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1   /* This file is part of the project "Hilbert II" - http://www.qedeq.org" target="alexandria_uri">http://www.qedeq.org
2    *
3    * Copyright 2000-2014,  Michael Meyling <mime@qedeq.org>.
4    *
5    * "Hilbert II" is free software; you can redistribute
6    * it and/or modify it under the terms of the GNU General Public
7    * License as published by the Free Software Foundation; either
8    * version 2 of the License, or (at your option) any later version.
9    *
10   * This program is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13   * GNU General Public License for more details.
14   */
15  
16  package org.qedeq.kernel.xml.handler.module;
17  
18  import org.qedeq.kernel.se.dto.module.SubsectionListVo;
19  import org.qedeq.kernel.xml.common.XmlSyntaxException;
20  import org.qedeq.kernel.xml.handler.common.AbstractSimpleHandler;
21  import org.qedeq.kernel.xml.handler.common.SimpleAttributes;
22  
23  /**
24   * Parse subsection list.
25   *
26   * @version $Revision: 1.1 $
27   * @author  Michael Meyling
28   */
29  public class SubsectionListHandler extends AbstractSimpleHandler {
30  
31       /** List of subsections. */
32      private SubsectionListVo list;
33  
34      /** Parses an subsection. */
35      private final SubsectionHandler subsectionHandler;
36  
37      /** Handle single node of a section. */
38      private final NodeHandler nodeHandler;
39  
40  
41      /**
42       * Handles list of subsections.
43       *
44       * @param   handler Parent handler.
45       */
46      public SubsectionListHandler(final AbstractSimpleHandler handler) {
47          super(handler, "SUBSECTIONS");
48          subsectionHandler = new SubsectionHandler(this);
49          nodeHandler = new NodeHandler(this);
50      }
51  
52      public final void init() {
53          list = new SubsectionListVo();
54      }
55  
56      /**
57       * Get list of subsections.
58       *
59       * @return  Subsection list.
60       */
61      public final SubsectionListVo getSubsectionList() {
62          return list;
63      }
64  
65      public final void startElement(final String name, final SimpleAttributes attributes)
66              throws XmlSyntaxException {
67          if (getStartTag().equals(name)) {
68              // nothing to do
69          } else if (subsectionHandler.getStartTag().equals(name)) {
70              changeHandler(subsectionHandler, name, attributes);
71          } else if (nodeHandler.getStartTag().equals(name)) {
72              changeHandler(nodeHandler, name, attributes);
73          } else {
74              throw XmlSyntaxException.createUnexpectedTagException(name);
75          }
76      }
77  
78      public final void endElement(final String name) throws XmlSyntaxException {
79          if (getStartTag().equals(name)) {
80              // nothing to do
81          } else if (subsectionHandler.getStartTag().equals(name)) {
82              list.add(subsectionHandler.getSubsection());
83          } else if (nodeHandler.getStartTag().equals(name)) {
84              list.add(nodeHandler.getNode());
85          } else {
86              throw XmlSyntaxException.createUnexpectedTagException(name);
87          }
88      }
89  }