class GrpcDynamicService extends NamedLogging
Stand up a gRPC service stub which will direct to an instance set dynamically at runtime if available, or return a UNAVAILBLE status if not set.
Use setInstance and clear to update the backing service instance.
There will be a performance penalty as the method on the backing service is looked up on each call, however this is likely fine for services that are rarely used like admin commands.
Currently intentionally works with typeless io.grpc.ServiceDescriptor instances to allow use with stubs generated by StaticGrpcServices. Validation could be added to ensure full names of services and methods match.
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- new GrpcDynamicService(descriptor: ServiceDescriptor, serviceUnavailableMessage: String, loggerFactory: NamedLoggerFactory)
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