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QuizExtractors.java
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QuizExtractors.java
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package org.genericsystem.quiz.utils;
import java.util.Comparator;
import org.genericsystem.common.Generic;
import org.genericsystem.quiz.model.Answer;
import org.genericsystem.quiz.model.Question;
import org.genericsystem.quiz.model.ScoreUserQuiz;
import org.genericsystem.reactor.Context;
import org.genericsystem.reactor.Tag;
import org.genericsystem.reactor.context.ObservableListExtractor;
import org.genericsystem.reactor.context.ObservableListExtractorFromContext;
import org.genericsystem.reactor.context.ObservableValueSelector;
import javafx.beans.binding.ListBinding;
import javafx.beans.property.Property;
import javafx.collections.ObservableList;
public class QuizExtractors {
public static class ANSWERS_EXTRACTOR implements ObservableListExtractor {
// generics[0] est l'element courant.
// Le getRoot permet d'utiliser la methode find (Le root donne accès à tous les éléments du context)
// TODO Rendre la méthode générique -> lui faire trouver les enfants d'un generic ssi il y a un unique enfant
@Override
public ObservableList<Generic> apply(Generic[] generics) {
return generics[0].getObservableHolders(generics[0].getRoot().find(Answer.class));
}
}
public static class QUESTIONS_EXTRACTOR implements ObservableListExtractor {
@Override
public ObservableList<Generic> apply(Generic[] generics) {
return generics[0].getObservableHolders(generics[0].getRoot().find(Question.class));
}
}
public static class USER_EXTRACTOR implements ObservableValueSelector {
@Override
public Generic apply(Generic[] generics) {
return generics[0].getComponent(0);
}
}
public static class QUIZ_EXTRACTOR implements ObservableValueSelector {
@Override
public Generic apply(Generic[] generics) {
return generics[0].getComponent(1);
}
}
public static class SCORES_FILTERED implements ObservableListExtractorFromContext {
@Override
public ObservableList<Generic> apply(Context context, Tag tag) {
Comparator<Generic> byScoreUser = (score1, score2) -> {
if (!score1.getClass().isAssignableFrom(score1.getRoot().find(ScoreUserQuiz.class).getClass()) || !score2.getClass().isAssignableFrom(score2.getRoot().find(ScoreUserQuiz.class).getClass()))
return 0;
else
return Integer.compare((Integer) score2.getValue(), (Integer) score1.getValue());
};
Comparator<Generic> byQuiz = (score1, score2) -> {
if (!score1.getClass().isAssignableFrom(score1.getRoot().find(ScoreUserQuiz.class).getClass()) || !score2.getClass().isAssignableFrom(score2.getRoot().find(ScoreUserQuiz.class).getClass()))
return 0;
else
return score1.getComponent(1).compareTo(score2.getComponent(1));
};
if (tag.getProperty(QuizContextAction.SELECTED_QUIZ, context) == null)
tag.getRootTag().createNewProperty(QuizContextAction.SELECTED_QUIZ, context.getRootContext());
if (tag.getProperty(QuizContextAction.SELECTED_USER, context) == null)
tag.getRootTag().createNewProperty(QuizContextAction.SELECTED_USER, context.getRootContext());
Property<Generic> selectedQuiz = tag.getProperty(QuizContextAction.SELECTED_QUIZ, context);
Property<String> selectedUser = tag.getProperty(QuizContextAction.SELECTED_USER, context);
return new ListBinding<Generic>() {
{
bind(selectedQuiz, selectedUser);
}
@Override
protected ObservableList<Generic> computeValue() {
return context.getGeneric().getObservableSubInstances().sorted(byQuiz.thenComparing(byScoreUser)).filtered(scoreUser -> {
if (selectedQuiz.getValue() == null && selectedUser.getValue() == null)
return true;
boolean isQuiz = scoreUser.getComponent(1).equals(selectedQuiz.getValue());
boolean isUser = true;
if (selectedQuiz.getValue() != null && (selectedUser.getValue() == null || selectedUser.getValue().trim().isEmpty()))
return isQuiz;
if (selectedQuiz.getValue() == null && (selectedUser.getValue() != null || !selectedUser.getValue().trim().isEmpty())) {
isUser = ((String) scoreUser.getComponent(0).getValue()).trim().toLowerCase().contains(selectedUser.getValue().trim().toLowerCase());
return isUser;
}
return (isQuiz && isUser);
});
}
};
}
}
}