1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany
|
---|
2 | //
|
---|
3 | // Licensed under the Apache License, Version 2.0 (the "License");
|
---|
4 | // you may not use this file except in compliance with the License.
|
---|
5 | // You may obtain a copy of the License at
|
---|
6 | //
|
---|
7 | // http://www.apache.org/licenses/LICENSE-2.0
|
---|
8 | //
|
---|
9 | // Unless required by applicable law or agreed to in writing, software
|
---|
10 | // distributed under the License is distributed on an "AS IS" BASIS,
|
---|
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
---|
12 | // See the License for the specific language governing permissions and
|
---|
13 | // limitations under the License.
|
---|
14 |
|
---|
15 | package de.ugoe.cs.autoquest.usability.rules.metrics;
|
---|
16 |
|
---|
17 | import static de.ugoe.cs.autoquest.usability.tasktree.filters.EventTypeFilter.TEXT_INPUT;
|
---|
18 |
|
---|
19 | import java.util.List;
|
---|
20 |
|
---|
21 | import com.google.common.base.Optional;
|
---|
22 | import com.google.common.base.Predicate;
|
---|
23 | import com.google.common.collect.Iterables;
|
---|
24 |
|
---|
25 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IEventTask;
|
---|
26 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask;
|
---|
27 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskModel;
|
---|
28 | import de.ugoe.cs.autoquest.usability.EvaluationMethodCaller;
|
---|
29 | import de.ugoe.cs.autoquest.usability.result.DefectDescriptionResolver;
|
---|
30 | import de.ugoe.cs.autoquest.usability.result.UsabilityDefect;
|
---|
31 | import de.ugoe.cs.autoquest.usability.rules.UsabilityMetric;
|
---|
32 | import de.ugoe.cs.autoquest.usability.rules.UsabilityRule;
|
---|
33 | import de.ugoe.cs.autoquest.usability.tasktree.FilterResult;
|
---|
34 | import de.ugoe.cs.autoquest.usability.tasktree.IterativeDFSFilterStrategy;
|
---|
35 | import de.ugoe.cs.autoquest.usability.tasktree.filters.TaskModelFilter;
|
---|
36 |
|
---|
37 | /**
|
---|
38 | * <p>
|
---|
39 | * TODO comment
|
---|
40 | * </p>
|
---|
41 | *
|
---|
42 | * @author Alexander Deicke
|
---|
43 | */
|
---|
44 | public class TextInputRatioMetric extends UsabilityRule implements UsabilityMetric {
|
---|
45 |
|
---|
46 | /**
|
---|
47 | * <p>
|
---|
48 | * TODO: comment
|
---|
49 | * </p>
|
---|
50 | *
|
---|
51 | * @param taskTree
|
---|
52 | */
|
---|
53 | public TextInputRatioMetric(ITaskModel taskModel) {
|
---|
54 | super(taskModel);
|
---|
55 | this.name = "TextInputRatio";
|
---|
56 | this.defect = new DefectDescriptionResolver().descriptionFor(this.getClass().getSimpleName());
|
---|
57 | }
|
---|
58 |
|
---|
59 | /* (non-Javadoc)
|
---|
60 | * @see de.ugoe.cs.autoquest.usability.rules.UsabilityRule#check()
|
---|
61 | */
|
---|
62 | @Override
|
---|
63 | public Optional<UsabilityDefect> calculate() {
|
---|
64 | FilterResult textInputEvents = extractNodesFromTaskTree();
|
---|
65 | float evaluationMetric = calculateEvaluationMetric(textInputEvents.tasksMatchedFilter(), textInputEvents.tasksNotMatchedFilter());
|
---|
66 | return this.defect.isPresent(evaluationMetric);
|
---|
67 | }
|
---|
68 |
|
---|
69 | private FilterResult extractNodesFromTaskTree() {
|
---|
70 | return new TaskModelFilter(new IterativeDFSFilterStrategy()).filterByEventType(TEXT_INPUT)
|
---|
71 | .from(this.taskModel);
|
---|
72 | }
|
---|
73 |
|
---|
74 | private float calculateEvaluationMetric(List<ITask> textInputEvents, List<ITask> nonTextInputEvents) {
|
---|
75 | float numberOfTextInputEvents = textInputEvents.size();
|
---|
76 | float numberOfNonTextInputEvents = nrOfEventTasksNotMatchedFilter(nonTextInputEvents);
|
---|
77 | return numberOfTextInputEvents / (numberOfTextInputEvents + numberOfNonTextInputEvents);
|
---|
78 | }
|
---|
79 |
|
---|
80 | private int nrOfEventTasksNotMatchedFilter(List<ITask> nonTextInputEvents) {
|
---|
81 | return Iterables.size(Iterables.filter(nonTextInputEvents,
|
---|
82 | new Predicate<ITask>() {
|
---|
83 |
|
---|
84 | @Override
|
---|
85 | public boolean apply(ITask task) {
|
---|
86 | return task instanceof IEventTask;
|
---|
87 | }
|
---|
88 | }));
|
---|
89 | }
|
---|
90 |
|
---|
91 | /* (non-Javadoc)
|
---|
92 | * @see de.ugoe.cs.autoquest.usability.rules.UsabilityRule#callEvaluationMetho(de.ugoe.cs.autoquest.usability.EvaluationMethodCaller)
|
---|
93 | */
|
---|
94 | @Override
|
---|
95 | public Optional<UsabilityDefect> callEvaluationMethod(EvaluationMethodCaller evaluationMethodCaller)
|
---|
96 | {
|
---|
97 | return evaluationMethodCaller.check(this);
|
---|
98 | }
|
---|
99 | }
|
---|