How to use

getType

method

in

co.cask.cdap.api.metrics.MetricValue

 @Override
 protected MetricValues computeNext() {
  while (iterator.hasNext()) {
   Map.Entry<Map<String, String>, LoadingCache<String, AggregatedMetricsEmitter>> entry = iterator.next();
   Map<String, AggregatedMetricsEmitter> metricEmitters = entry.getValue().asMap();
   // +1 because we add extra metric about how many metric values did we emit in this context (see below)
   List<MetricValue> metricValues = Lists.newArrayListWithCapacity(metricEmitters.size() + 1);
   for (Map.Entry<String, AggregatedMetricsEmitter> emitterEntry : metricEmitters.entrySet()) {
    MetricValue metricValue = emitterEntry.getValue().emit();
    // skip increment by 0
    if (metricValue.getType() == MetricType.COUNTER && metricValue.getValue() == 0) {
     continue;
    }
    metricValues.add(metricValue);
   }
   if (metricValues.isEmpty()) {
    // skip if there are no metric values to send
    continue;
   }
   // number of emitted metrics
   metricValues.add(new MetricValue("metrics.emitted.count", MetricType.COUNTER, metricValues.size() + 1));
   LOG.trace("Emit metric {}", metricValues);
   return new MetricValues(entry.getKey(), timestamp, metricValues);
  }
  return endOfData();
 }
};

 @Override
 protected MetricValues computeNext() {
  while (iterator.hasNext()) {
   Map.Entry<Map<String, String>, LoadingCache<String, AggregatedMetricsEmitter>> entry = iterator.next();
   Map<String, AggregatedMetricsEmitter> metricEmitters = entry.getValue().asMap();
   // +1 because we add extra metric about how many metric values did we emit in this context (see below)
   List<MetricValue> metricValues = Lists.newArrayListWithCapacity(metricEmitters.size() + 1);
   for (Map.Entry<String, AggregatedMetricsEmitter> emitterEntry : metricEmitters.entrySet()) {
    MetricValue metricValue = emitterEntry.getValue().emit();
    // skip increment by 0
    if (metricValue.getType() == MetricType.COUNTER && metricValue.getValue() == 0) {
     continue;
    }
    metricValues.add(metricValue);
   }
   if (metricValues.isEmpty()) {
    // skip if there are no metric values to send
    continue;
   }
   // number of emitted metrics
   metricValues.add(new MetricValue("metrics.emitted.count", MetricType.COUNTER, metricValues.size() + 1));
   LOG.trace("Emit metric {}", metricValues);
   return new MetricValues(entry.getKey(), timestamp, metricValues);
  }
  return endOfData();
 }
};

@Override
public void add(Collection<? extends MetricValues> metricValues) {
 List<CubeFact> facts = Lists.newArrayListWithCapacity(metricValues.size());
 for (MetricValues metricValue : metricValues) {
  String scope = metricValue.getTags().get(Constants.Metrics.Tag.SCOPE);
  List<Measurement> metrics = Lists.newArrayList();
  // todo improve this logic?
  for (MetricValue metric : metricValue.getMetrics()) {
   String measureName = (scope == null ? "system." : scope + ".") + metric.getName();
   MeasureType type = metric.getType() == MetricType.COUNTER ? MeasureType.COUNTER : MeasureType.GAUGE;
   metrics.add(new Measurement(measureName, type, metric.getValue()));
  }
  CubeFact fact = new CubeFact(metricValue.getTimestamp())
   .addDimensionValues(metricValue.getTags())
   .addMeasurements(metrics);
  facts.add(fact);
 }
 cube.get().add(facts);
}

@Override
public void add(Collection<? extends MetricValues> metricValues) {
 List<CubeFact> facts = Lists.newArrayListWithCapacity(metricValues.size());
 for (MetricValues metricValue : metricValues) {
  String scope = metricValue.getTags().get(Constants.Metrics.Tag.SCOPE);
  List<Measurement> metrics = Lists.newArrayList();
  // todo improve this logic?
  for (MetricValue metric : metricValue.getMetrics()) {
   String measureName = (scope == null ? "system." : scope + ".") + metric.getName();
   MeasureType type = metric.getType() == MetricType.COUNTER ? MeasureType.COUNTER : MeasureType.GAUGE;
   metrics.add(new Measurement(measureName, type, metric.getValue()));
  }
  CubeFact fact = new CubeFact(metricValue.getTimestamp())
   .addDimensionValues(metricValue.getTags())
   .addMeasurements(metrics);
  facts.add(fact);
 }
 cube.get().add(facts);
}