Application: gvSIG desktop » gvSIG geoprocess

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2012 gvSIG Association.

 *

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

/*

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2010 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.

 */

package org.gvsig.geoprocess.algorithm.dissolve;

import java.util.ArrayList;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.EditableFeature;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FeatureSelection;

import org.gvsig.fmap.dal.feature.FeatureSet;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.geom.exception.CreateGeometryException;

import org.gvsig.fmap.geom.primitive.NullGeometry;

import org.gvsig.geoprocess.algorithm.base.core.GeometryOperation;

import org.gvsig.geoprocess.algorithm.base.util.GeometryUtil;

import org.gvsig.geoprocess.lib.sextante.AbstractSextanteGeoProcess;

import org.gvsig.tools.dispose.DisposableIterator;

import com.vividsolutions.jts.geom.Geometry;

import es.unex.sextante.core.Sextante;

/**

 * Dissolve operation

 * @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>

 */

public class DissolveOperation extends GeometryOperation {

        private EditableFeature                  lastEditFeature  = null;

        private ArrayList<Geometry>              geometries       = new ArrayList<Geometry>();

        private IDissolveRule                    criteria         = null;

        private AtomicDissolveOperation          atomicOperation  = null;

        /**

         * Cada elemento representa una feature del vectorial de entrada. Cuando se hace un dissolve de

         * esa feature con otra su posici?n en el array se pone a false para no volver a procesarla.

         */

        //private boolean[]                        analizedFeats    = null;

        public DissolveOperation(IDissolveRule criteria, AbstractSextanteGeoProcess p) {

                super(p);

                this.criteria = criteria;

        }

        public AtomicDissolveOperation getAtomicDissolveOperation() {

                if(atomicOperation == null)

                        atomicOperation = new AtomicDissolveOperation(process);

                return atomicOperation;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.geoprocess.algorithm.base.core.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.dal.feature.Feature)

         */

        public EditableFeature invoke(org.gvsig.fmap.geom.Geometry g, Feature feature) {

                if(g == null)

                        return lastEditFeature;

                getAtomicDissolveOperation().setFeature(feature);

                try {

                        getAtomicDissolveOperation().computesOperation(selectedGeom);

                        EditableFeature res = (EditableFeature)getAtomicDissolveOperation().getResult();

                        lastEditFeature = persister.addFeature(res, res.getDefaultGeometry());                                

                } catch (DataException e) {

                        Sextante.addErrorToLog(e);

                } catch (CreateGeometryException e) {

                        Sextante.addErrorToLog(e);

                }

                return lastEditFeature;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.geoprocess.algorithm.base.core.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.dal.feature.EditableFeature)

         */

        public void invoke(org.gvsig.fmap.geom.Geometry g, EditableFeature feature) {

                if(g == null)

                        return;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.geoprocess.algorithm.base.core.IOperation#getResult()

         */

        public Object getResult() {

                return lastEditFeature;

        }

        /**

         * Computes a complete operation over the input FeatureStore. The result of this operation

         * is stored in the output FeatureStore. 

         * @param inFeatStore

         *        Input FeatureStore

         * @param outFeatStore

         *        Output FeatureStore

         * @param attrNames

         *        List of attributes to build the output feature store

         * @param selectedGeom

         *        If it is true only the selected geometries will be processed

         * @throws DataException

         */

        @SuppressWarnings({ "deprecation" })

        public void computesGeometryOperation(FeatureStore inFeatStore,

                                                                        FeatureStore outFeatStore,

                                                                        String[] attrNames,

                                                                        boolean selectedGeom,

                                                                        boolean closeOutStore) throws DataException {

                this.inFeatureStore = inFeatStore;

                this.selectedGeom = selectedGeom;

                FeatureSet featuresSet = null;

                featuresSet = inFeatStore.getFeatureSet();

                setFeatureStore(outFeatStore, attrNames);

                DisposableIterator it = null;

                if(selectedGeom) {

            FeatureSelection ds = inFeatStore.getFeatureSelection();

            it = ds.iterator();

            numberOfFeatures = (int) ds.getSelectedCount();

                } else {

                        it = featuresSet.iterator();

                        numberOfFeatures = (int)featuresSet.getSize();

                }

        if (status != null && process != null) {

            status.setRangeOfValues(0, numberOfFeatures);

            process.setProgress(0, numberOfFeatures);

        }

                ArrayList<Feature> featList = new ArrayList<Feature>();

                int iCount = 0;

                while( it.hasNext() && !process.getTaskMonitor().isCanceled()) {

                        featList.add((Feature)it.next());

            if (status != null && process != null) {

                status.setCurValue(iCount);

                process.setProgress(iCount, numberOfFeatures);

