[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 | import static de.ugoe.cs.autoquest.usability.util.TextInputUtil.characterIsLetterOrDigitPredicate;
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| 6 |
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| 7 | import com.google.common.base.CharMatcher;
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| 8 | import com.google.common.base.Optional;
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| 9 | import com.google.common.collect.Multiset;
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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 NoLetterOrDigitTextInputsEvaluator extends RuleEvaluator {
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| 19 |
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| 20 | public NoLetterOrDigitTextInputsEvaluator(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 | int allCharactersCount = 0;
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| 40 | int noLetterOrDigitCount = 0;
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| 41 | for(String textFragment : enteredTextFragments.elementSet()) {
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| 42 | int occurencesOfTextFragment = enteredTextFragments.count(textFragment);
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| 43 | allCharactersCount += CharMatcher.ANY.countIn(textFragment) * occurencesOfTextFragment;
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| 44 | noLetterOrDigitCount += CharMatcher.forPredicate(characterIsLetterOrDigitPredicate()).countIn(textFragment) * occurencesOfTextFragment;
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| 45 | }
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| 46 | return allCharactersCount != 0 ? (float) noLetterOrDigitCount / (float) allCharactersCount : 0;
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| 47 | }
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| 48 |
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| 49 | @Override
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| 50 | protected Optional<UsabilityDefectSeverityLevel> determineSeverityLevel(float evaluationMetric) {
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| 51 | Optional<UsabilityDefectSeverityLevel> recommendationSeverityLevel = Optional.absent();
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| 52 | if (evaluationMetric > 0.1) // every 10th sign
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| 53 | {
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| 54 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.HIGH);
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| 55 | }
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| 56 | else if (evaluationMetric > 0.05) // every 20th sign
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| 57 | {
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| 58 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.MEDIUM);
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| 59 | }
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| 60 | else if (evaluationMetric > 0.02) // every 50th sign
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| 61 | {
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| 62 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.LOW);
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| 63 | }
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| 64 | else if (evaluationMetric > 0.01) // every 100th sign
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| 65 | {
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| 66 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.INFO);
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| 67 | }
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| 68 | return recommendationSeverityLevel;
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| 69 | }
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| 70 |
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| 71 | }
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