Dépôt officiel du code source de l'ERP OpenConcerto

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 2011 OpenConcerto, by ILM Informatique. All rights reserved.
 * 
 * The contents of this file are subject to the terms of the GNU General Public License Version 3
 * only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
 * copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each file.
 */
 
 package org.openconcerto.xml;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Properties;

import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.input.SAXBuilder;
import org.jdom2.input.sax.XMLReaderSAX2Factory;

public class FastXMLProperties {

    public static void load(Properties props, InputStream in) throws IOException {
        final SAXBuilder builder = new SAXBuilder(new XMLReaderSAX2Factory(false, "com.bluecast.xml.Piccolo"), null, null);
        try {
            final Document document = builder.build(new BufferedInputStream(in));
            for (Element element : document.getRootElement().getChildren()) {
                if (element.getName().equals("entry")) {
                    props.setProperty(element.getAttributeValue("key"), element.getText());
                }
            }
        } catch (Exception e) {
            throw new IOException(e);
        }

    }

    /**
     * Fast alternative (<1ms) for Properties.storeToXML (30ms)
     * 
     */
    public static void store(Properties props, OutputStream out, String comment) throws IOException {
        PrintStream prt = new PrintStream(out, false, "UTF-8");
        prt.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n");
        prt.append("<properties>\\r\n");
        if (comment != null) {
            prt.append("<comment>");
            prt.append(comment);
            prt.append("</comment>\\r\n");
        }
        synchronized (props) {
            for (String k : props.stringPropertyNames()) {
                prt.append("<entry key=\"");
                prt.append(XMLUtils.escapeAttribute(k));
                prt.append("\">");
                prt.append(XMLUtils.escapeText(props.getProperty(k)));
                prt.append("</entry>\\r\n");
            }
        }
        prt.append("</properties>");
        prt.close();
    }

}