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annotate flys-client/src/main/java/de/intevation/flys/client/server/UserServiceImpl.java @ 581:210339fd1a34

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Removed more expensive XPath. flys-client/trunk@2169 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 20 Jun 2011 16:25:48 +0000
parents 924da6695800
children ab8eb2f544f2
rev   line source
2
bc5d4d2297b9 Introduced a service that retrieves the user who is currently logged in. This user is displayed in the menu bar.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.client.server;
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2
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3 import javax.xml.xpath.XPathConstants;
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4
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5 import org.w3c.dom.Document;
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6 import org.w3c.dom.Node;
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7 import org.w3c.dom.NodeList;
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8
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9 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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10
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11 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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12 import de.intevation.artifacts.common.utils.XMLUtils;
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13
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14 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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15 import de.intevation.artifacts.httpclient.http.HttpClient;
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16 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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17
bc5d4d2297b9 Introduced a service that retrieves the user who is currently logged in. This user is displayed in the menu bar.
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18 import de.intevation.flys.client.client.services.UserService;
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19 import de.intevation.flys.client.shared.exceptions.AuthenticationException;
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20 import de.intevation.flys.client.shared.model.DefaultUser;
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21 import de.intevation.flys.client.shared.model.User;
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23
bc5d4d2297b9 Introduced a service that retrieves the user who is currently logged in. This user is displayed in the menu bar.
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24 /**
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25 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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26 */
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27 public class UserServiceImpl
bc5d4d2297b9 Introduced a service that retrieves the user who is currently logged in. This user is displayed in the menu bar.
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28 extends RemoteServiceServlet
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29 implements UserService
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30 {
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31 public static final String ERROR_NO_SUCH_USER = "error_no_such_user";
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32
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924da6695800 Each service is now called with the name of the current locale to set the request object's locale manually in the HttpClient.
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33 public User getCurrentUser(String serverUrl, String locale)
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34 throws AuthenticationException
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35 {
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36 HttpClient client = new HttpClientImpl(serverUrl);
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37
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38 try {
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39 Document users = (Document) client.listUsers();
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40
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41 String XPATH_USERS = "/art:users/art:user";
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42
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43 NodeList theUsers = (NodeList) XMLUtils.xpath(
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44 users,
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45 XPATH_USERS,
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46 XPathConstants.NODESET,
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47 ArtifactNamespaceContext.INSTANCE);
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48
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49 if (theUsers != null && theUsers.getLength() > 0) {
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50 Node user = theUsers.item(0);
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51
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52 String uuid = XMLUtils.xpathString(
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53 user, "@art:uuid", ArtifactNamespaceContext.INSTANCE);
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54 String name = XMLUtils.xpathString(
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55 user, "@art:name", ArtifactNamespaceContext.INSTANCE);
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56
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57 return new DefaultUser(uuid, name);
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58 }
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59 }
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60 catch (ConnectionException ce) {
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61 System.err.println(ce.getLocalizedMessage());
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62 }
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63
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64 System.err.println("No users existing in the server.");
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65 throw new AuthenticationException(ERROR_NO_SUCH_USER);
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66 }
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67 }
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68 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org