| gvSIG desktop 1

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

 *

 * Copyright (C) 2005 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

 */

package org.gvsig.fmap.data.feature.impl;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import org.gvsig.fmap.data.exceptions.DataException;

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

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

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

import org.gvsig.fmap.data.feature.FeatureID;

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

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

import org.gvsig.fmap.data.feature.impl.expansionadapter.ExpansionAdapter;

/**

 * DOCUMENT ME!

 *

 * @author Vicente Caballero Navarro

 */

public class FeatureManager {

    protected HashMap relations = new HashMap();//<FeatureID,Integer>

    protected ExpansionAdapter expansionAdapter;

    protected ArrayList deletedFeatures = new ArrayList();//<FeatureID>

    protected int num=0;

    public FeatureManager(ExpansionAdapter expansionAdapter){

            this.expansionAdapter=expansionAdapter;

    }

    public void deleteFeature(FeatureID id) {

        deletedFeatures.add(id);

               relations.remove(id);

        num--;

    }

    /**

     * DOCUMENT ME!

     *

     * @param feature DOCUMENT ME!

     */

    public void addFeature(Feature feature) {

        int pos = expansionAdapter.addObject(feature);

        relations.put(feature.getID(), new Integer(pos));

        num++;

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     */

    public void deleteLastFeature(FeatureID id) {

        expansionAdapter.deleteLastObject();

        relations.remove(id);

        num--;

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public boolean contains(FeatureID id) {

        return relations.containsKey(id);

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     * @throws IsNotFeatureSettingException

     */

    public Feature getFeature(FeatureID id, FeatureStore store,

                        FeatureType featureType) throws DataException {

            Integer intNum =((Integer) relations.get(id));

            if (intNum == null){

                    return null;

            }

        int num = intNum.intValue();

        Feature feature=(Feature)expansionAdapter.getObject(num);

        if (featureType== null){

                featureType = store.getDefaultFeatureType();

        }

               return getCorrectFeature(feature, store,featureType);

    }

    private Feature getCorrectFeature(Feature feature, FeatureStore store,

                        FeatureType featureType) throws DataException {

             Iterator iterator=featureType.iterator();

         EditableFeature newFeature=store.createFeature(featureType, false);

         FeatureType orgType = feature.getType();

         int orgIndex;

         while (iterator.hasNext()) {

                         FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) iterator.next();

                         orgIndex = orgType.getIndex(fad.getName());

                         if (orgIndex<0){

                                 continue;

                         }

                         if (featureType.getDefaultGeometryAttributeName().equals(

                                                                        fad.getName())){

                                 newFeature.setGeometry(fad.getIndex(), feature.getGeometry(orgIndex));

                         } else{

                                 newFeature.set(fad.getIndex(), feature.get(orgIndex));

                         }

                 }

         return newFeature.getNotEditableCopy();

        }

        /**

     * DOCUMENT ME!

     *

     * @param feature DOCUMENT ME!

     * @param oldFeature DOCUMENT ME!

     */

    public void updateFeature(Feature feature, Feature oldFeature) {

        deletedFeatures.add(oldFeature.getID());

        int num = expansionAdapter.updateObject(feature);

        /*

         * Actualiza la relaci?n del ?ndice de la geometr?a al ?ndice en el

         * fichero de expansi?n.

         */

        relations.put(feature.getID(), new Integer(num));

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     */

    public void restoreFeature(FeatureID id) {

        deletedFeatures.remove(id);

        num++;

    }

    public int getNum(){

            return num;

    }

    public Feature getFeature(int i, FeatureStore store, FeatureType featureType)

                        throws DataException {

            Feature feature=(Feature)expansionAdapter.getObject(i);

            return getCorrectFeature(feature,store,featureType);

    }

    public boolean isDeleted(Feature feature){

            return deletedFeatures.contains(feature.getID());

    }

        public void clear() {

                relations.clear();//<FeatureID,Integer>

            expansionAdapter.close();

            deletedFeatures.clear();//<FeatureID>

            num=0;

        }

//        public FeatureCollection getDataCollection(DataCollection originalCollection, FeatureType type, String filter, String order) {

//                MemoryFeatureCollection memoryCollection=new MemoryFeatureCollection();

////                TODO Filtrar y ordenar, quedar? tambi?n pendiente el FeatureType que se pasa como

//                //par?metro ya que aqu? lo ?nico que introducimos al DataCollection son FeatureID,

//                //todav?a no creamos IFeatures

//                for (int i=0;i<relations.size();i++){

//                        Feature feature=(Feature)expansionAdapter.getObject(i);

//                        if (!deletedFeatures.contains(feature.getID())){

//                                memoryCollection.add(feature);

//                        }

//                }

//                Iterator iter=originalCollection.iterator();

//                int i=0;

//                featureStore.open();

//                while (iter.hasNext()) {

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

//                        if (!deletedFeatures.contains(feature.getID())){

//                                memoryCollection.add(feature);

//                        }

//                        i++;

//                }

//

//                //TODO en el filtro de las features originales hay que a?adir, que no muestre las que est?n el el HashMap deletedFeatures

////                FeatureCollection featureCollection=(FeatureCollection)featureStore.getDataCollection(type,filter,order);

//

//

//                EditingFeatureCollection collection=new EditingFeatureCollection(originalCollection, memoryCollection,type);

////                collection.

////                MemoryFeatureCollection collection=new MemoryFeatureCollection();

//                //TODO Filtrar y ordenar, quedar? tambi?n pendiente el FeatureType que se pasa como

//                //par?metro ya que aqu? lo ?nico que introducimos al DataCollection son FeatureID,

//                //todav?a no creamos IFeatures

////                featureStore.createDefaultFeature()

////                for (int i=0;i<driver.getFeatureCount();i++){

////                        MemoryFeatureID id=new MemoryFeatureID(driver.getFeatureByPosition(type,i));

////                        collection.add(id);

////                }

//                return collection;

//

//        }

}