| gvSIG desktop 1

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

 * $Id: OGRLayer.java 7847 2006-10-04 06:55:46Z nacho $

 *

 * Name:     OGRLayer.java

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

 * Purpose:   

 * 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.

 */

package es.gva.cit.jogr;

/** 

 * 

 * @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

 */

public class OGRLayer extends JNIBase{

        public native long getLayerDefnNat(long cPtr);

        public native void resetReadingNat(long cPtr);

        public native int getExtentNat(long cPtr, OGREnvelope extent, boolean bForce);

        private native void FreeOGRLayerNat(long cPtr);

        private native long getNextFeatureNat(long cPtr);

        private native long getSpatialFilterNat(long cPtr);

        private native void setSpatialFilterNat( long cPtr, long geom );

        private native int setAttributeFilterNat( long cPtr, String att ); //Excepciones

        private native long getFeatureNat( long cPtr, long nFID );

        private native int setFeatureNat( long cPtr, long poFeature );//Excepciones

        private native int createFeatureNat( long cPtr, long poFeature );//Excepciones

        private native int deleteFeatureNat( long cPtr, long nFID );//Excepciones

        private native long getSpatialRefNat(long cPtr);

        private native int testCapabilityNat( long cPtr, String od );

        private native String getInfoNat( long cPtr, String s );

        private native int createFieldNat( long cPtr, long poField, int bApproxOK);//Excepciones

        private native long getStyleTableNat(long cPtr);

        private native void setStyleTableNat(long cPtr, long poStyleTable);

        private native int initializeIndexSupportNat( long cPtr, String s );//Excepciones

        private native long getIndexNat(long cPtr);

        private native int syncToDiskNat(long cPtr);

        private native int commitTransactionNat(long cPtr);

        private native int rollbackTransactionNat(long cPtr);

        private native int referenceNat(long cPtr);

        private native int dereferenceNat(long cPtr);

        private native int startTransactionNat(long cPtr);

        /**

         * Constructor

         * @param cPtr        direcci?n de memoria al objeto OGRLayer de C. 

         */

        public OGRLayer(long cPtr){

                this.cPtr=cPtr;

        }

         /**

         * 

         * @throws OGRException

         * @return 

         */

         public OGRFeatureDefn getLayerDefn()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getLayerDefn(). El constructor no tuvo exito");

                long layer = getLayerDefnNat(cPtr);

                if(layer<=0)

                        throw new OGRException("Error en getLayerDefn(). No se ha podido obtener el objeto OGRFeatureDefn.");

                return new OGRFeatureDefn(layer);

         }

         /**

          * 

          */

         public void resetReading()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en resetReading(). El constructor no tuvo exito");

                 resetReadingNat(cPtr);

         }

         /**

         * Obtiene el n?mero de caracteristicas

         * @throws OGRException

         * @return N?mero de caracteristicas

         */

         public int getFeatureCount()throws OGRException{

                String msg1="Error en getFeatureCount. El constructor no tuvo exito.";

                String msg2="Error en el conteo de caracteristicas.";

                return baseSimpleFunctions(2,msg1,msg2);

         }

         /**

          * Obtiene el extent de la capa

          * @throws OGRException

          * @return objeto conteniendo el extent 

          */

         public OGREnvelope getExtent(boolean bForce)throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getExtent(). El constructor no tuvo exito");

                 OGREnvelope extent = new OGREnvelope();

                 int err;

                 err = getExtentNat(cPtr, extent, bForce);

                 if(err!=0)

                         lanzarExcepcion(err,"Error em getFeatureCount()");

                 return extent;

         }

         /**

          * 

          */

         public OGRFeature getNextFeature()throws OGRException{

                 OGRFeature feature = null;

                 if(cPtr <= 0)

                        throw new OGRException("Error en getNextFeature(). El constructor no tuvo exito");

                 long ptro_feat = getNextFeatureNat(cPtr);

                 if(ptro_feat >=0)

                         feature = new OGRFeature(ptro_feat);

                 return feature;

         }

         /**

         * Destructor 

         */

         protected void finalize(){

                if(cPtr > 0)

                        FreeOGRLayerNat(cPtr);

         }

         /**

          * 

          */

         public OGRGeometry getSpatialFilter()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getSpatialFilter(). El constructor no tuvo exito");

                 long ptr_sf = getSpatialFilterNat(cPtr);

                 if(ptr_sf <= 0)

                        throw new OGRException("Error en getSpatialFilter(). No se ha podido obtener un OGRGeometry valido.");

                 OGRGeometry geom = new OGRGeometry(ptr_sf);

                 return geom;

         }

         /**

          * 

          */

         public void setSpatialFilter( OGRGeometry geom )throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en setSpatialFilter(). El constructor no tuvo exito");

                 if(geom.getPtro()<=0)

                         throw new OGRException("Error en setSpatialFilter(). El objeto OGRGeometry no tiene un puntero valido.");

                 setSpatialFilterNat(cPtr,geom.getPtro());

         }

         /**

          * 

          */

         public void setAttributeFilter( String att) throws OGRException{ //Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en setAttributeFilter(). El constructor no tuvo exito");

                 setAttributeFilterNat(cPtr, att);

         }

         /**

          * 

          */

         public OGRFeature getFeature( long nFID )throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getFeature(). El constructor no tuvo exito");

                 long ptr_f = getFeatureNat(cPtr, nFID);

                 if(ptr_f <= 0)

                        throw new OGRException("Error en getFeature(). No se ha podido obtener un OGRFeature valido.");

                 OGRFeature feature = new OGRFeature(ptr_f);

                 return feature;

         }

         /**

          * 

          */

         public void setFeature( OGRFeature poFeature )throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en setFeature(). El constructor no tuvo exito");

                 if(poFeature.getPtro()<=0)

