Package org.structr.websocket.command

Source Code of org.structr.websocket.command.WrapContentCommand

/**
* Copyright (C) 2010-2014 Morgner UG (haftungsbeschränkt)
*
* This file is part of Structr <http://structr.org>.
*
* Structr is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Structr is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Structr.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.websocket.command;

import java.util.Map;
import org.structr.web.entity.dom.DOMNode;
import org.structr.websocket.StructrWebSocket;
import org.structr.websocket.message.MessageBuilder;
import org.structr.websocket.message.WebSocketMessage;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;

/**
* Wrap a content node in a new DOM element
*
* @author Axel Morgner
*/
public class WrapContentCommand extends AbstractCommand {

  //private static final Logger logger = Logger.getLogger(WrapContentCommand.class.getName());

  static {
   
    StructrWebSocket.addCommand(WrapContentCommand.class);
  }
 
  @Override
  public void processMessage(WebSocketMessage webSocketData) {

    final Map<String, Object> nodeData = webSocketData.getNodeData();
    final String parentId              = (String) nodeData.get("parentId");
    final String pageId                = webSocketData.getPageId();
   
    nodeData.remove("parentId");

    if (pageId != null) {

      // check for parent ID before creating any nodes
      if (parentId == null) {
   
        getWebSocket().send(MessageBuilder.status().code(422).message("Cannot add node without parentId").build(), true);   
        return;
      }

      // check if content node with given ID exists
      final DOMNode contentNode = getDOMNode(parentId);
      if (contentNode == null) {
   
        getWebSocket().send(MessageBuilder.status().code(404).message("Parent node not found").build(), true);   
        return;
      }
     
      final Document document = getPage(pageId);
      if (document != null) {

        final String tagName  = (String) nodeData.get("tagName");
        nodeData.remove("tagName");
       
        final DOMNode parentNode = (DOMNode) contentNode.getParentNode();

       
        try {

          DOMNode elementNode = null;
          if (tagName != null && !tagName.isEmpty()) {

            elementNode = (DOMNode) document.createElement(tagName);

          }

          // append new node to parent parent node
          if (elementNode != null) {

            parentNode.appendChild(elementNode);

          }
         
          // append new node to parent parent node
          if (elementNode != null) {

            // append content node to new node
            elementNode.appendChild(contentNode);

          }

        } catch (DOMException dex) {
           
          // send DOM exception
          getWebSocket().send(MessageBuilder.status().code(422).message(dex.getMessage()).build(), true);   
         
        }
       
      } else {
   
        getWebSocket().send(MessageBuilder.status().code(404).message("Page not found").build(), true);   
      }
     
    } else {
   
      getWebSocket().send(MessageBuilder.status().code(422).message("Cannot create node without pageId").build(), true);   
    }
  }

  @Override
  public String getCommand() {
    return "WRAP_CONTENT";
  }

}
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