org.jacoco.report.IReportVisitor Java Examples

public void jacocoCheckpoint(File classFile, File csvDir) {
    int idx = nextFileIdx;
    csvDir.mkdirs();
    try {
        // Get exec data by dynamically calling RT.getAgent().getExecutionData()
        Class RT = Class.forName("org.jacoco.agent.rt.RT");
        Method getAgent = RT.getMethod("getAgent");
        Object agent = getAgent.invoke(null);
        Method dump = agent.getClass().getMethod("getExecutionData", boolean.class);
        byte[] execData = (byte[]) dump.invoke(agent, false);

        // Analyze exec data
        ExecFileLoader loader = new ExecFileLoader();
        loader.load(new ByteArrayInputStream(execData));
        final CoverageBuilder builder = new CoverageBuilder();
        Analyzer analyzer = new Analyzer(loader.getExecutionDataStore(), builder);
        analyzer.analyzeAll(classFile);

        // Generate CSV
        File csv = new File(csvDir, String.format("cov-%05d.csv", idx));
        try (FileOutputStream out = new FileOutputStream(csv)) {
            IReportVisitor coverageVisitor = new CSVFormatter().createVisitor(out);
            coverageVisitor.visitBundle(builder.getBundle("JQF"), null);
            coverageVisitor.visitEnd();
            out.flush();
        }


    } catch (Exception e) {
        System.err.println(e);
    }
}
 

@VisibleForTesting
void createReport(
    final IBundleCoverage bundleCoverage, final Map<String, BranchCoverageDetail> branchDetails)
    throws IOException {
  JacocoLCOVFormatter formatter = new JacocoLCOVFormatter(createPathsSet());
  final IReportVisitor visitor = formatter.createVisitor(reportFile, branchDetails);

  // Initialize the report with all of the execution and session information. At this point the
  // report doesn't know about the structure of the report being created.
  visitor.visitInfo(
      execFileLoader.getSessionInfoStore().getInfos(),
      execFileLoader.getExecutionDataStore().getContents());

  // Populate the report structure with the bundle coverage information.
  // Call visitGroup if you need groups in your report.

  // Note the API requires a sourceFileLocator because the HTML and XML formatters display a page
  // of code annotated with coverage information. Having the source files is not actually needed
  // for generating the lcov report...
  visitor.visitBundle(
      bundleCoverage,
      new ISourceFileLocator() {

        @Override
        public Reader getSourceFile(String packageName, String fileName) throws IOException {
          return null;
        }

        @Override
        public int getTabWidth() {
          return 0;
        }
      });

  // Signal end of structure information to allow report to write all information out
  visitor.visitEnd();
}
 

/**
 * Load a JaCoCo binary report and convert it to HTML.
 * <br/>See <a href="http://www.eclemma.org/jacoco/trunk/doc/examples/java/ReportGenerator.java">report generator example code</a>.
 *
 * @param jacocoexec the JaCoCo binary report.
 * @param reportdir the folder to store HTML report.
 * @param prjClassesDir the directory containing project's compiled classes.
 * @param prjSourcesDir the directory containing project's Java source files.
 * @param projectName the project's name.
 * @return the absolute path of HTML report's {@code index.html} file.
 * @throws FileNotFoundException if the JaCoCo binary report, compiled classes or Java sources files directory can't be found.
 * @throws IOException if an I/O error occurs.
 */
public static String toHtmlReport(File jacocoexec, File reportdir, File prjClassesDir, File prjSourcesDir, String projectName)
        throws FileNotFoundException,
               IOException {
    // Load the JaCoCo binary report.
    FileInputStream fis = new FileInputStream(jacocoexec);
    ExecutionDataStore executionDataStore = new ExecutionDataStore();
    SessionInfoStore sessionInfoStore = new SessionInfoStore();
    try {
        ExecutionDataReader executionDataReader = new ExecutionDataReader(fis);
        executionDataReader.setExecutionDataVisitor(executionDataStore);
        executionDataReader.setSessionInfoVisitor(sessionInfoStore);
        while (executionDataReader.read()) {
        }
    } finally {
        fis.close();
    }

    // Convert the binary report to HTML.
    CoverageBuilder coverageBuilder = new CoverageBuilder();
    Analyzer analyzer = new Analyzer(executionDataStore, coverageBuilder);
    analyzer.analyzeAll(prjClassesDir);
    IBundleCoverage bundleCoverage = coverageBuilder.getBundle("JaCoCoverage analysis of project \"" + projectName
            + "\" (powered by JaCoCo from EclEmma)");
    HTMLFormatter htmlformatter = new HTMLFormatter();
    IReportVisitor visitor = htmlformatter.createVisitor(new FileMultiReportOutput(reportdir));
    visitor.visitInfo(sessionInfoStore.getInfos(), executionDataStore.getContents());
    visitor.visitBundle(bundleCoverage, new DirectorySourceFileLocator(prjSourcesDir, DEF_ENCODING, 4));
    visitor.visitEnd();
    return new File(reportdir, "index.html").getAbsolutePath();
}
 

