GoNamespaceToClassifierAndPackage.java example

Explorer
LEADT-master
// $Id: GoNamespaceToClassifierAndPackage.java 13747 2007-11-11 08:17:50Z tfmorris $
// Copyright (c) 1996-2006 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies.  This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason.  IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
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package org.argouml.ui.explorer.rules;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.argouml.i18n.Translator;
import org.argouml.model.Model;

/**
 * Rule for Namespace->Classifer or Package.
 * Generates only package and classifier children from a namespace parent.
 *
 * @since 0.15.2
 */
public class GoNamespaceToClassifierAndPackage
    extends AbstractPerspectiveRule {

    /*
     * @see org.argouml.ui.explorer.rules.PerspectiveRule#getRuleName()
     */
    public String getRuleName() {
        return Translator.localize("misc.namespace.classifer-or-package");
    }

    /*
     * @see org.argouml.ui.explorer.rules.PerspectiveRule#getChildren(java.lang.Object)
     */
    public Collection getChildren(Object parent) {
        if (!Model.getFacade().isANamespace(parent)) {
            return Collections.EMPTY_SET;
        }

        Iterator elements =
            Model.getFacade().getOwnedElements(parent).iterator();
        List result = new ArrayList();

        while (elements.hasNext()) {
            Object element = elements.next();
            if (Model.getFacade().isAPackage(element)
		    || Model.getFacade().isAClassifier(element)) {
		result.add(element);
            }
        }

        return result;
    }

    /*
     * @see org.argouml.ui.explorer.rules.PerspectiveRule#getDependencies(java.lang.Object)
     */
    public Set getDependencies(Object parent) {
        if (Model.getFacade().isANamespace(parent)) {
	    Set set = new HashSet();
	    set.add(parent);
	    return set;
	}
	return Collections.EMPTY_SET;
    }
}