alt2xml: java/alt2xml-out-xml/src/cz/frantovo/alt2xml/out/xml/XMLHandler.java@e4900596abdb

     1 /**

     2  * Alt2XML

     3  * Copyright © 2014 František Kučera (frantovo.cz)

     4  *

     5  * This program is free software: you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation, version 3 of the License.

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program. If not, see <http://www.gnu.org/licenses/>.

    16  */

    17 package cz.frantovo.alt2xml.out.xml;

    19 import java.util.logging.Logger;

    20 import javax.xml.stream.XMLStreamException;

    21 import javax.xml.stream.XMLStreamWriter;

    22 import org.xml.sax.Attributes;

    23 import org.xml.sax.SAXException;

    24 import org.xml.sax.helpers.DefaultHandler;

    26 /**

    27  * Slouží k převodu právě parsovaného XML zpět na XML.

    28  * Určen pro testování a ladění a pro použití s neobvyklými „XML“ parsery,

    29  * které nečtou XML ale jiný jazyk (např. JSON, INI atd.), ale používají stejné rozhraní (SAX).

    30  *

    31  * TODO: další typy uzlů a jmenné prostory.

    32  *

    33  * @author Ing. František Kučera (frantovo.cz)

    34  */

    35 public class XMLHandler extends DefaultHandler {

    37 	private static final Logger log = Logger.getLogger(XMLHandler.class.getName());

    38 	private XMLStreamWriter w;

    40 	public XMLHandler(XMLStreamWriter writer) {

    41 		w = writer;

    42 	}

    44 	@Override

    45 	public void startDocument() throws SAXException {

    46 		try {

    47 			w.writeStartDocument();

    48 		} catch (XMLStreamException e) {

    49 			throw new SAXException(e);

    50 		}

    51 	}

    53 	@Override

    54 	public void endDocument() throws SAXException {

    55 		try {

    56 			w.writeEndDocument();

    57 			w.close();

    58 		} catch (XMLStreamException e) {

    59 			throw new SAXException(e);

    60 		}

    61 	}

    63 	@Override

    64 	public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {

    65 		try {

    66 			w.writeStartElement(qName);

    68 			if (attributes != null) {

    69 				for (int i = 0; i < attributes.getLength(); i++) {

    70 					w.writeAttribute(attributes.getQName(i), attributes.getValue(i));

    71 				}

    72 			}

    74 			w.flush();

    75 		} catch (XMLStreamException e) {

    76 			throw new SAXException(e);

    77 		}

    78 	}

    80 	@Override

    81 	public void endElement(String uri, String localName, String qName) throws SAXException {

    82 		try {

    83 			w.writeEndElement();

    84 			w.flush();

    85 		} catch (XMLStreamException e) {

    86 			throw new SAXException(e);

    87 		}

    88 	}

    90 	@Override

    91 	public void characters(char[] ch, int start, int length) throws SAXException {

    92 		try {

    93 			w.writeCharacters(ch, start, length);

    94 			w.flush();

    95 		} catch (XMLStreamException e) {

    96 			throw new SAXException(e);

    97 		}

    98 	}

   100 	/**

   101 	 * LexicalHandler methods

   102 	 *

   103 	 * @Override

   104 	 * public void startDTD(String name, String publicId, String systemId) throws SAXException {

   105 	 * log.log(Level.WARNING, "Start of DTD: {0} | {1} | {2}", new Object[]{name, publicId,

   106 	 * systemId});

   107 	 * }

   108 	 *

   109 	 * @Override

   110 	 * public void endDTD() throws SAXException {

   111 	 * log.log(Level.WARNING, "End of DTD");

   112 	 * }

   113 	 *

   114 	 * @Override

   115 	 * public void startEntity(String name) throws SAXException {

   116 	 * log.log(Level.WARNING, "Start of Entity: {0}", name);

   117 	 * }

   118 	 *

   119 	 * @Override

   120 	 * public void endEntity(String name) throws SAXException {

   121 	 * log.log(Level.WARNING, "End of Entity: {0}", name);

   122 	 * }

   123 	 *

   124 	 * @Override

   125 	 * public void startCDATA() throws SAXException {

   126 	 * log.log(Level.WARNING, "Start of CDATA");

   127 	 * }

   128 	 *

   129 	 * @Override

   130 	 * public void endCDATA() throws SAXException {

   131 	 * log.log(Level.WARNING, "End of CDATA");

   132 	 * }

   133 	 *

   134 	 * @Override

   135 	 * public void comment(char[] ch, int start, int length) throws SAXException {

   136 	 * try {

   137 	 * w.writeComment(new String(ch, start, length));

   138 	 * w.flush();

   139 	 * } catch (XMLStreamException e) {

   140 	 * throw new SAXException(e);

   141 	 * }

   142 	 * }

   143 	 */

   144 }

author	František Kučera <franta-hg@frantovo.cz>
	Thu, 24 Oct 2019 21:56:03 +0200
changeset 111	e4900596abdb
parent 43	058c1c39251e
permissions	-rw-r--r--