/**
* Constructs Countergroups from job runtime statistics
*
* @param counterNameToValue
* @return
*/
public static Map<String, CounterGroup> counterGroupInfoMap(
Map<String, Double> counterNameToValue) {
Counters counters = new Counters();
for (Map.Entry<String, ? extends Number> entry : counterNameToValue.entrySet()) {
String[] cNames = entry.getKey().split("::");
String groupName = cNames[0];
String counterName = cNames[1];
Counter counter = counters.findCounter(groupName, counterName);
counter.setValue(entry.getValue().longValue());
}
return CounterGroup.counterGroupInfoMap(counters);
}
/**
* helper method for counter group map retrieval
*
* @param HadoopStepStats
* @return a map of counter name to counter value
*/
private Map<String, Long> counterGroupInfoMapHelper(HadoopStepStats stats) {
Counters counters = new Counters();
Map<String, Long> counterNameToValue = new HashMap<String, Long>();
for (String groupName : stats.getCounterGroups()) { // retreiving groups
for (String counterName :
stats.getCountersFor(groupName)) { // retreiving counters in that group
Long counterValue = stats.getCounterValue(groupName, counterName);
counterNameToValue.put(groupName + "::" + counterName, counterValue);
// creating counter
Counter counter = counters.findCounter(groupName, counterName);
counter.setValue(counterValue);
}
}
setCounterGroupMap(CounterGroup.counterGroupInfoMap(counters));
return counterNameToValue;
}