactory.GetCheckpointStoreClient(),
options.EventProcessorOptions.RetryOptions.ToRetryPolicy(),
factoryContext.Descriptor.Id,
_logger);
IListener listener = new EventHubListener(
factoryContext.Descriptor.Id,
factoryContext.Executor,
_clientFactory.GetEventProcessorHost(attribute.EventHubName, attribute.Connection, attribute.ConsumerGroup),
singleDispatch,
_clientFactory.GetEventHubConsumerClient(attribute.EventHubName, attribute.Connection, attribute.ConsumerGroup),
checkpointStore,
options,
_logger);
return(Task.FromResult(listener));
};
#pragma warning disable 618
ITriggerBinding binding = BindingFactory.GetTriggerBinding(new EventHubTriggerBindingStrategy(), parameter, _converterManager, createListener);
#pragma warning restore 618
return(Task.FromResult(binding));
}
public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ParameterInfo parameter = context.Parameter;
EventHubTriggerAttribute attribute = parameter.GetCustomAttribute <EventHubTriggerAttribute>(inherit: false);
if (attribute == null)
{
return(Task.FromResult <ITriggerBinding>(null));
}
Func <ListenerFactoryContext, bool, Task <IListener> > createListener =
(factoryContext, singleDispatch) =>
{
var options = _options.Value;
var checkpointStore = new BlobCheckpointStoreInternal(
_clientFactory.GetCheckpointStoreClient(),
factoryContext.Descriptor.Id,
_loggerFactory.CreateLogger <BlobCheckpointStoreInternal>());
IListener listener = new EventHubListener(
factoryContext.Descriptor.Id,
factoryContext.Executor,
_clientFactory.GetEventProcessorHost(attribute.EventHubName, attribute.Connection, attribute.ConsumerGroup, singleDispatch),
singleDispatch,
_clientFactory.GetEventHubConsumerClient(attribute.EventHubName, attribute.Connection, attribute.ConsumerGroup),
checkpointStore,
options,
_loggerFactory);
return(Task.FromResult(listener));
};
#pragma warning disable 618
ITriggerBinding binding = BindingFactory.GetTriggerBinding(new EventHubTriggerBindingStrategy(), parameter, _converterManager, createListener);
#pragma warning restore 618
ITriggerBinding eventHubTriggerBindingWrapper = new EventHubTriggerBindingWrapper(binding);
return(Task.FromResult(eventHubTriggerBindingWrapper));
}