alt2xml: java/alt2xml-cli/src/cz/frantovo/alt2xml/cli/EchoContentHandler.java@a58dce1054af

     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, either version 3 of the License, or

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

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

    17  */

    18 package cz.frantovo.alt2xml.cli;

    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 EchoContentHandler extends DefaultHandler {

    37 	private XMLStreamWriter w;

    39 	/**

    40 	 * @param writer kam se bude vypisovat XML.

    41 	 */

    42 	public EchoContentHandler(XMLStreamWriter writer) {

    43 		w = writer;

    44 	}

    46 	@Override

    47 	public void startDocument() throws SAXException {

    48 		try {

    49 			w.writeStartDocument();

    50 		} catch (XMLStreamException e) {

    51 			throw new SAXException(e);

    52 		}

    53 	}

    55 	@Override

    56 	public void endDocument() throws SAXException {

    57 		try {

    58 			w.writeEndDocument();

    59 			w.close();

    60 		} catch (XMLStreamException e) {

    61 			throw new SAXException(e);

    62 		}

    63 	}

    65 	@Override

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

    67 		try {

    68 			w.writeStartElement(qName);

    70 			if (attributes != null) {

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

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

    73 				}

    74 			}

    76 			w.flush();

    77 		} catch (XMLStreamException e) {

    78 			throw new SAXException(e);

    79 		}

    80 	}

    82 	@Override

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

    84 		try {

    85 			w.writeEndElement();

    86 			w.flush();

    87 		} catch (XMLStreamException e) {

    88 			throw new SAXException(e);

    89 		}

    90 	}

    92 	@Override

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

    94 		try {

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

    96 			w.flush();

    97 		} catch (XMLStreamException e) {

    98 			throw new SAXException(e);

    99 		}

   100 	}

   101 }

author	František Kučera <franta-hg@frantovo.cz>
	Sat, 07 Jun 2014 11:27:57 +0200
changeset 19	a58dce1054af
parent 16	b2fbb3570ae1
child 39	a5020340362b
permissions	-rw-r--r--