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annotate flys-client/src/main/java/de/intevation/flys/client/server/AdvanceServiceImpl.java @ 215:e02f50a3ad59

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Improved the exception handling of artifact / collection specific operations. Warning dialog are displayed after such an exception. flys-client/trunk@1657 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 08 Apr 2011 08:51:28 +0000
parents 88c530c25968
children 924da6695800
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.
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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.AdvanceService;
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19
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21 /**
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22 * This interface provides artifact specific operation ADVANCE.
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23 *
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24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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25 */
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26 public class AdvanceServiceImpl
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27 extends RemoteServiceServlet
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28 implements AdvanceService
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29 {
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30 public static final String XPATH_RESULT = "/art:result/text()";
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32 public static final String OPERATION_FAILURE = "FAILED";
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34 public static final String ERROR_ADVANCE_ARTIFACT = "error_advance_artifact";
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e02f50a3ad59 Improved the exception handling of artifact / collection specific operations. Warning dialog are displayed after such an exception.
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37 public Artifact advance(String serverUrl, Artifact artifact, String target)
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38 throws ServerException
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39 {
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40 Document advance = ClientProtocolUtils.newAdvanceDocument(
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41 artifact.getUuid(),
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42 artifact.getHash(),
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43 target);
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45 HttpClient client = new HttpClientImpl(serverUrl);
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47 try {
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48 Document description = (Document) client.advance(
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49 new de.intevation.artifacts.httpclient.objects.Artifact(
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50 artifact.getUuid(),
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51 artifact.getHash()),
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52 advance,
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53 new DocumentResponseHandler());
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54
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55 if (description == null) {
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56 throw new ServerException(ERROR_ADVANCE_ARTIFACT);
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57 }
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59 String result = XMLUtils.xpathString(
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60 description,
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61 XPATH_RESULT,
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62 ArtifactNamespaceContext.INSTANCE);
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64 if (result == null || !result.equals(OPERATION_FAILURE)) {
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65 return (Artifact) new FLYSArtifactCreator().create(description);
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66 }
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67 }
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68 catch (ConnectionException ce) {
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69 System.err.println(ce.getLocalizedMessage());
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70 }
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72 throw new ServerException(ERROR_ADVANCE_ARTIFACT);
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73 }
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74 }
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75 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org