[1030] | 1 | package de.ugoe.cs.autoquest.usability.evaluation.rule.evaluator;
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| 2 |
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| 3 | import static de.ugoe.cs.autoquest.usability.tasktree.filter.EventTypeFilter.TEXT_INPUT;
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| 4 | import static de.ugoe.cs.autoquest.usability.util.TextInputUtil.aggregateEnteredTextFromTextInputs;
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| 5 |
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| 6 | import com.google.common.base.Optional;
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| 7 | import com.google.common.base.Predicate;
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| 8 | import com.google.common.collect.Multiset;
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| 9 | import com.google.common.collect.Multisets;
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| 10 |
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| 11 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTree;
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| 12 | import de.ugoe.cs.autoquest.usability.evaluation.result.UsabilityDefectSeverityLevel;
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| 13 | import de.ugoe.cs.autoquest.usability.evaluation.rule.set.UsabilityRule;
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| 14 | import de.ugoe.cs.autoquest.usability.tasktree.filter.FilterStatistic;
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| 15 | import de.ugoe.cs.autoquest.usability.tasktree.filter.IterativeDFSFilterStrategy;
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| 16 | import de.ugoe.cs.autoquest.usability.tasktree.filter.TaskTreeFilter;
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| 17 |
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| 18 | public class TextInputEntryRepetitionsEvaluator extends RuleEvaluator {
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| 19 |
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| 20 | public TextInputEntryRepetitionsEvaluator(UsabilityRule evaluatedUsabilityRule, ITaskTree taskTree) {
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| 21 | super(evaluatedUsabilityRule, taskTree);
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| 22 | }
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| 23 |
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| 24 | @Override
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| 25 | protected FilterStatistic nodesUnderEvaluation(ITaskTree taskTree) {
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| 26 | Optional<FilterStatistic> cachedNodes = loadFromCache(TEXT_INPUT);
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| 27 | return cachedNodes.isPresent() ? cachedNodes.get() : cacheAndReturnNodes(taskTree, TEXT_INPUT);
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| 28 | }
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| 29 |
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| 30 | @Override
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| 31 | protected FilterStatistic extractNodesFromTaskTree(ITaskTree taskTree) {
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| 32 | return new TaskTreeFilter(new IterativeDFSFilterStrategy())
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| 33 | .filterByEventType(TEXT_INPUT).from(taskTree);
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| 34 | }
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| 35 |
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| 36 | @Override
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| 37 | protected float calculateEvaluationMetric() {
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| 38 | Multiset<String> enteredTextFragments = aggregateEnteredTextFromTextInputs(this.filteredNodes.nodesMatchedFilter());
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| 39 | Multiset<String> orderedTextFragmentsWithMultipleOccurences = onlyTextFragmentsWithMultipleOccurences(enteredTextFragments);
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| 40 | if(orderedTextFragmentsWithMultipleOccurences.isEmpty()) return 0;
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| 41 | String wordWithHighestRepetitionInTextFragments = orderedTextFragmentsWithMultipleOccurences.iterator().next();
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| 42 | int numberOfRepeatedWords = orderedTextFragmentsWithMultipleOccurences.entrySet().size();
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| 43 | int maxRepetitions = orderedTextFragmentsWithMultipleOccurences.count(wordWithHighestRepetitionInTextFragments);
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| 44 | return Math.max(numberOfRepeatedWords, maxRepetitions);
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| 45 | }
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| 46 |
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| 47 | private Multiset<String> onlyTextFragmentsWithMultipleOccurences(final Multiset<String> allTextInputs) {
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| 48 | return Multisets.copyHighestCountFirst(Multisets.filter(allTextInputs, new Predicate<String>() {
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| 49 |
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| 50 | @Override
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| 51 | public boolean apply(String word) {
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| 52 | return allTextInputs.count(word) > 1;
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| 53 | }
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| 54 |
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| 55 | }));
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| 56 | }
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| 57 |
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| 58 | @Override
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| 59 | protected Optional<UsabilityDefectSeverityLevel> determineSeverityLevel(float evaluationMetric) {
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| 60 | Optional<UsabilityDefectSeverityLevel> recommendationSeverityLevel = Optional.absent();
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| 61 | if (evaluationMetric > 10) {
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| 62 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.HIGH);
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| 63 | }
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| 64 | else if (evaluationMetric > 4) {
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| 65 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.MEDIUM);
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| 66 | }
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| 67 | else if (evaluationMetric > 2) {
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| 68 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.LOW);
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| 69 | }
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| 70 | else if (evaluationMetric > 1) {
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| 71 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.INFO);
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| 72 | }
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| 73 | return recommendationSeverityLevel;
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| 74 | }
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| 75 |
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| 76 | }
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