96 lines
5.2 KiB
Go
96 lines
5.2 KiB
Go
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@startuml seq_schedule
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title Flux SCHEDULE — Peer A ↔ Peer B via oc-discovery
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skinparam sequenceMessageAlign center
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skinparam sequence {
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ArrowColor #333333
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LifeLineBorderColor #888888
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GroupBorderColor #777777
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GroupBackgroundColor #FAFAFA
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NoteBackgroundColor #FFFDE7
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NoteBorderColor #CCAA00
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BoxBorderColor #555555
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}
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skinparam ParticipantBackgroundColor #FFFFFF
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participant "Client" as Client
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box "Peer A" #EAF3FB
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participant "oc-scheduler A" as SA
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participant "oc-discovery A" as DA
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end box
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box "Peer B" #EAF9EE
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participant "oc-discovery B" as DB
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participant "oc-scheduler B" as SB
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end box
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' ══════════════════════════════════════════════════════════════════
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Client -> SA : POST /oc/:wfID
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' ──────────────────────────────────────────────────────────────────
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group ① Planification — synchrone (GetBuyAndBook)
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SA -> SA : workflow.LoadOne(wfID)\nwf.Planify(start, end, instances, …)\nexec.Buy() → purchases [ DestPeerID = B ]\nexec.Book() → bookings [ DestPeerID = B ]\n⇒ WorkflowExecution {\n BookingsState: { booking_id: false }\n PurchasesState: { purchase_id: false }\n }
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end
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' ──────────────────────────────────────────────────────────────────
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group ② Propagation vers Peer B — goroutines (errCh attend l'envoi NATS, pas la réception par B)
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SA -> DA : **NATS PUB** · CREATE_RESOURCE\nPURCHASE_RESOURCE { DestPeerID=B, IsDraft=true }
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note right of DA : oc-discovery A est le\nrécepteur systématique\ndes émissions NATS de SA
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DA --> DB : **STREAM** · PropalgationMessage\n{ datatype: PURCHASE_RESOURCE }
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DB -> SB : **NATS SUB** · CREATE_RESOURCE PURCHASE_RESOURCE
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SA -> DA : **NATS PUB** · CREATE_RESOURCE\nBOOKING { DestPeerID=B, IsDraft=true }
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DA --> DB : **STREAM** · PropalgationMessage\n{ datatype: BOOKING }
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DB -> SB : **NATS SUB** · CREATE_RESOURCE BOOKING
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end
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' ──────────────────────────────────────────────────────────────────
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group ③ Peer B traite — async (ListenNATS goroutine de SB)
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SB -> SB : StoreOne(purchase, IsDraft=true)\nAfterFunc(10 min → draftTimeout)
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SB -> DB : **NATS PUB** · PROPALGATION_EVENT\nConsiders { DataType:PURCHASE_RESOURCE,\n id=purchase_id, execution_id }
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note right of DB : SB émet sur son NATS local\nDB (oc-discovery B) reçoit
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DB --> DA : **STREAM** · PropalgationMessage\n{ action: Considers, DataType: PURCHASE_RESOURCE }
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DA -> SA : **NATS SUB** · PROPALGATION_EVENT\n[ FromApp = "oc-discovery" ]
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SA -> SA : updateExecutionState()\nPurchasesState[ purchase_id ] = true
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SB -> SB : PlannerCache[self].Check(slot) ✓\nStoreOne(booking, IsDraft=true)\nAfterFunc(10 min → draftTimeout)\nrefreshSelfPlanner()
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SB -> DB : **NATS PUB** · PROPALGATION_EVENT\nPB_PLANNER { peer_id, schedule, capacities }
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DB --> DA : **STREAM** · PropalgationMessage\n{ action: PB_PLANNER }
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DA -> SA : **NATS SUB** · PROPALGATION_EVENT\n[ FromApp = "oc-discovery" ]
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SA -> SA : storePlanner(PeerB.PeerID, p)
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SB -> DB : **NATS PUB** · PROPALGATION_EVENT\nConsiders { DataType:BOOKING,\n id=booking_id, execution_id }
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DB --> DA : **STREAM** · PropalgationMessage\n{ action: Considers, DataType: BOOKING }
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DA -> SA : **NATS SUB** · PROPALGATION_EVENT\n[ FromApp = "oc-discovery" ]
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SA -> SA : updateExecutionState()\nBookingsState[ booking_id ] = true\n→ tous true → State = SCHEDULED (DB)
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end
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' ──────────────────────────────────────────────────────────────────
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group ④ Schedules() finalise — synchrone (concurrent avec ③)
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SA -> SA : GenerateOrder(purchases, bookings)\nexec.PurgeDraft()\nexec.StoreDraftDefault() → State=SCHEDULED, IsDraft=false\nGenericStoreOne(exec)
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SA -> DA : **NATS PUB** · PROPALGATION_EVENT [goroutine]\nConsiders { DataType:WORKFLOW_EXECUTION,\n execution, peer_ids:[ PeerB ] }
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note right of DA : oc-discovery A reçoit\net STREAM vers tous les\npairs listés dans peer_ids
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DA --> DB : **STREAM** · PropalgationMessage\n{ action: Considers, DataType: WORKFLOW_EXECUTION }
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DB -> SB : **NATS SUB** · PROPALGATION_EVENT\n[ FromApp = "oc-discovery" ]
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SB -> SB : confirmExecutionDrafts()\nconfirmResource(booking_id)\n → Booking.IsDraft=false, State=SCHEDULED\nconfirmResource(purchase_id)\n → Purchase.IsDraft=false
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SA -> Client : **{WorkflowSchedule, Workflow, Executions}**
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end
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note over SA, SB
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③ et ④ sont concurrents.
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En pratique : GenerateOrder + écritures DB côté A
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laissent le temps à B de recevoir et stocker ses drafts
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avant que A émette le Considers/WORKFLOW_EXECUTION.
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end note
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@enduml
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