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 com.vividsolutions.jts.geom.Geometry;

import es.unex.sextante.core.Sextante;

import java.util.Iterator;

/**

 * 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(selectedGeomInput);

            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 selectedGeomInput,

            boolean selectedGeomOutput,

            boolean closeOutStore) throws DataException {

        this.inFeatureStore = inFeatStore;

        this.selectedGeomInput = selectedGeomInput;

        this.selectedGeomOverlay = selectedGeomOutput;

        FeatureSet featuresSet = null;

        featuresSet = inFeatStore.getFeatureSet();

        setFeatureStore(outFeatStore, attrNames);

        Iterator it = null;

        if (selectedGeomInput) {

            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();

//        }

}