| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.kylin.metadata.cube.planner.algorithm; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.math.BigInteger; |
| import java.util.BitSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.commons.math3.genetics.Chromosome; |
| import org.apache.kylin.metadata.cube.planner.algorithm.genetic.BitsChromosome; |
| import org.apache.kylin.metadata.cube.planner.algorithm.genetic.BitsChromosomeHelper; |
| import org.apache.kylin.metadata.cube.planner.algorithm.genetic.GeneticAlgorithm; |
| import org.junit.Test; |
| |
| import com.google.common.collect.Sets; |
| |
| public class ITGeneticAlgorithmTest extends ITAlgorithmTestBase { |
| |
| @Test |
| public void testChromosomeIsSame() { |
| BenefitPolicy benefitPolicy = new BPUSCalculator(cuboidStats); |
| |
| double maxSpaceLimit = cuboidStats.getBaseCuboidSize() * 10; |
| BitsChromosomeHelper helper = new BitsChromosomeHelper(maxSpaceLimit, cuboidStats); |
| |
| double maxSpaceLimit1 = cuboidStats.getBaseCuboidSize() * 12; |
| BitsChromosomeHelper helper1 = new BitsChromosomeHelper(maxSpaceLimit1, cuboidStats); |
| |
| BitSet representation = new BitSet(); |
| representation.set(10); |
| Chromosome chromosome = new BitsChromosome(representation, benefitPolicy, helper); |
| Set<Chromosome> chromosomeSet = Sets.newHashSet(chromosome); |
| |
| BitSet representation1 = new BitSet(); |
| representation1.set(10); |
| chromosomeSet.add(((BitsChromosome) chromosome).newBitsChromosome(representation1)); |
| assertEquals(1, chromosomeSet.size()); |
| |
| BitSet representation2 = new BitSet(); |
| representation2.set(12); |
| chromosomeSet.add(((BitsChromosome) chromosome).newBitsChromosome(representation2)); |
| assertEquals(2, chromosomeSet.size()); |
| |
| BitSet representation3 = new BitSet(); |
| representation3.set(12); |
| chromosomeSet.add(new BitsChromosome(representation3, benefitPolicy, helper1)); |
| assertEquals(2, chromosomeSet.size()); |
| } |
| |
| @Test |
| public void testBPUSCalculator() { |
| BenefitPolicy benefitPolicy = new BPUSCalculator(cuboidStats); |
| GeneticAlgorithm algorithm = new GeneticAlgorithm(-1, benefitPolicy, cuboidStats); |
| |
| List<BigInteger> recommendList = algorithm.recommend(10); |
| System.out.println("recommendList by BPUSCalculator: " + recommendList); |
| System.out.println("Cost evaluated for each query: " + getQueryCostRatio(cuboidStats, recommendList)); |
| } |
| |
| @Test |
| public void testPBPUSCalculator() { |
| BenefitPolicy benefitPolicy = new PBPUSCalculator(cuboidStats); |
| GeneticAlgorithm algorithm = new GeneticAlgorithm(-1, benefitPolicy, cuboidStats); |
| |
| List<BigInteger> recommendList = algorithm.recommend(10); |
| System.out.println("recommendList by PBPUSCalculator:" + recommendList); |
| System.out.println("Cost evaluated for each query: " + getQueryCostRatio(cuboidStats, recommendList)); |
| } |
| |
| @Test |
| public void testSPBPUSCalculator() { |
| BenefitPolicy benefitPolicy = new SPBPUSCalculator(cuboidStats); |
| GeneticAlgorithm algorithm = new GeneticAlgorithm(-1, benefitPolicy, cuboidStats); |
| |
| List<BigInteger> recommendList = algorithm.recommend(10); |
| System.out.println("recommendList by SPBPUSCalculator:" + recommendList); |
| System.out.println("Cost evaluated for each query: " + getQueryCostRatio(cuboidStats, recommendList)); |
| } |
| } |