/**
    * This file Copyright (c) 2012 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.admininterface;
  
  import java.lang.reflect.Constructor;
  import javax.jcr.RepositoryException;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.gui.dialog.Dialog;
  import info.magnolia.cms.gui.dialog.DialogFactory;
  
  /**
   * Provides a dialog configured in the repository.
   *
   * @version $Id$
   * @see DialogHandlerProvider
   * @see DialogHandlerManager
   * @see ConfiguredDialogHandlerManager
   */
  public class ConfiguredDialogHandlerProvider implements DialogHandlerProvider {
  
      private String id;
      private Content configNode;
      private Class<? extends DialogMVCHandler> dialogHandlerClass;
  
      public ConfiguredDialogHandlerProvider(String id, Content configNode, Class<? extends DialogMVCHandler> dialogHandlerClass) {
          this.id = id;
          this.configNode = configNode;
          this.dialogHandlerClass = dialogHandlerClass;
      }
  
      @Override
      public String getId() {
          return id;
      }
  
      @Override
      public Content getDialogConfigNode() {
          return configNode;
      }
  
      @Override
      public Dialog getDialog() throws RepositoryException {
          return DialogFactory.getDialogInstance(null, null, null, configNode);
      }
  
      @Override
      public DialogMVCHandler getDialogHandler(HttpServletRequest request, HttpServletResponse response) {
  
          try {
              Content configNode = this.configNode;
              if (configNode != null) {
                  try {
                      Constructor<? extends DialogMVCHandler> constructor = dialogHandlerClass.getConstructor(new Class[]{
                              String.class,
                              HttpServletRequest.class,
                              HttpServletResponse.class,
                              Content.class});
                      return constructor.newInstance(id, request, response, configNode);
                  } catch (NoSuchMethodException e) {
                      Constructor<? extends DialogMVCHandler> constructor = dialogHandlerClass.getConstructor(new Class[]{
                              String.class,
                              HttpServletRequest.class,
                              HttpServletResponse.class});
                      return constructor.newInstance(id, request, response);
                  }
             }
 
             Constructor<? extends DialogMVCHandler> constructor = dialogHandlerClass.getConstructor(new Class[]{
                     String.class,
                     HttpServletRequest.class,
                     HttpServletResponse.class});
             return constructor.newInstance(id, request, response);
         } catch (Exception e) {
             throw new InvalidDialogHandlerException(id, e);
         }
     }
 }