package Ġcz . h link app . gv pin tran et . data . data _ sources . server . modules Ċ Ċ import Ġandroidx . lifecycle . LiveData Ċ import Ġandroidx . lifecycle . Mutable LiveData Ċ import Ġcz . h link app . gv pin tran et . data . data _ sources . room . Main Dao Ċ import Ġcz . h link app . gv pin tran et . data . data _ sources . server . In tran et Service Ċ import Ġcz . h link app . gv pin tran et . data . utils . event _ handling . Request Info Ċ import Ġcz . h link app . gv pin tran et . model . Article Ċ import Ġcz . h link app . gv pin tran et . model . Piece Of News Ċ import Ġcz . h link app . gv pin tran et . utils . Connectivity Checker Ċ import Ġokhttp 3 . ResponseBody Ċ import Ġretrofit 2 . Call Ċ import Ġretrofit 2 . Callback Ċ import Ġretrofit 2 . Response Ċ import Ġjava . util . concurrent . Executor Ċ import Ġjavax . inject . Inject Ċ import Ġjavax . inject . Singleton Ċ Ċ /** Ċ Ġ* ĠA Ġ[ cz . h link app . gv pin tran et . data . data _ sources . server . Server DataSource ] Ġmodule Ġthat Ġhandles Ġposting Ġarticles Ġand Ġevents Ġto Ġthe Ġserver . Ċ Ġ*/ Ċ @ Singleton Ċ class ĠContent Add Server DataSource Module Ġ@ Inject Ġconstructor ( ĊĠĠĠ Ġexecutor : ĠExecutor , ĊĠĠĠ Ġdao : ĠMain Dao , ĊĠĠĠ Ġconnectivity Checker : ĠConnect ivity Checker , ĊĠĠĠ Ġin tran et Service : ĠIn tran et Service Ċ ){ ĊĊĠĠĠ Ġprivate Ġval Ġm Executor Ġ= Ġexecutor ĊĠĠĠ Ġprivate Ġval Ġm Connectivity Checker Ġ= Ġconnectivity Checker ĊĠĠĠ Ġprivate Ġval Ġm In tran et Service Ġ= Ġin tran et Service ĊĊĠĠĠ Ġprivate Ġval Ġm Post Article Status Ġ= ĠMutable LiveData < Request Info >( Request Info . not Started ()) ĊĠĠĠ Ġprivate Ġval Ġm Post Event Status Ġ= ĠMutable LiveData < Request Info >( Request Info . not Started ()) ĊĊĠĠĠ Ġval Ġpost Article Status Ġ: ĠLive Data < Request Info > Ġget () Ġ= Ġm Post Article Status ĊĠĠĠ Ġval Ġpost Event Status Ġ: ĠLive Data < Request Info > Ġget () Ġ= Ġm Post Event Status ĊĊĠĠĠ Ġ/** ĊĠĠĠĠ Ġ* ĠPosts Ġthe Ġgiven Ġ[ article ] Ġto Ġthe Ġserver . ĊĠĠĠĠ Ġ* ĠThe Ġ[ article ] Ġobject Ġmust Ġhave Ġthe Ġfollowing Ġfields Ġset : Ġ[ Article . title ], Ġ[ Article . author ], Ġ[ Article . email ] Ġand Ġat Ġleast Ġone Ġof Ġ[ Article . description ] Ġor Ġ[ Article . content ]. ĊĠĠĠĠ Ġ*/ ĊĠĠĠ Ġfun Ġpost Article ( article : ĠArticle ) Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġstatus Ġ= Ġm Post Article Status ĊĠĠĠĠĠĠĠ Ġif Ġ( status . value ?. is Processing () Ġ== Ġfalse ) Ġif Ġ( m Connectivity Checker . isConnected ()) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġstatus . post Value ( Request Info . processing ()) ĊĠĠĠĠĠĠĠĠĠĠĠ Ġm In tran et Service . post Article ( article ). enqueue ( object Ġ: ĠCallback < ResponseBody > Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġoverride Ġfun Ġon Failure ( call : ĠCall < ResponseBody >, Ġt : ĠThrowable ) Ġ= Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . FAILED )) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġoverride Ġfun Ġon Response ( call : ĠCall < ResponseBody >, Ġresponse : ĠResponse < ResponseBody >) Ġ= ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġif Ġ( response . is Successful ) Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . OK )) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġelse Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . FAILED )) Ġ}) ĊĠĠĠĠĠĠĠ Ġ} Ġelse Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . NO _ INTER NET )) ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġ/** ĊĠĠĠĠ Ġ* ĠPosts Ġthe Ġgiven Ġevent /[ piece Of News ] Ġto Ġthe Ġserver . ĊĠĠĠĠ Ġ* ĠThe Ġ[ piece Of News ] Ġobject Ġmust Ġhave Ġthe Ġfollowing Ġfields Ġset : Ġ[ Piece Of News . title ], Ġ[ Piece Of News . description ]. ĊĠĠĠĠ Ġ*/ ĊĠĠĠ Ġfun Ġpost Event ( piece Of News : ĠPiece Of News ) Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġstatus Ġ= Ġm Post Event Status ĊĠĠĠĠĠĠĠ Ġif Ġ( status . value ?. is Processing () Ġ== Ġfalse ) Ġif Ġ( m Connectivity Checker . isConnected ()) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġstatus . post Value ( Request Info . processing ()) ĊĠĠĠĠĠĠĠĠĠĠĠ Ġm In tran et Service . post Event ( piece Of News ). enqueue ( object Ġ: ĠCallback < ResponseBody > Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġoverride Ġfun Ġon Failure ( call : ĠCall < ResponseBody >, Ġt : ĠThrowable ) Ġ= Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . FAILED )) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġoverride Ġfun Ġon Response ( call : ĠCall < ResponseBody >, Ġresponse : ĠResponse < ResponseBody >) Ġ= ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġif Ġ( response . is Successful ) Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . OK )) ĊĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠĠ Ġelse Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . FAILED )) Ġ}) ĊĠĠĠĠĠĠĠ Ġ} Ġelse Ġstatus . post Value ( Request Info . done ( Request Info . Request Result . NO _ INTER NET )) ĊĠĠĠ Ġ} Ċ }