Mercurial > dive4elements > river
comparison flys-client/src/main/java/de/intevation/flys/client/server/AdvanceServiceImpl.java @ 32:88c530c25968
Added a service for the ADVANCE operation and a service that bundles FEED and ADVANCE in a single service.
flys-client/trunk@1451 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 10 Mar 2011 10:53:41 +0000 |
| parents | |
| children | e02f50a3ad59 |
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| 31:e8745ca02f2b | 32:88c530c25968 |
|---|---|
| 1 package de.intevation.flys.client.server; | |
| 2 | |
| 3 import org.w3c.dom.Document; | |
| 4 | |
| 5 import com.google.gwt.user.server.rpc.RemoteServiceServlet; | |
| 6 | |
| 7 import de.intevation.artifacts.common.ArtifactNamespaceContext; | |
| 8 import de.intevation.artifacts.common.utils.ClientProtocolUtils; | |
| 9 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 10 | |
| 11 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; | |
| 12 import de.intevation.artifacts.httpclient.http.HttpClient; | |
| 13 import de.intevation.artifacts.httpclient.http.HttpClientImpl; | |
| 14 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler; | |
| 15 | |
| 16 import de.intevation.flys.client.shared.model.Artifact; | |
| 17 import de.intevation.flys.client.client.services.AdvanceService; | |
| 18 | |
| 19 | |
| 20 /** | |
| 21 * This interface provides artifact specific operation ADVANCE. | |
| 22 * | |
| 23 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 24 */ | |
| 25 public class AdvanceServiceImpl | |
| 26 extends RemoteServiceServlet | |
| 27 implements AdvanceService | |
| 28 { | |
| 29 public static final String XPATH_RESULT = "/art:result/text()"; | |
| 30 | |
| 31 public static final String OPERATION_FAILURE = "FAILED"; | |
| 32 | |
| 33 | |
| 34 public Artifact advance(String serverUrl, Artifact artifact, String target){ | |
| 35 Document advance = ClientProtocolUtils.newAdvanceDocument( | |
| 36 artifact.getUuid(), | |
| 37 artifact.getHash(), | |
| 38 target); | |
| 39 | |
| 40 HttpClient client = new HttpClientImpl(serverUrl); | |
| 41 | |
| 42 try { | |
| 43 Document description = (Document) client.advance( | |
| 44 new de.intevation.artifacts.httpclient.objects.Artifact( | |
| 45 artifact.getUuid(), | |
| 46 artifact.getHash()), | |
| 47 advance, | |
| 48 new DocumentResponseHandler()); | |
| 49 | |
| 50 if (description == null) { | |
| 51 return null; | |
| 52 } | |
| 53 | |
| 54 String result = XMLUtils.xpathString( | |
| 55 description, | |
| 56 XPATH_RESULT, | |
| 57 ArtifactNamespaceContext.INSTANCE); | |
| 58 | |
| 59 if (result == null || !result.equals(OPERATION_FAILURE)) { | |
| 60 return (Artifact) new FLYSArtifactCreator().create(description); | |
| 61 } | |
| 62 } | |
| 63 catch (ConnectionException ce) { | |
| 64 System.err.println(ce.getLocalizedMessage()); | |
| 65 } | |
| 66 | |
| 67 return null; | |
| 68 } | |
| 69 } | |
| 70 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |