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package jcgp.backend.modules.mutator;
import jcgp.backend.resources.Resources;
import jcgp.backend.resources.parameters.BooleanParameter;
import jcgp.backend.resources.parameters.IntegerParameter;
import jcgp.backend.resources.parameters.Parameter;
import jcgp.backend.resources.parameters.ParameterStatus;
/**
* Fixed point mutator
* <br><br>
* This operator uses the point mutator
* algorithm to mutate a user-defined fixed
* number of genes.
*
*
* @see PointMutator
* @author Eduardo Pedroni
*
*/
public class FixedPointMutator extends PointMutator {
private IntegerParameter geneMutated;
private BooleanParameter report;
/**
* Creates a new instance of FixedPointMutator.
*
* @param resources a reference to the experiment's resources.
*/
public FixedPointMutator(final Resources resources) {
geneMutated = new IntegerParameter(5, "Genes mutated", false, false) {
@Override
public void validate(Number newValue) {
if (newValue.intValue() <= 0) {
status = ParameterStatus.INVALID;
status.setDetails("At least 1 mutation must take place.");
} else if (newValue.intValue() > (resources.nodes() * (resources.arity() + 1)) + resources.outputs()) {
status = ParameterStatus.WARNING;
status.setDetails("More genes are mutated than there are genes in the genotype.");
} else {
status = ParameterStatus.VALID;
}
}
};
report = new BooleanParameter(false, "Report") {
@Override
public void validate(Boolean newValue) {
// blank
}
};
}
@Override
public Parameter<?>[] getLocalParameters() {
return new Parameter[] {geneMutated, report};
}
@Override
public String toString() {
return "Fixed point mutation";
}
}
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