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1   /**
2    * Portions of this software was developed by employees of the National Institute
3    * of Standards and Technology (NIST), an agency of the Federal Government and is
4    * being made available as a public service. Pursuant to title 17 United States
5    * Code Section 105, works of NIST employees are not subject to copyright
6    * protection in the United States. This software may be subject to foreign
7    * copyright. Permission in the United States and in foreign countries, to the
8    * extent that NIST may hold copyright, to use, copy, modify, create derivative
9    * works, and distribute this software and its documentation without fee is hereby
10   * granted on a non-exclusive basis, provided that this notice and disclaimer
11   * of warranty appears in all copies.
12   *
13   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
14   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
15   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
16   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
17   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
18   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
19   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
20   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
21   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
22   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
23   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
24   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
25   */
26  
27  package gov.nist.secauto.decima.xml.schematron;
28  
29  import org.jdom2.Document;
30  import org.jdom2.Element;
31  import org.jdom2.Namespace;
32  
33  public class SchematronParser {
34    private static final Namespace NAMESPACE_SCHEMATRON = Namespace.getNamespace("http://purl.oclc.org/dsdl/schematron");
35  
36    /**
37     * Parses an ISO Schematron document, provided as a JDOM2 {@link Document}. As parts of the
38     * Schematron are parsed, the handler is called back for processing.
39     * 
40     * @param document
41     *          the document to parse
42     * @param handler
43     *          the handler to callback during parsing
44     */
45    public static void parse(Document document, SchematronHandler handler) {
46      Element root = document.getRootElement();
47  
48      for (Element pattern : root.getChildren("pattern", NAMESPACE_SCHEMATRON)) {
49        if (handler.handlePattern(pattern)) {
50          parsePattern(pattern, handler);
51        }
52      }
53    }
54  
55    private static void parsePattern(Element element, SchematronHandler handler) {
56  
57      for (Element rule : element.getChildren("rule", NAMESPACE_SCHEMATRON)) {
58        if (handler.handleRule(rule)) {
59          parseRule(rule, handler);
60        }
61      }
62    }
63  
64    private static void parseRule(Element element, SchematronHandler handler) {
65      for (Element child : element.getChildren()) {
66        if ("report".equals(child.getName())) {
67          handler.handleReport(child);
68        } else if ("assert".equals(child.getName())) {
69          handler.handleAssert(child);
70        }
71      }
72    }
73  }