Spring Cloud Stream. Azure EventHubs multiple input channels - spring

Question

I am having problem customizing input channel name when using spring cloud stream azure event hub binder
spring-cloud-azure-eventhubs-stream-binder/1.2.6
When I use Sink interface provided by spring cloud like this:
#EnableBinding(Sink::class)
internal class SomeListener{
#StreamListener(Sink.INPUT)
fun listener(
message: GenericMessage<MyMessage>
) {
logger.trace("Got message")
}
}
with application properties like this:
spring:
cloud:
azure:
eventhub:
connection-string: ...
checkpoint-access-key: ...
checkpoint-storage-account: ...
stream:
eventhub:
bindings:
input:
consumer:
checkpoint-mode: BATCH
bindings:
input:
destination: test
group: $Default
binder: eventhub
I can receive messages without any problems.
But when I want to use custom channel like this:
internal interface CustomSink {
#Output(INPUT)
fun input(): SubscribableChannel
companion object {
const val INPUT = "custom-input"
}
}
#EnableBinding(CustomSink::class)
internal class SomeEventSinkListener{
#StreamListener(CustomSink.INPUT)
fun listener(
message: GenericMessage<MyMessage>
) {
logger.trace("Got message")
}
}
and properties like this:
spring:
cloud:
azure:
eventhub:
connection-string: <secret>
checkpoint-access-key: <secret>
checkpoint-storage-account: <secret>
stream:
eventhub:
bindings:
custom-input:
consumer:
checkpoint-mode: BATCH
bindings:
custom-input:
destination: test
group: $Default
binder: eventhub
I did not receive any messages.
The only think changed is channel name. I don't know what is wrong. I can customize output channel name without problem but input channels work only if I use Sink interface Binding. I would like to listen on two different destinations in future that's why I need to custom input channels.
I appreciate any help. Thanks.