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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.action;
  
  import org.apache.cayenne.configuration.ConfigurationNameMapper;
  import org.apache.cayenne.configuration.ConfigurationNode;
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.configuration.DataMapLoader;
  import org.apache.cayenne.dbsync.naming.NameBuilder;
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.pref.FSPath;
  import org.apache.cayenne.modeler.util.CayenneAction;
  import org.apache.cayenne.modeler.util.FileFilters;
  import org.apache.cayenne.resource.Resource;
  import org.apache.cayenne.resource.URLResource;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.swing.*;
  import java.awt.*;
  import java.awt.event.ActionEvent;
  import java.io.File;
  import java.net.URL;
  
  /**
   * Modeler action that imports a DataMap into a project from an arbitrary
   * location.
   *
   * @since 1.1
   */
  public class ImportDataMapAction extends CayenneAction {
  
      private static Logger logObj = LoggerFactory.getLogger(ImportDataMapAction.class);
  
      private ConfigurationNameMapper nameMapper;
  
      public ImportDataMapAction(Application application, ConfigurationNameMapper nameMapper) {
          super(getActionName(), application);
          this.nameMapper = nameMapper;
      }
  
      public static String getActionName() {
          return "Import DataMap";
      }
  
      public void performAction(ActionEvent e) {
          importDataMap();
      }
  
      protected void importDataMap() {
          File dataMapFile = selectDataMap(Application.getFrame());
          if (dataMapFile == null) {
              return;
          }
  
          DataMap newMap;
  
          try {
              URL url = dataMapFile.toURI().toURL();
              DataMapLoader loader = application.getInjector().getInstance(DataMapLoader.class);
              newMap = loader.load(new URLResource(url));
  
              ConfigurationNode root = getProjectController().getProject().getRootNode();
              newMap.setName(NameBuilder
                      .builder(newMap, root)
                      .baseName(newMap.getName())
                      .name());
  
              Resource baseResource = ((DataChannelDescriptor) root).getConfigurationSource();
  
              if (baseResource != null) {
                  Resource dataMapResource = baseResource.getRelativeResource(nameMapper.configurationLocation(newMap));
                  newMap.setConfigurationSource(dataMapResource);
              }
  
              getProjectController().addDataMap(this, newMap);
          } catch (Exception ex) {
              logObj.info("Error importing DataMap.", ex);
              JOptionPane.showMessageDialog(Application.getFrame(), "Error reading DataMap: " + ex.getMessage(),
                      "Can't Open DataMap", JOptionPane.OK_OPTION);
          }
      }
  
      protected File selectDataMap(Frame f) {
  
          // find start directory in preferences
          FSPath lastDir = getApplication().getFrameController().getLastDirectory();
  
          // configure dialog
          JFileChooser chooser = new JFileChooser();
          chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
          lastDir.updateChooser(chooser);
  
          chooser.addChoosableFileFilter(FileFilters.getDataMapFilter());
  
          int status = chooser.showDialog(f, "Select DataMap");
          if (status == JFileChooser.APPROVE_OPTION) {
              File file = chooser.getSelectedFile();
  
              // save to preferences...
              lastDir.updateFromChooser(chooser);
  
              return file;
          }
  
          return null;
      }
  }
  