PartialMutationPolicyHandler.java

package net.bmahe.genetics4j.core.mutation;

import java.util.Arrays;
import java.util.Objects;

import org.apache.commons.lang3.Validate;

import net.bmahe.genetics4j.core.Genotype;
import net.bmahe.genetics4j.core.chromosomes.Chromosome;
import net.bmahe.genetics4j.core.spec.AbstractEAConfiguration;
import net.bmahe.genetics4j.core.spec.AbstractEAExecutionContext;
import net.bmahe.genetics4j.core.spec.mutation.MutationPolicy;
import net.bmahe.genetics4j.core.spec.mutation.PartialMutation;

public class PartialMutationPolicyHandler<T extends Comparable<T>> implements MutationPolicyHandler<T> {

	@Override
	public boolean canHandle(final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver,
			final MutationPolicy mutationPolicy) {
		Objects.requireNonNull(mutationPolicyHandlerResolver);
		Objects.requireNonNull(mutationPolicy);

		if (mutationPolicy instanceof PartialMutation == false) {
			return false;
		}

		final PartialMutation partialMutation = (PartialMutation) mutationPolicy;

		final MutationPolicy childMutationPolicy = partialMutation.mutationPolicy();
		return mutationPolicyHandlerResolver.canHandle(childMutationPolicy);
	}

	@Override
	public Mutator createMutator(final AbstractEAExecutionContext<T> eaExecutionContext,
			final AbstractEAConfiguration<T> eaConfiguration,
			final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver, final MutationPolicy mutationPolicy) {
		Objects.requireNonNull(eaExecutionContext);
		Objects.requireNonNull(eaConfiguration);
		Objects.requireNonNull(mutationPolicyHandlerResolver);
		Objects.requireNonNull(mutationPolicy);
		Validate.isInstanceOf(PartialMutation.class, mutationPolicy);

		final PartialMutation partialMutation = (PartialMutation) mutationPolicy;

		final int mutatedChromosomeIndex = partialMutation.chromosomeIndex();
		final MutationPolicy childMutationPolicy = partialMutation.mutationPolicy();
		final MutationPolicyHandler<T> mutationPolicyHandler = mutationPolicyHandlerResolver.resolve(childMutationPolicy);

		final Mutator childMutator = mutationPolicyHandler
				.createMutator(eaExecutionContext, eaConfiguration, mutationPolicyHandlerResolver, childMutationPolicy);

		return new Mutator() {

			@Override
			public Genotype mutate(final long generation, final Genotype original) {
				Validate.isTrue(generation >= 0);
				Objects.requireNonNull(original);

				final Chromosome[] chromosomes = Arrays.copyOf(original.getChromosomes(), original.getChromosomes().length);
				final Genotype mutated = childMutator.mutate(generation, original);

				chromosomes[mutatedChromosomeIndex] = mutated.getChromosome(mutatedChromosomeIndex);

