/*
* Copyright 2014 Red Hat, Inc. and/or its affiliates.
*
* 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 org.optaplanner.benchmark.impl.statistic.subsingle.pickedmovetypebestscore;
import java.io.File;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamOmitField;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.YIntervalRenderer;
import org.jfree.data.xy.XYIntervalSeries;
import org.jfree.data.xy.XYIntervalSeriesCollection;
import org.optaplanner.benchmark.config.statistic.SingleStatisticType;
import org.optaplanner.benchmark.impl.report.BenchmarkReport;
import org.optaplanner.benchmark.impl.result.SubSingleBenchmarkResult;
import org.optaplanner.benchmark.impl.statistic.PureSubSingleStatistic;
import org.optaplanner.benchmark.impl.statistic.common.MillisecondsSpentNumberFormat;
import org.optaplanner.core.api.score.Score;
import org.optaplanner.core.api.solver.Solver;
import org.optaplanner.core.impl.localsearch.scope.LocalSearchPhaseScope;
import org.optaplanner.core.impl.localsearch.scope.LocalSearchStepScope;
import org.optaplanner.core.impl.phase.event.PhaseLifecycleListenerAdapter;
import org.optaplanner.core.impl.phase.scope.AbstractPhaseScope;
import org.optaplanner.core.impl.phase.scope.AbstractStepScope;
import org.optaplanner.core.impl.score.ScoreUtils;
import org.optaplanner.core.impl.score.definition.ScoreDefinition;
import org.optaplanner.core.impl.solver.DefaultSolver;
@XStreamAlias("pickedMoveTypeBestScoreDiffSubSingleStatistic")
public class PickedMoveTypeBestScoreDiffSubSingleStatistic<Solution_>
extends PureSubSingleStatistic<Solution_, PickedMoveTypeBestScoreDiffStatisticPoint> {
@XStreamOmitField
private PickedMoveTypeBestScoreDiffSubSingleStatisticListener listener;
@XStreamOmitField
protected List<File> graphFileList = null;
public PickedMoveTypeBestScoreDiffSubSingleStatistic(SubSingleBenchmarkResult subSingleBenchmarkResult) {
super(subSingleBenchmarkResult, SingleStatisticType.PICKED_MOVE_TYPE_BEST_SCORE_DIFF);
listener = new PickedMoveTypeBestScoreDiffSubSingleStatisticListener();
}
/**
* @return never null
*/
@Override
public List<File> getGraphFileList() {
return graphFileList;
}
// ************************************************************************
// Lifecycle methods
// ************************************************************************
@Override
public void open(Solver<Solution_> solver) {
((DefaultSolver<Solution_>) solver).addPhaseLifecycleListener(listener);
}
@Override
public void close(Solver<Solution_> solver) {
((DefaultSolver<Solution_>) solver).removePhaseLifecycleListener(listener);
}
private class PickedMoveTypeBestScoreDiffSubSingleStatisticListener extends PhaseLifecycleListenerAdapter<Solution_> {
private Score oldBestScore = null;
@Override
public void phaseStarted(AbstractPhaseScope<Solution_> phaseScope) {
if (phaseScope instanceof LocalSearchPhaseScope) {
oldBestScore = phaseScope.getBestScore();
}
}
@Override
public void phaseEnded(AbstractPhaseScope<Solution_> phaseScope) {
if (phaseScope instanceof LocalSearchPhaseScope) {
oldBestScore = null;
}
}
@Override
public void stepEnded(AbstractStepScope<Solution_> stepScope) {
if (stepScope instanceof LocalSearchStepScope) {
localSearchStepEnded((LocalSearchStepScope<Solution_>) stepScope);
}
}
private void localSearchStepEnded(LocalSearchStepScope<Solution_> stepScope) {
if (stepScope.getBestScoreImproved()) {
long timeMillisSpent = stepScope.getPhaseScope().calculateSolverTimeMillisSpentUpToNow();
String moveType = stepScope.getStep().getSimpleMoveTypeDescription();
Score newBestScore = stepScope.getScore();
Score bestScoreDiff = newBestScore.subtract(oldBestScore);
