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A simple node-relationship editor
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/** 
 * Copyright (C) 2010  Jorge J. Gomez-Sanz over original code from Ruben Fuentes
 * 
 *   Modifications over original code from jgraph.sourceforge.net
 * 
 * This file is part of the INGENME tool. INGENME is an open source meta-editor
 * which produces customized editors for user-defined modeling languages
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 3 of the License
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see 
 **/
 
package ingenias.editor.persistence;
import java.lang.reflect.*;
import javax.swing.tree.*;
import org.apache.xerces.parsers.DOMParser;
import org.xml.sax.InputSource;
import java.awt.Color;
import java.awt.Point;
import java.awt.Rectangle;
import java.io.OutputStreamWriter;
import java.io.*;
import javax.swing.tree.DefaultMutableTreeNode;
import java.util.*;
import java.util.Map;
import java.util.Hashtable;
import java.util.ArrayList;
import javax.xml.parsers.*;
import org.jgraph.JGraph;
import org.jgraph.graph.*;
import org.w3c.dom.*;
import org.w3c.dom.Document;
import org.w3c.dom.DOMImplementation;
import ingenias.editor.entities.*;
import ingenias.exception.*;
import ingenias.editor.cell.*;
import ingenias.editor.*;


public class GraphLoadImp2 extends GraphLoadImp2Abs
    implements GraphLoad {

  /**
   *  Constructor for the GraphLoad object
   */
  public GraphLoadImp2() {}


  // Convert a vertex represented by a GXL DOM node in a DefaultGraphCell.
  // ids contains the already processed vertex ids.

  protected DefaultGraphCell GXLVertex(String id, String type, ModelJGraph graph,
                                    ObjectManager om, RelationshipManager rm) {

    DefaultGraphCell vertex = null;

    ingenias.editor.entities.Entity en = om.getEntity(id, type);
    // if it is registered in the OM, then it is a diagram object
    if (en != null) {


   	if (en.getClass().equals(ingenias.editor.entities.NRNode.class))
	  return  new ingenias.editor.cell.NRNodeCell((ingenias.editor.entities.NRNode)en);

    } else {
    // If not, it is a relationship
      en = rm.getRelationship(id);
    if (en==null) return null;

    if (en instanceof ingenias.editor.entities.NREdge)
     return  new ingenias.editor.cell.NREdgeEdge((ingenias.editor.entities.NREdge)en);


    }

    return null;
  }


 
}