Mercurial > dive4elements > river

comparison flys-client/src/main/java/de/intevation/flys/client/server/RiverServiceImpl.java @ 217:907b61e4d702

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Improved the exception handling - added warnings for user authentication errors and errors that occur while fetching supported rivers. flys-client/trunk@1659 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 08 Apr 2011 10:05:14 +0000
parents 44c63e7fd0d0
children 924da6695800
comparison
equal deleted inserted replaced
216:4b0fb079ead9 217:907b61e4d702
16 16
17 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; 17 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
18 import de.intevation.artifacts.httpclient.http.HttpClient; 18 import de.intevation.artifacts.httpclient.http.HttpClient;
19 import de.intevation.artifacts.httpclient.http.HttpClientImpl; 19 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
20 20
21 import de.intevation.flys.client.shared.exceptions.ServerException;
21 import de.intevation.flys.client.shared.model.DefaultRiver; 22 import de.intevation.flys.client.shared.model.DefaultRiver;
22 import de.intevation.flys.client.shared.model.River; 23 import de.intevation.flys.client.shared.model.River;
23 import de.intevation.flys.client.client.services.RiverService; 24 import de.intevation.flys.client.client.services.RiverService;
24 25
25 26
34 implements RiverService 35 implements RiverService
35 { 36 {
36 /** The XPath string that points to the rivers in the resulting document.*/ 37 /** The XPath string that points to the rivers in the resulting document.*/
37 public static final String XPATH_RIVERS = "/art:rivers/art:river"; 38 public static final String XPATH_RIVERS = "/art:rivers/art:river";
38 39
40 /** The error message key that is thrown if an error occured while reading
41 * the supported rivers from server.*/
42 public static final String ERROR_NO_RIVERS_FOUND = "error_no_rivers_found";
39 43
40 public River[] list(String serverUrl) { 44
45 public River[] list(String serverUrl)
46 throws ServerException
47 {
41 Document doc = XMLUtils.newDocument(); 48 Document doc = XMLUtils.newDocument();
42 49
43 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( 50 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
44 doc, 51 doc,
45 ArtifactNamespaceContext.NAMESPACE_URI, 52 ArtifactNamespaceContext.NAMESPACE_URI,
56 res, 63 res,
57 XPATH_RIVERS, 64 XPATH_RIVERS,
58 XPathConstants.NODESET, 65 XPathConstants.NODESET,
59 ArtifactNamespaceContext.INSTANCE); 66 ArtifactNamespaceContext.INSTANCE);
60 67
68 if (rivers == null || rivers.getLength() == 0) {
69 throw new ServerException(ERROR_NO_RIVERS_FOUND);
70 }
71
61 int count = rivers.getLength(); 72 int count = rivers.getLength();
62 73
63 List<River> theRivers = new ArrayList<River>(count); 74 List<River> theRivers = new ArrayList<River>(count);
64 75
65 for (int i = 0; i < count; i++) { 76 for (int i = 0; i < count; i++) {
75 } 86 }
76 catch (ConnectionException ce) { 87 catch (ConnectionException ce) {
77 System.err.println(ce.getLocalizedMessage()); 88 System.err.println(ce.getLocalizedMessage());
78 } 89 }
79 90
80 return null; 91 throw new ServerException(ERROR_NO_RIVERS_FOUND);
81 } 92 }
82 } 93 }
83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : 94 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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