rexsl-maven-plugin-0.2.7.src.main.java.com.rexsl.maven.packers.XslPacker Maven / Gradle / Ivy

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/**
 * Copyright (c) 2011, ReXSL.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met: 1) Redistributions of source code must retain the above
 * copyright notice, this list of conditions and the following
 * disclaimer. 2) Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following
 * disclaimer in the documentation and/or other materials provided
 * with the distribution. 3) Neither the name of the ReXSL.com nor
 * the names of its contributors may be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.rexsl.maven.packers;

import java.io.File;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;

/**
 * Packager of XSL files. All XML comments and unnecessary spaces are removed.
 *
 * @author Dmitry Bashkin ([email protected])
 * @author Yegor Bugayenko ([email protected])
 * @version $Id: XslPacker.java 464 2011-12-12 09:30:18Z guard $
 */
public final class XslPacker extends AbstractPacker {

    /**
     * Document builder factory.
     */
    private static final DocumentBuilderFactory DFACTORY =
        DocumentBuilderFactory.newInstance();

    /**
     * Transformer factory.
     */
    private static final TransformerFactory TFACTORY =
        TransformerFactory.newInstance();

    /**
     * {@inheritDoc}
     */
    @Override
    protected String extension() {
        return "xsl";
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void pack(final File src, final File dest) throws IOException {
        this.DFACTORY.setNamespaceAware(true);
        Document document;
        try {
            document = this.DFACTORY.newDocumentBuilder().parse(src);
        } catch (javax.xml.parsers.ParserConfigurationException ex) {
            throw new IllegalStateException(ex);
        } catch (org.xml.sax.SAXException ex) {
            throw new IllegalStateException(ex);
        }
        try {
            this.TFACTORY.newTransformer().transform(
                new DOMSource(document),
                new StreamResult(dest)
            );
        } catch (javax.xml.transform.TransformerConfigurationException ex) {
            throw new IllegalStateException(ex);
        } catch (javax.xml.transform.TransformerException ex) {
            throw new IllegalStateException(ex);
        }
    }

}