Application: gvSIG desktop

/**********************************************************************

 * $Id: JNIBase.java 915 2005-01-12 08:21:15Z igbrotru $

 *

 * Name:     JNIBase.java

 * Project:  JGDAL. Interfaz java to gdal (Frank Warmerdam).

 * Purpose:  Base class for classes that use JNI.

 * Author:   Nacho Brodin, brodin_ign@gva.es

 *

 **********************************************************************/

/*Copyright (C) 2004  Nacho Brodin <brodin_ign@gva.es>

 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.

 */

/**

 * @author Nacho Brodin <brodin_ign@gva.es>.<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @version 0.0

 * @link http://www.gvsig.gva.es

 */

package es.gva.cit.jgdal;

public class JNIBase{

        protected long cPtr;

        private native int getRasterBandXSizeNat(long cPtr);

        private native int getRasterBandYSizeNat(long cPtr);

        private native int getOverviewCountNat(long cPtr);

        private native int getBlockXSizeNat(long cPtr);

        private native int getBlockYSizeNat(long cPtr);

        private native int getRasterXSizeNat(long cPtr);

        private native int getRasterYSizeNat(long cPtr);

        private native int getRasterCountNat(long cPtr);

        private native int getGCPCountNat(long cPtr);

        private native int getRasterDataTypeNat(long cPtr);

        private native int getDriverCountNat(long cPtr);

        private native int getLayerCountNat(long cPtr);

         /**

         * Funci?n que sirve como base para funcionalidades de gdal que admiten como par?metro un entero y devuelven un entero.

         * 

         * @throws GdalException.

         * @param msg1        Mensaje de error que se muestra cuando el puntero a objeto pasado es vacio.

         * @param msg2        Mensaje de error que se muestra cuando el resultado de la llamada a la funci?n de gdal es menor o igual que 0.

         */

        protected int baseSimpleFunctions(int n,String msg1,String msg2)throws GdalException{

                int res = 0;

                if(cPtr <= 0)

                        throw new GdalException(msg1);

                switch(n){

                        case 0: res = getRasterBandXSizeNat(cPtr);break;

                        case 1: res = getRasterBandYSizeNat(cPtr);break;

                        case 2: res = getOverviewCountNat(cPtr);break;

                        case 3: res = getBlockXSizeNat(cPtr);break;

                        case 4: res = getBlockYSizeNat(cPtr);break;

                        case 5: res = getRasterXSizeNat(cPtr);break;

                        case 6: res = getRasterYSizeNat(cPtr);break;

                        case 7: res = getRasterCountNat(cPtr);break;

                        case 8: res = getGCPCountNat(cPtr);break;

                        case 9: res = getRasterDataTypeNat(cPtr);break;

                        case 10: res = getDriverCountNat(cPtr);break;                //OGR

                        case 11: res = getLayerCountNat(cPtr);break;                //OG

                }

                if(res<0)

                         throw new GdalException(msg2);

                else return res;

        }

        static{

                System.loadLibrary("jgdal");

        }

}