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   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
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  package org.apache.cayenne.modeler.graph.extension;
  
  import java.awt.geom.Rectangle2D;
  import java.util.Hashtable;
  import java.util.Map;
  
  import org.apache.cayenne.configuration.xml.NamespaceAwareNestedTagHandler;
  import org.jgraph.graph.GraphConstants;
  import org.xml.sax.Attributes;
  import org.xml.sax.SAXException;
  
  /**
   * @since 4.1
   */
  class EntityHandler extends NamespaceAwareNestedTagHandler {
  
      static final String ENTITY_TAG = "entity";
  
      GraphHandler graphHandler;
  
      public EntityHandler(GraphHandler parentHandler) {
          super(parentHandler);
          this.graphHandler = parentHandler;
      }
  
      @Override
      protected boolean processElement(String namespaceURI, String localName, Attributes attributes) throws SAXException {
          switch (localName) {
              case ENTITY_TAG:
                  String name = attributes.getValue("name");
                  Map<String, Object> props = new Hashtable<>();
                  GraphConstants.setBounds(props,
                          new Rectangle2D.Double(
                                  Double.valueOf(attributes.getValue("x")),
                                  Double.valueOf(attributes.getValue("y")),
                                  Double.valueOf(attributes.getValue("width")),
                                  Double.valueOf(attributes.getValue("height"))
                          ));
                  graphHandler.propertiesMap.put(name, props);
                  return true;
          }
          return false;
      }
  }
  