1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/java/alt2xml-out-xml/src/cz/frantovo/alt2xml/out/xml/XMLHandler.java Sun Jun 15 14:50:49 2014 +0200
1.3 @@ -0,0 +1,145 @@
1.4 +/**
1.5 + * Alt2XML
1.6 + * Copyright © 2014 František Kučera (frantovo.cz)
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, either version 3 of the License, or
1.11 + * (at your option) any later version.
1.12 + *
1.13 + * This program is distributed in the hope that it will be useful,
1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.16 + * GNU General Public License for more details.
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License
1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
1.20 + */
1.21 +package cz.frantovo.alt2xml.out.xml;
1.22 +
1.23 +import java.util.logging.Logger;
1.24 +import javax.xml.stream.XMLStreamException;
1.25 +import javax.xml.stream.XMLStreamWriter;
1.26 +import org.xml.sax.Attributes;
1.27 +import org.xml.sax.SAXException;
1.28 +import org.xml.sax.helpers.DefaultHandler;
1.29 +
1.30 +/**
1.31 + * Slouží k převodu právě parsovaného XML zpět na XML.
1.32 + * Určen pro testování a ladění a pro použití s neobvyklými „XML“ parsery,
1.33 + * které nečtou XML ale jiný jazyk (např. JSON, INI atd.), ale používají stejné rozhraní (SAX).
1.34 + *
1.35 + * TODO: další typy uzlů a jmenné prostory.
1.36 + *
1.37 + * @author Ing. František Kučera (frantovo.cz)
1.38 + */
1.39 +public class XMLHandler extends DefaultHandler {
1.40 +
1.41 + private static final Logger log = Logger.getLogger(XMLHandler.class.getName());
1.42 + private XMLStreamWriter w;
1.43 +
1.44 + public XMLHandler(XMLStreamWriter writer) {
1.45 + w = writer;
1.46 + }
1.47 +
1.48 + @Override
1.49 + public void startDocument() throws SAXException {
1.50 + try {
1.51 + w.writeStartDocument();
1.52 + } catch (XMLStreamException e) {
1.53 + throw new SAXException(e);
1.54 + }
1.55 + }
1.56 +
1.57 + @Override
1.58 + public void endDocument() throws SAXException {
1.59 + try {
1.60 + w.writeEndDocument();
1.61 + w.close();
1.62 + } catch (XMLStreamException e) {
1.63 + throw new SAXException(e);
1.64 + }
1.65 + }
1.66 +
1.67 + @Override
1.68 + public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
1.69 + try {
1.70 + w.writeStartElement(qName);
1.71 +
1.72 + if (attributes != null) {
1.73 + for (int i = 0; i < attributes.getLength(); i++) {
1.74 + w.writeAttribute(attributes.getQName(i), attributes.getValue(i));
1.75 + }
1.76 + }
1.77 +
1.78 + w.flush();
1.79 + } catch (XMLStreamException e) {
1.80 + throw new SAXException(e);
1.81 + }
1.82 + }
1.83 +
1.84 + @Override
1.85 + public void endElement(String uri, String localName, String qName) throws SAXException {
1.86 + try {
1.87 + w.writeEndElement();
1.88 + w.flush();
1.89 + } catch (XMLStreamException e) {
1.90 + throw new SAXException(e);
1.91 + }
1.92 + }
1.93 +
1.94 + @Override
1.95 + public void characters(char[] ch, int start, int length) throws SAXException {
1.96 + try {
1.97 + w.writeCharacters(ch, start, length);
1.98 + w.flush();
1.99 + } catch (XMLStreamException e) {
1.100 + throw new SAXException(e);
1.101 + }
1.102 + }
1.103 +
1.104 + /**
1.105 + * LexicalHandler methods
1.106 + *
1.107 + * @Override
1.108 + * public void startDTD(String name, String publicId, String systemId) throws SAXException {
1.109 + * log.log(Level.WARNING, "Start of DTD: {0} | {1} | {2}", new Object[]{name, publicId,
1.110 + * systemId});
1.111 + * }
1.112 + *
1.113 + * @Override
1.114 + * public void endDTD() throws SAXException {
1.115 + * log.log(Level.WARNING, "End of DTD");
1.116 + * }
1.117 + *
1.118 + * @Override
1.119 + * public void startEntity(String name) throws SAXException {
1.120 + * log.log(Level.WARNING, "Start of Entity: {0}", name);
1.121 + * }
1.122 + *
1.123 + * @Override
1.124 + * public void endEntity(String name) throws SAXException {
1.125 + * log.log(Level.WARNING, "End of Entity: {0}", name);
1.126 + * }
1.127 + *
1.128 + * @Override
1.129 + * public void startCDATA() throws SAXException {
1.130 + * log.log(Level.WARNING, "Start of CDATA");
1.131 + * }
1.132 + *
1.133 + * @Override
1.134 + * public void endCDATA() throws SAXException {
1.135 + * log.log(Level.WARNING, "End of CDATA");
1.136 + * }
1.137 + *
1.138 + * @Override
1.139 + * public void comment(char[] ch, int start, int length) throws SAXException {
1.140 + * try {
1.141 + * w.writeComment(new String(ch, start, length));
1.142 + * w.flush();
1.143 + * } catch (XMLStreamException e) {
1.144 + * throw new SAXException(e);
1.145 + * }
1.146 + * }
1.147 + */
1.148 +}