| gvSIG desktop 1

package org.gvsig.gpe;

import java.io.File;

import java.lang.reflect.InvocationTargetException;

import java.util.ArrayList;

/* 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:

 *

 * $Id$

 * $Log$

 * Revision 1.1  2007-04-11 08:52:55  jorpiell

 * Se puede registrar una clase por nombre

 *

 * Revision 1.1  2007/04/11 08:22:41  jorpiell

 * GPE clase para registrar los drivers

 *

 *

 */

/**

 * This class is used to register the GPE parsers. All the 

 * parsers must be registered in this class before to be

 * used for the consumer application

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

 */

public class GPERegister {

	private static ArrayList parsers = new ArrayList();

	/**

	 * Adds a new GPE parser

	 * @param driver

	 */

	private static void addGpeDriver(GPEParser parser){

		parsers.add(parser);

	}

	/**

	 * Adds a new GPE parser

	 * @param driver

	 * @throws ClassNotFoundException 

	 * @throws NoSuchMethodException 

	 * @throws InvocationTargetException 

	 * @throws IllegalAccessException 

	 * @throws InstantiationException 

	 * @throws SecurityException 

	 * @throws IllegalArgumentException 

	 */

	private static void addGpeDriver(String className, 

			GPEContentHandler contentHandler,

			GPEErrorHandler errorsHanlder) throws ClassNotFoundException, IllegalArgumentException, SecurityException, InstantiationException, IllegalAccessException, InvocationTargetException, NoSuchMethodException{

		Class [] args = {GPEContentHandler.class,GPEErrorHandler.class};

		Object [] params = {contentHandler,errorsHanlder};

		Class clazz = Class.forName(className);

		if (clazz != null){

			GPEParser parser = (GPEParser)clazz.getConstructor(args).newInstance(params);

			parsers.add(parser);

		}		

	}

	/**

	 * Return true if exists a driver that can open the file

	 * @param file

	 * File to open

	 * @return

	 * true if the driver exists

	 */

	private static boolean accept(File file){

		for (int i=0 ; i<parsers.size() ; i++){

			GPEParser parser = (GPEParser)parsers.get(i);

			if (parser.accept(file)){

				return true;

			}

		}

		return false;

	}

	/**

	 * Gets the driver that can open the file (if it exists)

	 * @param file

	 * File to open

	 * @return

	 * Null if the driver doesn't exist

	 */

	private static GPEParser getDriver(File file){

		for (int i=0 ; i<parsers.size() ; i++){

			GPEParser parser = (GPEParser)parsers.get(i);

			if (parser.accept(file)){

				return parser;

			}

		}

		return null;

	}

}