                         throw new OGRException("Error en setFeature(). El objeto OGRFeature no tiene un puntero valido.");

                 setFeatureNat(cPtr, poFeature.getPtro());

         }

         /**

          * 

          */

         public void createFeature( OGRFeature poFeature )throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en createFeature(). El constructor no tuvo exito");

                 if(poFeature.getPtro()<=0)

                         throw new OGRException("Error en createFeature(). El objeto OGRFeature no tiene un puntero valido.");

                 createFeatureNat(cPtr,poFeature.getPtro());

         }

         /**

          * 

          */

         public void deleteFeature( long nFID )throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en deleteFeature(). El constructor no tuvo exito");

                 deleteFeatureNat(cPtr, nFID);

         }

         /**

          * Obtiene el sistema de referencia espacial para esta capa o nulo si no tiene.

          * @throws OGRException

          * @return Sistema de referencia espacial

          */

         public OGRSpatialReference getSpatialRef()throws OGRException{

                 OGRSpatialReference sr=null;

                 if(cPtr <= 0)

                        throw new OGRException("Error en getSpatialRef(). El constructor no tuvo exito");

                 long ptr_sr = getSpatialRefNat(cPtr);

                 if(ptr_sr > 0)

                         sr = new OGRSpatialReference(ptr_sr);

                 return sr;

         }

         /**

          * 

          */

         public int testCapability( String od )throws OGRException{

                if(cPtr <= 0)

                        throw new OGRException("Error en testCapability(). El constructor ha fallado.");

                int res=-1;

                res = testCapabilityNat(cPtr, od);

                if(res<0)

                        throw new OGRException("Error en testCapability(). No se ha podido obtener un valor de retorno valido.");

                return res;

         }

         /**

          * 

          */

         public String getInfo( String s )throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getInfo(). El constructor no tuvo exito");

                 String info = getInfoNat(cPtr, s);

                 if(info==null)

                         throw new OGRException("Error en getInfo(). No se ha podido obtener informaci?n valida.");

                 return info;

         }

         /**

          * 

          */

         public void createField( OGRFieldDefn poField, int bApproxOK)throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en greateField(). El constructor no tuvo exito");

                 if(poField.getPtro() <= 0)

                         throw new OGRException("Error en greateField(). El objeto OGRFieldDefn no tiene una direcci?n de memoria valida.");

                 int res = createFieldNat(cPtr, poField.getPtro(), bApproxOK);

                 lanzarExcepcion(res, "Error en greateField().");

         }

         /**

          * 

          */

         public void syncToDisk()throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en syncToDisk(). El constructor no tuvo exito");

                int ogrerr = syncToDiskNat(cPtr);

                 lanzarExcepcion(ogrerr, "Error en syncToDisk()");

         }

         /**

          * 

          */

         public OGRStyleTable getStyleTable()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getStyleTable(). El constructor no tuvo exito");

                 long ptr_st = getStyleTableNat(cPtr);

                 if(ptr_st<=0)

                         throw new OGRException("Error en getStyleTable(). No se ha podido obtener un objeto OGRStyleTable valido.");

                 OGRStyleTable st=new OGRStyleTable(ptr_st);

                 return st;

         }

         /**

          * 

          */

         public void setStyleTable(OGRStyleTable poStyleTable)throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en setStyleTable(). El constructor no tuvo exito");

                 setStyleTableNat(cPtr, poStyleTable.getPtro());

         }

         /**

          * 

          */

         public void startTransaction()throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en startTransaction(). El constructor no tuvo exito");

                 int ogrerr = startTransactionNat(cPtr);

                 lanzarExcepcion(ogrerr,"Error en startTransaction().");

         }

         /**

          * 

          */

         public void commitTransaction()throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en commitTransaction(). El constructor no tuvo exito");

                 int ogrerr = commitTransactionNat(cPtr);

                 lanzarExcepcion(ogrerr,"Error en commitTransaction().");

         }

         /**

          * 

          */

         public void rollbackTransaction()throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en rollbackTransaction(). El constructor no tuvo exito");

                 int ogrerr = rollbackTransactionNat(cPtr);

                 lanzarExcepcion(ogrerr,"Error en rollbackTransaction().");

         }

         /**

          * 

          */

         public int reference()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en reference(). El constructor no tuvo exito");

                 return referenceNat(cPtr);

         }

         /**

          * 

          */

         public int dereference()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en dereference(). El constructor no tuvo exito");

                 return dereferenceNat(cPtr);

         }

         /**

          * 

          */

         public int getRefCount()throws OGRException{

                 String msg1="Error en getRefCount. El constructor no tuvo exito.";

                String msg2="Error en getRefCount. No se ha podido obtener un n?mero de referencias valido.";

                return baseSimpleFunctions(20,msg1,msg2);

         }

         /**

          * 

          */

         public void initializeIndexSupport( String s )throws OGRException{//Excepciones

                 if(cPtr <= 0)

                        throw new OGRException("Error en initializeIndexSupport(). El constructor no tuvo exito");

                 initializeIndexSupportNat(cPtr, s);

         }

         /**

          * 

          */

         public OGRLayerAttrIndex getIndex()throws OGRException{

                 if(cPtr <= 0)

                        throw new OGRException("Error en getIndex(). El constructor no tuvo exito");

                 long ptr_lai = getIndexNat(cPtr);

                 if(ptr_lai<=0)

                         throw new OGRException("Error en getIndex(). No se ha podido obtener un OGRLayerAttrIndex valido.");

                 OGRLayerAttrIndex layerattrin = new OGRLayerAttrIndex(ptr_lai);

                 return layerattrin;

         }            

}