Mercurial > dive4elements > river
comparison flys-client/src/main/java/org/dive4elements/river/client/server/GetArtifactServiceImpl.java @ 5834:f507086aa94b
Repaired internal references.
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 12:31:32 +0200 |
| parents | flys-client/src/main/java/de/intevation/flys/client/server/GetArtifactServiceImpl.java@bc06a671ef60 |
| children | 821a02bbfb4e |
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| 5833:a2bdc0f524e8 | 5834:f507086aa94b |
|---|---|
| 1 package de.intevation.flys.client.server; | |
| 2 | |
| 3 import org.w3c.dom.Document; | |
| 4 | |
| 5 import org.apache.log4j.Logger; | |
| 6 | |
| 7 import com.google.gwt.user.server.rpc.RemoteServiceServlet; | |
| 8 | |
| 9 import de.intevation.artifacts.common.ArtifactNamespaceContext; | |
| 10 import de.intevation.artifacts.common.utils.ClientProtocolUtils; | |
| 11 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 12 | |
| 13 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; | |
| 14 import de.intevation.artifacts.httpclient.http.HttpClient; | |
| 15 import de.intevation.artifacts.httpclient.http.HttpClientImpl; | |
| 16 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler; | |
| 17 | |
| 18 import de.intevation.flys.client.shared.exceptions.ServerException; | |
| 19 import de.intevation.flys.client.shared.model.Artifact; | |
| 20 import de.intevation.flys.client.client.services.GetArtifactService; | |
| 21 | |
| 22 | |
| 23 /** | |
| 24 * This service provides a method that returns an artifact based on its | |
| 25 * identifier. | |
| 26 * | |
| 27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 28 */ | |
| 29 public class GetArtifactServiceImpl | |
| 30 extends RemoteServiceServlet | |
| 31 implements GetArtifactService | |
| 32 { | |
| 33 private static final Logger logger = | |
| 34 Logger.getLogger(GetArtifactServiceImpl.class); | |
| 35 | |
| 36 | |
| 37 public static final String ERROR_DESCRIBE_ARTIFACT = | |
| 38 "error_describe_artifact"; | |
| 39 | |
| 40 public static final String XPATH_RESULT = "/art:result/text()"; | |
| 41 | |
| 42 public static final String OPERATION_FAILURE = "FAILED"; | |
| 43 | |
| 44 | |
| 45 public Artifact getArtifact( | |
| 46 String locale, | |
| 47 String uuid, | |
| 48 String hash) | |
| 49 throws ServerException | |
| 50 { | |
| 51 logger.info("GetArtifactServiceImpl.getArtifact"); | |
| 52 | |
| 53 String url = getServletContext().getInitParameter("server-url"); | |
| 54 | |
| 55 Document describe = ClientProtocolUtils.newDescribeDocument( | |
| 56 uuid, hash, true); | |
| 57 | |
| 58 HttpClient client = new HttpClientImpl(url, locale); | |
| 59 | |
| 60 try { | |
| 61 Document description = (Document) client.describe( | |
| 62 new de.intevation.artifacts.httpclient.objects.Artifact( | |
| 63 uuid, hash), | |
| 64 describe, | |
| 65 new DocumentResponseHandler()); | |
| 66 | |
| 67 if (description == null) { | |
| 68 throw new ServerException(ERROR_DESCRIBE_ARTIFACT); | |
| 69 } | |
| 70 | |
| 71 String result = XMLUtils.xpathString( | |
| 72 description, | |
| 73 XPATH_RESULT, | |
| 74 ArtifactNamespaceContext.INSTANCE); | |
| 75 | |
| 76 if (result == null || !result.equals(OPERATION_FAILURE)) { | |
| 77 return (Artifact) new FLYSArtifactCreator().create(description); | |
| 78 } | |
| 79 } | |
| 80 catch (ConnectionException ce) { | |
| 81 logger.error(ce, ce); | |
| 82 } | |
| 83 | |
| 84 throw new ServerException(ERROR_DESCRIBE_ARTIFACT); | |
| 85 } | |
| 86 } | |
| 87 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |