/**
* Licensed to DigitalPebble Ltd under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* DigitalPebble licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.digitalpebble.storm.metrics;
import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import backtype.storm.metric.api.IMetric;
import com.codahale.metrics.Meter;
import com.codahale.metrics.MetricRegistry;
/**
* @author Enno Shioji (enno.shioji@peerindex.com)
*/
public class MeterMetric implements IMetric {
private static final Logger log = LoggerFactory
.getLogger(MeterMetric.class);
private final MetricRegistry registry = new MetricRegistry();
public Meter scope(String key) {
return registry.meter(key);
}
public Object getValueAndReset() {
final Map<String, Number> ret = new HashMap<String, Number>();
for (Map.Entry<String, Meter> entry : registry.getMeters().entrySet()) {
String prefix = entry.getKey() + "/";
Meter meter = entry.getValue();
ret.put(prefix + "count", meter.getCount());
ret.put(prefix + "mean_rate", meter.getMeanRate());
ret.put(prefix + "m1_rate", meter.getOneMinuteRate());
ret.put(prefix + "m5_rate", meter.getFiveMinuteRate());
ret.put(prefix + "m15_rate", meter.getFifteenMinuteRate());
}
return ret;
}
}