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| # | Location | File | Last Modified |
|---|---|---|---|
| 1 | cbs.zip\cbs\cbs\src\main\java\gov\va\cpss\job | CbssBaseRetryTasklet.java | Thu Nov 9 14:19:48 2017 UTC |
| 2 | cbs.zip\cbs\cbs\src\main\java\gov\va\cpss\job | CbssBaseRetryTasklet.java | Tue Nov 14 12:25:56 2017 UTC |
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| 1 | package go v.va.cpss. job; | |
| 2 | ||
| 3 | import sta tic gov.va .cpss.job. CbssJobPro cessingCon stants.JOB _FAILURE_K EY; | |
| 4 | import sta tic gov.va .cpss.job. CbssJobPro cessingCon stants.JOB _FAILURE_M ESSAGE_KEY ; | |
| 5 | ||
| 6 | import org .apache.lo g4j.Logger ; | |
| 7 | import org .springfra mework.bat ch.core.Ex itStatus; | |
| 8 | import org .springfra mework.bat ch.core.St epContribu tion; | |
| 9 | import org .springfra mework.bat ch.core.St epExecutio n; | |
| 10 | import org .springfra mework.bat ch.core.St epExecutio nListener; | |
| 11 | import org .springfra mework.bat ch.core.sc ope.contex t.ChunkCon text; | |
| 12 | import org .springfra mework.bat ch.core.st ep.item.Ba tchRetryTe mplate; | |
| 13 | import org .springfra mework.bat ch.core.st ep.tasklet .Tasklet; | |
| 14 | import org .springfra mework.bat ch.repeat. RepeatStat us; | |
| 15 | import org .springfra mework.ret ry.Recover yCallback; | |
| 16 | import org .springfra mework.ret ry.RetryCa llback; | |
| 17 | import org .springfra mework.ret ry.RetryCo ntext; | |
| 18 | import org .springfra mework.ret ry.RetryEx ception; | |
| 19 | ||
| 20 | /** | |
| 21 | * Abstrac t base cla ss that im plements l ogic for a tasklet t o retry ex ecution. | |
| 22 | * | |
| 23 | * @author DN S BROWNL | |
| 24 | */ | |
| 25 | public abs tract clas s CbssBase RetryTaskl et impleme nts Taskle t, StepExe cutionList ener { | |
| 26 | ||
| 27 | pr ivate stat ic final S tring RETR Y_FAILURE_ STATUS = " RETRY ATTE MPTS EXHAU STED"; | |
| 28 | pr ivate stat ic final S tring RETR Y_FAILURE_ MESSAGE = "Processin g could no t continue due to re try constr aints"; | |
| 29 | ||
| 30 | pr otected fi nal Logger taskletLo gger; | |
| 31 | ||
| 32 | /* | |
| 33 | * This flag is used t o indicate if the pr ocessing w as success ful and no | |
| 34 | * longer ne eds to ret ry. | |
| 35 | * / | |
| 36 | pr ivate bool ean succes sful = fal se; | |
| 37 | ||
| 38 | /* | |
| 39 | * The retry template that has t he retry a nd backoff policy co nfiguratio ns. | |
| 40 | * / | |
| 41 | pr ivate Batc hRetryTemp late batch RetryTempl ate; | |
| 42 | ||
| 43 | pu blic CbssB aseRetryTa sklet() { | |
| 44 | task letLogger = Logger.g etLogger(t his.getCla ss().getCa nonicalNam e()); | |
| 45 | } | |
| 46 | ||
| 47 | pu blic Batch RetryTempl ate getBat chRetryTem plate() { | |
| 48 | retu rn batchRe tryTemplat e; | |
| 49 | } | |
| 50 | ||
| 51 | pu blic void setBatchRe tryTemplat e(BatchRet ryTemplate batchRetr yTemplate) { | |
| 52 | this .batchRetr yTemplate = batchRet ryTemplate ; | |
| 53 | } | |
| 54 | ||
| 55 | @O verride | |
| 56 | pu blic Repea tStatus ex ecute(Step Contributi on contrib ution, Chu nkContext chunkConte xt) throws Exception { | |
| 57 | ||
| 58 | retu rn batchRe tryTemplat e.execute( new RetryC allback<Re peatStatus , RetryExc eption>() { | |
| 59 | ||
| 60 | public RepeatSta tus doWith Retry(Retr yContext c ontext) th rows Retry Exception { | |
| 61 | ||
| 62 | // Call custom log ic impleme nted by su bclass. | |
| 63 | if (exec uteLogic() ) { | |
| 64 | successful = true; | |
| 65 | return Rep eatStatus. FINISHED; | |
| 66 | } | |
| 67 | ||
| 68 | taskletL ogger.warn ("Tasklet could not continue, attempting retry..." ); | |
| 69 | throw ne w RetryExc eption("Ta sklet coul d not cont inue, atte mpting ret ry..."); | |
| 70 | } | |
| 71 | ||
| 72 | }, n ew Recover yCallback< RepeatStat us>() { | |
| 73 | ||
| 74 | @Overr ide | |
| 75 | public RepeatSta tus recove r(RetryCon text conte xt) throws Exception { | |
| 76 | ||
| 77 | taskletL ogger.erro r("Tasklet could not start and exhausted all retry attempts" ); | |
| 78 | return R epeatStatu s.FINISHED ; | |
| 79 | } | |
| 80 | ||
| 81 | }); | |
| 82 | } | |
| 83 | ||
| 84 | @O verride | |
| 85 | pu blic void beforeStep (StepExecu tion stepE xecution) { | |
| 86 | // I nitialize. | |
| 87 | succ essful = f alse; | |
| 88 | } | |
| 89 | ||
| 90 | @O verride | |
| 91 | pu blic ExitS tatus afte rStep(Step Execution stepExecut ion) { | |
| 92 | ||
| 93 | if ( successful ) { | |
| 94 | return ExitStatu s.COMPLETE D; | |
| 95 | } | |
| 96 | ||
| 97 | step Execution. getJobExec ution().ge tExecution Context(). putString( JOB_FAILUR E_KEY, RET RY_FAILURE _STATUS); | |
| 98 | step Execution. getJobExec ution().ge tExecution Context(). putString( JOB_FAILUR E_MESSAGE_ KEY, RETRY _FAILURE_M ESSAGE); | |
| 99 | retu rn ExitSta tus.FAILED ; | |
| 100 | } | |
| 101 | ||
| 102 | /* * | |
| 103 | * Custom lo gic provid ed by impl ementing c lass to re turn true of tasklet | |
| 104 | * completed successfu lly and no longer ne eds to att empt retry . | |
| 105 | * | |
| 106 | * @return B oolean fla g indicati ng if the logic was executed s uccessfull y. | |
| 107 | * / | |
| 108 | ab stract pro tected boo lean execu teLogic(); | |
| 109 | ||
| 110 | } |
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