package Ġar . edu . usal . smart city . task Ċ Ċ import Ġar . edu . usal . smart city . model . city . Traffic Light Ċ import Ġar . edu . usal . smart city . model . city . Traffic Light Status Ċ import Ġar . edu . usal . smart city . repository . Traffic Light Repository Ċ import Ġorg . springframework . beans . factory . annotation . Autowired Ċ import Ġorg . springframework . scheduling . annotation . Scheduled Ċ import Ġorg . springframework . stereotype . Component Ċ import Ġjava . time . LocalDateTime ĊĊ Ċ @ Component Ċ class ĠTraffic Light Tasks Ġ{ ĊĊĠĠĠ Ġ@ Autowired Ġlateinit Ġvar Ġtraffic Light Repo : ĠTraffic Light Repository ĊĊĠĠĠ Ġ@ Scheduled ( fixed Rate Ġ= Ġ 1 0 0 0 0 ) ĊĠĠĠ Ġfun Ġlong Status Updater () Ġ{ ĊĠĠĠĠĠĠĠ Ġupdate Synchron ized () ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġ@ Scheduled ( fixed Rate Ġ= Ġ 3 0 0 0 ) ĊĠĠĠ Ġfun Ġtransition Status Updater () Ġ{ ĊĠĠĠĠĠĠĠ Ġupdate By Status ( Traffic Light Status . CHANGE _ STOP ) ĊĠĠĠĠĠĠĠ Ġupdate By Status ( Traffic Light Status . CHANGE _ GO ) ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġfun Ġupdate By Status ( status : ĠTraffic Light Status ) Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġupdate Time Ġ= ĠLocalDateTime . now (). minus Seconds ( status . seconds Long . to Long ()) ĊĠĠĠĠĠĠĠ Ġval Ġtraffic Lights Ġ= Ġtraffic Light Repo . findBy Status And UpdateTime LessThan ( status , Ġupdate Time ) ĊĊĠĠĠĠĠĠĠ Ġtraffic Lights . forEach Ġ{ Ġtraffic Light Ġ-> ĊĠĠĠĠĠĠĠĠĠĠĠ Ġtraffic Light . next Status () ĊĠĠĠĠĠĠĠĠĠĠĠ Ġtraffic Light Repo . save ( traffic Light ) ĊĠĠĠĠĠĠĠ Ġ} ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġfun Ġupdate Synchron ized (){ ĊĠĠĠĠĠĠĠ Ġtraffic Light Repo . find Up datable Without Intersection (). forEach ({ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġtraffic Light Ġ-> ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġtraffic Light Repo . save ( traffic Light . next Status ()) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġval Ġintersection Ġ= Ġfind Intersection ( traffic Light )?. next Status () ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġif ( intersection != null ) Ġtraffic Light Repo . save ( intersection ) ĊĠĠĠĠĠĠĠ Ġ}) ĊĠĠĠ Ġ} ĊĊĊĠĠĠ Ġfun Ġfind Intersection ( traffic Light : ĠTraffic Light ) Ġ: ĠTraffic Light ? { ĊĠĠĠĠĠĠĠ Ġreturn Ġtraffic Light Repo . findBy Position And Intersection ( traffic Light . intersection , Ġtraffic Light . position ) ĊĠĠĠ Ġ} Ċ }