| 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;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

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

/**

 * DOCUMENT ME!

 *

 * @author Vicente Caballero Navarro

 */

public class AttributeManager {

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

    protected ExpansionAdapter expansionAdapter;

    protected ArrayList deletedAttributes = new ArrayList();//<String>

    protected int size=0;

    protected int count=0;

        private FeatureType featureType;

        private FeatureType currentFeatureType;

    public AttributeManager(ExpansionAdapter expansionAdapter,FeatureType featureType){

            this.expansionAdapter=expansionAdapter;

            this.featureType=featureType;

            this.currentFeatureType=null;

    }

    public void deleteAttribute(Integer id) {

        deletedAttributes.add(id);

        size--;

        this.currentFeatureType=null;

    }

    /**

     * DOCUMENT ME!

     *

     * @param feature DOCUMENT ME!

     */

    public void addAttribute(FeatureAttributeDescriptor attributeDescriptor) {

        ((AttributeDescriptor)attributeDescriptor).setOrdinal(count+((DefaultFeatureType)featureType).getCount());

        count++;

            int pos = expansionAdapter.addObject(attributeDescriptor);

        relations.put(new Integer(attributeDescriptor.ordinal()), new Integer(pos));

        size++;

        this.currentFeatureType=null;

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     */

    public void deleteLastAttribute(Integer id) {

        expansionAdapter.deleteLastObject();

        relations.remove(id);

        size--;

        this.currentFeatureType=null;

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public boolean contains(Integer id) {

        return relations.containsKey(id);

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public FeatureAttributeDescriptor getAttribute(Integer id) {

        int num = ((Integer) relations.get(id)).intValue();

        return (FeatureAttributeDescriptor)expansionAdapter.getObject(num);

    }

    /**

     * DOCUMENT ME!

     *

     * @param feature DOCUMENT ME!

     * @param oldFeature DOCUMENT ME!

     */

    public void updateAttribute(FeatureAttributeDescriptor attributeDescriptor) {

        deletedAttributes.add(new Integer(attributeDescriptor.ordinal()));

        int num = expansionAdapter.updateObject(attributeDescriptor);

        /*

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

         * fichero de expansi?n.

         */

        ((AttributeDescriptor)attributeDescriptor).setOrdinal(num);

        relations.put(new Integer(attributeDescriptor.ordinal()), new Integer(num));

        this.currentFeatureType=null;

    }

    /**

     * DOCUMENT ME!

     *

     * @param id DOCUMENT ME!

     */

    public void restoreAttribute(Integer id) {

        deletedAttributes.remove(id);

        size++;

        this.currentFeatureType=null;

    }

    public int getNum(){

            return size;

    }

        public FeatureType getFeatureType() {

                if (this.currentFeatureType == null){

                        DefaultFeatureType dft=(DefaultFeatureType)featureType.cloneFeatureType();

                        dft.clear();

                        Iterator iter=featureType.iterator();

                        while (iter.hasNext()) {

                                FeatureAttributeDescriptor descriptor= (FeatureAttributeDescriptor) iter.next();

                                if (!deletedAttributes.contains(new Integer(descriptor.ordinal()))){

                                        dft.addWithoutOrdinal(descriptor.cloneAttribute());

                                }

                        }

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

                                FeatureAttributeDescriptor descriptor=(FeatureAttributeDescriptor)expansionAdapter.getObject(i);

                                if (!deletedAttributes.contains(new Integer(descriptor.ordinal()))){

                                        dft.addWithoutOrdinal(descriptor.cloneAttribute());

                                }

                        }

                        this.currentFeatureType=dft;

                }

                return this.currentFeatureType;

        }

        public void clear() {

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

            expansionAdapter.close();

            deletedAttributes.clear();//<String>

            size=0;

            this.currentFeatureType=null;

        }

}