/**
 * Load a JaCoCo binary report and convert it to XML.
 * <br/>See <a href="http://www.eclemma.org/jacoco/trunk/doc/examples/java/ReportGenerator.java">report generator example code</a>.
 *
 * @param jacocoexec the JaCoCo binary report.
 * @param xmlreport the XML file to generate.
 * @param prjClassesDir the directory containing project's compiled classes.
 * @param prjSourcesDir the directory containing project's Java source files.
 * @throws FileNotFoundException if the JaCoCo binary report, compiled classes or Java sources files directory can't be found.
 * @throws IOException if an I/O error occurs.
 */
public static void toXmlReport(File jacocoexec, File xmlreport, File prjClassesDir, File prjSourcesDir)
        throws FileNotFoundException,
               IOException {
    // Load the JaCoCo binary report.
    FileInputStream fis = new FileInputStream(jacocoexec);
    ExecutionDataStore executionDataStore = new ExecutionDataStore();
    SessionInfoStore sessionInfoStore = new SessionInfoStore();
    try {
        ExecutionDataReader executionDataReader = new ExecutionDataReader(fis);
        executionDataReader.setExecutionDataVisitor(executionDataStore);
        executionDataReader.setSessionInfoVisitor(sessionInfoStore);
        while (executionDataReader.read()) {
        }
    } finally {
        fis.close();
    }

    // Convert the binary report to XML.
    CoverageBuilder coverageBuilder = new CoverageBuilder();
    Analyzer analyzer = new Analyzer(executionDataStore, coverageBuilder);
    analyzer.analyzeAll(prjClassesDir);
    IBundleCoverage bundleCoverage = coverageBuilder.getBundle("JaCoCoverage analysis (powered by JaCoCo from EclEmma)");
    XMLFormatter xmlformatter = new XMLFormatter();
    xmlformatter.setOutputEncoding(DEF_ENCODING);
    IReportVisitor visitor = xmlformatter.createVisitor(new FileOutputStream(xmlreport));
    visitor.visitInfo(sessionInfoStore.getInfos(), executionDataStore.getContents());
    visitor.visitBundle(bundleCoverage, new DirectorySourceFileLocator(prjSourcesDir, DEF_ENCODING, 4));
    visitor.visitEnd();
}
 

private void createReport(IBundleCoverage bundleCoverage) throws IOException {
  Set<String> unknownFormats = Sets.difference(reportFormats, KNOWN_REPORT_FORMATS);
  if (!unknownFormats.isEmpty()) {
    throw new RuntimeException("Unable to parse formats: " + String.join(",", reportFormats));
  }

  // Create a concrete report visitors based on some supplied
  // configuration. In this case we use the defaults
  List<IReportVisitor> visitors = new ArrayList<>();
  if (reportFormats.contains("csv")) {
    reportDirectory.mkdirs();
    CSVFormatter csvFormatter = new CSVFormatter();
    visitors.add(
        csvFormatter.createVisitor(
            new FileOutputStream(new File(reportDirectory, "coverage.csv"))));
  }

  if (reportFormats.contains("html")) {
    HTMLFormatter htmlFormatter = new HTMLFormatter();
    visitors.add(htmlFormatter.createVisitor(new FileMultiReportOutput(reportDirectory)));
  }

  if (reportFormats.contains("xml")) {
    reportDirectory.mkdirs();
    XMLFormatter xmlFormatter = new XMLFormatter();
    visitors.add(
        xmlFormatter.createVisitor(
            new FileOutputStream(new File(reportDirectory, "coverage.xml"))));
  }

  IReportVisitor visitor = new MultiReportVisitor(visitors);
  // Initialize the report with all of the execution and session
  // information. At this point the report doesn't know about the
  // structure of the report being created
  visitor.visitInfo(
      execFileLoader.getSessionInfoStore().getInfos(),
      execFileLoader.getExecutionDataStore().getContents());

  // Populate the report structure with the bundle coverage information.
  // Call visitGroup if you need groups in your report.
  visitor.visitBundle(bundleCoverage, createSourceFileLocator());

  // Signal end of structure information to allow report to write all
  // information out
  visitor.visitEnd();
}