| 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 | } |