Application: gvSIG desktop » gvSIG raster

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

 * $Id: OGRDataSource.java 7765 2006-10-03 07:05:18Z nacho $

 *

 * Name:     OGRDataSource.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 org.gvsig.jogr;

import java.util.Arrays;

import java.util.Vector;

import org.gdal.ogr.DataSource;

import org.gdal.ogr.Layer;

import org.gdal.ogr.StyleTable;

/** 

 * Esta clase representa a una fuente de datos

 * 

 * @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 OGRDataSource extends DataSource {

//        private native String getNameNat(long cPtr);

//        private native long getLayerNat(long cPtr, int i);

//        private native void FreeOGRDataSource(long cPtr);

//        

//        private native long getLayerByNameNat(long cPtr, String name);

//        private native int deleteLayerNat(long cPtr, int iLayer); //Excepciones

//        private native int testCapabilityNat(long cPtr,  String odr );

//        private native long createLayerNat(long cPtr, String pszName,

//                                         long poSpatialRef,

//                                         String eGType, //OGRwkbGeometryType OGRFeatureDefn

//                                         String[] papszOptions);

//        private native long copyLayerNat(long cPtr,  long poSrcLayer,

//                                        String pszNewName,

//                                        String[] papszOptions);

//        private native long getStyleTableNat(long cPtr);

//        private native long executeSQLNat(long cPtr,  String pszStatement,

//                                        long poSpatialFilter,

//                                        String pszDialect );

//        private native void releaseResultSetNat(long cPtr,  long poResultsSet );

//        private native int syncToDiskNat(long cPtr); //Excepciones

        /**

         * Constructor

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

         */

        public OGRDataSource(long cPtr){

                super(cPtr, true);

        }

        /**

         * Obtiene el nombre del datasource

         * @return Nombre del datasource

         */

        public String getName(){

//                if(cPtr == 0)

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

                String name = this.GetName();

//                if(name==null)

//                        throw new OGRException("Error en getName(). No se ha podido obtener el nombre del datasource.");

                return name;

        }

        /**

         * Obtiene el n?mero de capas

         * @throws OGRException

         * @return N?mero de capas

         */

         public int getLayerCount()throws OGRException{

                return this.GetLayerCount();

         }

         /**

         * Obtiene la capa indicada por el ?ndice

         * @throws OGRException

         * @return una capa

         */

         public OGRLayer getLayer(int i)throws OGRException{

//                 if(cPtr == 0)

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

                 if(i<0)

                        throw new OGRException("Error en getLayer(). Par?metro no valido");

                Layer layer = this.GetLayer(i);

                if(layer==null || !(layer instanceof OGRLayer))

                        throw new OGRException("Error en getLayer(). No se ha podido obtener la capa indicada.");

                return (OGRLayer)layer;

         }

        /**

         * Destructor 

         */

        protected void finalize() {

//                if(cPtr == 0)

//                        throw new OGRFailureException("Fallo al acceder al dato.");

//                

//                FreeOGRDataSource(cPtr);

                this.delete();

        }

        /**

         * 

         */

        public OGRLayer getLayerByName(String name)throws OGRException{

//                if(cPtr == 0)

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

                if(name==null || name.equals(""))

                        throw new OGRException("Error en getLayerByName(). Par?metro no valido");

                Layer ptr_name = this.GetLayerByName(name);

                if(ptr_name==null || !(ptr_name instanceof OGRLayer))

                        throw new OGRException("Error en getLayerByName(). No se ha podido obtener un puntero a un OGRLayer valido.");

                return (OGRLayer)ptr_name;

    }

        /**

         * 

         */

    public void deleteLayer(int iLayer)throws OGRException{ //Excepciones

//            if(cPtr == 0)

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

            if(iLayer<0)

                        throw new OGRException("Error en deleteLayer(). Par?metro no valido");

            int ogrerr = this.DeleteLayer(iLayer);

//            throwException(ogrerr, "Error en deleteLayer()");

    }

    /**

         * 

         */

    public int testCapability( String odr )throws OGRException{

//            if(cPtr == 0)

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

            if(odr==null || odr.equals(""))

                        throw new OGRException("Error en testCapability(). Par?metro no valido");

            boolean res= this.TestCapability(odr);

//                if(res == 0)

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

            int r = 0;

            if(res){

                    r=1;

            }

                return r;