				return new Genotype(chromosomes);
			}
		};
	}
}















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

Report generated by PIT 1.20.3

1		package net.bmahe.genetics4j.core.mutation;
2
3		import java.util.Arrays;
4		import java.util.Objects;
5
6		import org.apache.commons.lang3.Validate;
7
8		import net.bmahe.genetics4j.core.Genotype;
9		import net.bmahe.genetics4j.core.chromosomes.Chromosome;
10		import net.bmahe.genetics4j.core.spec.AbstractEAConfiguration;
11		import net.bmahe.genetics4j.core.spec.AbstractEAExecutionContext;
12		import net.bmahe.genetics4j.core.spec.mutation.MutationPolicy;
13		import net.bmahe.genetics4j.core.spec.mutation.PartialMutation;
14
15		public class PartialMutationPolicyHandler<T extends Comparable<T>> implements MutationPolicyHandler<T> {
16
17		@Override
18		public boolean canHandle(final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver,
19		final MutationPolicy mutationPolicy) {
20		Objects.requireNonNull(mutationPolicyHandlerResolver);
21		Objects.requireNonNull(mutationPolicy);
22
23	3 1. canHandle : negated conditional → NO_COVERAGE 2. canHandle : removed conditional - replaced equality check with true → NO_COVERAGE 3. canHandle : removed conditional - replaced equality check with false → NO_COVERAGE	if (mutationPolicy instanceof PartialMutation == false) {
24	2 1. canHandle : replaced boolean return with true for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::canHandle → NO_COVERAGE 2. canHandle : Substituted 0 with 1 → NO_COVERAGE	return false;
25		}
26
27		final PartialMutation partialMutation = (PartialMutation) mutationPolicy;
28
29	1 1. canHandle : removed call to net/bmahe/genetics4j/core/spec/mutation/PartialMutation::mutationPolicy → NO_COVERAGE	final MutationPolicy childMutationPolicy = partialMutation.mutationPolicy();
30	3 1. canHandle : removed call to net/bmahe/genetics4j/core/mutation/MutationPolicyHandlerResolver::canHandle → NO_COVERAGE 2. canHandle : replaced boolean return with false for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::canHandle → NO_COVERAGE 3. canHandle : replaced boolean return with true for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::canHandle → NO_COVERAGE	return mutationPolicyHandlerResolver.canHandle(childMutationPolicy);
31		}
32
33		@Override
34		public Mutator createMutator(final AbstractEAExecutionContext<T> eaExecutionContext,
35		final AbstractEAConfiguration<T> eaConfiguration,
36		final MutationPolicyHandlerResolver<T> mutationPolicyHandlerResolver, final MutationPolicy mutationPolicy) {
37		Objects.requireNonNull(eaExecutionContext);
38		Objects.requireNonNull(eaConfiguration);
39		Objects.requireNonNull(mutationPolicyHandlerResolver);
40		Objects.requireNonNull(mutationPolicy);
41		Validate.isInstanceOf(PartialMutation.class, mutationPolicy);
42
43		final PartialMutation partialMutation = (PartialMutation) mutationPolicy;
44
45	1 1. createMutator : removed call to net/bmahe/genetics4j/core/spec/mutation/PartialMutation::chromosomeIndex → NO_COVERAGE	final int mutatedChromosomeIndex = partialMutation.chromosomeIndex();
46	1 1. createMutator : removed call to net/bmahe/genetics4j/core/spec/mutation/PartialMutation::mutationPolicy → NO_COVERAGE	final MutationPolicy childMutationPolicy = partialMutation.mutationPolicy();
47	1 1. createMutator : removed call to net/bmahe/genetics4j/core/mutation/MutationPolicyHandlerResolver::resolve → NO_COVERAGE	final MutationPolicyHandler<T> mutationPolicyHandler = mutationPolicyHandlerResolver.resolve(childMutationPolicy);
48
49		final Mutator childMutator = mutationPolicyHandler
50	1 1. createMutator : removed call to net/bmahe/genetics4j/core/mutation/MutationPolicyHandler::createMutator → NO_COVERAGE	.createMutator(eaExecutionContext, eaConfiguration, mutationPolicyHandlerResolver, childMutationPolicy);
51
52	4 1. createMutator : removed call to net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler$1::<init> → NO_COVERAGE 2. <init> : Removed assignment to member variable val$childMutator → NO_COVERAGE 3. createMutator : replaced return value with null for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::createMutator → NO_COVERAGE 4. <init> : Removed assignment to member variable val$mutatedChromosomeIndex → NO_COVERAGE	return new Mutator() {
53
54		@Override
55		public Genotype mutate(final long generation, final Genotype original) {
56		Validate.isTrue(generation >= 0);
