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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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   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.modeler.dialog.datamap;
  
  import java.awt.Component;
  import javax.swing.WindowConstants;
  
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.map.event.EntityEvent;
  import org.apache.cayenne.modeler.ProjectController;
  import org.apache.cayenne.modeler.util.Comparators;
  import org.apache.cayenne.util.Util;
  
  /**
   */
  public class SuperclassUpdateController extends DefaultsPreferencesController {
  
      public static final String ALL_CONTROL = "Set/update superclass for all ObjEntities";
      public static final String UNINIT_CONTROL = "Do not override existing non-empty superclasses";
      
      protected DefaultsPreferencesView view;
  
      public SuperclassUpdateController(ProjectController mediator, DataMap dataMap) {
          super(mediator, dataMap);
      }
  
      /**
       * Creates and runs superclass update dialog.
       */
      public void startupAction() {
          view = new DefaultsPreferencesView(ALL_CONTROL, UNINIT_CONTROL);
          view.setTitle("Update Persistent objects Superclass");
          initController();
          
          view.pack();
          view.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
          view.setModal(true);
          makeCloseableOnEscape();
          centerView();
          view.setVisible(true);
      }
      
      public Component getView() {
          return this.view;
      }
      
      private void initController() {
          view.getUpdateButton().addActionListener(e -> updateSuperclass());
          view.getCancelButton().addActionListener(e -> view.dispose());
      }
  
      protected void updateSuperclass() {
          boolean doAll = isAllEntities();
          String defaultSuperclass = getSuperclass();
  
          dataMap.getObjEntities().stream()
                  .sorted(Comparators.getDataMapChildrenComparator()).forEach(entity -> {
                      if (doAll || Util.isEmptyString(getSuperClassName(entity))) {
                          if (!Util.nullSafeEquals(defaultSuperclass, getSuperClassName(entity))) {
                              setSuperClassName(entity, defaultSuperclass);
  
                              // any way to batch events, a big change will flood the app with
                              // entity events..?
                              mediator.fireDbEntityEvent(new EntityEvent(this, entity));
                          }
                      }
                  });
  
          view.dispose();
      }
  
      protected String getSuperclass() {
          return dataMap.getDefaultSuperclass();
      }
  
      protected String getSuperClassName(ObjEntity entity) {
          return entity.getSuperClassName();
      }
  
      protected void setSuperClassName(ObjEntity entity, String superClassName) {
          entity.setSuperClassName(superClassName);
      }
  }
  