CODEWITHSUNDEEP
corda
Andranik
Andranik

Reputation: 2849

Corda check if node is in drain mode inside Service

Suppose I have a Corda service:

@CordaService
class MyService(serviceHub: AppServiceHub) : SingletonSerializeAsToken()

Is there a way to check if my node is in Drain mode inside this service? I tried to find this information inside AppServiceHub instance, but could not. I found out that there is also a class ServiceHubInternal which has nodeProperties.flowsDrainingMode.isEnabled() exactly what I need. But I don't know how can I get an instance of ServiceHubInternal inside Corda Service.

Even if I try a suggested solution to add corda-node as a dependency and try to cast ServiceHubInternal sHI = (ServiceHubInternal) getServiceHub(); I get ClassCastException - net.corda.node.internal.AbstractNode$AppServiceHubImpl cannot be cast to net.corda.node.services.api.ServiceHubInternal

UPDATE

Well interestingly, when I do the same thing inside the Flow itself it works, so the serviceHub inside FlowLogic can be casted to ServiceHubInternal but the one inside CordaService cannot. is it the way it should work? Are there any workarounds to get the ServiceHubInternal instance inside CordaService ?

Can anyone help me with this please?

Upvotes: 0

Views: 145

Answers (1)

Ashutosh Meher
Ashutosh Meher

Reputation: 1831

You need the corda-node dependency to access ServiceHubInternal.

Add below to you build.gradle file in dependencies section:

cordaCompile "$corda_release_group:corda-node:$corda_release_version"

You should now be able to access ServiceHubInternal and check for draining mode as below:

 ServiceHubInternal sHI = (ServiceHubInternal) getServiceHub();
 sHI.getNodeProperties().getFlowsDrainingMode().isEnabled();

Upvotes: 2

Related Questions