/*
* Copyright 2014 NAVER Corp.
*
* 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.
*/
package com.navercorp.pinpoint.web.applicationmap.histogram;
import com.navercorp.pinpoint.web.applicationmap.rawdata.LinkCallData;
import com.navercorp.pinpoint.web.util.TimeWindow;
import com.navercorp.pinpoint.web.util.TimeWindowDownSampler;
import com.navercorp.pinpoint.web.vo.Application;
import com.navercorp.pinpoint.web.vo.Range;
import com.navercorp.pinpoint.web.vo.ResponseTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.*;
/**
* @author emeroad
*/
public class ApplicationTimeHistogramBuilder {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final Application application;
private final Range range;
private final TimeWindow window;
public ApplicationTimeHistogramBuilder(Application application, Range range) {
if (application == null) {
throw new NullPointerException("application must not be null");
}
if (range == null) {
throw new NullPointerException("range must not be null");
}
this.application = application;
this.range = range;
this.window = new TimeWindow(range, TimeWindowDownSampler.SAMPLER);
}
public ApplicationTimeHistogram build(List<ResponseTime> responseHistogramList) {
if (responseHistogramList == null) {
throw new NullPointerException("responseHistogramList must not be null");
}
Map<Long, TimeHistogram> applicationLevelHistogram = new HashMap<>();
for (ResponseTime responseTime : responseHistogramList) {
final Long timeStamp = responseTime.getTimeStamp();
TimeHistogram timeHistogram = applicationLevelHistogram.get(timeStamp);
if (timeHistogram == null) {
timeHistogram = new TimeHistogram(application.getServiceType(), timeStamp);
applicationLevelHistogram.put(timeStamp, timeHistogram);
}
// add each agent-level data
Histogram applicationResponseHistogram = responseTime.getApplicationResponseHistogram();
timeHistogram.add(applicationResponseHistogram);
}
// Collections.sort(histogramList, TimeHistogram.TIME_STAMP_ASC_COMPARATOR);
List<TimeHistogram> histogramList = interpolation(applicationLevelHistogram.values());
if (logger.isTraceEnabled()) {
for (TimeHistogram histogram : histogramList) {
logger.trace("applicationLevel histogram:{}", histogram);
}
}
ApplicationTimeHistogram applicationTimeHistogram = new ApplicationTimeHistogram(application, range, histogramList);
return applicationTimeHistogram;
}
public ApplicationTimeHistogram build(Collection<LinkCallData> linkCallDataMapList) {
Map<Long, TimeHistogram> applicationLevelHistogram = new HashMap<>();
for (LinkCallData linkCallData : linkCallDataMapList) {
for (TimeHistogram timeHistogram : linkCallData.getTimeHistogram()) {
Long timeStamp = timeHistogram.getTimeStamp();
TimeHistogram histogram = applicationLevelHistogram.get(timeStamp);
if (histogram == null) {
histogram = new TimeHistogram(timeHistogram.getHistogramSchema(), timeStamp);
applicationLevelHistogram.put(timeStamp, histogram);
}
histogram.add(timeHistogram);
}
}
List<TimeHistogram> histogramList = interpolation(applicationLevelHistogram.values());
if (logger.isTraceEnabled()) {
for (TimeHistogram histogram : histogramList) {
logger.trace("applicationLevel histogram:{}", histogram);
}
}
ApplicationTimeHistogram applicationTimeHistogram = new ApplicationTimeHistogram(application, range, histogramList);
return applicationTimeHistogram;
}
private List<TimeHistogram> interpolation(Collection<TimeHistogram> histogramList) {
// upon individual span query, "window time" alone may not be enough
//
Map<Long, TimeHistogram> resultMap = new HashMap<>();
for (Long time : window) {
resultMap.put(time, new TimeHistogram(application.getServiceType(), time));
}
for (TimeHistogram timeHistogram : histogramList) {
long time = window.refineTimestamp(timeHistogram.getTimeStamp());
TimeHistogram windowHistogram = resultMap.get(time);
if (windowHistogram == null) {
windowHistogram = new TimeHistogram(application.getServiceType(), time);
resultMap.put(time, windowHistogram);
}
windowHistogram.add(timeHistogram);
}
List<TimeHistogram> resultList = new ArrayList<>(resultMap.values());
Collections.sort(resultList, TimeHistogram.TIME_STAMP_ASC_COMPARATOR);
return resultList;
}
}