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16 package org.qedeq.kernel.xml.handler.module;
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18 import org.qedeq.kernel.se.dto.module.RenameVo;
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 import org.qedeq.kernel.xml.handler.list.ElementHandler;
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30 public class RenameHandler extends AbstractSimpleHandler {
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33 private RenameVo rename;
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36 private final ElementHandler subjectVariableHandler;
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43 public RenameHandler(final AbstractSimpleHandler handler) {
44 super(handler, "RENAME");
45 subjectVariableHandler = new ElementHandler(this);
46 }
47
48 public final void init() {
49 rename = null;
50 }
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57 public final RenameVo getRenameVo() {
58 return rename;
59 }
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61 public final void startElement(final String name, final SimpleAttributes attributes)
62 throws XmlSyntaxException {
63 if (getStartTag().equals(name)) {
64 rename = new RenameVo();
65 final String ref = attributes.getString("ref");
66 if (ref != null) {
67 rename.setReference(ref);
68 }
69 final Integer occurrence = attributes.getInteger("occurrence");
70 if (occurrence != null) {
71 rename.setOccurrence(occurrence.intValue());
72 }
73 } else if ("VAR".equals(name)) {
74 changeHandler(subjectVariableHandler, name, attributes);
75 } else {
76 throw XmlSyntaxException.createUnexpectedTagException(name);
77 }
78 }
79
80 public final void endElement(final String name) throws XmlSyntaxException {
81 if (getStartTag().equals(name)) {
82
83 } else if ("VAR".equals(name)) {
84 if (rename != null && rename.getOriginalSubjectVariable() == null) {
85 rename.setOriginalSubjectVariable(subjectVariableHandler.getElement());
86 } else if (rename != null) {
87 rename.setReplacementSubjectVariable(subjectVariableHandler.getElement());
88 }
89 } else {
90 throw XmlSyntaxException.createUnexpectedTagException(name);
91 }
92 }
93
94 }