it.pdfsam.util.XMLParser.java Source code

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Here is the source code for it.pdfsam.util.XMLParser.java

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/*
 * Created on 19-feb-2005
 *
 * Copyright (C) 2006 by Andrea Vacondio.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the 
 * GNU General Public License as published by the Free Software Foundation; 
 * either version 2 of the License.
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 * See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along with this program; 
 * if not, write to the Free Software Foundation, Inc., 
 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package it.pdfsam.util;

import java.io.File;
import java.io.FileWriter;
import java.net.URL;

import org.dom4j.Document;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

/**
 * Parser XML. Given and XML file, it's parsed and the DOM object created. If and error occur
 * an exception is thrown.
 * @author Andrea Vacondio 
 * @see it.pdfsam.util.XMLConfig
 */
public class XMLParser {

    /**
    * Parse the xml file
    * @return The DOM object
    */
    public static Document parseXmlFile(String full_path) throws Exception {
        Document document = null;
        try {
            File inputFile = new File(full_path);
            if (inputFile.isFile()) {
                SAXReader reader = new SAXReader();
                document = reader.read(inputFile);
            } else {
                throw new Exception("Unable to read " + full_path + ".");
            }
        } catch (Exception e) {
            throw new Exception("Exception creating Document.", e);
        }
        return document;
    }

    /**
     * Parse the url
     * @return The DOM object
     */
    public static Document parseXmlFile(URL url) throws Exception {
        Document document = null;
        try {
            SAXReader reader = new SAXReader();
            document = reader.read(url);
        } catch (Exception e) {
            throw new Exception("Exception reading " + url + ":" + e.getMessage(), e);
        }
        return document;
    }

    /**
     * Write the DOM to the xml file
     * 
     * @param domDoc Document to write
     * @param full_path Full path to the xml file to write
     * @throws Exception
     */
    public static void writeXmlFile(Document domDoc, String full_path) throws Exception {
        FileWriter file_writer = new FileWriter(full_path);
        OutputFormat format = OutputFormat.createPrettyPrint();
        XMLWriter xml_file_writer = new XMLWriter(file_writer, format);
        xml_file_writer.write(domDoc);
        xml_file_writer.flush();
        xml_file_writer.close();
    }
}