public void run()

in opennlp-tools/src/main/java/opennlp/tools/cmdline/postag/POSTaggerCrossValidatorTool.java [60:132]
60 lines of code
10 McCabe index (conditional complexity)

  public void run(String format, String[] args) {
    super.run(format, args);

    mlParams = CmdLineUtil.loadTrainingParameters(params.getParams(), false);
    if (mlParams == null) {
      mlParams = ModelUtil.createDefaultTrainingParameters();
    }

    POSTaggerEvaluationMonitor missclassifiedListener = null;
    if (params.getMisclassified()) {
      missclassifiedListener = new POSEvaluationErrorListener();
    }

    POSTaggerFineGrainedReportListener reportListener = null;
    File reportFile = params.getReportOutputFile();
    OutputStream reportOutputStream = null;
    if (reportFile != null) {
      CmdLineUtil.checkOutputFile("Report Output File", reportFile);
      try {
        reportOutputStream = new FileOutputStream(reportFile);
        reportListener = new POSTaggerFineGrainedReportListener(
            reportOutputStream);
      } catch (FileNotFoundException e) {
        throw createTerminationIOException(e);
      }
    }

    Map<String, Object> resources;
    try {
      resources = TokenNameFinderTrainerTool.loadResources(params.getResources(), params.getFeaturegen());
    }
    catch (IOException e) {
      throw new TerminateToolException(-1,"IO error while loading resources", e);
    }

    byte[] featureGeneratorBytes =
        TokenNameFinderTrainerTool.openFeatureGeneratorBytes(params.getFeaturegen());

    POSTaggerCrossValidator validator;
    try {
      validator = new POSTaggerCrossValidator(params.getLang(), mlParams,
          params.getDict(), featureGeneratorBytes, resources, params.getTagDictCutoff(),
          params.getFactory(), missclassifiedListener, reportListener);

      validator.evaluate(sampleStream, params.getFolds());
    } catch (IOException e) {
      throw new TerminateToolException(-1, "IO error while reading training data or indexing data: "
          + e.getMessage(), e);
    } finally {
      try {
        sampleStream.close();
      } catch (IOException e) {
        // sorry that this can fail
      }
    }

    logger.info("done");

    if (reportListener != null) {
      logger.info("Writing fine-grained report to {}",
          params.getReportOutputFile().getAbsolutePath());
      reportListener.writeReport();

      try {
        reportOutputStream.flush();
        reportOutputStream.close();
      } catch (IOException e) {
        // nothing to do
      }
    }

    logger.info("Accuracy: {}", validator.getWordAccuracy());
  }