| gvSIG desktop 1

package org.gvsig.remoteclient.utils;

import java.io.BufferedReader;

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 java.io.StringBufferInputStream;

import java.io.StringReader;

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:

 *

 * $Id$

 * $Log$

 *

 */

/**

 * 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 IOException 

         */

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

                FileReader reader = null;

                reader = new FileReader(file);

                BufferedReader br = new BufferedReader(reader);

                String encoding = "UTF-8";

                char[] buffer = new char[(int) file.length()];

                reader.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("\""));

                }                        

                if (a > 0){

                        // patch for ArcIMS + WMS connector > 9.0 bug

                        super.setInput(new StringReader(string));

                        // end patch

                }else{

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

                }

        }

}