Ptidej-v5.2-master/POM Tests/data/ArgoUML_0.28/src/org/argouml/uml/cognitive/critics/CrEmptyPackage.java
// $Id: CrEmptyPackage.java 15989 2008-11-08 16:21:10Z tfmorris $
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package org.argouml.uml.cognitive.critics;

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

import org.apache.log4j.Logger;
import org.argouml.cognitive.Designer;
import org.argouml.model.Model;
import org.argouml.uml.cognitive.UMLDecision;


/**
 * A critic to check for empty packages.
 *
 * @author Jason Robbins
 */

//TODO: different critic for packages consisting only
//of references to elements of other packages?

public class CrEmptyPackage extends CrUML {
    /**
     * Logger.
     */
    private static final Logger LOG = Logger.getLogger(CrEmptyPackage.class);

    /**
     * The constructor.
     */
    public CrEmptyPackage() {
        setupHeadAndDesc();
	addSupportedDecision(UMLDecision.MODULARITY);
	addTrigger("ownedElement");
    }

    @Override
    public boolean predicate2(Object dm, Designer dsgr) {
	if (!(Model.getFacade().isAPackage(dm))) {
	    return NO_PROBLEM;
	}
	Collection elems = Model.getFacade().getOwnedElements(dm);
	if (elems.size() == 0) {
//            LOG.debug("Found empty package " + Model.getFacade().toString(dm));
            return PROBLEM_FOUND;
        }
	return NO_PROBLEM;
    }

    /*
     * @see org.argouml.uml.cognitive.critics.CrUML#getCriticizedDesignMaterials()
     */
    @Override
    public Set<Object> getCriticizedDesignMaterials() {
        Set<Object> ret = new HashSet<Object>();
        ret.add(Model.getMetaTypes().getPackage());
        return ret;
    }
    
}

