Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

* 

* 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., 51 Franklin Street, Fifth Floor, Boston, 

* MA  02110-1301, USA.

* 

*/

/*

* AUTHORS (In addition to CIT):

* 2009 Software Colaborativo (www.scolab.es)   development

*/

package org.gvsig.graph.core;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.hardcode.gdbms.engine.values.Value;

import com.iver.cit.gvsig.exceptions.expansionfile.ExpansionFileReadException;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.iver.cit.gvsig.fmap.layers.ReadableVectorial;

import com.iver.cit.gvsig.fmap.layers.SelectableDataSource;

public class DefaultFeatureExtractor implements IFeatureExtractor {

        private FLyrVect lyr;

        public DefaultFeatureExtractor(FLyrVect lyr) {

                this.lyr = lyr;

        }

        public IFeature getFeature(long i) {

                ReadableVectorial va = lyr.getSource();

                IFeature f = null;

                try {

                        va.start();

                        f = va.getFeature((int) i);

                        va.stop();

                } catch (ExpansionFileReadException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                } catch (ReadDriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return f;

        }

        public Value getFieldValue(long i, int idField) {

                Value f = null;

                try {

                        SelectableDataSource rs = lyr.getSource().getRecordset();

                        rs.start();

                        f = rs.getFieldValue(i, idField);

                        rs.stop();

                } catch (ExpansionFileReadException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                } catch (ReadDriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return f;

        }

        public IGeometry getGeometry(long i) {

                ReadableVectorial va = lyr.getSource();

                IGeometry f = null;

                try {

                        va.start();

                        f = va.getShape((int) i);

                        va.stop();

                } catch (ExpansionFileReadException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                } catch (ReadDriverException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return f;

        }

}