@startuml
participant SO
participant SOL005_Adapter
participant SOL005_NBI
participant NS_LCMGR
participant Resource_Mgr
participant Catalog_DB_Adapter
participant ETSI_Catalog_Mgr
participant Inventory_DB_Adapter
participant AAI
participant SOL003_Adapter
participant VNFM
participant VIM

autonumber 

group Create NS
	SO -> SOL005_Adapter : Create NS
    SOL005_Adapter -> SOL005_NBI : Create NS
    SOL005_NBI -> NS_LCMGR : Create NS
    NS_LCMGR -> Resource_Mgr : Create NS record
    Resource_Mgr -> Inventory_DB_Adapter : Create NS record
    Inventory_DB_Adapter -> AAI : Create NS record
    AAI --> AAI : Create NS record
    AAI -> Inventory_DB_Adapter : Response for Create NS record
    Inventory_DB_Adapter -> Resource_Mgr: Response for Create NS record
    Resource_Mgr -> NS_LCMGR : Response for Create NS record
    NS_LCMGR -> SOL005_Adapter : Response with NS Instance Id
    SOL005_Adapter -> SO : Response with NsInstance (including NS Instance Id)
    NS_LCMGR -> SOL005_Adapter : Send NsIdentifierCreationNotification
    SOL005_Adapter -> NS_LCMGR : Send NsIdentifierCreationNotification
end
group Instantiate NS
    NS_LCMGR -> Catalog_DB_Adapter : Read NS descriptor
    Catalog_DB_Adapter -> ETSI_Catalog_Mgr : Read NS descriptor
    ETSI_Catalog_Mgr -> Catalog_DB_Adapter : Return NS descriptor
    Catalog_DB_Adapter -> NS_LCMGR : Return NS descriptor
    NS_LCMGR --> NS_LCMGR : Parse & Decompose NS descriptor
    NS_LCMGR --> NS_LCMGR : Instantiate NS
    NS_LCMGR --> NS_LCMGR : Instantiate VLs between VNFs
    NS_LCMGR -> Resource_Mgr : Create Network
    Resource_Mgr -> VIM : Create Network
    VIM -> Resource_Mgr : Response for Create Network
    Resource_Mgr -> NS_LCMGR : Response for Create Network
    NS_LCMGR -> Resource_Mgr : Create VL record
    Resource_Mgr -> Inventory_DB_Adapter : Create VL record
    Inventory_DB_Adapter -> AAI : Create VL record
    AAI --> AAI : Create VL record
    AAI -> Inventory_DB_Adapter : Response for Create VL record
    Inventory_DB_Adapter -> Resource_Mgr : Response for Create VL record
    Resource_Mgr -> NS_LCMGR : Response for Create VL record
    NS_LCMGR -> Resource_Mgr : Request Homing Information for Network Service
    Resource_Mgr -> OOF : Requests Homing Information for Network Service
    OOF -> Resource_Mgr : Response with Homing Information for Network Service
    Resource_Mgr --> Resource_Mgr : Persist Homing Information for Network Service
loop Go through each VNF    
    NS_LCMGR -> SOL003_Adapter : Request for Instantiate VNF
    SOL003_Adapter -> VNFM : Request for Instantiate VNF
    VNFM -> SOL003_Adapter : Request Grant VNF resource
    SOL003_Adapter -> NS_LCMGR : Request Grant VNF resource
    NS_LCMGR -> Resource_Mgr : Request Homing Information 
    Resource_Mgr -> NS_LCMGR : Return with Homing Information for the VNF
    NS_LCMGR --> NS_LCMGR : Make a Grant decision
    NS_LCMGR -> SOL003_Adapter : Return with a Grant decision
    SOL003_Adapter -> VNF: Return with a Grant decision
    VNF --> VNF : Instantiate VNF
    VNF -> SOL003_Adapter : Notify the changes of VNF/VDUs/CPs
    SOL003_Adapter -> NS_LCMGR : Notify the changes of VNF/VUD/CPs
end
end    


@enduml