/* $Id: CrAssocNameConflict.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) 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

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 // UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 package org.argouml.uml.cognitive.critics;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.Set;

 import org.argouml.cognitive.Critic;

 import org.argouml.cognitive.Designer;

 import org.argouml.cognitive.ListSet;

 import org.argouml.cognitive.ToDoItem;

 import org.argouml.model.Model;

 import org.argouml.uml.cognitive.UMLDecision;

 import org.argouml.uml.cognitive.UMLToDoItem;

 /**

  * Well-formedness rule [2] for Namespace. See section 2.5.3.26 of

  * UML 1.4 spec.  Rule [1] is checked by CrNameConfusion.

  * 

  * Well-formedness rule [1] for Namespace. See page 62 of UML 1.4

  * Semantics. OMG document UML 1.4.2 formal/04-07-02.

  * 

  * @author mkl

  */

 public class CrAssocNameConflict extends CrUML {

     /**

      * The constructor.

      * 

      */

     public CrAssocNameConflict() {

         setupHeadAndDesc();

         addSupportedDecision(UMLDecision.NAMING);

         setKnowledgeTypes(Critic.KT_SYNTAX);

         // no good trigger

     }

     /*

      * @see org.argouml.uml.cognitive.critics.CrUML#predicate2(

      *      java.lang.Object, org.argouml.cognitive.Designer)

      */

     public boolean predicate2(Object dm, Designer dsgr) {

         return computeOffenders(dm).size() > 1;

     }

     /*

      * @see org.argouml.cognitive.critics.Critic#toDoItem( java.lang.Object,

      *      org.argouml.cognitive.Designer)

      */

     public ToDoItem toDoItem(Object dm, Designer dsgr) {

         ListSet offs = computeOffenders(dm);

         return new UMLToDoItem(this, offs, dsgr);

     }

     /**

      * @param dm

      *            the object to check

      * @return the set of offenders

      */

     protected ListSet computeOffenders(Object dm) {

         ListSet offenderResult = new ListSet();

         if (Model.getFacade().isANamespace(dm)) {

             HashMap<String, Object> names = new HashMap<String, Object>();

             for (Object name1Object : Model.getFacade().getOwnedElements(dm)) {

                 if (!Model.getFacade().isAAssociation(name1Object)) {

                     continue;

                 }

                 String name = Model.getFacade().getName(name1Object);

                 Collection typ1 = getAllTypes(name1Object);

                 if (name == null || "".equals(name)) {

                     continue;

                 }

                 if (names.containsKey(name)) {

                     Object offender = names.get(name);

                     Collection typ2 = getAllTypes(offender);

                     if (typ1.containsAll(typ2) && typ2.containsAll(typ1)) {

                         if (!offenderResult.contains(offender)) {

                             offenderResult.add(offender);

                         }

                         offenderResult.add(name1Object);

                     }

                 }

                 names.put(name, name1Object);

             }

         }

         return offenderResult;

     }

     /*

      * @see org.argouml.cognitive.Poster#stillValid(

      *      org.argouml.cognitive.ToDoItem, org.argouml.cognitive.Designer)

      */

     @Override

     public boolean stillValid(ToDoItem i, Designer dsgr) {

         if (!isActive()) {

             return false;

         }

         ListSet offs = i.getOffenders();

         // first element is e.g. the class, but we need to have its namespace

         // to recompute the offenders.

         Object f = offs.get(0);

         Object ns = Model.getFacade().getNamespace(f);

         if (!predicate(ns, dsgr)) {

             return false;

         }

         ListSet newOffs = computeOffenders(ns);

         boolean res = offs.equals(newOffs);

         return res;

     }

     public Collection getAllTypes(Object assoc) {

         Set list = new HashSet();

         if (assoc == null) {

             return list;

         }

         Collection assocEnds = Model.getFacade().getConnections(assoc);

         if (assocEnds == null) {

             return list;

         }

         for (Object element : assocEnds) {

             if (Model.getFacade().isAAssociationEnd(element)) {

                 Object type = Model.getFacade().getType(element);

                 list.add(type);

             }

         }

         return list;

     }

     /*

      * @see org.argouml.uml.cognitive.critics.CrUML#getCriticizedDesignMaterials()

      */

     public Set<Object> getCriticizedDesignMaterials() {

         Set<Object> ret = new HashSet<Object>();

         ret.add(Model.getMetaTypes().getNamespace());

         return ret;

     }

 }