| gvSIG desktop 1

/*

 * Created on 11-abr-2006

 *

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

 *

 * Copyright (C) 2004 IVER T.I. and 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: DissolveGeoprocessController.java 5628 2006-06-02 18:21:28Z azabala $

* $Log$

* Revision 1.3  2006-06-02 18:21:28  azabala

* *** empty log message ***

*

* Revision 1.2  2006/05/25 08:21:48  jmvivo

* A?adida peticion de confirmacion para sobreescribir el fichero de salida, si este ya existiera

*

* Revision 1.1  2006/05/24 21:11:14  azabala

* primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing

*

* Revision 1.2  2006/05/08 15:35:32  azabala

* *** empty log message ***

*

* Revision 1.1  2006/04/11 17:55:51  azabala

* primera version en cvs

*

*

*/

package com.iver.cit.gvsig.geoprocess.dissolve;

import java.io.File;

import java.util.HashMap;

import java.util.Map;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.drivers.SHPLayerDefinition;

import com.iver.cit.gvsig.fmap.edition.ShpSchemaManager;

import com.iver.cit.gvsig.fmap.edition.writers.shp.ShpWriter;

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

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

import com.iver.cit.gvsig.geoprocess.core.fmap.AbstractGeoprocessController;

import com.iver.cit.gvsig.geoprocess.core.fmap.GeoprocessException;

import com.iver.cit.gvsig.geoprocess.core.fmap.IGeoprocess;

import com.iver.cit.gvsig.geoprocess.core.gui.AddResultLayerTask;

import com.iver.cit.gvsig.geoprocess.core.gui.IGeoprocessPanel;

import com.iver.cit.gvsig.geoprocess.dissolve.fmap.DissolveGeoprocess;

import com.iver.cit.gvsig.geoprocess.dissolve.gui.GeoProcessingDissolvePanel;

import com.iver.utiles.swing.threads.IMonitorableTask;

import com.iver.utiles.swing.threads.MonitorableDecoratorMainFirst;

public class DissolveGeoprocessController extends AbstractGeoprocessController {

        private GeoProcessingDissolvePanel geoProcessingDissolvePanel;

        private DissolveGeoprocess dissolve;

        public void setView(IGeoprocessPanel viewPanel) {

                this.geoProcessingDissolvePanel =

                        (GeoProcessingDissolvePanel) viewPanel;

        }

        public IGeoprocess getGeoprocess() {

                return dissolve;

        }

        public boolean launchGeoprocess() {

                FLyrVect inputLayer = geoProcessingDissolvePanel.getInputLayer();

                FLayers layers = geoProcessingDissolvePanel.getFLayers();

                File outputFile = geoProcessingDissolvePanel.getOutputFile();

                if (outputFile == null || (outputFile.getAbsolutePath().length() == 0)) {

                        String error = PluginServices.getText(this, "Error_entrada_datos");

                        String errorDescription = PluginServices.getText(this, "Error_seleccionar_resultado");

                        geoProcessingDissolvePanel.error(errorDescription, error);

                        return false;

                }

                if (outputFile.exists()) {

                        if (!geoProcessingDissolvePanel.askForOverwriteOutputFile(outputFile)) {

                                return false;

                        }

                }

                String dissolveField = geoProcessingDissolvePanel

                                .getDissolveFieldName();

                boolean onlySelection = geoProcessingDissolvePanel

                                .isDissolveOnlySelected();

                boolean onlyAdjacents = geoProcessingDissolvePanel.onlyAdjacentSelected();

                DissolveGeoprocess dissolve = new DissolveGeoprocess(inputLayer,

                                dissolveField);

                // Antes de crear el esquema vemos la seleccion del usuario

                Map fields_functions = geoProcessingDissolvePanel.getFieldFunctionMap();

                dissolve.setFieldsFunctions(fields_functions);

                HashMap params = new HashMap();

                params.put("layer_selection", new Boolean(onlySelection));

                params.put("only_adjacents", new Boolean(onlyAdjacents));

                try {

                        dissolve.setParameters(params);

                } catch (GeoprocessException e1) {

                        String error = PluginServices.getText(this, "Error_escritura_resultados");

                        String errorDescription = PluginServices.getText(this, "Error_preparar_escritura_resultados");

                        geoProcessingDissolvePanel.error(errorDescription, error);

                        return false;

                }

                SHPLayerDefinition definition = (SHPLayerDefinition) dissolve

                                .createLayerDefinition();

                definition.setFile(outputFile);

                ShpSchemaManager schemaManager = new ShpSchemaManager();

                ShpWriter writer = null;

                try {

                        schemaManager.createOrAlterSchema(definition);

                        writer = new ShpWriter();

                        writer.setFile(outputFile);

                        writer.initialize(definition);

                } catch (Exception e) {

                        String error = PluginServices.getText(this, "Error_escritura_resultados");

                        String errorDescription = PluginServices.getText(this, "Error_preparar_escritura_resultados");

                        geoProcessingDissolvePanel.error(errorDescription, error);

                        return false;

                } 

                dissolve.setResultLayerProperties(writer, schemaManager);

                try {

                        dissolve.checkPreconditions();

                        IMonitorableTask task1 = dissolve.createTask();

                        AddResultLayerTask task2 = new AddResultLayerTask(dissolve);

                        task2.setLayers(layers);

                        MonitorableDecoratorMainFirst globalTask = new MonitorableDecoratorMainFirst(task1,

                                        task2);

                        //if dissolving is spatial based, checks spatial

                        //index existency

                        if(geoProcessingDissolvePanel.onlyAdjacentSelected()){

                                if(inputLayer.getISpatialIndex() == null){

                                        final IMonitorableTask sptIdxTask = 

                                                geoProcessingDissolvePanel.askForSpatialIndexCreation(inputLayer);

                                        if(sptIdxTask != null){

                                                PluginServices.backgroundExecution(

                                                                new Runnable(){

                                                        public void run() {

                                                                PluginServices.

                                                                cancelableBackgroundExecution(sptIdxTask);        

                                                        }}

                                                );

                                        }

                                }//if

                        }

                        if (globalTask.preprocess())

                                PluginServices.cancelableBackgroundExecution(globalTask);

                } catch (GeoprocessException e) {

                        String error = PluginServices.getText(this, "Error_ejecucion");

                        String errorDescription = PluginServices.getText(this, "Error_fallo_geoproceso");

                        geoProcessingDissolvePanel.error(errorDescription, error);

                        return false;

                }

                return true;

        }

}