DoubleChromosomeFactory.java

package net.bmahe.genetics4j.core.chromosomes.factory;

import java.util.Objects;

import java.util.function.Supplier;

import java.util.random.RandomGenerator;

import org.apache.commons.lang3.Validate;

import net.bmahe.genetics4j.core.chromosomes.DoubleChromosome;

import net.bmahe.genetics4j.core.spec.chromosome.ChromosomeSpec;

import net.bmahe.genetics4j.core.spec.chromosome.DoubleChromosomeSpec;

import net.bmahe.genetics4j.core.util.DistributionUtils;

public class DoubleChromosomeFactory implements ChromosomeFactory<DoubleChromosome> {

	private final RandomGenerator randomGenerator;

	public DoubleChromosomeFactory(final RandomGenerator _randomGenerator) {

		Objects.requireNonNull(_randomGenerator);

		this.randomGenerator = _randomGenerator;

	}

	@Override

	public boolean canHandle(final ChromosomeSpec chromosomeSpec) {

		Objects.requireNonNull(chromosomeSpec);

		return chromosomeSpec instanceof DoubleChromosomeSpec;

	}

	@Override

	public DoubleChromosome generate(final ChromosomeSpec chromosomeSpec) {

		Objects.requireNonNull(chromosomeSpec);

		Validate.isInstanceOf(DoubleChromosomeSpec.class, chromosomeSpec);

		final DoubleChromosomeSpec doubleChromosomeSpec = (DoubleChromosomeSpec) chromosomeSpec;

		final var minValue = doubleChromosomeSpec.minValue();

		final var maxValue = doubleChromosomeSpec.maxValue();

		final var distribution = doubleChromosomeSpec.distribution();

		final Supplier<Double> generator = DistributionUtils

				.distributionValueSupplier(randomGenerator, minValue, maxValue, distribution);

		double[] values = new double[doubleChromosomeSpec.size()];

		for (int i = 0; i < doubleChromosomeSpec.size(); i++) {

			values[i] = generator.get();

		}

		return new DoubleChromosome(doubleChromosomeSpec.size(),

				doubleChromosomeSpec.minValue(),

				doubleChromosomeSpec.maxValue(),

				values);

	}

}

Active mutators

• CONDITIONALS_BOUNDARY
• CONSTRUCTOR_CALLS
• EMPTY_RETURNS
• EXPERIMENTAL_ARGUMENT_PROPAGATION
• EXPERIMENTAL_BIG_DECIMAL
• EXPERIMENTAL_BIG_INTEGER
• EXPERIMENTAL_MEMBER_VARIABLE
• EXPERIMENTAL_NAKED_RECEIVER
• EXPERIMENTAL_REMOVE_SWITCH_MUTATOR_[0-99]
• EXPERIMENTAL_SWITCH
• FALSE_RETURNS
• INCREMENTS
• INLINE_CONSTS
• INVERT_NEGS
• MATH
• NEGATE_CONDITIONALS
• NON_VOID_METHOD_CALLS
• NULL_RETURNS
• PRIMITIVE_RETURNS
• REMOVE_CONDITIONALS_EQUAL_ELSE
• REMOVE_CONDITIONALS_EQUAL_IF
• REMOVE_CONDITIONALS_ORDER_ELSE
• REMOVE_CONDITIONALS_ORDER_IF
• REMOVE_INCREMENTS
• TRUE_RETURNS
• VOID_METHOD_CALLS

Tests examined

• net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest]/[method:generateTest()] (6 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest]/[method:canHandleMissingParameter()] (0 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.DoubleChromosomeFactoryTest]/[method:canHandleTest()] (0 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest]/[method:nullChromosomeSpec()] (0 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest]/[method:simple()] (0 ms)
• net.bmahe.genetics4j.core.util.GenotypeGeneratorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.util.GenotypeGeneratorTest]/[method:constructorArgsPresent()] (1 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest]/[method:bitChromosomeSpec()] (0 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest]/[method:unknownChromosomeSpec()] (1 ms)
• net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.chromosomes.factory.ChromosomeFactoryProviderTest]/[method:intChromosomeSpec()] (0 ms)
• net.bmahe.genetics4j.core.util.GenotypeGeneratorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.util.GenotypeGeneratorTest]/[method:usingCustomGenerator()] (2 ms)
• net.bmahe.genetics4j.core.util.GenotypeGeneratorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.util.GenotypeGeneratorTest]/[method:usingDefaultGenerator()] (2 ms)
• net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:ctorNoSurvivorSelector()] (1 ms)
• net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:ctorNoOffspringSelector()] (1 ms)
• net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:ctorNoElitismSpec()] (2 ms)
• net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest]/[method:selectMaximize()] (1 ms)
• net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest]/[method:selectMaximizing()] (2 ms)
• net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] (1 ms)
• net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest]/[method:selectMinimize()] (2 ms)
• net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:atLeastSpecified()] (2 ms)
• net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.RouletteWheelSelectionPolicyHandlerTest]/[method:selectMinimizing()] (4 ms)
• net.bmahe.genetics4j.core.selection.RandomSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.RandomSelectionPolicyHandlerTest]/[method:select()] (15 ms)
• net.bmahe.genetics4j.core.selection.MultiTournamentsSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.MultiTournamentsSelectionPolicyHandlerTest]/[method:selectMaxThenMin()] (4 ms)
• net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest]/[method:selectMinimize()] (7 ms)
• net.bmahe.genetics4j.core.evaluation.FitnessEvaluatorVirtualThreadTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.evaluation.FitnessEvaluatorVirtualThreadTest]/[method:virtualThreadFactory()] (5 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evaluateOnceWithDifferentGenerations()] (3 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:systemConstruction()] (20 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evaluateOnce()] (4 ms)
• net.bmahe.genetics4j.core.mutation.SupersimpleTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.mutation.SupersimpleTest]/[method:simple()] (6 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithImmediateTermination()] (31 ms)
• net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.ProportionalTournamentSelectionPolicyHandlerTest]/[method:selectMaximize()] (91 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithIntChromosome()] (12 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithBitChromosome()] (15 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:evolveWithPostEvaluationProcessor()] (35 ms)
• net.bmahe.genetics4j.core.EASystemTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.EASystemTest]/[method:getterMethods()] (430 ms)