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package org.tela_botanica.client.modeles.dao;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Iterator;
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import org.tela_botanica.client.cel2;
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import org.tela_botanica.client.interfaces.Rafraichissable;
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import org.tela_botanica.client.modeles.objets.Configuration;
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import org.tela_botanica.client.modeles.objets.ListeChampsEtendus;
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import org.tela_botanica.client.modeles.objets.ListeGroupesChampsEtendus;
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import org.tela_botanica.client.modeles.objets.ListeReferentielPerso;
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import org.tela_botanica.client.observation.ObservationModele;
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import com.google.gwt.core.client.Callback;
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import com.google.gwt.http.client.Request;
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import org.tela_botanica.client.util.RequestBuilderWithCredentials;
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import com.google.gwt.http.client.RequestCallback;
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import com.google.gwt.http.client.RequestException;
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import com.google.gwt.http.client.Response;
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import com.google.gwt.http.client.URL;
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import com.google.gwt.json.client.JSONArray;
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import com.google.gwt.json.client.JSONObject;
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import com.google.gwt.json.client.JSONParser;
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import com.google.gwt.json.client.JSONValue;
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import com.google.gwt.user.client.Window;
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public class ListeReferentielChampsEtendusDAO {
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	public static ListeGroupesChampsEtendus cacheGroupes;
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	public static HashMap<String, String> cacheClesLabels;
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	public static HashMap<String, String> cacheDescription = new HashMap<String, String>();
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	public static String prefixePageChampEtendu = "CE";
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	public ListeReferentielChampsEtendusDAO(ObservationModele obs) {
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	}
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	public void obtenirListeNomsChampsEtendus(final Rafraichissable r, String recherche) {
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		RequestBuilderWithCredentials rb = new RequestBuilderWithCredentials(RequestBuilderWithCredentials.GET, Configuration.getServiceBaseUrl() +
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												"/NomsChampsEtendus/cle"+
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												"?recherche="+URL.encode(recherche));
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		try {
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			rb.sendRequest(null, new RequestCallback() {
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				@Override
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				public void onResponseReceived(final Request request,
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						final Response response) {
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					ListeChampsEtendus labelCles = new ListeChampsEtendus(response.getText());
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					r.rafraichir(labelCles, true);
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				}
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				@Override
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				public void onError(Request request, Throwable exception) {
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					// TODO Auto-generated method stub
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				}
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			});
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		} catch (RequestException e) {
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			e.printStackTrace();
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		}
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	}
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	public void obtenirListeValeursChampEtendu(final Rafraichissable r, String cle, String recherche) {
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		RequestBuilderWithCredentials rb = new RequestBuilderWithCredentials(RequestBuilderWithCredentials.GET, Configuration.getServiceBaseUrl() +
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												"/NomsChampsEtendus/valeur"+
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												"?cle="+URL.encode(cle)+"&recherche="+URL.encode(recherche));
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		try {
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			rb.sendRequest(null, new RequestCallback() {
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				@Override
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				public void onResponseReceived(final Request request,
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						final Response response) {
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					ArrayList<String> valeurs = new ArrayList<String>();
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					final JSONValue responseValue = JSONParser.parse(response.getText());
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					JSONArray reponse = null;
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					if ((reponse = responseValue.isArray()) != null) {
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						for(int i = 0; i < reponse.size(); i++) {
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							valeurs.add(reponse.get(i).isString().stringValue());
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						}
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					}
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					r.rafraichir(valeurs, true);
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				}
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				@Override
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				public void onError(Request request, Throwable exception) {
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					// TODO Auto-generated method stub
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				}
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			});
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		} catch (RequestException e) {
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			e.printStackTrace();
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		}
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	}
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	public void obtenirGroupesChampsEtendus(final Rafraichissable r) {
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		if(cacheGroupes == null) {
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			RequestBuilderWithCredentials rb = new RequestBuilderWithCredentials(RequestBuilderWithCredentials.GET, Configuration.getServiceBaseUrl() +
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					"/CatalogueChampsEtendus/groupes");
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			try {
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				rb.sendRequest(null, new RequestCallback() {
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				@Override
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				public void onResponseReceived(final Request request,
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				final Response response) {
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					ListeGroupesChampsEtendus valeurs = new ListeGroupesChampsEtendus(response.getText());
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					cacheGroupes = valeurs;
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					r.rafraichir(valeurs, true);
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				}
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				@Override
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				public void onError(Request request, Throwable exception) {
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					// TODO Auto-generated method stub
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				}
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			});
