public static boolean acceptMetric()

in ambari-metrics-timelineservice/src/main/java/org/apache/ambari/metrics/core/timeline/TimelineMetricsFilter.java [144:196]

39 lines of code
17 McCabe index (conditional complexity)


  public static boolean acceptMetric(TimelineMetric metric) {

    String appId = metric.getAppId();
    String metricName = metric.getMetricName();
    // App Blacklisting
    if (CollectionUtils.isNotEmpty(blacklistedApps) && blacklistedApps.contains(appId)) {
      return false;
    }

    //Metric Blacklisting
    if (CollectionUtils.isNotEmpty(blacklistedMetrics) || CollectionUtils.isNotEmpty(blacklistedPatterns)) {
      if (blacklistedMetrics.contains(metricName)) {
        return false;
      }

      for (Pattern p : blacklistedPatterns) {
        Matcher m = p.matcher(metricName);
        if (m.find()) {
          blacklistedMetrics.add(metricName);
          return false;
        }
      }
    }

    //Special Case appId = ams-hbase whitelisting.
    if ("ams-hbase".equals(appId) && CollectionUtils.isNotEmpty(amshbaseWhitelist)) {
      return amshbaseWhitelist.contains(metric.getMetricName());
    }

    // App Whitelisting
    if (CollectionUtils.isNotEmpty(whitelistedApps) && whitelistedApps.contains(appId)) {
      return true;
    }

    // Metric Whitelisting
    if (CollectionUtils.isEmpty(whitelistedMetrics) && CollectionUtils.isEmpty(whitelistedMetricPatterns)) {
      return true;
    }

    if (whitelistedMetrics.contains(metricName)) {
      return true;
    }

    for (Pattern p : whitelistedMetricPatterns) {
      Matcher m = p.matcher(metricName);
      if (m.find()) {
        whitelistedMetrics.add(metricName);
        return true;
      }
    }

    return false;
  }