Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/server/RiverServiceImpl.java @ 7761:350a7cf09fbc
Load modules with supported rivers and rivers with model_uuid.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Thu, 27 Feb 2014 16:38:45 +0100 |
parents | ea9eef426962 |
children | 238fc722f87a |
rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.client.server; |
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10 |
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11 import org.dive4elements.artifacts.common.ArtifactNamespaceContext; |
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12 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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13 import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException; |
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14 import org.dive4elements.artifacts.httpclient.http.HttpClient; |
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15 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl; |
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16 import org.dive4elements.river.client.client.services.RiverService; |
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17 import org.dive4elements.river.client.server.auth.User; |
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18 import org.dive4elements.river.client.shared.exceptions.ServerException; |
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19 import org.dive4elements.river.client.shared.model.DefaultRiver; |
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20 import org.dive4elements.river.client.shared.model.River; |
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21 |
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22 import java.util.ArrayList; |
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23 import java.util.List; |
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24 |
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25 import javax.xml.xpath.XPathConstants; |
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26 |
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27 import org.apache.log4j.Logger; |
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28 import org.w3c.dom.Document; |
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29 import org.w3c.dom.Element; |
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30 import org.w3c.dom.NodeList; |
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31 |
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32 |
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33 /** |
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34 * This interface provides a method to list the supported rivers of the artifact |
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35 * server. |
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36 * |
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37 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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38 */ |
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39 public class RiverServiceImpl |
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40 extends RemoteServiceServlet |
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41 implements RiverService |
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42 { |
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43 /** Private logger. */ |
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44 private static final Logger logger = |
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45 Logger.getLogger(RiverServiceImpl.class); |
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46 |
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47 /** The XPath string that points to the rivers in the resulting document.*/ |
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48 public static final String XPATH_RIVERS = "/art:rivers/art:river"; |
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49 |
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50 /** The error message key that is thrown if an error occured while reading |
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51 * the supported rivers from server.*/ |
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52 public static final String ERROR_NO_RIVERS_FOUND = "error_no_rivers_found"; |
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53 |
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54 |
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55 /** Get river list. */ |
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56 @Override |
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57 public River[] list(String locale) |
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58 throws ServerException |
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59 { |
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60 String url = getServletContext().getInitParameter("server-url"); |
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61 |
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62 Document doc = XMLUtils.newDocument(); |
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63 |
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64 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( |
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65 doc, |
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66 ArtifactNamespaceContext.NAMESPACE_URI, |
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67 ArtifactNamespaceContext.NAMESPACE_PREFIX); |
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68 |
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69 doc.appendChild(ec.create("action")); |
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70 |
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71 HttpClient client = new HttpClientImpl(url, locale); |
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72 |
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73 try { |
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74 Document res = client.callService(url, "rivers", doc); |
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75 |
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76 NodeList rivers = (NodeList) XMLUtils.xpath( |
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77 res, |
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78 XPATH_RIVERS, |
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79 XPathConstants.NODESET, |
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80 ArtifactNamespaceContext.INSTANCE); |
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81 |
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82 if (rivers == null || rivers.getLength() == 0) { |
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83 throw new ServerException(ERROR_NO_RIVERS_FOUND); |
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84 } |
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85 |
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86 int count = rivers.getLength(); |
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87 |
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88 List<River> theRivers = new ArrayList<River>(count); |
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89 User user = this.getUser(); |
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90 |
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91 for (int i = 0; i < count; i++) { |
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92 Element tmp = (Element)rivers.item(i); |
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93 |
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94 String name = tmp.getAttributeNS( |
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95 ArtifactNamespaceContext.NAMESPACE_URI, "name"); |
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96 String mUuid = tmp.getAttributeNS( |
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97 ArtifactNamespaceContext.NAMESPACE_URI, "modeluuid"); |
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98 |
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99 if (name.length() > 0 |
f1814efec714
Replaced another attribute fetching XPath with a simple DOM getAttributeNS() call.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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100 && (user == null || user.canUseFeature("river:" + name))) { |
7761
350a7cf09fbc
Load modules with supported rivers and rivers with model_uuid.
Raimund Renkert <rrenkert@intevation.de>
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5993
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101 theRivers.add(new DefaultRiver(name, mUuid)); |
3492
d45fcf70b994
Don't display not allowed rivers to the user
Bjoern Ricks <bjoern.ricks@intevation.de>
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102 } |
29
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Added a service to list the supported rivers of the artifact server. The FLYS instance serves a method that retrieves this list.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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103 } |
44c63e7fd0d0
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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104 |
3496
f1814efec714
Replaced another attribute fetching XPath with a simple DOM getAttributeNS() call.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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105 return theRivers.toArray(new River[theRivers.size()]); |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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106 } |
44c63e7fd0d0
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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107 catch (ConnectionException ce) { |
1367
ab8eb2f544f2
Replaced stdout and stderr logging with log4j loggers in server classes.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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108 logger.error(ce, ce); |
29
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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109 } |
44c63e7fd0d0
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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110 |
217
907b61e4d702
Improved the exception handling - added warnings for user authentication errors and errors that occur while fetching supported rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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29
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111 throw new ServerException(ERROR_NO_RIVERS_FOUND); |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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112 } |
44c63e7fd0d0
Added a service to list the supported rivers of the artifact server. The FLYS instance serves a method that retrieves this list.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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113 } |
44c63e7fd0d0
Added a service to list the supported rivers of the artifact server. The FLYS instance serves a method that retrieves this list.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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114 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |