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package org.tela_botanica.client.modeles.dao;

import org.tela_botanica.client.interfaces.Rafraichissable;
import org.tela_botanica.client.modeles.objets.Configuration;
import org.tela_botanica.client.observation.ObservationModele;

import com.google.gwt.http.client.Request;
import org.tela_botanica.client.util.RequestBuilderWithCredentials;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.json.client.JSONValue;

/**
 * DAO d'accès a une observation
 * 
 * @author aurelien
 * 
 */
public class ImageGeneriqueVueAsynchroneDAO {

        /**
         * Le modele associé au DAO
         */
        private ObservationModele observationModele = null;

        public ImageGeneriqueVueAsynchroneDAO(ObservationModele obs) {
                observationModele = obs;
        }



        /**
         * Recherche Image  associee a un nom 
         * @param r
         * @param identifiant
         * @param numeroNomenclaturalSaisiObservation
         */
        
        public void obtenirURLImage(final Rafraichissable r, String referentielTaxo, String numeroNomenclaturalSaisiObservation) {
                String referentielDefaut =  Configuration.getReferentielsDispos().get(0).getCode();
                referentielTaxo = (referentielTaxo != null && !referentielTaxo.isEmpty()) ? referentielTaxo : referentielDefaut;
                
                // on envoie le get asynchrone
                RequestBuilderWithCredentials rb = new RequestBuilderWithCredentials(RequestBuilderWithCredentials.GET,Configuration.getServiceBaseUrl()
                                +"/NameImage/"+referentielTaxo+"/"+numeroNomenclaturalSaisiObservation) ;
                
                try {
                        rb.sendRequest(null, new RequestCallback() {

                                @Override
                                public void onError(Request request, Throwable exception) {
                                        // TODO Auto-generated method stub
                                        
                                }

                                @Override
                                public void onResponseReceived(Request request,
                                                Response response) {
                                        
                                        try {
                                                JSONValue responseValue = JSONParser.parse(response.getText());
                                                JSONArray reponse;
                                                String urlImage=null;
                                                String urlImageMax=null;
        
                                                if ((reponse = responseValue.isArray()) != null) {
                                                        // Url Image
                                                        urlImage= ((JSONString)reponse.get(0)).stringValue();
                                                        urlImageMax= ((JSONString)reponse.get(1)).stringValue();
                                                }
                                                else {
                                                        urlImage="";
                                                        urlImageMax="";
                                                }
                                                
                                                r.rafraichir(new String[]{urlImage,urlImageMax},true);  
                                        } catch (Exception e) {
                                                // TODO: handle exception
                                        }
                                }
                        }) ;

                } catch (RequestException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
        }
        

                        
}