^@startuml

^{participant "SO(SOL002_Adapter)"}
^{participant External_VNFM}
^{participant AAI}
^{participant "DCAE/DMaaP"}
^{participant Policy}
^{participant CDS}

^{hnote over AAI : Precondition: VNF is instantiated (e.g. through SOL003 and with external VNFM) and VNFM is registered in ESR and SOL002_Adapter is registered in MSB}

^...

^{"SO(SOL002_Adapter)" -> AAI: 1. GET external VNFMs details}

^{alt Subscribe to LCM Notifications after startup}

^{"SO(SOL002_Adapter)" -> External_VNFM : 2. POST ../vnflcm/v1/subscriptions}
^{External_VNFM -> "SO(SOL002_Adapter)" : 3. 201 Created}
^end

^...
^{alt Receive VnfLcmOperationOccurrenceNotification}
^{External_VNFM -> "SO(SOL002_Adapter)": 4. POST ../notifyEndpoint}
^{"SO(SOL002_Adapter)" -> AAI: 5. GET generic-vnf to make mapping.}
^{"SO(SOL002_Adapter)" -> "SO(SOL002_Adapter)": 6. transform ETSI model to ONAP model and create DMaaP message (or VES event for DCAE) for ONAP}
^{"SO(SOL002_Adapter)" -> "DCAE/DMaaP": 7. POST Notification}
^{Policy -> "DCAE/DMaaP": 8. Consume notifications targeted to Policy}
^{Policy -> Policy: 9. Execute User's policy if exists}
^{Policy -> CDS: 10. POST: Policy action to configure VNF}
^end

^@enduml

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