1 | /* This file is part of the project "Hilbert II" - 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.base.module.Node; |
19 | import org.qedeq.kernel.se.dto.module.NodeVo; |
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 | * Handles node data. |
27 | * |
28 | * @author Michael Meyling |
29 | */ |
30 | public class NodeHandler extends AbstractSimpleHandler { |
31 | |
32 | /** Handler for node name. The node name is a visible, language specific node reference, |
33 | * e.g. "Axiom of Choice" or "is set". */ |
34 | private final LatexListHandler nameHandler; |
35 | |
36 | /** Handler for title. This is simply the title of this subsection. */ |
37 | private final LatexListHandler titleHandler; |
38 | |
39 | /** Handler for the formula preceding text. */ |
40 | private final LatexListHandler precedingHandler; |
41 | |
42 | /** Handler for the formula succeeding text. */ |
43 | private final LatexListHandler succeedingHandler; |
44 | |
45 | /** Handler for an axiom. */ |
46 | private final AxiomHandler axiomHandler; |
47 | |
48 | /** Handler for an initial predicate definition. */ |
49 | private final InitialPredicateDefinitionHandler initialPredicateDefinitionHandler; |
50 | |
51 | /** Handler for a predicate definition. */ |
52 | private final PredicateDefinitionHandler predicateDefinitionHandler; |
53 | |
54 | /** Handler for a function definition. */ |
55 | private final FunctionDefinitionHandler functionDefinitionHandler; |
56 | |
57 | /** Handler for a initial function definition. */ |
58 | private final InitialFunctionDefinitionHandler initialFunctionDefinitionHandler; |
59 | |
60 | /** Handler for a proposition. */ |
61 | private final PropositionHandler propositionHandler; |
62 | |
63 | /** Handler for a rule. */ |
64 | private final RuleHandler ruleHandler; |
65 | |
66 | /** Node value object. */ |
67 | private NodeVo node; |
68 | |
69 | |
70 | /** |
71 | * Constructor. |
72 | * |
73 | * @param handler Parent handler. |
74 | */ |
75 | public NodeHandler(final AbstractSimpleHandler handler) { |
76 | super(handler, "NODE"); |
77 | nameHandler = new LatexListHandler(this, "NAME"); |
78 | titleHandler = new LatexListHandler(this, "TITLE"); |
79 | precedingHandler = new LatexListHandler(this, "PRECEDING"); |
80 | succeedingHandler = new LatexListHandler(this, "SUCCEEDING"); |
81 | axiomHandler = new AxiomHandler(this); |
82 | initialPredicateDefinitionHandler = new InitialPredicateDefinitionHandler(this); |
83 | predicateDefinitionHandler = new PredicateDefinitionHandler(this); |
84 | functionDefinitionHandler = new FunctionDefinitionHandler(this); |
85 | initialFunctionDefinitionHandler = new InitialFunctionDefinitionHandler(this); |
86 | propositionHandler = new PropositionHandler(this); |
87 | ruleHandler = new RuleHandler(this); |
88 | } |
89 | |
90 | public final void init() { |
91 | node = null; |
92 | } |
93 | |
94 | /** |
95 | * Get node. |
96 | * |
97 | * @return Node. |
98 | */ |
99 | public final Node getNode() { |
100 | return node; |
101 | } |
102 | |
103 | public final void startElement(final String name, final SimpleAttributes attributes) |
104 | throws XmlSyntaxException { |
105 | if (getStartTag().equals(name)) { |
106 | node = new NodeVo(); |
107 | node.setId(attributes.getString("id")); |
108 | node.setLevel(attributes.getString("level")); |
109 | } else if (nameHandler.getStartTag().equals(name)) { |
110 | changeHandler(nameHandler, name, attributes); |
111 | } else if (titleHandler.getStartTag().equals(name)) { |
112 | changeHandler(titleHandler, name, attributes); |
113 | } else if (precedingHandler.getStartTag().equals(name)) { |
114 | changeHandler(precedingHandler, name, attributes); |
115 | } else if (succeedingHandler.getStartTag().equals(name)) { |
116 | changeHandler(succeedingHandler, name, attributes); |
117 | } else if (axiomHandler.getStartTag().equals(name)) { |
118 | changeHandler(axiomHandler, name, attributes); |
119 | } else if (initialPredicateDefinitionHandler.getStartTag().equals(name)) { |
120 | changeHandler(initialPredicateDefinitionHandler, name, attributes); |
121 | } else if (predicateDefinitionHandler.getStartTag().equals(name)) { |
122 | changeHandler(predicateDefinitionHandler, name, attributes); |
123 | } else if (functionDefinitionHandler.getStartTag().equals(name)) { |
124 | changeHandler(functionDefinitionHandler, name, attributes); |
125 | } else if (initialFunctionDefinitionHandler.getStartTag().equals(name)) { |
126 | changeHandler(initialFunctionDefinitionHandler, name, attributes); |
127 | } else if (propositionHandler.getStartTag().equals(name)) { |
128 | changeHandler(propositionHandler, name, attributes); |
129 | } else if (ruleHandler.getStartTag().equals(name)) { |
130 | changeHandler(ruleHandler, name, attributes); |
131 | } else { |
132 | throw XmlSyntaxException.createUnexpectedTagException(name); |
133 | } |
134 | } |
135 | |
136 | public void endElement(final String name) throws XmlSyntaxException { |
137 | if (getStartTag().equals(name)) { |
138 | // thats why we handle it |
139 | } else if (nameHandler.getStartTag().equals(name)) { |
140 | node.setName(nameHandler.getLatexList()); |
141 | } else if (titleHandler.getStartTag().equals(name)) { |
142 | node.setTitle(titleHandler.getLatexList()); |
143 | } else if (precedingHandler.getStartTag().equals(name)) { |
144 | node.setPrecedingText(precedingHandler.getLatexList()); |
145 | } else if (succeedingHandler.getStartTag().equals(name)) { |
146 | node.setSucceedingText(succeedingHandler.getLatexList()); |
147 | } else if (axiomHandler.getStartTag().equals(name)) { |
148 | node.setNodeType(axiomHandler.getAxiom()); |
149 | } else if (initialPredicateDefinitionHandler.getStartTag().equals(name)) { |
150 | node.setNodeType(initialPredicateDefinitionHandler.getInitialDefinition()); |
151 | } else if (predicateDefinitionHandler.getStartTag().equals(name)) { |
152 | node.setNodeType(predicateDefinitionHandler.getDefinition()); |
153 | } else if (functionDefinitionHandler.getStartTag().equals(name)) { |
154 | node.setNodeType(functionDefinitionHandler.getDefinition()); |
155 | } else if (initialFunctionDefinitionHandler.getStartTag().equals(name)) { |
156 | node.setNodeType(initialFunctionDefinitionHandler.getDefinition()); |
157 | } else if (propositionHandler.getStartTag().equals(name)) { |
158 | node.setNodeType(propositionHandler.getProposition()); |
159 | } else if (ruleHandler.getStartTag().equals(name)) { |
160 | node.setNodeType(ruleHandler.getRule()); |
161 | } else { |
162 | throw XmlSyntaxException.createUnexpectedTagException(name); |
163 | } |
164 | } |
165 | |
166 | } |