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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.ImportListVo;
19  import org.qedeq.kernel.se.dto.module.ImportVo;
20  import org.qedeq.kernel.xml.common.XmlSyntaxException;
21  import org.qedeq.kernel.xml.handler.common.AbstractSimpleHandler;
22  import org.qedeq.kernel.xml.handler.common.SimpleAttributes;
23  
24  
25  /**
26   * Parse author list.
27   *
28   * @version $Revision: 1.1 $
29   * @author  Michael Meyling
30   */
31  public class ImportListHandler extends AbstractSimpleHandler {
32  
33      /** Value object with list of all module imports. */
34      private ImportListVo list;
35  
36      /** Handler for a single module specification. */
37      private final SpecificationHandler specificationHandler;
38  
39      /** Label for a single module. */
40      private String label;
41  
42  
43      /**
44       * Handles list of imports.
45       *
46       * @param   handler Parent handler.
47       */
48      public ImportListHandler(final AbstractSimpleHandler handler) {
49          super(handler, "IMPORTS");
50          specificationHandler = new SpecificationHandler(this);
51      }
52  
53      public final void init() {
54          list = null;
55      }
56  
57      /**
58       * Get parsed result.
59       *
60       * @return  Location list.
61       */
62      public final ImportListVo getImportList() {
63          return list;
64      }
65  
66      public final void startElement(final String name, final SimpleAttributes attributes)
67              throws XmlSyntaxException {
68          if (getStartTag().equals(name)) {
69              list = new ImportListVo();
70          } else if ("IMPORT".equals(name)) {
71              label = attributes.getString("label");
72          } else if (specificationHandler.getStartTag().equals(name)) {
73              changeHandler(specificationHandler, name, attributes);
74          } else {
75              throw XmlSyntaxException.createUnexpectedTagException(name);
76          }
77      }
78  
79      public final void endElement(final String name) throws XmlSyntaxException {
80          if (getStartTag().equals(name)) {
81              // nothing to do
82          } else if (specificationHandler.getStartTag().equals(name)) {
83              // nothing to do
84          } else if ("IMPORT".equals(name)) {
85              list.add(new ImportVo(label, specificationHandler.getSpecification()));
86          } else {
87              throw XmlSyntaxException.createUnexpectedTagException(name);
88          }
89      }
90  }