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annotate flys-client/src/main/java/de/intevation/flys/client/server/GetArtifactServiceImpl.java @ 1341:e26088566e8a
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flys-client/trunk@2991 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Raimund Renkert <raimund.renkert@intevation.de> |
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date | Mon, 17 Oct 2011 15:17:28 +0000 |
parents | 924da6695800 |
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Added a new service to query an artifact description.
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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 com.google.gwt.user.server.rpc.RemoteServiceServlet; |
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6 |
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7 import de.intevation.artifacts.common.ArtifactNamespaceContext; |
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8 import de.intevation.artifacts.common.utils.ClientProtocolUtils; |
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9 import de.intevation.artifacts.common.utils.XMLUtils; |
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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.Artifact; |
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18 import de.intevation.flys.client.client.services.GetArtifactService; |
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19 |
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20 |
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21 /** |
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22 * This service provides a method that returns an artifact based on its |
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23 * identifier. |
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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 GetArtifactServiceImpl |
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28 extends RemoteServiceServlet |
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29 implements GetArtifactService |
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30 { |
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31 public static final String ERROR_DESCRIBE_ARTIFACT = |
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32 "error_describe_artifact"; |
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33 |
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34 public static final String XPATH_RESULT = "/art:result/text()"; |
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35 |
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36 public static final String OPERATION_FAILURE = "FAILED"; |
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37 |
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38 |
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39 public Artifact getArtifact( |
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40 String url, |
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41 String locale, |
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42 String uuid, |
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43 String hash) |
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44 throws ServerException |
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45 { |
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46 System.out.println("GetArtifactServiceImpl.getArtifact"); |
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47 |
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48 Document describe = ClientProtocolUtils.newDescribeDocument( |
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49 uuid, hash, true); |
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50 |
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51 HttpClient client = new HttpClientImpl(url, locale); |
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52 |
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53 try { |
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54 Document description = (Document) client.describe( |
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55 new de.intevation.artifacts.httpclient.objects.Artifact( |
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56 uuid, hash), |
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57 describe, |
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58 new DocumentResponseHandler()); |
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59 |
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60 if (description == null) { |
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61 throw new ServerException(ERROR_DESCRIBE_ARTIFACT); |
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62 } |
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63 |
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64 String result = XMLUtils.xpathString( |
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65 description, |
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66 XPATH_RESULT, |
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67 ArtifactNamespaceContext.INSTANCE); |
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68 |
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69 if (result == null || !result.equals(OPERATION_FAILURE)) { |
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70 return (Artifact) new FLYSArtifactCreator().create(description); |
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71 } |
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72 } |
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73 catch (ConnectionException ce) { |
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74 System.err.println(ce.getLocalizedMessage()); |
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75 } |
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76 |
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77 throw new ServerException(ERROR_DESCRIBE_ARTIFACT); |
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78 } |
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79 } |
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80 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |