Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/DescribeCollectionServiceImpl.java @ 5861:172338b1407f

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GWT client: Added copyright header.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:30:15 +0200
parents 5aa05a7a34b7
children ea9eef426962
rev   line source
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172338b1407f GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.server;
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10
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11 import org.w3c.dom.Document;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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16
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17 import org.dive4elements.artifacts.common.utils.ClientProtocolUtils;
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18
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19 import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException;
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20 import org.dive4elements.artifacts.httpclient.http.HttpClient;
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21 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl;
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22 import org.dive4elements.artifacts.httpclient.http.response.DocumentResponseHandler;
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23
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24 import org.dive4elements.river.client.shared.exceptions.ServerException;
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25 import org.dive4elements.river.client.shared.model.Collection;
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26
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27 import org.dive4elements.river.client.client.services.DescribeCollectionService;
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28
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29
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30 /**
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31 * This service implements a method that queries the DESCRIBE document of a
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32 * specific collection and returns a Collection object with the information of
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33 * the document.
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34 *
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35 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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36 */
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37 public class DescribeCollectionServiceImpl
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38 extends RemoteServiceServlet
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39 implements DescribeCollectionService
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40 {
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41 private static final Logger logger =
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42 Logger.getLogger(DescribeCollectionServiceImpl.class);
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43
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44
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45 /** The error message key that is thrown if an error occured while
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46 * describe() a Collection.*/
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47 public static final String ERROR_DESCRIBE_COLLECTION =
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48 "error_describe_collection";
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49
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51 public Collection describe(String uuid, String locale)
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52 throws ServerException
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53 {
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54 logger.info("DescribeCollectionServiceImpl.describe");
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56 String url = getServletContext().getInitParameter("server-url");
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57
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58 Document describe = ClientProtocolUtils.newDescribeCollectionDocument(
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59 uuid);
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60
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61 HttpClient client = new HttpClientImpl(url, locale);
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62
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63 try {
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64 Document response = (Document) client.doCollectionAction(
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65 describe, uuid, new DocumentResponseHandler());
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66
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67 Collection c = CollectionHelper.parseCollection(response);
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68
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69 if (c == null) {
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70 throw new ServerException(ERROR_DESCRIBE_COLLECTION);
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71 }
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72
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73 logger.debug("Collection successfully parsed.");
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74
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75 return c;
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76 }
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77 catch (ConnectionException ce) {
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78 logger.error(ce, ce);
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79 }
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80
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81 throw new ServerException(ERROR_DESCRIBE_COLLECTION);
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82 }
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83 }
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84 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org