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> |
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date | Thu, 10 Mar 2011 10:53:41 +0000 |
parents | |
children | e02f50a3ad59 |
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31:e8745ca02f2b | 32:88c530c25968 |
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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 : |