oldBestScore = newBestScore;
pointList.add(new PickedMoveTypeBestScoreDiffStatisticPoint(
timeMillisSpent, moveType, bestScoreDiff));
}
}
}
// ************************************************************************
// CSV methods
// ************************************************************************
@Override
protected String getCsvHeader() {
return PickedMoveTypeBestScoreDiffStatisticPoint.buildCsvLine("timeMillisSpent", "moveType", "bestScoreDiff");
}
@Override
protected PickedMoveTypeBestScoreDiffStatisticPoint createPointFromCsvLine(ScoreDefinition scoreDefinition,
List<String> csvLine) {
return new PickedMoveTypeBestScoreDiffStatisticPoint(Long.parseLong(csvLine.get(0)),
csvLine.get(1), scoreDefinition.parseScore(csvLine.get(2)));
}
// ************************************************************************
// Write methods
// ************************************************************************
@Override
public void writeGraphFiles(BenchmarkReport benchmarkReport) {
List<Map<String, XYIntervalSeries>> moveTypeToSeriesMapList
= new ArrayList<>(BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE);
for (PickedMoveTypeBestScoreDiffStatisticPoint point : getPointList()) {
long timeMillisSpent = point.getTimeMillisSpent();
String moveType = point.getMoveType();
double[] levelValues = ScoreUtils.extractLevelDoubles(point.getBestScoreDiff());
for (int i = 0; i < levelValues.length && i < BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE; i++) {
if (i >= moveTypeToSeriesMapList.size()) {
moveTypeToSeriesMapList.add(new LinkedHashMap<>());
}
Map<String, XYIntervalSeries> moveTypeToSeriesMap = moveTypeToSeriesMapList.get(i);
XYIntervalSeries series = moveTypeToSeriesMap.computeIfAbsent(moveType,
k -> new XYIntervalSeries(moveType));
double yValue = levelValues[i];
// In an XYInterval the yLow must be lower than yHigh
series.add(timeMillisSpent, timeMillisSpent, timeMillisSpent,
yValue, (yValue > 0.0) ? 0.0 : yValue, (yValue > 0.0) ? yValue : 0.0);
}
}
graphFileList = new ArrayList<>(moveTypeToSeriesMapList.size());
for (int scoreLevelIndex = 0; scoreLevelIndex < moveTypeToSeriesMapList.size(); scoreLevelIndex++) {
XYPlot plot = createPlot(benchmarkReport, scoreLevelIndex);
XYItemRenderer renderer = new YIntervalRenderer();
plot.setRenderer(renderer);
XYIntervalSeriesCollection seriesCollection = new XYIntervalSeriesCollection();
for (XYIntervalSeries series : moveTypeToSeriesMapList.get(scoreLevelIndex).values()) {
seriesCollection.addSeries(series);
}
plot.setDataset(seriesCollection);
String scoreLevelLabel = subSingleBenchmarkResult.getSingleBenchmarkResult().getProblemBenchmarkResult()
.findScoreLevelLabel(scoreLevelIndex);
JFreeChart chart = new JFreeChart(subSingleBenchmarkResult.getName()
+ " picked move type best " + scoreLevelLabel + " diff statistic",
JFreeChart.DEFAULT_TITLE_FONT, plot, true);
graphFileList.add(writeChartToImageFile(chart,
"PickedMoveTypeBestScoreDiffStatisticLevel" + scoreLevelIndex));
}
}
private XYPlot createPlot(BenchmarkReport benchmarkReport, int scoreLevelIndex) {
Locale locale = benchmarkReport.getLocale();
NumberAxis xAxis = new NumberAxis("Time spent");
xAxis.setNumberFormatOverride(new MillisecondsSpentNumberFormat(locale));
String scoreLevelLabel = subSingleBenchmarkResult.getSingleBenchmarkResult().getProblemBenchmarkResult()
.findScoreLevelLabel(scoreLevelIndex);
NumberAxis yAxis = new NumberAxis("Best " + scoreLevelLabel + " diff");
yAxis.setNumberFormatOverride(NumberFormat.getInstance(locale));
yAxis.setAutoRangeIncludesZero(true);
XYPlot plot = new XYPlot(null, xAxis, yAxis, null);
plot.setOrientation(PlotOrientation.VERTICAL);
return plot;
}
}