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add plantuml document for a paging optimizations using a cache
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| @startuml | ||
| 'https://plantuml.com/sequence-diagram | ||
|
|
||
| actor Client as "Client" | ||
| control ReverseProxy as "Server Cache" | ||
| group Session [Client 1] | ||
| Client -> ReverseProxy: /catalog/timeseries/pages?office=SWT | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: no | ||
| ReverseProxy -> CDA: /catalog/timeseries/pages?office=SWT | ||
| CDA -> Database: keyset pagination query | ||
| CDA -> ReverseProxy: cache | ||
| CDA -> Client: \n \ | ||
| /catalog/timeseries?office=SWT&tsid_start=<1>&tsid_end=<2>\n \ | ||
| /catalog/timeseries?office=SWT&tsid_start=<3>&tsid_end=<4>\n \ | ||
| /catalog/timeseries?office=SWT&tsid_start=<5>&tsid_end=<6>\n | ||
| par thread 1 | ||
| Client -> ReverseProxy: /catalog/timeseries?office=SWT&tsid_start=<1>&tsid_end=<2> | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: no | ||
| ReverseProxy -> CDA: /catalog/timeseries?office=SWT&tsid_start=<1>&tsid_end=<2> | ||
| CDA -> Database: query time series for SWT starting with <1> and ending with <2> | ||
| CDA -> Client: time series ids | ||
| else thread 2 | ||
| Client -> ReverseProxy: /catalog/timeseries?office=SWT&tsid_start=<3>&tsid_end=<4> | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: no | ||
| ReverseProxy -> CDA: /catalog/timeseries?office=SWT&tsid_start=<3>&tsid_end=<4> | ||
| CDA -> Database: query time series for SWT starting with <3> and ending with <4> | ||
| CDA -> Client: time series ids | ||
| else thread 3 | ||
| Client -> ReverseProxy: /catalog/timeseries?office=SWT&tsid_start=<5>&tsid_end=<6> | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: no | ||
| ReverseProxy -> CDA: /catalog/timeseries?office=SWT&tsid_start=<5>&tsid_end=<6> | ||
| CDA -> Database: query time series for SWT starting with <5> and ending with <6> | ||
| CDA -> Client: time series ids | ||
| end | ||
| else Session 2 | ||
| Client -> ReverseProxy: /catalog/timeseries/pages?office=SWT | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: yes | ||
| ReverseProxy -> Client: \n \ | ||
| /catalog/timeseries?office=SWT&tsid_start=<1>&tsid_end=<2>\n \ | ||
| /catalog/timeseries?office=SWT&tsid_start=<3>&tsid_end=<4>\n \ | ||
| /catalog/timeseries?office=SWT&tsid_start=<5>&tsid_end=<6>\n | ||
| par thread 1 | ||
| Client -> ReverseProxy: /catalog/timeseries?office=SWT&tsid_start=<1>&tsid_end=<2> | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: yes | ||
| ReverseProxy -> Client: time series ids | ||
| else thread 2 | ||
| Client -> ReverseProxy: /catalog/timeseries?office=SWT&tsid_start=<3>&tsid_end=<4> | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: yes | ||
| ReverseProxy -> Client: time series ids | ||
| else thread 3 | ||
| Client -> ReverseProxy: /catalog/timeseries?office=SWT&tsid_start=<5>&tsid_end=<6> | ||
| ReverseProxy -> CDA: cache current? | ||
| CDA -> ReverseProxy: yes | ||
| ReverseProxy -> Client: time series ids | ||
| end | ||
| end | ||
| @enduml |