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annotate flys-client/src/main/java/de/intevation/flys/client/server/AdvanceServiceImpl.java @ 3825:e91c5112d67c

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Implement a scrolling gauge info tree flys-client/trunk@5515 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Wed, 19 Sep 2012 07:59:35 +0000
parents f2039d030b5e
children
rev   line source
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88c530c25968 Added a service for the ADVANCE operation and a service that bundles FEED and ADVANCE in a single service.
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 org.w3c.dom.Document;
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4
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5 import org.apache.log4j.Logger;
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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.ArtifactNamespaceContext;
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10 import de.intevation.artifacts.common.utils.ClientProtocolUtils;
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11 import de.intevation.artifacts.common.utils.XMLUtils;
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12
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13 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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14 import de.intevation.artifacts.httpclient.http.HttpClient;
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15 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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16 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler;
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18 import de.intevation.flys.client.shared.exceptions.ServerException;
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19 import de.intevation.flys.client.shared.model.Artifact;
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20 import de.intevation.flys.client.client.services.AdvanceService;
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23 /**
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24 * This interface provides artifact specific operation ADVANCE.
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25 *
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26 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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27 */
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28 public class AdvanceServiceImpl
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29 extends RemoteServiceServlet
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30 implements AdvanceService
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31 {
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32 private static final Logger logger = Logger.getLogger(AdvanceService.class);
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34 public static final String XPATH_RESULT = "/art:result/text()";
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36 public static final String OPERATION_FAILURE = "FAILED";
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38 public static final String ERROR_ADVANCE_ARTIFACT = "error_advance_artifact";
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41 public Artifact advance(
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42 String locale,
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43 Artifact artifact,
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44 String target)
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45 throws ServerException
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46 {
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47 logger.info("AdvanceServiceImpl.advance");
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48
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f2039d030b5e Cosmetics, docs.
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49 String url = getServletContext().getInitParameter("server-url");
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51 Document advance = ClientProtocolUtils.newAdvanceDocument(
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52 artifact.getUuid(),
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53 artifact.getHash(),
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54 target);
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55
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56 HttpClient client = new HttpClientImpl(url, locale);
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58 try {
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59 Document description = (Document) client.advance(
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60 new de.intevation.artifacts.httpclient.objects.Artifact(
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61 artifact.getUuid(),
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62 artifact.getHash()),
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63 advance,
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64 new DocumentResponseHandler());
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65
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66 if (description == null) {
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67 throw new ServerException(ERROR_ADVANCE_ARTIFACT);
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68 }
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70 String result = XMLUtils.xpathString(
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71 description,
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72 XPATH_RESULT,
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73 ArtifactNamespaceContext.INSTANCE);
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74
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75 if (result == null || !result.equals(OPERATION_FAILURE)) {
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76 return (Artifact) new FLYSArtifactCreator().create(description);
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77 }
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78 }
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79 catch (ConnectionException ce) {
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80 logger.error(ce, ce);
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81 }
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82
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83 throw new ServerException(ERROR_ADVANCE_ARTIFACT);
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84 }
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85 }
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86 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org