            }

                        iCount ++;

                }

                getAtomicDissolveOperation().setTaskStatus(status);

                getAtomicDissolveOperation().setGeoProcess(process, numberOfFeatures);

                getAtomicDissolveOperation().setCriteria(criteria);

                getAtomicDissolveOperation().setGeometryList(geometries);

                getAtomicDissolveOperation().setFeatureStore(persister.getOutputFeatureStore(), null);

                getAtomicDissolveOperation().setFeatureList(featList);

                iCount = 0;

                while(featList.size() > 0 && !process.getTaskMonitor().isCanceled()) {

                        Feature feature = featList.remove(0);

                        geometries.clear();

                        if (status != null && process != null) {

                                status.setCurValue(numberOfFeatures - featList.size());

                                process.setProgress(numberOfFeatures - featList.size(), numberOfFeatures);

                        }

                        org.gvsig.fmap.geom.Geometry geom = feature.getDefaultGeometry();

                        if(!(geom instanceof NullGeometry)) {

                                geometries.add(GeometryUtil.geomToJTS(geom));

                                invoke(geom, feature);

                        }

                        continue;

                }

                if(closeOutStore && persister != null)

                        persister.end();

        }

        /**

         * Computes a complete operation over the input FeatureStore. The result of this operation

         * is stored in the output FeatureStore. 

         * @param inFeatStore

         *        Input FeatureStore

         * @param outFeatStore

         *        Output FeatureStore

         * @param attrNames

         *        List of attributes to build the output feature store

         * @param selectedGeom

         *        If it is true only the selected geometries will be processed

         * @throws DataException

         */

//        public void computesGeometryOperation(FeatureStore inFeatStore,

//                                                                        FeatureStore outFeatStore,

//                                                                        String[] attrNames,

//                                                                        boolean selectedGeom,

//                                                                        boolean closeOutStore) throws DataException {

//                this.inFeatureStore = inFeatStore;

//                this.selectedGeom = selectedGeom;

//                FeatureSet featuresSet = null;

//                featuresSet = inFeatStore.getFeatureSet();

//                

//                setFeatureStore(outFeatStore, attrNames);

//                DisposableIterator it = null;

//

//                if(selectedGeom) {

//            FeatureSelection ds = inFeatStore.getFeatureSelection();

//            it = ds.iterator();

//            numberOfFeatures = (int) ds.getSelectedCount();

//                } else {

//                        it = featuresSet.iterator();

//                        numberOfFeatures = (int)featuresSet.getSize();

//                }

//                

//        if (status != null && process != null) {

//            status.setRangeOfValues(0, numberOfFeatures);

//            process.setProgress(0, numberOfFeatures);

//        }

//                analizedFeats = new boolean[numberOfFeatures];

//                

//                getAtomicDissolveOperation().setCriteria(criteria);

//                getAtomicDissolveOperation().setGeometryList(geometries);

//                getAtomicDissolveOperation().setFeatureStore(persister.getOutputFeatureStore(), null);

//                getAtomicDissolveOperation().setAnalizedFeatureList(analizedFeats);

//                getAtomicDissolveOperation().setFeatureStore(inFeatureStore);

//                

//                int iCount = 0;

//                int featAnalized = 0;

//                while( it.hasNext() && !process.getTaskMonitor().isCanceled()) {

//                        Feature feature = (Feature)it.next();

//                        

//                        if(analizedFeats[featAnalized]) {

//                                featAnalized ++;

//                                continue;

//                        }

//                        

//                        analizedFeats[featAnalized] = true;

//                        List geomList = feature.getGeometries();

//                        geometries.clear();

//                        

//            if (status != null && process != null) {

//                status.setCurValue(iCount);

//                process.setProgress(iCount, numberOfFeatures);

//            }

//                        iCount ++;

//                        

//                        if(geomList == null) {

//                                org.gvsig.fmap.geom.Geometry geom = feature.getDefaultGeometry();

//                                geometries.add(GeometryUtil.geomToJTS(geom));

//                                invoke(geom, feature);

//                                featAnalized ++;

//                                continue;

//                        }

//

//                        Iterator<org.gvsig.fmap.geom.Geometry> itGeom = geomList.iterator();

//                        while(itGeom.hasNext() && !process.getTaskMonitor().isCanceled()) {

//                                org.gvsig.fmap.geom.Geometry g = itGeom.next();

//                                geometries.add(GeometryUtil.geomToJTS(g));

//                                invoke(g, feature);

//                        }

//                        

//                        featAnalized ++;

//                }

//        

//                if(closeOutStore && persister != null)

//                        persister.end();

//        }

}