Sequence_instantiateCmpRaComponent.uml

@startuml

database "**Configuration Interface**" as config


participant "Downstream Interface" as Downstream 
participant "RA Component" as RA
participant "Upstream Interface" as Upstream

activate Downstream
config -> RA : instantiateCmpRaComponent()

Downstream -> RA : processRequest(**byte[]** request)

activate RA
RA -> Upstream : upstreamExchange (**byte[]** request, String certificateProfile)
activate Upstream
alt synchronous
Upstream --> RA : **byte[]** upstreamExchange (response)
RA --> Downstream : **byte[]** processRequest (response)

else asynchronous: delayed delivery
Upstream --> RA : **null** upstreamExchange (response absent)
deactivate Upstream
RA --> Downstream : **byte[]** processRequest (response with waiting indication)
loop
Downstream -> RA :  processRequest(**byte[]** pollRequest)
RA --> Downstream : **byte[]** processRequest (pollResponse) 

break
activate Upstream
Upstream --> RA : gotResponseAtUpstream(**byte[]** response)
deactivate Upstream
end
end
Downstream -> RA :  processRequest(**byte[]** pollRequest)
RA --> Downstream : **byte[]** processRequest (response)
end
deactivate RA

@enduml