Application: gvSIG desktop

package org.gvsig.remoteClient.gml.factories;

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 org.gvsig.remoteClient.gml.exceptions.GMLException;

import org.gvsig.remoteClient.gml.schemas.XMLSchemaParser;

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: XMLParserFactory.java 9917 2007-01-25 16:13:00Z jorpiell $

 * $Log$

 * Revision 1.1.2.1  2007-01-25 16:12:59  jorpiell

 * Se han sustituido las clases por las que hay en el nuevo driver de GML.

 *

 * Revision 1.3  2007/01/15 13:11:00  csanchez

 * Sistema de Warnings y Excepciones adaptado a BasicException

 *

 * Revision 1.2  2006/12/22 11:25:44  csanchez

 * Nuevo parser GML 2.x para gml's sin esquema

 *

 * Revision 1.1  2006/08/10 12:00:49  jorpiell

 * Primer commit del driver de Gml

 *

 *

 */

/**

 * Factory to create parsers to parse xml documents with

 * different schemas.

 * 

 * @author Jorge Piera Llodr? (piera_jor@gva.es)

 * @author Carlos S?nchez Peri??n (sanchez_carper@gva.es)

 * 

 */

public class XMLParserFactory {

        private String encoding = "UTF-8";

        /**

         * Creates a new XML parser

         * First find the correct encoding to read the file

         * @param m_File

         * File to parse

         * @return

         * @throws IOException

         * @throws XmlPullParserException

         */

        public XMLSchemaParser createSchemaParser(File m_File) throws GMLException{

                FileReader reader = null;       

                try {

                        reader = new FileReader(m_File);

                } catch (FileNotFoundException e) {

                        // TODO Auto-generated catch block

                        throw new GMLException(m_File.getName(),e);

                }

                BufferedReader br = new BufferedReader(reader);

                char[] buffer = new char[100];

                try {

                        br.read(buffer);

                } catch (IOException e) {

                        // TODO Auto-generated catch block

                        throw new GMLException(m_File.getName(),e);

                }

                StringBuffer st = new StringBuffer(new String(buffer));

                // We find the encoding at the begining of the file

                String searchText = "encoding=\"";

                int index = st.indexOf(searchText);

                // If it find the encoding, it takes the new encoding, else it takes the default encoding "UTF-8"

                if (index>-1) { 

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

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

                }

                // make GML parser with the good enconding

                XMLSchemaParser parser = new XMLSchemaParser();

                // setImput(file,encoding): it sets the encoding to read with the KXML parser                

                try {

                        parser.setInput(new FileInputStream(m_File), encoding);

                } catch (FileNotFoundException e) {

                        // TODO Auto-generated catch block

                        throw new GMLException(m_File.getName(),e);

                } catch (XmlPullParserException e) {

                        // TODO Auto-generated catch block

                        throw new GMLException(m_File.getName(),e);

                }

                return parser;

        }

}