1 | package de.ugoe.cs.autoquest.usability.evaluation.rule.evaluator;
|
---|
2 |
|
---|
3 | import static de.ugoe.cs.autoquest.usability.tasktree.filter.EventTypeFilter.TEXT_INPUT;
|
---|
4 | import static de.ugoe.cs.autoquest.usability.util.TextInputUtil.aggregateEnteredTextFromTextInputs;
|
---|
5 | import static de.ugoe.cs.autoquest.usability.util.TextInputUtil.characterIsLetterOrDigitPredicate;
|
---|
6 |
|
---|
7 | import com.google.common.base.CharMatcher;
|
---|
8 | import com.google.common.base.Optional;
|
---|
9 | import com.google.common.collect.Multiset;
|
---|
10 |
|
---|
11 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTree;
|
---|
12 | import de.ugoe.cs.autoquest.usability.evaluation.result.UsabilityDefectSeverityLevel;
|
---|
13 | import de.ugoe.cs.autoquest.usability.evaluation.rule.set.UsabilityRule;
|
---|
14 | import de.ugoe.cs.autoquest.usability.tasktree.filter.FilterStatistic;
|
---|
15 | import de.ugoe.cs.autoquest.usability.tasktree.filter.IterativeDFSFilterStrategy;
|
---|
16 | import de.ugoe.cs.autoquest.usability.tasktree.filter.TaskTreeFilter;
|
---|
17 |
|
---|
18 | public class NoLetterOrDigitTextInputsEvaluator extends RuleEvaluator {
|
---|
19 |
|
---|
20 | public NoLetterOrDigitTextInputsEvaluator(UsabilityRule evaluatedUsabilityRule, ITaskTree taskTree) {
|
---|
21 | super(evaluatedUsabilityRule, taskTree);
|
---|
22 | }
|
---|
23 |
|
---|
24 | @Override
|
---|
25 | protected FilterStatistic nodesUnderEvaluation(ITaskTree taskTree) {
|
---|
26 | Optional<FilterStatistic> cachedNodes = loadFromCache(TEXT_INPUT);
|
---|
27 | return cachedNodes.isPresent() ? cachedNodes.get() : cacheAndReturnNodes(taskTree, TEXT_INPUT);
|
---|
28 | }
|
---|
29 |
|
---|
30 | @Override
|
---|
31 | protected FilterStatistic extractNodesFromTaskTree(ITaskTree taskTree) {
|
---|
32 | return new TaskTreeFilter(new IterativeDFSFilterStrategy())
|
---|
33 | .filterByEventType(TEXT_INPUT).from(taskTree);
|
---|
34 | }
|
---|
35 |
|
---|
36 | @Override
|
---|
37 | protected float calculateEvaluationMetric() {
|
---|
38 | Multiset<String> enteredTextFragments = aggregateEnteredTextFromTextInputs(this.filteredNodes.nodesMatchedFilter());
|
---|
39 | int allCharactersCount = 0;
|
---|
40 | int noLetterOrDigitCount = 0;
|
---|
41 | for(String textFragment : enteredTextFragments.elementSet()) {
|
---|
42 | int occurencesOfTextFragment = enteredTextFragments.count(textFragment);
|
---|
43 | allCharactersCount += CharMatcher.ANY.countIn(textFragment) * occurencesOfTextFragment;
|
---|
44 | noLetterOrDigitCount += CharMatcher.forPredicate(characterIsLetterOrDigitPredicate()).countIn(textFragment) * occurencesOfTextFragment;
|
---|
45 | }
|
---|
46 | return allCharactersCount != 0 ? (float) noLetterOrDigitCount / (float) allCharactersCount : 0;
|
---|
47 | }
|
---|
48 |
|
---|
49 | @Override
|
---|
50 | protected Optional<UsabilityDefectSeverityLevel> determineSeverityLevel(float evaluationMetric) {
|
---|
51 | Optional<UsabilityDefectSeverityLevel> recommendationSeverityLevel = Optional.absent();
|
---|
52 | if (evaluationMetric > 0.1) // every 10th sign
|
---|
53 | {
|
---|
54 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.HIGH);
|
---|
55 | }
|
---|
56 | else if (evaluationMetric > 0.05) // every 20th sign
|
---|
57 | {
|
---|
58 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.MEDIUM);
|
---|
59 | }
|
---|
60 | else if (evaluationMetric > 0.02) // every 50th sign
|
---|
61 | {
|
---|
62 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.LOW);
|
---|
63 | }
|
---|
64 | else if (evaluationMetric > 0.01) // every 100th sign
|
---|
65 | {
|
---|
66 | recommendationSeverityLevel = Optional.of(UsabilityDefectSeverityLevel.INFO);
|
---|
67 | }
|
---|
68 | return recommendationSeverityLevel;
|
---|
69 | }
|
---|
70 |
|
---|
71 | }
|
---|