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Java library for reporting metrics to any timeseries database.

There is a newer version: 1.0.2

package org.kairosdb.metrics4j.internal;

import org.kairosdb.metrics4j.collectors.Collector;
import org.kairosdb.metrics4j.collectors.MetricCollector;
import org.kairosdb.metrics4j.reporting.MetricReporter;
import org.kairosdb.metrics4j.reporting.MetricValue;
import org.kairosdb.metrics4j.reporting.ReportedMetric;

import java.time.Instant;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public class CollectorCollectionAdapter extends MetricsGatherer implements CollectorCollection
{
	private final Collector m_baseCollector;

	//todo change so we can keep track of how often they are used and get rid of old ones
	private final Map m_collectors;
	private final ArgKey m_argKey;

	public CollectorCollectionAdapter(Collector baseCollector, ArgKey argKey)
	{
		m_baseCollector = baseCollector;
		m_argKey = argKey;
		m_collectors = new ConcurrentHashMap<>();
	}

	private MetricCollector newCollector(TagKey tagKey)
	{
		return m_baseCollector.clone();
	}

	void addCollector(TagKey tagKey, MetricCollector collector)
	{
		m_collectors.put(tagKey, collector);
	}

	@Override
	public MetricCollector getCollector(TagKey tagKey)
	{
		return m_collectors.computeIfAbsent(tagKey, (tk) -> newCollector(tk));
	}

	@Override
	protected ArgKey getArgKey()
	{
		return m_argKey;
	}

	@Override
	protected Map getCollectors()
	{
		return m_collectors;
	}
}