content: // ===============================================================================
  // Authors: AFRL/RQQD
  // Organization: Air Force Research Laboratory, Aerospace Systems Directorate, Power and Control Division
  // 
  // Copyright (c) 2017 Government of the United State of America, as represented by
  // the Secretary of the Air Force.  No copyright is claimed in the United States under
  // Title 17, U.S. Code.  All Other Rights Reserved.
  // ===============================================================================
  
  /*
   * Copyright (c) 2005 FlexDock Development Team. All rights reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy of
   * this software and associated documentation files (the "Software"), to deal in the
   * Software without restriction, including without limitation the rights to use,
   * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
   * to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
   * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
   * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
   * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE.
   */
  package org.flexdock.perspective.persist.xml;
  
  import org.flexdock.docking.Dockable;
  import org.flexdock.docking.state.DockingState;
  import org.flexdock.docking.state.FloatingGroup;
  import org.flexdock.docking.state.LayoutNode;
  import org.flexdock.perspective.Layout;
  import org.w3c.dom.Document;
  import org.w3c.dom.Element;
  import org.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  
  /**
   * Created on 2005-06-03
   *
   * @author <a href="mailto:mati@sz.home.pl">Mateusz Szczap</a>
   * @version $Id: LayoutSerializer.java,v 1.11 2005-07-06 18:10:48 winnetou25 Exp $
   */
  public class LayoutSerializer implements ISerializer {
  
      /**
       * @see org.flexdock.perspective.persist.xml.ISerializer#serialize(org.w3c.dom.Document, java.lang.Object)
       */
      public Element serialize(Document document, Object object) {
          Layout layout = (Layout) object;
  
          Element layoutElement = document.createElement(PersistenceConstants.LAYOUT_ELEMENT_NAME);
  
          Dockable[] dockables = layout.getDockables();
          ISerializer dockingStateSerializer = SerializerRegistry.getSerializer(DockingState.class);
          for (int i = 0; i < dockables.length; i++) {
              Dockable dockable = dockables[i];
              DockingState dockingState = layout.getDockingState(dockable);
              Element dockingStateElement = dockingStateSerializer.serialize(document, dockingState);
              layoutElement.appendChild(dockingStateElement);
          }
  
          ISerializer floatingGroupSerializer = SerializerRegistry.getSerializer(FloatingGroup.class);
          String[] floatingGroupIds = layout.getFloatingGroupIds();
          for (int i = 0; i < floatingGroupIds.length; i++) {
              String floatingGroupId = floatingGroupIds[i];
              FloatingGroup floatingGroup = layout.getGroup(floatingGroupId);
              Element floatingGroupElement = floatingGroupSerializer.serialize(document, floatingGroup);
              layoutElement.appendChild(floatingGroupElement);
          }
  
          LayoutNode layoutNode = layout.getRestorationLayout();
          //TODO should we nest restoration layout in Restoration node?
          if (layoutNode != null) {
              ISerializer layoutNodeSerializer = SerializerRegistry.getSerializer(LayoutNode.class);
              Element layoutNodeElement = layoutNodeSerializer.serialize(document, layoutNode);
              layoutElement.appendChild(layoutNodeElement);
          }
  
          return layoutElement;
      }
  
      public Object deserialize(Element element) {
          Layout layout = new Layout();
  
          ISerializer dockingStateSerializer = SerializerRegistry.getSerializer(DockingState.class);
          NodeList dockingStateNodeList = element.getElementsByTagName(PersistenceConstants.DOCKING_STATE_ELEMENT_NAME);
          for (int i = 0; i < dockingStateNodeList.getLength(); i++) {
              Node node = dockingStateNodeList.item(i);
              if (node instanceof Element) {
                  Element dockingStateElement = (Element) node;
                  DockingState dockingState = (DockingState) dockingStateSerializer.deserialize(dockingStateElement);
                  String dockableId = dockingState.getDockableId();
                  layout.setDockingState(dockableId, dockingState);
              }
          }
  
          ISerializer floatingGroupsSerializer = SerializerRegistry.getSerializer(FloatingGroup.class);
          NodeList floatingGroupsNodeList = element.getElementsByTagName(PersistenceConstants.FLOATING_GROUP_ELEMENT_NAME);
          for (int i=0; i<floatingGroupsNodeList.getLength(); i++) {
              Node floatingGroupNode = floatingGroupsNodeList.item(i);
              if (floatingGroupNode instanceof Element) {
                  Element floatingGroupElement = (Element) floatingGroupNode;
                  FloatingGroup floatingGroup = (FloatingGroup) floatingGroupsSerializer.deserialize(floatingGroupElement);
                  layout.addFloatingGroup(floatingGroup);
              }
          }
  
          ISerializer layoutNodeSerializer = SerializerRegistry.getSerializer(LayoutNode.class);
  
          NodeList dockingPortNodeList = element.getElementsByTagName(PersistenceConstants.DOCKING_PORT_NODE_ELEMENT_NAME);
          if (dockingPortNodeList.getLength() > 0 && dockingPortNodeList.item(0) instanceof Element) {
              Element layoutNodeElement = (Element) dockingPortNodeList.item(0);
              LayoutNode restorationLayout = (LayoutNode) layoutNodeSerializer.deserialize(layoutNodeElement);
              layout.setRestorationLayout(restorationLayout);
          }
  
          return layout;
      }
  
  }
  