1 | package de.ugoe.cs.autoquest.usability.evaluation.result;
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2 |
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3 | import java.io.IOException;
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4 | import java.io.InputStream;
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5 |
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6 | import javax.xml.bind.JAXBContext;
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7 | import javax.xml.bind.JAXBElement;
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8 | import javax.xml.bind.Unmarshaller;
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9 |
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10 | import com.google.common.base.Optional;
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11 | import com.google.common.base.Predicate;
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12 | import com.google.common.collect.Iterables;
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13 |
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14 | import de.ugoe.cs.autoquest.usability.DefectDescription;
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15 | import de.ugoe.cs.autoquest.usability.DefectDescriptions;
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16 | import de.ugoe.cs.autoquest.usability.evaluation.rule.set.UsabilityRule;
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17 |
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18 | public class UsabilityDefectXmlDescriptionResolver implements UsabilityDefectDescriptionResolver {
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19 |
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20 | private static final String DEFAULT_MESSAGES_FILE = "defectDescriptions_en.xml";
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21 |
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22 | private static final UsabilityDefectXmlDescriptionResolver instance = new UsabilityDefectXmlDescriptionResolver();
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23 |
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24 | private DefectDescriptions defectDescriptions;
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25 |
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26 | private UsabilityDefectXmlDescriptionResolver() {
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27 | loadDescriptions();
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28 | }
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29 |
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30 | @SuppressWarnings("unchecked")
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31 | private void loadDescriptions() {
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32 | InputStream inputStream =
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33 | ClassLoader.getSystemResourceAsStream(DEFAULT_MESSAGES_FILE);
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34 | try {
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35 | String packageName = DefectDescriptions.class.getPackage().getName();
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36 | JAXBContext jaxbContext = JAXBContext.newInstance(packageName);
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37 | Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
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38 |
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39 | defectDescriptions =
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40 | ((JAXBElement<DefectDescriptions>) unmarshaller.unmarshal(inputStream))
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41 | .getValue();
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42 | }
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43 | catch (Exception e) {
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44 | throw new RuntimeException
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45 | ("error while initializing usability defect descriptions", e);
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46 | }
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47 | finally {
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48 | if (inputStream != null) {
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49 | try {
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50 | inputStream.close();
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51 | }
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52 | catch (IOException e) {
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53 | // ignore
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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 |
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59 | public static UsabilityDefectXmlDescriptionResolver instance() {
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60 | return instance;
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61 | }
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62 |
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63 | @Override
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64 | public DefectDescription descriptionFor(final UsabilityRule usabilityRule) {
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65 | Optional<DefectDescription> guidlineDescription = Iterables.tryFind(defectDescriptions.getDefectDescription(), new Predicate<DefectDescription>() {
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66 |
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67 | public boolean apply(DefectDescription defectDescription) {
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68 | return usabilityRule.ruleIdentifier().equals(defectDescription.getDefectId());
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69 | }
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70 |
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71 | });
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72 | if(!guidlineDescription.isPresent())
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73 | throw new RuntimeException
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74 | ("error while initializing usability defect descriptions. No " +
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75 | "description text available for description " + usabilityRule.ruleIdentifier());
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76 | return guidlineDescription.get();
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77 | }
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78 |
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79 | }
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