Disable EventHandler at startup

Axon Framework
1

Hi all,

is it possible to configure the EventHandler to be disabled? If not, what would be the cleanest solution to directly disable the EventHandler in an SpringBoot - Kotlin setup?

I tried to use the @PostConstruct Annotation but it disables the processors before axon configuration starts them.

    @Value("\${axon.eventhandling.processors.tracingHeadersProjection.enabled}")
    var tracingHeadersEnabled: Boolean = false

    @PostConstruct
    fun initialShutdownParallelizedProcessingGroup() {
        logger.info { "PPG active: $tracingHeadersEnabled" }
        if(!tracingHeadersEnabled){
            eventProcessingConfiguration.eventProcessor(
                TracingHeadersProjectionEventHandler.PROCESSING_GROUP,
                StreamingEventProcessor::class.java
            )?.ifPresent { streamingProcessor: StreamingEventProcessor ->

                streamingProcessor.shutDown()
            }
        }
    }

Environment variables enabled are fetched from axon.yaml:

axon:
  eventhandling:
    processors:
      allEventsProjection:
        batch-size: ${ALL_EVENTS_PROJECTION_BATCH_SIZE:1}
        mode: pooled
        thread-count: ${ALL_EVENTS_PROJECTION_THREAD_COUNT:8}
        initial-segment-count: ${ALL_EVENTS_PROJECTION_INITIAL_SEGMENT_COUNT:32}
        sequencing-policy: traceEventsPropertyTraceIdSequencingPolicy
        enabled: ${ALL_EVENTS_PROJECTION_ENABLED:false}

BR
lemon