org.optaplanner.benchmark.impl.ranking.SubSingleBenchmarkRankingComparator Maven / Gradle / Ivy
/*
* Copyright 2015 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.ranking;
import java.io.Serializable;
import java.util.Comparator;
import org.apache.commons.lang3.builder.CompareToBuilder;
import org.optaplanner.benchmark.impl.result.SubSingleBenchmarkResult;
import org.optaplanner.core.api.score.Score;
public class SubSingleBenchmarkRankingComparator implements Comparator, Serializable {
private final Comparator resilientScoreComparator = new ResilientScoreComparator();
@Override
public int compare(SubSingleBenchmarkResult a, SubSingleBenchmarkResult b) {
return new CompareToBuilder()
.append(b.hasAnyFailure(), a.hasAnyFailure()) // Reverse, less is better (redundant: failed benchmarks don't get ranked at all)
.append(b.getUninitializedVariableCount(), a.getUninitializedVariableCount()) // Reverse, less is better
.append(a.getAverageScore(), b.getAverageScore(), resilientScoreComparator)
.toComparison();
}
}