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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.AuthorVo;
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 author list.
25   *
26   * @version $Revision: 1.1 $
27   * @author  Michael Meyling
28   */
29  public class AuthorHandler extends AbstractSimpleHandler {
30  
31       /** Author. */
32      private AuthorVo author;
33  
34      /** Email address of one author. */
35      private String email;
36  
37      /** Parses the name of the author. */
38      private final LatexHandler authorNameHandler;
39  
40  
41      /**
42       * Handles list of authors.
43       *
44       * @param   handler Parent handler.
45       */
46      public AuthorHandler(final AbstractSimpleHandler handler) {
47          super(handler, "AUTHOR");
48          authorNameHandler = new LatexHandler(this, "NAME");
49      }
50  
51      public final void init() {
52          author = null;
53          email = null;
54      }
55  
56      /**
57       * Get author.
58       *
59       * @return  Author.
60       */
61      public final AuthorVo getAuthor() {
62          return author;
63      }
64  
65      public final void startElement(final String name, final SimpleAttributes attributes)
66              throws XmlSyntaxException {
67          if (getStartTag().equals(name)) {
68              email = attributes.getString("email");
69          } else if (authorNameHandler.getStartTag().equals(name)) {
70              changeHandler(authorNameHandler, name, attributes);
71          } else {
72              throw XmlSyntaxException.createUnexpectedTagException(name);
73          }
74      }
75  
76      public final void endElement(final String name) throws XmlSyntaxException {
77          if (getStartTag().equals(name)) {
78              // nothing to do
79          } else if (authorNameHandler.getStartTag().equals(name)) {
80              author = new AuthorVo(authorNameHandler.getLatex(), email);
81          } else {
82              throw XmlSyntaxException.createUnexpectedTagException(name);
83          }
84      }
85  }