Application: gvSIG desktop

package org.gvsig.remoteClient.utils;

import java.io.BufferedReader;

import java.io.ByteArrayInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.io.Reader;

import org.kxml2.io.KXmlParser;

import org.xmlpull.v1.XmlPullParserException;

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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, or (at your option) any later version.

 *

 * 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id: EncodingXMLParser.java 12904 2007-08-03 07:25:57Z  $

 * $Log$

 * Revision 1.1.2.1  2007-07-05 12:30:11  jorpiell

 * The EncodingXMLParser has been created. This parser has to be used instead of the KxmlParser

 *

 *

 */

/**

 * This class is a XML pull parser that discover and manage

 * the file encoding

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 */

public class EncodingXMLParser extends KXmlParser{

        /**

         *          * This method reads the first bytes of the file and

         * try to discover the file encoding. It parses the file

         * with retrieved encoding.

         * @param file

         * @throws XmlPullParserException 

         * @throws FileNotFoundException 

         */

        public void setInput(File file) throws FileNotFoundException, XmlPullParserException{

                FileReader reader = null;

                String encoding = "UTF-8";

            try        {

                    reader = new FileReader(file);

                    BufferedReader br = new BufferedReader(reader);

                    char[] buffer = new char[100];

                    br.read(buffer);

                    String string = new String(buffer);

                     // patch for ArcIMS + WMS connector > 9.0 bug

            int a = string.toLowerCase().indexOf("<?xml");

            if (a !=-1)

                    string = string.substring(a, string.length());

            // end patch

                    StringBuffer st = new StringBuffer(string);

                    String searchText = "encoding=\"";

                    int index = st.indexOf(searchText);

                    if (index>-1) {

                            st.delete(0, index+searchText.length());

                            encoding = st.substring(0, st.indexOf("\""));

                    }

            } catch(FileNotFoundException ex)        {

                    ex.printStackTrace();

            } catch (IOException e) {

                        e.printStackTrace();

                }

            super.setInput(new FileInputStream(file), encoding);

        }

}