How to use org.apache.flink.metrics.reporter

  @Override
  public void run() {
    try {
      reporter.report();
    } catch (Throwable t) {
      LOG.warn("Error while reporting metrics", t);
    }
  }
}

@Override
public void notifyOfRemovedMetric(Metric metric, String metricName, MetricGroup group) {
 final String name = group.getMetricIdentifier(metricName, this);
 super.notifyOfRemovedMetric(metric, metricName, group);
 synchronized (this) {
  ps.printf("%s: %s%n", name, Metrics.toString(metric));
 }
}

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfRemovedMetric(metric, metricName, front);

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfAddedMetric(metric, metricName, front);

for (MetricReporter reporter : reporters) {
  try {
    reporter.close();
  } catch (Throwable t) {
    LOG.warn("Metrics reporter did not shut down cleanly", t);

reporterConfig.addAllToProperties(metricConfig);
LOG.info("Configuring {} with {}.", namedReporter, metricConfig);
reporterInstance.open(metricConfig);

  @Override
  public void run() {
    try {
      reporter.report();
    } catch (Throwable t) {
      LOG.warn("Error while reporting metrics", t);
    }
  }
}

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfRemovedMetric(metric, metricName, front);

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfAddedMetric(metric, metricName, front);

for (MetricReporter reporter : reporters) {
  try {
    reporter.close();
  } catch (Throwable t) {
    throwable = ExceptionUtils.firstOrSuppressed(t, throwable);

reporterConfig.addAllToProperties(metricConfig);
LOG.info("Configuring {} with {}.", reporterClass.getSimpleName(), metricConfig);
reporterInstance.open(metricConfig);

  @Override
  public void run() {
    try {
      reporter.report();
    } catch (Throwable t) {
      LOG.warn("Error while reporting metrics", t);
    }
  }
}

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfRemovedMetric(metric, metricName, front);

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfAddedMetric(metric, metricName, front);

for (MetricReporter reporter : reporters) {
  try {
    reporter.close();
  } catch (Throwable t) {
    throwable = ExceptionUtils.firstOrSuppressed(t, throwable);

reporterConfig.addAllToProperties(metricConfig);
LOG.info("Configuring {} with {}.", namedReporter, metricConfig);
reporterInstance.open(metricConfig);

  @Override
  public void run() {
    try {
      reporter.report();
    } catch (Throwable t) {
      LOG.warn("Error while reporting metrics", t);
    }
  }
}

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfRemovedMetric(metric, metricName, front);

if (reporter != null) {
  FrontMetricGroup front = new FrontMetricGroup<AbstractMetricGroup<?>>(i, group);
  reporter.notifyOfAddedMetric(metric, metricName, front);

for (MetricReporter reporter : reporters) {
  try {
    reporter.close();
  } catch (Throwable t) {
    throwable = ExceptionUtils.firstOrSuppressed(t, throwable);