Github user abhishekagarwal87 commented on a diff in the pull request:
https://github.com/apache/storm/pull/1560#discussion_r70787294
--- Diff:
storm-core/src/jvm/org/apache/storm/metric/util/DataPointPopulator.java ---
@@ -0,0 +1,61 @@
+package org.apache.storm.metric.util;
+
+import org.apache.storm.metric.api.IMetricsConsumer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+public class DataPointPopulator implements Serializable {
+ public static final Logger LOG =
LoggerFactory.getLogger(DataPointPopulator.class);
+
+ private final boolean populateMapType;
+ private final String metricNameSeparator;
+
+ public DataPointPopulator(boolean populateMapType, String
metricNameSeparator) {
+ this.populateMapType = populateMapType;
+ this.metricNameSeparator = metricNameSeparator;
+ }
+
+ public Collection<IMetricsConsumer.DataPoint>
populateDataPoints(Collection<IMetricsConsumer.DataPoint> dataPoints) {
+ if (!populateMapType) {
+ return dataPoints;
+ }
+
+ List<IMetricsConsumer.DataPoint> populatedDataPoints = new
ArrayList<>();
+
+ for (IMetricsConsumer.DataPoint dataPoint : dataPoints) {
+ populatedDataPoints.addAll(populateDataPoint(dataPoint));
+ }
+
+ return populatedDataPoints;
+ }
+
+ public Collection<IMetricsConsumer.DataPoint>
populateDataPoint(IMetricsConsumer.DataPoint dataPoint) {
--- End diff --
this currently does not handle nested maps. Is that intended?
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