| @startuml |
| title Request Processing Overview |
| hide footbox |
| autonumber |
| |
| actor "REST Client" as C |
| box "Gateway" |
| participant "Embedded\nJetty" as GW |
| participant "Map\n<URL,Chain<Filter>>" as CM |
| participant "Chain\n<Filter>" as FC |
| end box |
| participant "Hadoop\nService" as S |
| |
| C -> GW: GET( URL ) |
| activate GW |
| GW -> CM: Chain<Filter> = lookup( URL ) |
| activate CM |
| deactivate CM |
| GW -> FC: doFilter |
| activate FC |
| |
| FC -> FC: doFilter* |
| activate FC |
| FC -> S: GET( URL' ) |
| activate S |
| FC <-- S: JSON |
| deactivate S |
| FC <-- FC: JSON |
| deactivate FC |
| |
| GW <-- FC: JSON |
| deactivate FC |
| C <-- GW: JSON |
| deactivate GW |
| |
| @enduml |