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			} catch (RequestException e) {
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				e.printStackTrace();
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			}
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		} else {
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			r.rafraichir(cacheGroupes, true);
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		}
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	}
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	public void obtenirCatalogueChampsEtendus(final Rafraichissable r) {
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		if(cacheClesLabels == null) {
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			RequestBuilderWithCredentials rb = new RequestBuilderWithCredentials(RequestBuilderWithCredentials.GET, Configuration.getServiceBaseUrl() +
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					"/CatalogueChampsEtendus/champs");
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			try {
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				rb.sendRequest(null, new RequestCallback() {
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				@Override
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				public void onResponseReceived(final Request request,
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				final Response response) {
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					try {
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						JSONValue champsJson = JSONParser.parseStrict(response.getText());
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						JSONArray champs = champsJson.isArray();
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						cacheClesLabels = new HashMap<String, String>(champs.size());
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						for (int i = 0; i < champs.size(); i++) {
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							JSONObject champ = champs.get(i).isObject();
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							String cle = champ.get("cle").isString().stringValue();
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							String label = champ.get("label").isString().stringValue();
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							cacheClesLabels.put(cle, label);
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							r.rafraichir(cacheClesLabels, true);
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						}
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					} catch (Exception e) {
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						// TODO: handle exception
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					}
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				}
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				@Override
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				public void onError(Request request, Throwable exception) {
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					// TODO Auto-generated method stub
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				}
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			});
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			} catch (RequestException e) {
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				e.printStackTrace();
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			}
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		} else {
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			r.rafraichir(cacheClesLabels, true);
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		}
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	}
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	public static void telechargerDescriptionWikini(final String champ, final Callback<String, String> callback) {
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		String url = Configuration.getWikiDescriptionChampsEtendusRestUrl()+prefixePageChampEtendu+champ+"?";
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		String options = Configuration.getWikiDescriptionChampsEtendusUrlOptions();
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		if(cacheDescription.containsKey(champ)) {
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			callback.onSuccess(cacheDescription.get(champ));
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		}
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		RequestBuilderWithCredentials rb = new RequestBuilderWithCredentials(RequestBuilderWithCredentials.GET,
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				url + options);
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		try {
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			rb.sendRequest(null, new RequestCallback() {
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				@Override
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				public void onResponseReceived(final Request request,
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						final Response response) {
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					final JSONValue responseValue = JSONParser.parse(response.getText());
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					String description = "";
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					JSONObject reponse = responseValue.isObject();
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					if(reponse != null && reponse.get("texte") != null && reponse.get("texte").isString() != null) {
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						description = reponse.get("texte").isString().stringValue();
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					}
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					cacheDescription.put(champ, description);
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					callback.onSuccess(description);
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				}
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				@Override
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				public void onError(Request request, Throwable exception) {
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					cacheDescription.put(champ, "");
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					callback.onFailure("");
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				}
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			});
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		} catch (RequestException e) {
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			e.printStackTrace();
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		}
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	}
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	// Pour obliger la page wiki a avoir été créée avant de rediriger, on utilise une requete synchrone
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	private static native String effectuerRequeteSynchrone(String url, String contenu, String typeRequete)/*-{
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		// tant pis pour les vieux navigateurs, ie6 etc...
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		// tous ceux que l'on supporte connaissent XMLHttpRequest
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    	var xhReq = new XMLHttpRequest();
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    	xhReq.open(typeRequete, url, false);
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    	if(typeRequete == "POST") xhReq.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
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    	xhReq.send(contenu);
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    	var serverResponse = xhReq.status + xhReq.responseText;
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    	return serverResponse;
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	}-*/;
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	public static void creerPageWikini(final String champ) {
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		String url = Configuration.getWikiDescriptionChampsEtendusRestUrl()+prefixePageChampEtendu+champ+"?";
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		String options = Configuration.getWikiDescriptionChampsEtendusUrlOptions();
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		String pageTpl = Configuration.getWikiDescriptionChampsEtendusUrlOptionsPageTpl();
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		effectuerRequeteSynchrone(url + options + pageTpl, "", "GET");
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	}
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	public static String obtenirUrlEditionDescriptionWiki(String cle) {
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		String url = Configuration.getWikiDescriptionChampsEtendusPageUrl()+prefixePageChampEtendu+cle+"/edit";
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		return url;
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	}
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}