kea/doc/design/datasrc/auth-local.txt

@startuml

participant auth as "b10-auth"
[-> auth: new/initial config\n(datasrc cfg)
activate auth

participant list as "Configurable\nClientList"
create list
auth -> list: <<construct>>

auth -> list: configure(cfg)
activate list

create CacheConfig
list -> CacheConfig: <<construct>> (cfg)

participant zt_segment as "ZoneTable\nSegment\n(Local)"
create zt_segment
list -> zt_segment: <<construct>>
activate zt_segment

create ZoneTable
zt_segment -> ZoneTable: <<construct>>

deactivate zt_segment

list -> zt_segment: isWritable()
activate zt_segment
note over zt_segment: Local segments are\nalways writable
zt_segment --> list: true
deactivate zt_segment

loop for each zone in CacheConfig
list -> CacheConfig: getLoadAction()
activate CacheConfig

create LoadAction
CacheConfig -> LoadAction: <<construct>>

participant LoadAction.2

CacheConfig --> list : LoadAction

deactivate CacheConfig

create ZoneWriter
list -> ZoneWriter: <<construct>> (load_action)

participant ZoneWriter.2

list -> ZoneWriter: load()
activate ZoneWriter
ZoneWriter -> LoadAction: (funcall)
activate LoadAction

create ZoneData
LoadAction -> ZoneData: <<construct>> via helpers

participant ZoneData.2

LoadAction --> ZoneWriter: ZoneData
deactivate LoadAction
deactivate ZoneWriter

list -> ZoneWriter: install()
activate ZoneWriter

ZoneWriter -> ZoneTable: addZone(ZoneData)
activate ZoneTable
ZoneTable --> ZoneWriter: NULL (no old data)
deactivate ZoneTable

deactivate ZoneWriter

end

deactivate list
deactivate auth

...

[-> auth: reload\n(zonename)
activate auth

auth -> list: getCachedZoneWriter\n(zone_name)
activate list

list -> CacheConfig: getLoadAction()
activate CacheConfig

create LoadAction.2
CacheConfig -> LoadAction.2: <<construct>>

CacheConfig --> list : LoadAction.2

deactivate CacheConfig

create ZoneWriter.2
list -> ZoneWriter.2: <<construct>> (load_action)

list --> auth: ZoneWriter.2

deactivate list


auth -> ZoneWriter.2: load()
activate ZoneWriter.2
ZoneWriter.2 -> LoadAction.2: (funcall)
activate LoadAction.2

create ZoneData.2
LoadAction.2 -> ZoneData.2: <<construct>> via helpers

LoadAction.2 --> ZoneWriter.2: ZoneData.2
deactivate LoadAction.2
deactivate ZoneWriter.2

auth -> ZoneWriter.2: install()
activate ZoneWriter.2

ZoneWriter.2 -> ZoneTable: addZone(ZoneData.2)
activate ZoneTable
ZoneTable --> ZoneWriter.2: ZoneData (old data)
deactivate ZoneTable

deactivate ZoneWriter.2

auth -> ZoneWriter.2: cleanup()
activate ZoneWriter.2

ZoneWriter.2 -> ZoneData: <<destroy>>
destroy ZoneData
deactivate ZoneWriter.2

deactivate auth

@enduml