/** * Unmarshall a Genotype instance from a given XML Element representation. Its population of * Chromosomes will be unmarshalled from the Chromosome sub-elements. * * @param a_activeConfiguration the current active Configuration object that is to be used during * construction of the Genotype and Chromosome instances * @param a_xmlElement the XML Element representation of the Genotype * @return a new Genotype instance, complete with a population of Chromosomes, setup with the data * from the XML Element representation * @throws ImproperXMLException if the given Element is improperly structured or missing data * @throws InvalidConfigurationException if the given Configuration is in an inconsistent state * @throws UnsupportedRepresentationException if the actively configured Gene implementation does * not support the string representation of the alleles used in the given XML document * @throws GeneCreationException if there is a problem creating or populating a Gene instance * @author Neil Rotstan * @author Klaus Meffert * @since 1.0 */ public static Genotype getGenotypeFromElement( Configuration a_activeConfiguration, Element a_xmlElement) throws ImproperXMLException, InvalidConfigurationException, UnsupportedRepresentationException, GeneCreationException { // Sanity check. Make sure the XML element isn't null and that it // actually represents a genotype. if (a_xmlElement == null || !(a_xmlElement.getTagName().equals(GENOTYPE_TAG))) { throw new ImproperXMLException( "Unable to build Genotype instance from XML Element: " + "given Element is not a 'genotype' element."); } // Fetch all of the nested chromosome elements and convert them // into Chromosome instances. // ------------------------------------------------------------ NodeList chromosomes = a_xmlElement.getElementsByTagName(CHROMOSOME_TAG); int numChromosomes = chromosomes.getLength(); Population population = new Population(a_activeConfiguration, numChromosomes); for (int i = 0; i < numChromosomes; i++) { population.addChromosome( getChromosomeFromElement(a_activeConfiguration, (Element) chromosomes.item(i))); } // Construct a new Genotype with the chromosomes and return it. // ------------------------------------------------------------ return new Genotype(a_activeConfiguration, population); }