1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany
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2 | //
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3 | // Licensed under the Apache License, Version 2.0 (the "License");
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4 | // you may not use this file except in compliance with the License.
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5 | // You may obtain a copy of the License at
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6 | //
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7 | // http://www.apache.org/licenses/LICENSE-2.0
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8 | //
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9 | // Unless required by applicable law or agreed to in writing, software
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10 | // distributed under the License is distributed on an "AS IS" BASIS,
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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12 | // See the License for the specific language governing permissions and
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13 | // limitations under the License.
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14 |
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15 | package de.ugoe.cs.autoquest.usability.evaluation.rule.set;
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16 |
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17 | import java.util.EnumSet;
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18 |
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19 | import org.apache.commons.lang.StringUtils;
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20 |
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21 | import com.google.common.base.Optional;
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22 |
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23 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskTree;
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24 | import de.ugoe.cs.autoquest.usability.evaluation.result.UsabilityDefect;
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25 |
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26 | /**
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27 | * <p>
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28 | * TODO comment
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29 | * </p>
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30 | *
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31 | * @author Alexander Deicke
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32 | */
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33 | public class EmptyUsabilityRuleset implements UsabilityRuleset {
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34 |
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35 | private enum EmptyUsabilityRule implements UsabilityRule {
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36 | ;
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37 |
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38 | @Override
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39 | public Optional<UsabilityDefect> evaluate(ITaskTree taskTree) {
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40 | return Optional.absent();
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41 | }
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42 |
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43 | @Override
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44 | public String ruleIdentifier() {
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45 | return StringUtils.EMPTY;
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46 | }
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47 |
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48 | }
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49 |
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50 | private final EnumSet<EmptyUsabilityRule> EMPTY_USABILITY_RULESET = EnumSet
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51 | .noneOf(EmptyUsabilityRule.class);
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52 |
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53 | @Override
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54 | public EnumSet<? extends UsabilityRule> evaluationRules() {
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55 | return EMPTY_USABILITY_RULESET;
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56 | }
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57 |
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58 | }
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