package Ġno . nav . person br uk er . dit tn av . var sel best iller . op pg ave Ċ Ċ import Ġno . nav . br uk er not ifik as jon . schemas . internal . N ok kel Intern Ċ import Ġno . nav . br uk er not ifik as jon . schemas . internal . Opp g ave Intern Ċ import Ġno . nav . dok not ifik as jon . schemas . D ok not ifik as jon Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . common . Event Batch Processor Service Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . common . database . List Persist ActionResult Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . common . exceptions . Un transform able Record Exception Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . config . Event type Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . dok not ifik as jon . D ok not ifik as jon Creator Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . dok not ifik as jon . D ok not ifik as jon Producer Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . metrics . Event Metrics Session Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . metrics . Metrics Collector Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . metrics . Producer Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . var sel best illing . Var sel best illing Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . var sel best illing . Var sel best illing Repository Ċ import Ġno . nav . person br uk er . dit tn av . var sel best iller . var sel best illing . Var sel best illing Transformer Ċ import Ġorg . apache . kafka . clients . consumer . Consumer Record Ċ import Ġorg . apache . kafka . clients . consumer . Consumer Records Ċ import Ġorg . slf 4 j . LoggerFactory Ċ Ċ class ĠO pp g ave Event Service ( ĊĠĠĠĠĠĠĠ Ġprivate Ġval Ġdok not ifik as jon Producer : ĠD ok not ifik as jon Producer , ĊĠĠĠĠĠĠĠ Ġprivate Ġval Ġvar sel best illing Repository : ĠVar sel best illing Repository , ĊĠĠĠĠĠĠĠ Ġprivate Ġval Ġmetrics Collector : ĠMetrics Collector Ċ ) Ġ: ĠEvent Batch Processor Service < N ok kel Intern , ĠO pp g ave Intern > Ġ{ ĊĊĠĠĠ Ġprivate Ġval Ġlog Ġ= ĠLoggerFactory . getLogger ( Opp g ave Event Service :: class . java ) ĊĊĠĠĠ Ġoverride Ġsuspend Ġfun Ġprocess Events ( events : ĠConsumer Records < N ok kel Intern , ĠO pp g ave Intern >) Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġsuccessfully Trans formed Events Ġ= Ġmutable Map Of < String , ĠD ok not ifik as jon >() ĊĠĠĠĠĠĠĠ Ġval Ġproblematic Events Ġ= Ġmutable ListOf < Consumer Record < N ok kel Intern , ĠO pp g ave Intern >>() ĊĠĠĠĠĠĠĠ Ġval Ġvar sel best illing er Ġ= Ġmutable ListOf < Var sel best illing >() ĊĊĠĠĠĠĠĠĠ Ġmetrics Collector . record Metrics ( eventType Ġ= ĠEvent type . OP PG AVE _ INTER N ) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġevents . forEach Ġ{ Ġevent Ġ-> ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġtry Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġopp g ave Key Ġ= Ġevent . key () ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġopp g ave Event Ġ= Ġevent . value () ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġproducer Ġ= ĠProducer ( event . namespace , Ġevent . app nav n ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġcount All Events From Kafka For Producer ( producer ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġif Ġ( op pg ave Event . get Ek st ern Var sl ing ()) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġdok not ifik as jon Key Ġ= ĠD ok not ifik as jon Creator . create D ok not ifik as jon Key ( op pg ave Key , ĠEvent type . OP PG AVE _ INTER N ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġdok not ifik as jon Ġ= ĠD ok not ifik as jon Creator . create D ok not ifik as jon From Opp g ave ( op pg ave Key , Ġopp g ave Event ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġsuccessfully Trans formed Events [ dok not ifik as jon Key ] Ġ= Ġdok not ifik as jon ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġvar sel best illing er . add ( Var sel best illing Transformer . from Opp g ave ( op pg ave Key , Ġopp g ave Event , Ġdok not ifik as jon )) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġcount Successful Ek st ern Var sl ing For Producer ( producer ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġ} ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġ} Ġcatch Ġ( e : ĠException ) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġcount Failed Ek st ern Var sl ing For Producer ( Producer ( event . namespace , Ġevent . app nav n )) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġproblematic Events . add ( event ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġlog . warn (" Val ider ing Ġav Ġopp g ave - event Ġf ra ĠKafka Ġf ikk Ġen Ġu vent et Ġfe il , Ġful lf Ã¸ rer Ġbatch - en .", Ġe ) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġ} ĊĠĠĠĠĠĠĠĠĠĠĠ Ġ} ĊĠĠĠĠĠĠĠĠĠĠĠ Ġif Ġ( successfully Trans formed Events . isNotEmpty ()) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġproduce D ok not ifik as jon er And Persist To DB ( this , Ġsuccessfully Trans formed Events , Ġvar sel best illing er ) ĊĠĠĠĠĠĠĠĠĠĠĠ Ġ} ĊĠĠĠĠĠĠĠĠĠĠĠ Ġif Ġ( problem atic Events . isNotEmpty ()) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġthrow Exception For Problem atic Events ( problem atic Events ) ĊĠĠĠĠĠĠĠĠĠĠĠ Ġ} ĊĠĠĠĠĠĠĠ Ġ} ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġprivate Ġsuspend Ġfun Ġproduce D ok not ifik as jon er And Persist To DB ( event Metrics Session : ĠEvent Metrics Session , ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġsuccessfully Trans formed Events : ĠMap < String , ĠD ok not ifik as jon >, ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġvar sel best illing er : ĠList < Var sel best illing >): ĠList Persist ActionResult < Var sel best illing > Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġduplicate Var sel best illing er Ġ= Ġvar sel best illing Repository . fetch Var sel best illing er For Best illing Ids ( successfully Trans formed Events . keys . toList ()) ĊĠĠĠĠĠĠĠ Ġreturn Ġif ( duplicate Var sel best illing er . isEmpty ()) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġproduce ( successfully Trans formed Events , Ġvar sel best illing er ) ĊĠĠĠĠĠĠĠ Ġ} Ġelse Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġduplicate Best illing Ids Ġ= Ġduplicate Var sel best illing er . map Ġ{ Ġit . best ill ings Id Ġ} ĊĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġremaining Trans formed Events Ġ= Ġsuccessfully Trans formed Events . filter Keys Ġ{ Ġbest ill ings Id Ġ-> Ġ! duplicate Best illing Ids . contains ( best ill ings Id ) Ġ} ĊĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġvar sel best illing er To Order Ġ= Ġvar sel best illing er . filter Ġ{ Ġ! duplicate Best illing Ids . contains ( it . best ill ings Id )} ĊĠĠĠĠĠĠĠĠĠĠĠ Ġlog Duplicate Var sel best illing er ( event Metrics Session , Ġduplicate Var sel best illing er ) ĊĠĠĠĠĠĠĠĠĠĠĠ Ġproduce ( remaining Trans formed Events , Ġvar sel best illing er To Order ) ĊĠĠĠĠĠĠĠ Ġ} ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġprivate Ġsuspend Ġfun Ġproduce ( successfully Trans formed Events : ĠMap < String , ĠD ok not ifik as jon >, Ġvar sel best illing er : ĠList < Var sel best illing >): ĠList Persist ActionResult < Var sel best illing > Ġ{ ĊĠĠĠĠĠĠĠ Ġreturn Ġdok not ifik as jon Producer . send And Persist Events ( successfully Trans formed Events , Ġvar sel best illing er ) ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġprivate Ġfun Ġlog Duplicate Var sel best illing er ( event Metrics Session : ĠEvent Metrics Session , Ġduplicate Var sel best illing er : ĠList < Var sel best illing >) Ġ{ ĊĠĠĠĠĠĠĠ Ġduplicate Var sel best illing er . forEach { ĊĠĠĠĠĠĠĠĠĠĠĠ Ġlog . info (" Var sel Ġmed Ġbest ill ings id Ġ${ it . best ill ings Id } Ġer Ġall ere de Ġbest ilt , Ġbest iller Ġik ke ĠpÃ¥ Ġny tt .") ĊĠĠĠĠĠĠĠĠĠĠĠ Ġevent Metrics Session . count Duplicate Var sel best illing For Producer ( Producer ( it . namespace , Ġit . app nav n )) ĊĠĠĠĠĠĠĠ Ġ} ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġprivate Ġfun Ġthrow Exception For Problem atic Events ( problem atic Events : ĠMutable List < Consumer Record < N ok kel Intern , ĠO pp g ave Intern >>) Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġmessage Ġ= Ġ" En Ġeller Ġfl ere Ġopp g ave - event er Ġkun ne Ġik ke Ġsen des Ġtil Ġvar sel best iller Ġfor di Ġtransform ering Ġfe ilet ." ĊĠĠĠĠĠĠĠ Ġval Ġexception Ġ= ĠUn transform able Record Exception ( message ) ĊĠĠĠĠĠĠĠ Ġexception . add Context (" ant all Mis ly k ke de Transform as jon er ", Ġproblematic Events . size ) ĊĠĠĠĠĠĠĠ Ġthrow Ġexception ĊĠĠĠ Ġ} Ċ } Ċ