01 /* This file is part of the project "Hilbert II" - http://www.qedeq.org
02 *
03 * Copyright 2000-2013, Michael Meyling <mime@qedeq.org>.
04 *
05 * "Hilbert II" is free software; you can redistribute
06 * it and/or modify it under the terms of the GNU General Public
07 * License as published by the Free Software Foundation; either
08 * version 2 of the License, or (at your option) any later version.
09 *
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.ChangedRuleVo;
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 /**
25 * Parse a rule change.
26 *
27 * @author Michael Meyling
28 */
29 public class ChangedRuleHandler extends LatexListHandler {
30
31 /** Rule value object. */
32 private ChangedRuleVo rule;
33
34 /**
35 * Deals with definitions.
36 *
37 * @param handler Parent handler.
38 */
39 public ChangedRuleHandler(final AbstractSimpleHandler handler) {
40 super(handler, "CHANGED_RULE");
41 }
42
43 public final void init() {
44 super.init();
45 rule = null;
46 }
47
48 /**
49 * Get changed rule.
50 *
51 * @return Rule.
52 */
53 public final ChangedRuleVo getChangedRule() {
54 return rule;
55 }
56
57 public final void startElement(final String name, final SimpleAttributes attributes)
58 throws XmlSyntaxException {
59 if (getStartTag().equals(name)) {
60 rule = new ChangedRuleVo();
61 if (null != attributes.getString("name")) {
62 rule.setName(attributes.getString("name"));
63 } else {
64 throw XmlSyntaxException.createMissingAttributeException(name, "name");
65 }
66 if (null != attributes.getString("version")) {
67 rule.setVersion(attributes.getString("version"));
68 } else {
69 throw XmlSyntaxException.createMissingAttributeException(name, "version");
70 }
71 } else {
72 super.startElement(name, attributes);
73 }
74 }
75
76 public final void endElement(final String name) throws XmlSyntaxException {
77 if (getStartTag().equals(name)) {
78 rule.setDescription(getLatexList());
79 } else {
80 super.endElement(name);
81 }
82 }
83
84
85 }
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