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   *   Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  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
   *  with the License.  You may obtain a copy of the License at
   *
   *    https://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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   *  specific language governing permissions and limitations
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   ****************************************************************/
  package org.apache.cayenne.modeler.action;
  
  import org.apache.cayenne.dbsync.naming.NameBuilder;
  import org.apache.cayenne.map.CallbackMap;
  import org.apache.cayenne.map.LifecycleEvent;
  import org.apache.cayenne.map.event.MapEvent;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.editor.CallbackType;
  import org.apache.cayenne.modeler.event.CallbackMethodEvent;
  import org.apache.cayenne.modeler.undo.CreateCallbackMethodUndoableEdit;
  import org.apache.cayenne.modeler.util.CayenneAction;
  import org.apache.cayenne.util.Util;
  
  import java.awt.event.ActionEvent;
  
  /**
   * Action class for creating callback methods on ObjEntity
   */
  public class CreateCallbackMethodAction extends CayenneAction {
  
      /**
       * unique action name
       */
      public static final String ACTION_NAME = "Create callback method";
  
      /**
       * Constructor.
       *
       * @param actionName  unique action name
       * @param application Application instance
       */
      public CreateCallbackMethodAction(String actionName, Application application) {
          super(actionName, application);
      }
  
      /**
       * Constructor.
       *
       * @param application Application instance
       */
      public CreateCallbackMethodAction(Application application) {
          super(ACTION_NAME, application);
      }
  
      public static String getActionName() {
          return ACTION_NAME;
      }
  
      /**
       * @return CallbackMap instance where to create a method
       */
      public CallbackMap getCallbackMap() {
          return getProjectController().getCurrentObjEntity().getCallbackMap();
      }
  
      /**
       * @return icon file name for button
       */
      public String getIconName() {
          return "icon-create-method.png";
      }
  
      /**
       * performs adding new callback method
       *
       * @param e event
       */
      public final void performAction(ActionEvent e) {
          CallbackType callbackType = getProjectController().getCurrentCallbackType();
  
          String methodName = NameBuilder
                  .builderForCallbackMethod(getProjectController().getCurrentObjEntity())
                  .baseName(toMethodName(callbackType.getType()))
                  .name();
  
          createCallbackMethod(callbackType, methodName);
          application.getUndoManager().addEdit(
                  new CreateCallbackMethodUndoableEdit(
                          callbackType,
                          methodName));
      }
  
      public void createCallbackMethod(
              CallbackType callbackType,
              String methodName) {
          getCallbackMap().getCallbackDescriptor(callbackType.getType()).addCallbackMethod(methodName);
  
          CallbackMethodEvent ce = new CallbackMethodEvent(
                  this,
                  null,
                  methodName,
                  MapEvent.ADD);
  
          getProjectController().fireCallbackMethodEvent(ce);
      }
  
      private String toMethodName(LifecycleEvent event) {
          return "on" + Util.underscoredToJava(event.name(), true);
      }
  }
  
  