57		Objects.requireNonNull(original);
58
59	4 1. mutate : removed call to java/util/Arrays::copyOf → NO_COVERAGE 2. mutate : removed call to net/bmahe/genetics4j/core/Genotype::getChromosomes → NO_COVERAGE 3. mutate : removed call to net/bmahe/genetics4j/core/Genotype::getChromosomes → NO_COVERAGE 4. mutate : replaced call to java/util/Arrays::copyOf with argument → NO_COVERAGE	final Chromosome[] chromosomes = Arrays.copyOf(original.getChromosomes(), original.getChromosomes().length);
60	2 1. mutate : replaced call to net/bmahe/genetics4j/core/mutation/Mutator::mutate with argument → NO_COVERAGE 2. mutate : removed call to net/bmahe/genetics4j/core/mutation/Mutator::mutate → NO_COVERAGE	final Genotype mutated = childMutator.mutate(generation, original);
61
62	1 1. mutate : removed call to net/bmahe/genetics4j/core/Genotype::getChromosome → NO_COVERAGE	chromosomes[mutatedChromosomeIndex] = mutated.getChromosome(mutatedChromosomeIndex);
63
64	2 1. mutate : replaced return value with null for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler$1::mutate → NO_COVERAGE 2. mutate : removed call to net/bmahe/genetics4j/core/Genotype::<init> → NO_COVERAGE	return new Genotype(chromosomes);
65		}
66		};
67		}
68		}
		Mutations
23		1.1 Location : canHandle Killed by : none negated conditional → NO_COVERAGE 2.2 Location : canHandle Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE 3.3 Location : canHandle Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE
24		1.1 Location : canHandle Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::canHandle → NO_COVERAGE 2.2 Location : canHandle Killed by : none Substituted 0 with 1 → NO_COVERAGE
29		1.1 Location : canHandle Killed by : none removed call to net/bmahe/genetics4j/core/spec/mutation/PartialMutation::mutationPolicy → NO_COVERAGE
30		1.1 Location : canHandle Killed by : none removed call to net/bmahe/genetics4j/core/mutation/MutationPolicyHandlerResolver::canHandle → NO_COVERAGE 2.2 Location : canHandle Killed by : none replaced boolean return with false for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::canHandle → NO_COVERAGE 3.3 Location : canHandle Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::canHandle → NO_COVERAGE
45		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/spec/mutation/PartialMutation::chromosomeIndex → NO_COVERAGE
46		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/spec/mutation/PartialMutation::mutationPolicy → NO_COVERAGE
47		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/mutation/MutationPolicyHandlerResolver::resolve → NO_COVERAGE
50		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/mutation/MutationPolicyHandler::createMutator → NO_COVERAGE
52		1.1 Location : createMutator Killed by : none removed call to net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler$1::<init> → NO_COVERAGE 2.2 Location : <init> Killed by : none Removed assignment to member variable val$childMutator → NO_COVERAGE 3.3 Location : createMutator Killed by : none replaced return value with null for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler::createMutator → NO_COVERAGE 4.4 Location : <init> Killed by : none Removed assignment to member variable val$mutatedChromosomeIndex → NO_COVERAGE
59		1.1 Location : mutate Killed by : none removed call to java/util/Arrays::copyOf → NO_COVERAGE 2.2 Location : mutate Killed by : none removed call to net/bmahe/genetics4j/core/Genotype::getChromosomes → NO_COVERAGE 3.3 Location : mutate Killed by : none removed call to net/bmahe/genetics4j/core/Genotype::getChromosomes → NO_COVERAGE 4.4 Location : mutate Killed by : none replaced call to java/util/Arrays::copyOf with argument → NO_COVERAGE
60		1.1 Location : mutate Killed by : none replaced call to net/bmahe/genetics4j/core/mutation/Mutator::mutate with argument → NO_COVERAGE 2.2 Location : mutate Killed by : none removed call to net/bmahe/genetics4j/core/mutation/Mutator::mutate → NO_COVERAGE
62		1.1 Location : mutate Killed by : none removed call to net/bmahe/genetics4j/core/Genotype::getChromosome → NO_COVERAGE
64		1.1 Location : mutate Killed by : none replaced return value with null for net/bmahe/genetics4j/core/mutation/PartialMutationPolicyHandler$1::mutate → NO_COVERAGE 2.2 Location : mutate Killed by : none removed call to net/bmahe/genetics4j/core/Genotype::<init> → NO_COVERAGE

PartialMutationPolicyHandler.java

Mutations

Active mutators

Tests examined