/* $Id: CrInvalidPseudoStateTrigger.java 17849 2010-01-12 19:50:34Z linus $
 *****************************************************************************
 * Copyright (c) 2009 Contributors - see below
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    maurelio1234
 *****************************************************************************
 *
 * Some portions of this file was previously release using the BSD License:
 */

// Copyright (c) 2003-2007 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
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// 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
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package org.argouml.uml.cognitive.critics;

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

import org.argouml.cognitive.Designer;
import org.argouml.model.Model;
import org.argouml.uml.cognitive.UMLDecision;

/**
 * UML 1.5 Well-formedness rule [5] for Transition.
 *
 * Well-formedness rule [5] for Transition. See page 140 of UML 1.4
 * Semantics. OMG document UML 1.4.2 formal/04-07-02.
 *
 * @author pepargouml@yahoo.es
 */
public class CrInvalidPseudoStateTrigger extends CrUML {

    /**
     * The constructor.
     */
    public CrInvalidPseudoStateTrigger() {
        setupHeadAndDesc();
        addSupportedDecision(UMLDecision.STATE_MACHINES);
        addTrigger("trigger");
    }

    /*
     * @see org.argouml.uml.cognitive.critics.CrUML#predicate2(java.lang.Object,
     *      org.argouml.cognitive.Designer)
     */
    public boolean predicate2(Object dm, Designer dsgr) {
        if (!(Model.getFacade().isATransition(dm))) return NO_PROBLEM;
        Object tr = dm;
        Object t = Model.getFacade().getTrigger(tr);
        Object sv = Model.getFacade().getSource(tr);
        if (!(Model.getFacade().isAPseudostate(sv))) return NO_PROBLEM;
        Object k = Model.getFacade().getKind(sv);
        //Forks have their own outgoing transitions critic
        if (Model.getFacade().
                equalsPseudostateKind(k,
                        Model.getPseudostateKind().getFork()))
            return NO_PROBLEM;
        boolean hasTrigger =
                (t != null && Model.getFacade().getName(t) != null
                && Model.getFacade().getName(t).length() > 0);
        if (hasTrigger) return PROBLEM_FOUND;
        return NO_PROBLEM;
    }

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