| gvSIG desktop 1

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * 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.

 * 

 */

/*

 * AUTHORS (In addition to CIT):

 * 2009 {Iver T.I.}   {Task}

 */

package org.gvsig.wfs.gui.panels.model;

import java.text.Collator;

import java.util.ArrayList;

import java.util.Collections;

import java.util.HashMap;

import java.util.Hashtable;

import java.util.Iterator;

import java.util.Locale;

import org.gvsig.fmap.dal.serverexplorer.wfs.WFSServerExplorer;

import org.gvsig.remoteclient.wfs.WFSFeature;

import org.gvsig.remoteclient.wfs.exceptions.WFSException;

import org.gvsig.utils.StringComparator;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public class WFSSelectedFeatureManager {

        private static final Logger LOG = LoggerFactory.getLogger(WFSSelectedFeatureManager.class);

    private WFSServerExplorer serverExplorer = null;

        //To keep the array of features

        private Hashtable hashFeatures;

        private WFSSelectedFeature[] featuresList;

        private static HashMap featureManagers = new HashMap();

        public static WFSSelectedFeatureManager getInstance(WFSServerExplorer serverExplorer){

                if (featureManagers.containsKey(serverExplorer)){

                        return (WFSSelectedFeatureManager)featureManagers.get(serverExplorer);

                }

                WFSSelectedFeatureManager selectedFeatureManager = new WFSSelectedFeatureManager(serverExplorer);

                featureManagers.put(serverExplorer, selectedFeatureManager);

                return selectedFeatureManager;

        }

        /**

         * @param serverExplorer

         */

        private WFSSelectedFeatureManager(WFSServerExplorer serverExplorer) {

                super();

                this.serverExplorer = serverExplorer;

        }

        public WFSSelectedFeature getFeatureInfo(String nameSpace, String layerName){

                if (hashFeatures == null){

                        getLayerList();

                }

                WFSSelectedFeature selectedFeature = (WFSSelectedFeature)hashFeatures.get(layerName);

                try {

                        WFSFeature feature = serverExplorer.getFeatureInfo(nameSpace, layerName);

                        selectedFeature.setFeature(feature);

                } catch (WFSException e) {

                        // The feature doesn't has fields

                        LOG.error("Impossible to get the feature", e);

                }                

                return selectedFeature;                

        }

        public WFSSelectedFeature[] getLayerList(){

                if (hashFeatures == null) {

                        hashFeatures = new Hashtable();

                        Hashtable wfsFeatures  = serverExplorer.getFeatures();

                        StringComparator stringComparator = new StringComparator();

                        // Set spanish rules and with case sensitive

                        Collator collator = Collator.getInstance(new Locale("es_ES"));                

                        stringComparator.setLocaleRules(stringComparator.new LocaleRules(true, collator));

                        stringComparator.setCaseSensitive(false);

                        ArrayList keysList = new ArrayList(wfsFeatures.keySet());

                        Collections.sort(keysList, stringComparator);

                        Iterator keys = keysList.iterator();

                        featuresList = new WFSSelectedFeature[wfsFeatures.size()];

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

                                WFSFeature feature = (WFSFeature)wfsFeatures.get(keys.next());

                                WFSSelectedFeature selectedFeature = new WFSSelectedFeature(feature);

                                featuresList[i] = selectedFeature;

                                hashFeatures.put(selectedFeature.getName(), selectedFeature);

                        }

                }

                return featuresList;

        }

}