1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/java/alt2xml-lib-output/src/cz/frantovo/alt2xml/out/AbstractDOMAction.java	Thu Sep 04 00:39:11 2014 +0200
     1.3 @@ -0,0 +1,65 @@
     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;
    1.22 +
    1.23 +import javax.xml.parsers.SAXParser;
    1.24 +import javax.xml.transform.Transformer;
    1.25 +import javax.xml.transform.TransformerException;
    1.26 +import javax.xml.transform.TransformerFactory;
    1.27 +import javax.xml.transform.TransformerFactoryConfigurationError;
    1.28 +import javax.xml.transform.dom.DOMResult;
    1.29 +import javax.xml.transform.sax.SAXSource;
    1.30 +import org.xml.sax.InputSource;
    1.31 +import org.xml.sax.SAXException;
    1.32 +
    1.33 +/**
    1.34 + * Recommended base class for Actions based on DOM processing.
    1.35 + * This actiond does not support streaming – whole document must be parsed/converted to DOM and
    1.36 + * after that the action is executed.
    1.37 + *
    1.38 + * @author Ing. František Kučera (frantovo.cz)
    1.39 + */
    1.40 +public abstract class AbstractDOMAction extends AbstractAction {
    1.41 +
    1.42 +	public AbstractDOMAction(ActionContext actionContext) {
    1.43 +		super(actionContext);
    1.44 +	}
    1.45 +
    1.46 +	@Override
    1.47 +	public void run(SAXParser parser, InputSource source) throws OutputActionException {
    1.48 +
    1.49 +		try {
    1.50 +			TransformerFactory tf = TransformerFactory.newInstance();
    1.51 +			Transformer t = tf.newTransformer();
    1.52 +
    1.53 +			DOMResult domResult = new DOMResult();
    1.54 +
    1.55 +			t.transform(new SAXSource(parser.getXMLReader(), source), domResult);
    1.56 +
    1.57 +			run(domResult);
    1.58 +
    1.59 +		} catch (SAXException e) {
    1.60 +			throw new OutputActionException("Unable to get SAX reader during SAX→DOM conversion.", e);
    1.61 +		} catch (TransformerException | TransformerFactoryConfigurationError e) {
    1.62 +			throw new OutputActionException("Unable to convert SAX events to DOM using XSLT.", e);
    1.63 +		}
    1.64 +	}
    1.65 +
    1.66 +	protected abstract void run(DOMResult domResult) throws OutputActionException;
    1.67 +
    1.68 +}