Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/DescribeCollectionServiceImpl.java @ 5296:55122db34cd0
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author | Bettina Gruenbauer <bettina@intevation.de> |
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date | Thu, 14 Mar 2013 12:53:36 +0100 |
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1 package de.intevation.flys.client.server; |
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2 |
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3 import org.w3c.dom.Document; |
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4 |
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5 import org.apache.log4j.Logger; |
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6 |
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7 import com.google.gwt.user.server.rpc.RemoteServiceServlet; |
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8 |
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9 import de.intevation.artifacts.common.utils.ClientProtocolUtils; |
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10 |
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11 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; |
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12 import de.intevation.artifacts.httpclient.http.HttpClient; |
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13 import de.intevation.artifacts.httpclient.http.HttpClientImpl; |
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14 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler; |
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15 |
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16 import de.intevation.flys.client.shared.exceptions.ServerException; |
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17 import de.intevation.flys.client.shared.model.Collection; |
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18 |
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19 import de.intevation.flys.client.client.services.DescribeCollectionService; |
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20 |
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21 |
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22 /** |
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23 * This service implements a method that queries the DESCRIBE document of a |
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24 * specific collection and returns a Collection object with the information of |
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25 * the document. |
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26 * |
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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28 */ |
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29 public class DescribeCollectionServiceImpl |
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30 extends RemoteServiceServlet |
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31 implements DescribeCollectionService |
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32 { |
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33 private static final Logger logger = |
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34 Logger.getLogger(DescribeCollectionServiceImpl.class); |
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35 |
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36 |
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37 /** The error message key that is thrown if an error occured while |
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38 * describe() a Collection.*/ |
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39 public static final String ERROR_DESCRIBE_COLLECTION = |
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40 "error_describe_collection"; |
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41 |
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42 |
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43 public Collection describe(String uuid, String locale) |
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44 throws ServerException |
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45 { |
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46 logger.info("DescribeCollectionServiceImpl.describe"); |
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48 String url = getServletContext().getInitParameter("server-url"); |
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49 |
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50 Document describe = ClientProtocolUtils.newDescribeCollectionDocument( |
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51 uuid); |
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52 |
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53 HttpClient client = new HttpClientImpl(url, locale); |
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54 |
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55 try { |
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56 Document response = (Document) client.doCollectionAction( |
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57 describe, uuid, new DocumentResponseHandler()); |
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58 |
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59 Collection c = CollectionHelper.parseCollection(response); |
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60 |
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61 if (c == null) { |
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62 throw new ServerException(ERROR_DESCRIBE_COLLECTION); |
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63 } |
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64 |
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65 logger.debug("Collection successfully parsed."); |
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66 |
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67 return c; |
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68 } |
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69 catch (ConnectionException ce) { |
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70 logger.error(ce, ce); |
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71 } |
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72 |
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73 throw new ServerException(ERROR_DESCRIBE_COLLECTION); |
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74 } |
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75 } |
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76 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |