content: /*****************************************************************
   *   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
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   ****************************************************************/
  
  package org.apache.cayenne.modeler.action;
  
  import java.awt.event.ActionEvent;
  
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.util.BrowserControl;
  import org.apache.cayenne.modeler.util.CayenneAction;
  import org.apache.cayenne.util.LocalizedStringsHandler;
  
  public class DocumentationAction extends CayenneAction {
  
      public static String getActionName() {
          return "Documentation";
      }
  
      public DocumentationAction(Application application) {
          super(getActionName(), application);
      }
  
      @Override
      public void performAction(ActionEvent e) {
          String url = "https://cayenne.apache.org/docs/";
          String majorVersion = getMajorVersion();
          if(!majorVersion.isEmpty()) {
              url = url + majorVersion + "/cayenne-guide/";
          }
          BrowserControl.displayURL(url);
      }
  
      private static String getMajorVersion() {
          String version = LocalizedStringsHandler.getString("cayenne.version");
          if(version.isEmpty()) {
              return "";
          }
          String majorVersion = version;
          int dash = version.indexOf('-');
          if (dash != -1) {
              // trim down snapshot part
              majorVersion = version.substring(0, dash);
          }
          // build a major version in form of 'X.Y'
          String[] components = majorVersion.split("\\.");
          switch (components.length) {
              case 0:
                  return "";
              case 1:
                  return components[0] + ".0";
              default:
                  return String.join(".", components[0], components[1]);
          }
      }
  }
  