Hi All,
I am new to NiFi and I'm stuck with couple issues:
1. Unable to get hold of ControllerService from Processor’s init method.
I wanted to pre-set some dependencies during init phase instead of
querying them repeatedly in onTrigger method.
I am getting null for service and not sure what I have to pass for
'serviceIdentifier’ . I couldn't find documentation or examples on how to give
Identifier to a service.
final VertxServiceInterface vertxService = (VertxServiceInterface)
context.getControllerServiceLookup().getControllerService("VertxService”)
https://github.com/xmlking/nifi-websocket/blob/master/src/main/java/com/crossbusiness/nifi/processors/PutEventBus.java#L55
<https://github.com/xmlking/nifi-websocket/blob/master/src/main/java/com/crossbusiness/nifi/processors/PutEventBus.java#L55>
2. for my usecase I get data published to a topic from EventBus with following
code.
EventBus eb = vertx.eventBus();
eb.consumer("news.uk.sport", message -> {
System.out.println("I have received a message: " +
message.body());
});
I am working on a date ingest processor (push based) that needs to
listen for new messages on a topic and send to flow as FlowFile.
In my case data source is EvenBus that expose emit messages via
callback API.
I am looking for ideas on how to call Processor’s onTrigger method when
the above callback is evoked.
Should I have to use my own intermediate queue and poll it in onTrigger
method?
is there a better way to trigger the onTrigger method programmatically
?
Thanks
Sumo
