Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 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 3 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.

 */

package org.gvsig.exportto.impl;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.gvsig.exportto.ExporttoService;

import org.gvsig.exportto.ExporttoServiceException;

import org.gvsig.exportto.ExporttoServiceFinishAction;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataServerExplorer;

import org.gvsig.fmap.dal.NewDataStoreParameters;

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

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

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.tools.dispose.DisposeUtils;

import org.gvsig.tools.task.AbstractMonitorableTask;

/**

 * Default {@link ExporttoService} implementation.

 *

 * @author gvSIG Team

 * @version $Id$

 */

public class DefaultExporttoService extends AbstractMonitorableTask implements

        ExporttoService {

    private DataServerExplorer dataServerExplorer;

    private NewDataStoreParameters newDataStoreParameters;

    private ExporttoServiceFinishAction exporttoServiceFinishAction;

    /**

     * {@link DefaultExporttoService} constructor

     */

    public DefaultExporttoService(DataServerExplorer dataServerExplorer,

            NewDataStoreParameters newDataStoreParameters) {

        super(ToolsLocator.getI18nManager().getTranslation("Exportto"));

        this.dataServerExplorer = dataServerExplorer;

        this.newDataStoreParameters = newDataStoreParameters;

    }

    public void export(FeatureStore featureStore, IProjection projection,

            FeatureSet featureSet) throws ExporttoServiceException {

        // TODO Auto-generated method stub

    }

    public void export(FeatureSet featureSet) throws ExporttoServiceException {

        String providerName = newDataStoreParameters.getDataStoreName();

        String explorerName = dataServerExplorer.getProviderName();

        DisposableIterator it = null;

        FeatureStore target = null;

        EditableFeature newfeature = null;

        try {

            taskStatus.setRangeOfValues(0, featureSet.getSize());

            DataManager dataManager = DALLocator.getDataManager();

            dataManager.newStore(explorerName, providerName,

                    newDataStoreParameters, true);

            target

                    = (FeatureStore) dataManager.openStore(providerName,

                            newDataStoreParameters);

            FeatureType targetType = target.getDefaultFeatureType();

            target.edit(FeatureStore.MODE_APPEND);

            it = featureSet.fastIterator();

            IProjection targetProjection;

            FeatureAttributeDescriptor defaultGeom = target.getDefaultFeatureType().getDefaultGeometryAttribute();

            if (defaultGeom!=null) {

                    targetProjection = defaultGeom.getSRS();

            }

            else {

                    targetProjection = null;

            }

            long featureCount = 0;

            while (it.hasNext()) {

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

                newfeature = target.createNewFeature(targetType, feature);

                // ================================================

                // Reprojection stuff

                Geometry reproj_geom = null;

                IProjection sourceProjection = feature.getDefaultSRS();

                ICoordTrans coord_trans = null;

                // this comparison is perhaps too preventive

                // we could  have two instances of same projection

                // so we would do more computations than needed

                if (sourceProjection != null

                        && targetProjection != null

                        && sourceProjection != targetProjection) {

                    coord_trans = sourceProjection.getCT(targetProjection);

                    reproj_geom = feature.getDefaultGeometry();

                    reproj_geom = reproj_geom.cloneGeometry();

                    reproj_geom.reProject(coord_trans);

                    newfeature.setDefaultGeometry(reproj_geom);

                }

                // ================================================

                target.insert(newfeature);

                featureCount++;

                this.taskStatus.setCurValue(featureCount);

                if (this.taskStatus.isCancellationRequested()) {

                    return;

                }

            }

            target.finishEditing();

            this.taskStatus.terminate();

            this.taskStatus.remove();

        } catch (Exception e) {

            throw new ExporttoServiceException(e, newfeature);

        } finally {

            if (target != null) {

                target.dispose();

            }

            if (it != null) {

                it.dispose();

            }

            if (featureSet != null) {

                featureSet.dispose();

            }

            DisposeUtils.dispose(it);

        }

        if (exporttoServiceFinishAction != null) {

            exporttoServiceFinishAction.finished(

                    newDataStoreParameters.getDataStoreName(),

                    newDataStoreParameters);

        }

    }

    public void setFinishAction(

            ExporttoServiceFinishAction exporttoServiceFinishAction) {

        this.exporttoServiceFinishAction = exporttoServiceFinishAction;

    }

}