    }

    /**

         * 

         */

    public OGRLayer createLayer(String pszName,

                                     OGRSpatialReference poSpatialRef,

                                     String eGType, //OGRwkbGeometryType OGRFeatureDefn

                                     String[] papszOptions)throws OGRException{

            long ptro_sr = 0;

//            if(cPtr == 0)

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

            if(pszName==null || pszName.equals(""))

                        throw new OGRException("Error en createLayer(). Par?metros en la funci?n no validos.");

            if(poSpatialRef == null || poSpatialRef == null)

                    throw new OGRException("Error en createLayer(). Par?metro OGRSpatialReference no valido.");

            Layer layer = this.CreateLayer(

                            pszName, 

                            poSpatialRef, 

                            OGRTools.getTypeID(eGType), 

                            new Vector(Arrays.asList(papszOptions)));

            if(layer == null && !(layer instanceof OGRLayer))

                        throw new OGRException("Error en createLayer(). No se ha podido obtener una referencia valida a un OGRLayer.");

            return ((OGRLayer)layer);                    

    }

    /**

         * 

         */

    public OGRLayer copyLayer( OGRLayer poSrcLayer,

                                    String pszNewName,

                                    String[] papszOptions)throws OGRException{

//            if(cPtr == 0)

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

            if(pszNewName == null || pszNewName.equals("") || poSrcLayer == null)

                        throw new OGRException("Error en copyLayer(). Par?metros en la funci?n no validos.");

            Layer layer = this.CopyLayer(poSrcLayer, pszNewName, OGRTools.safeStringArrayToVector(papszOptions));

            if(layer == null || !(layer instanceof OGRLayer))

                        throw new OGRException("Error en copyLayer(). No se ha podido obtener una referencia valida a un OGRLayer.");

            return ((OGRLayer)layer);

    }

    /**

         * 

         */

    public OGRStyleTable getStyleTable()throws OGRException{

//            if(cPtr == 0)

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

            StyleTable styletable = this.GetStyleTable();

            if(styletable==null)

                        throw new OGRException("Error en getStyleTable(). No se ha podido obtener una referencia valida a un OGRStyleTable.");

            return (OGRStyleTable)styletable;

    }

    /**

         * 

         */

    public OGRLayer executeSQL( String pszStatement,

                                    OGRGeometry poSpatialFilter,

                                    String pszDialect )throws OGRException{

//            if(cPtr == 0)

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

            if(pszStatement==null || pszStatement.equals("") || poSpatialFilter==null)

                        throw new OGRException("Error en executeSQL(). Par?metros en la funci?n no validos.");

            Layer layer = this.ExecuteSQL(pszStatement, poSpatialFilter, pszDialect);

            if(layer == null || !(layer instanceof OGRLayer))

                        throw new OGRException("Error en executeSQL(). No se ha podido obtener una referencia valida a un OGRLayer.");

            return ((OGRLayer)layer);

    }

    /**

         * 

         */

    public void releaseResultSet( OGRLayer poResultsSet )throws OGRException{

//            if(cPtr == 0)

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

            if(poResultsSet == null)

                        throw new OGRException("Error en releaseResultSet(). Par?metro en la funci?n no valido.");

//            if(poResultsSet.getPtro() == 0)

//                    throw new OGRException("Error en poResultsSet(). Referencia del par?metro OGRLayer invalida.");

            this.ReleaseResultSet(poResultsSet);

    }

    /**

         * 

         */

    public void syncToDisk()throws OGRException{//Excepciones

//            if(cPtr == 0)

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

            int ogrerr = this.SyncToDisk();

//            throwException(ogrerr, "Error en syncToDisk().");

    }

    /**

         * 

         */

//    public int reference()throws OGRException{

//            

//            String msg1="Error en reference(). El constructor no tuvo exito.";

//                String msg2="Error en reference().";

//                return baseSimpleFunctions(6,msg1,msg2);

//    }

    /**

         * 

         */

//    public int dereference()throws OGRException{

//            

//            String msg1="Error en dereference(). El constructor no tuvo exito.";

//                String msg2="Error en dereference().";

//                return baseSimpleFunctions(7,msg1,msg2);

//    }

    /**

         * 

         */

    public int getRefCount()throws OGRException{

                return this.GetRefCount();

    }

    /**

         * 

         */

    public int getSummaryRefCount()throws OGRException{

                return this.GetSummaryRefCount();

    } 

}