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  package org.apache.cayenne.modeler.action;
  
  import org.apache.cayenne.configuration.ConfigurationNode;
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.configuration.DataNodeDescriptor;
  import org.apache.cayenne.dbsync.naming.NameBuilder;
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.ProjectController;
  import org.apache.cayenne.modeler.undo.CreateDataMapUndoableEdit;
  import org.apache.cayenne.modeler.util.CayenneAction;
  
  import java.awt.event.ActionEvent;
  
  /**
   * Action that creates new DataMap in the project.
   */
  public class CreateDataMapAction extends CayenneAction {
  
      public static String getActionName() {
          return "Create DataMap";
      }
  
      public CreateDataMapAction(Application application) {
          super(getActionName(), application);
      }
  
      public String getIconName() {
          return "icon-datamap.png";
      }
  
      /** Calls addDataMap() or creates new data map if no data node selected. */
      public void createDataMap(DataMap map) {
          ProjectController mediator = getProjectController();
          mediator.addDataMap(this, map);
      }
  
      public void performAction(ActionEvent e) {
          ProjectController mediator = getProjectController();
  
          DataChannelDescriptor dataChannelDescriptor = (DataChannelDescriptor) mediator
                  .getProject()
                  .getRootNode();
  
          DataMap map = new DataMap();
          map.setName(NameBuilder.builder(map, dataChannelDescriptor).name());
          createDataMap(map);
  
          application.getUndoManager().addEdit(new CreateDataMapUndoableEdit(dataChannelDescriptor, map));
      }
  
      /**
       * Returns <code>true</code> if path contains a DataDomain object.
       */
      public boolean enableForPath(ConfigurationNode object) {
          if (object == null) {
              return false;
          }
  
          return ((DataNodeDescriptor) object).getDataChannelDescriptor() != null;
      }
  }
  