一次sonar project 掃描，sensorContext 分別會創建DefaultHighlighting（語言高亮標記設置）

和DefaultMeasure（統計測量屬性），且只能設置一次。否則會報錯：

Caused by: java.lang.UnsupportedOperationException: Can not add the same measure twice on src/main/resources/application-dev.properties: DefaultMeasure[component=src/main/resources/application-dev.properties,metric=Metric[id=<null>,key=ncloc,description=Non commenting lines of code,type=INT,direction=-1,domain=Size,name=Lines of Code,qualitative=false,userManaged=false,enabled=true,worstValue=<null>,bestValue=<null>,optimizedBestValue=false,hidden=false,deleteHistoricalData=false,decimalScale=<null>],value=12,fromCore=false]at org.sonar.scanner.sensor.DefaultSensorStorage.saveMeasure(DefaultSensorStorage.java:298)at org.sonar.scanner.sensor.DefaultSensorStorage.store(DefaultSensorStorage.java:236)at org.sonar.api.batch.sensor.measure.internal.DefaultMeasure.doSave(DefaultMeasure.java:95)at org.sonar.api.batch.sensor.internal.DefaultStorable.save(DefaultStorable.java:45)at com.lingtian.sonar.utils.api.visitors.metrics.MetricsVisitor.saveMetricOnFile(MetricsVisitor.java:56)at com.lingtian.sonar.utils.api.visitors.metrics.MetricsVisitor.leaveFile(MetricsVisitor.java:41)at com.lingtian.sonar.utils.astvisitor.SubscriptionVisitor.scanTree(SubscriptionVisitor.java:44)at com.lingtian.sonar.sensor.ConfigFileScanSensor.scanFile(ConfigFileScanSensor.java:152)at com.lingtian.sonar.sensor.ConfigFileScanSensor.analyzeFile(ConfigFileScanSensor.java:124)... 31 more

再次調用了sensorContext.<T>newMeasure().withValue(value).forMetric(metric).on(inputFile).save();

@Overridepublic void leaveFile(Tree tree) {LinesOfCodeVisitor linesOfCodeVisitor = new LinesOfCodeVisitor(tree);saveMetricOnFile(CoreMetrics.NCLOC, linesOfCodeVisitor.getNumberOfLinesOfCode());CommentLinesVisitor commentLinesVisitor = new CommentLinesVisitor(tree);saveMetricOnFile(CoreMetrics.COMMENT_LINES, commentLinesVisitor.getNumberOfCommentLines());StatementsVisitor statementsVisitor = new StatementsVisitor(tree);saveMetricOnFile(CoreMetrics.STATEMENTS, statementsVisitor.getNumberOfStatements());}@SuppressWarnings({ "rawtypes", "unchecked" })private <T extends Serializable> void saveMetricOnFile(Metric metric, T value) {sensorContext.<T>newMeasure().withValue(value).forMetric(metric).on(inputFile).save();}

DefaultHighlighting報錯：

Caused by: java.lang.UnsupportedOperationException: Trying to save highlighting twice for the same file is not supported: src/main/resources/application-dev.propertiesat org.sonar.scanner.sensor.DefaultSensorStorage. store(DefaultSensorStorage.java:432)at org.sonar.api.batch.sensor.highlighting.internal. DefaultHighlighting.doSave(DefaultHighlighting.java:121)at org.sonar.api.batch.sensor.internal. DefaultStorable.save(DefaultStorable.java:45)at com.lingtian.sonar.utils.api.visitors.SyntaxHighlighterVisitor. leaveFile(SyntaxHighlighterVisitor.java:50)at com.lingtian.sonar.utils.astvisitor.SubscriptionVisitor. scanTree(SubscriptionVisitor.java:46)at com.lingtian.sonar.sensor.ConfigFileScanSensor. scanFile(ConfigFileScanSensor.java:152)at com.lingtian.sonar.sensor.ConfigFileScanSensor. analyzeFile(ConfigFileScanSensor.java:124)... 31 more

再次調用了：

@Overridepublic void visitFile(Tree tree) {highlighting = sensorContext.newHighlighting().onFile(fileSystem.inputFile(fileSystem.predicates().is(getContext().getFile())));}

?

總結

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