| gvSIG desktop 1

/* 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

 */

package com.iver.cit.gvsig.exceptions.visitors;

import java.util.Hashtable;

import java.util.Map;

import org.gvsig.exceptions.BaseException;

/**

 * <p>The information of a layer or group of layers is accessed using the *strategy* and *visitor* software patterns. If

 *  any problem is produced accessing that information in that way, a <code>VisitException</code> will be produced.</p>

 *

 * @author Vicente Caballero Navarro

 */

public class VisitorException extends BaseException {

        private String layer = null;

        /**

          * <p>Constructs an visitor exception with the specified cause, and the layer where this exception was produced.</p>

          * 

          * @param layer the layer affected

         * @param exception an exception with the cause

         */

        public VisitorException(String layer,Throwable exception) {

                this.layer = layer;

                init();

                initCause(exception);

        }

        /**

         * <p>Prepares the messages to display.</p>

         */

        private void init() {

                messageKey = "error_visitor";

                formatString = "Can?t visit the layer: %(layer) ";

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.exceptions.BaseException#values()

         */

        protected Map values() {

                Hashtable params = new Hashtable();

                params.put("layer",layer);

                return params;

        }

}