/**
* Executes the operation
*
* @param object An object containing an array of two solutions
* @return An object containing an array with the offSprings
* @throws JMException
*/
public Object execute(Object object) throws JMException {
Solution[] parents = (Solution[]) object;
Double crossoverProbability;
// if ((parents[0].getType() != SolutionType_.Permutation) ||
// (parents[1].getType() != SolutionType_.Permutation)) {
//
// Configuration.logger_.severe("TwoPointsCrossover.execute: the solutions " +
// "are not of the right type. The type should be 'Permutation', but " +
// parents[0].getType() + " and " +
// parents[1].getType() + " are obtained");
// } // if
crossoverProbability = (Double) getParameter("probability");
if (parents.length < 2) {
Configuration.logger_.severe("SBXCrossover.execute: operator needs two " + "parents");
Class cls = java.lang.String.class;
String name = cls.getName();
throw new JMException("Exception in " + name + ".execute()");
} else if (crossoverProbability == null) {
Configuration.logger_.severe("SBXCrossover.execute: probability not " + "specified");
Class cls = java.lang.String.class;
String name = cls.getName();
throw new JMException("Exception in " + name + ".execute()");
}
Solution[] offspring = doCrossover(crossoverProbability.doubleValue(), parents[0], parents[1]);
return offspring;
} // execute
/**
* Obtains an instance of a <code>Variable</code> given its name.
*
* @param name The name of the class from which we want to obtain an instance object
* @throws JMException
*/
public static Variable getVariable(String name) throws JMException {
Variable variable = null;
String baseLocation = "jmetal.base.variable.";
try {
Class c = Class.forName(baseLocation + name);
variable = (Variable) c.newInstance();
return variable;
} catch (ClassNotFoundException e1) {
Configuration.logger_.severe("VariableFactory.getVariable: " + "ClassNotFoundException ");
Class cls = java.lang.String.class;
String name2 = cls.getName();
throw new JMException("Exception in " + name2 + ".getVariable()");
} catch (InstantiationException e2) {
Configuration.logger_.severe("VariableFactory.getVariable: " + "InstantiationException ");
Class cls = java.lang.String.class;
String name2 = cls.getName();
throw new JMException("Exception in " + name2 + ".getVariable()");
} catch (IllegalAccessException e3) {
Configuration.logger_.severe("VariableFactory.getVariable: " + "IllegalAccessException ");
Class cls = java.lang.String.class;
String name2 = cls.getName();
throw new JMException("Exception in " + name2 + ".getVariable()");
}
} // getVariable