package Ġorg . opp ia . domain . classify . rules . drag And Drop Sort Input Ċ Ċ import Ġorg . opp ia . app . model . Interaction Object Ċ import Ġorg . opp ia . app . model . ListOf Sets Of Html Strings Ċ import Ġorg . opp ia . app . model . String List Ċ import Ġorg . opp ia . domain . classify . Rule Classifier Ċ import Ġorg . opp ia . domain . classify . rules . Generic Rule Classifier Ċ import Ġorg . opp ia . domain . classify . rules . Rule Classifier Provider Ċ import Ġjavax . inject . Inject Ċ Ċ /** Ċ Ġ* ĠProvider Ġfor Ġa Ġclassifier Ġthat Ġdetermines Ġwhether Ġtwo Ġobjects Ġof Ġ[ ListOf Sets Of Html Strings ] Ġdiffer Ġby Ċ Ġ* Ġexactly Ġordering Ġof Ġone Ġitem Ġin Ġthe Ġlist . Ċ Ġ* Ċ Ġ* Ġhttps :// github . com / opp ia / opp ia / blob / 1 3 2 b 9 d 8 f 0 5 9 2 5 3 5 4 8 ea 1 ef adf 1 ff 7 6 4 1 6 dfa 2 8 3 2 / extensions / inter actions / Drag And Drop Sort Input / directives / drag - and - drop - sort - input - rules . service . ts # L 7 2 Ċ Ġ*/ Ċ // ĠTODO (# 1 5 8 0 ): ĠRe - restrict Ġaccess Ġusing ĠB azel Ġvis ibilities Ċ class ĠDrag Drop Sort Input Is EqualTo Ordering With One Item At Incorrect Position Classifier Provider Ċ @ Inject Ġconstructor ( ĊĠ Ġprivate Ġval Ġclassifier Factory : ĠGeneric Rule Classifier . Factory Ċ ) Ġ: ĠRule Classifier Provider , ĊĠ ĠGeneric Rule Classifier . Single Input Matcher < ListOf Sets Of Html Strings > Ġ{ ĊĊĠ Ġoverride Ġfun Ġcreate Rule Classifier (): ĠRule Classifier Ġ{ ĊĠĠĠ Ġreturn Ġclassifier Factory . create Single Input Classifier ( ĊĠĠĠĠĠ Ġexpected ObjectType Ġ= ĠInteraction Object . ObjectType Case . LIST _ OF _ SETS _ OF _ HTML _ STRING , ĊĠĠĠĠĠ Ġinput ParameterName Ġ= Ġ" x ", ĊĠĠĠĠĠ Ġmatcher Ġ= Ġthis ĊĠĠĠ Ġ) ĊĠ Ġ} ĊĊĠ Ġoverride Ġfun Ġmatches ( answer : ĠList Of Sets Of Html Strings , Ġinput : ĠList Of Sets Of Html Strings ): ĠBoolean Ġ{ ĊĠĠĠ Ġval Ġanswer String Sets Ġ= Ġanswer . set Of Html Strings List ĊĠĠĠ Ġval Ġinput String Sets Ġ= Ġinput . set Of Html Strings List ĊĠĠĠ Ġreturn Ġ( answer String Sets Ġzip Ġinput String Sets ). map Ġ{ Ġ( first , Ġsecond ) Ġ-> ĊĠĠĠĠĠ Ġcompute Symmetric Difference ( first , Ġsecond ). size ĊĠĠĠ Ġ}. reduce ( Int :: plus ) Ġ== Ġ 1 ĊĠ Ġ} ĊĊĠ Ġprivate Ġfun Ġcompute Symmetric Difference ( ĊĠĠĠ Ġfirst : ĠString List , ĊĠĠĠ Ġsecond : ĠString List ĊĠ Ġ): ĠSet < String > Ġ{ ĊĠĠĠ Ġval Ġunion Of Sets Of Html Strings Ġ= Ġunion Of Sets Of Html Strings ( first , Ġsecond ) ĊĠĠĠ Ġval Ġintersect Of Sets Of Html Strings Ġ= Ġintersect Of Sets Of Html Strings ( first , Ġsecond ) ĊĠĠĠ Ġreturn Ġunion Of Sets Of Html Strings Ġsubtract Ġintersect Of Sets Of Html Strings ĊĠ Ġ} ĊĊĠ Ġprivate Ġfun Ġunion Of Sets Of Html Strings ( first : ĠString List , Ġsecond : ĠString List ): ĠSet < String > Ġ{ ĊĠĠĠ Ġreturn ĠHashSet ( first . html List ) Ġunion ĠHashSet ( second . html List ) ĊĠ Ġ} ĊĊĠ Ġprivate Ġfun Ġintersect Of Sets Of Html Strings ( first : ĠString List , Ġsecond : ĠString List ): ĠSet < String > Ġ{ ĊĠĠĠ Ġreturn ĠHashSet ( first . html List ) Ġintersect ĠHashSet ( second . html List ) ĊĠ Ġ} Ċ } Ċ