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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 Amdocs
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.sparky.analytics;
import java.util.HashMap;
import java.util.concurrent.atomic.AtomicInteger;
/**
* The Class AbstractStatistics.
*/
public class AbstractStatistics implements ComponentStatistics {
private HashMap<String, AtomicInteger> namedCounters;
private HashMap<String, HistogramSampler> namedHistograms;
/**
* Instantiates a new abstract statistics.
*/
protected AbstractStatistics() {
namedCounters = new HashMap<String, AtomicInteger>();
namedHistograms = new HashMap<String, HistogramSampler>();
}
/* (non-Javadoc)
* @see org.openecomp.sparky.analytics.ComponentStatistics#addCounter(java.lang.String)
*/
/*
* sync-lock the creation of counters during initialization, but run time should not use lock
* synchronization, only thread safe types
*
*/
@Override
public synchronized void addCounter(String key) {
AtomicInteger counter = namedCounters.get(key);
if (counter == null) {
counter = new AtomicInteger(0);
namedCounters.put(key, counter);
}
}
/* (non-Javadoc)
* @see org.openecomp.sparky.analytics.ComponentStatistics#pegCounter(java.lang.String)
*/
@Override
public void pegCounter(String key) {
AtomicInteger counter = namedCounters.get(key);
if (counter != null) {
counter.incrementAndGet();
}
}
/* (non-Javadoc)
* @see org.openecomp.sparky.analytics.ComponentStatistics#incrementCounter(java.lang.String, int)
*/
@Override
public void incrementCounter(String key, int value) {
AtomicInteger counter = namedCounters.get(key);
if (counter != null) {
counter.addAndGet(value);
}
}
/* (non-Javadoc)
* @see org.openecomp.sparky.analytics.ComponentStatistics#addHistogram(java.lang.String, java.lang.String, long, int, int)
*/
@Override
public synchronized void addHistogram(String key, String histName, long maxYValue, int numBins,
int numDecimalPoints) {
HistogramSampler histSampler = namedHistograms.get(key);
if (histSampler == null) {
histSampler = new HistogramSampler(histName, maxYValue, numBins, numDecimalPoints);
namedHistograms.put(key, histSampler);
}
}
/* (non-Javadoc)
* @see org.openecomp.sparky.analytics.ComponentStatistics#updateHistogram(java.lang.String, long)
*/
@Override
public void updateHistogram(String key, long value) {
HistogramSampler histSampler = namedHistograms.get(key);
if (histSampler != null) {
histSampler.track(value);
}
}
/* (non-Javadoc)
* @see org.openecomp.sparky.analytics.ComponentStatistics#reset()
*/
@Override
public void reset() {
for (HistogramSampler h : namedHistograms.values()) {
h.clear();
}
for (AtomicInteger c : namedCounters.values()) {
c.set(0);
}
}
/**
* Gets the counter value.
*
* @param key the key
* @return the counter value
*/
protected int getCounterValue(String key) {
AtomicInteger counter = namedCounters.get(key);
if (counter == null) {
return -1;
}
return counter.get();
}
/**
* Gets the histogram stats.
*
* @param key the key
* @param verboseEnabled the verbose enabled
* @param indentPadding the indent padding
* @return the histogram stats
*/
protected String getHistogramStats(String key, boolean verboseEnabled, String indentPadding) {
HistogramSampler histSampler = namedHistograms.get(key);
if (histSampler == null) {
return null;
}
return histSampler.getStats(verboseEnabled, indentPadding);
}
}
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