|
| 1 | +@startuml |
| 2 | +'https://plantuml.com/sequence-diagram |
| 3 | +skinparam ParticipantPadding 30 |
| 4 | +skinparam BoxPadding 10 |
| 5 | +skinparam backgroundColor #EEEBDC |
| 6 | +skinparam handwritten true |
| 7 | + |
| 8 | +skinparam sequence { |
| 9 | + LifeLineBackgroundColor #ddd7ba |
| 10 | + |
| 11 | + ParticipantBorderColor DeepSkyBlue |
| 12 | + ParticipantBackgroundColor DodgerBlue |
| 13 | + ParticipantFontName Impact |
| 14 | + ParticipantFontSize 17 |
| 15 | + ParticipantFontColor #A9DCDF |
| 16 | +} |
| 17 | + |
| 18 | +actor dev |
| 19 | +box "Vert.x event-loop threads" #LightYellow |
| 20 | +participant "Scheduler.x" as scheduler |
| 21 | +participant "Vertx Timer" as timer |
| 22 | +end box |
| 23 | + |
| 24 | +box "Scheduler.x threads" #dce8ee |
| 25 | +collections "Worker threads" as worker |
| 26 | +collections "Monitor threads" as monitor |
| 27 | +end box |
| 28 | +participant "External system" as extSys |
| 29 | +extSys++ |
| 30 | + |
| 31 | +== Initialization == |
| 32 | +dev -> scheduler++: Build an instance \nwith trigger and job |
| 33 | +dev -> scheduler: Start scheduler |
| 34 | + |
| 35 | +scheduler -> timer++: register timer |
| 36 | +alt #Lightblue trigger is scheduled |
| 37 | + timer --> scheduler++#466ede: success |
| 38 | + scheduler -> monitor++#466ede: notify trigger \n**is scheduled** event |
| 39 | + monitor -> extSys--: publish **scheduled** result |
| 40 | + scheduler-- |
| 41 | +else #ffe9f0 trigger is unable to scheduled |
| 42 | + timer --> scheduler++#f00: error |
| 43 | + scheduler -> monitor++#f00: notify trigger \n**is unscheduled** event |
| 44 | + monitor -> extSys--: publish **unscheduled** result |
| 45 | + scheduler-- |
| 46 | +end alt |
| 47 | + |
| 48 | +||10|| |
| 49 | +== Scheduling Loop == |
| 50 | + |
| 51 | +loop |
| 52 | +timer -> scheduler++#fbb: tick timing event |
| 53 | +scheduler -> worker++: send trigger \nevaluation event |
| 54 | +||5|| |
| 55 | +...evaluating trigger condition... |
| 56 | + alt #Lightblue trigger is READY |
| 57 | + worker --> scheduler++#5D935D: accepted |
| 58 | + worker++#5D935D |
| 59 | + worker-- |
| 60 | + scheduler -> worker++#5D935D: send execution event |
| 61 | + ||5|| |
| 62 | + ...executing the job... |
| 63 | + worker --> scheduler--: returns job result |
| 64 | + scheduler -> monitor++#5D935D: notify trigger \n**round is finished** event |
| 65 | + monitor -> extSys--: publish **job** result |
| 66 | + scheduler-- |
| 67 | + else #ffe9f0 trigger is unable to run |
| 68 | + worker --> scheduler ++#gold: refused |
| 69 | + worker++#gold |
| 70 | + worker-- |
| 71 | + scheduler -> monitor++#gold: notify trigger \n**tick is misfired** event |
| 72 | + monitor -> extSys--: publish **misfire** result |
| 73 | + scheduler-- |
| 74 | + end alt |
| 75 | + worker-- |
| 76 | + scheduler-- |
| 77 | +||5|| |
| 78 | +end group |
| 79 | + |
| 80 | +||10|| |
| 81 | +== Shutdown == |
| 82 | +dev -> scheduler++#466ede: Cancel scheduler |
| 83 | +scheduler -> timer++#466ede: unregister timer |
| 84 | +return |
| 85 | +timer-- |
| 86 | +scheduler -> monitor++#466ede: notify trigger \n**is completed** event |
| 87 | +monitor -> extSys--: publish **complete** result |
| 88 | +scheduler-- |
| 89 | + |
| 90 | +||5|| |
| 91 | +scheduler-- |
| 92 | +extSys-- |
| 93 | +@enduml |
0 commit comments