Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/server/UserCollectionsServiceImpl.java @ 6043:c47337657f8c
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author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 16 May 2013 17:57:55 +0200 |
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 java.util.ArrayList; |
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12 import java.util.Date; |
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13 import java.util.List; |
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14 |
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15 import javax.xml.xpath.XPathConstants; |
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16 |
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17 import org.w3c.dom.Document; |
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18 import org.w3c.dom.Element; |
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19 import org.w3c.dom.NodeList; |
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20 |
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21 import org.apache.log4j.Logger; |
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22 |
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23 import com.google.gwt.user.server.rpc.RemoteServiceServlet; |
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24 |
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25 import org.dive4elements.artifacts.common.ArtifactNamespaceContext; |
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26 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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27 |
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28 import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException; |
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29 import org.dive4elements.artifacts.httpclient.http.HttpClient; |
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30 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl; |
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31 |
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32 import org.dive4elements.river.client.shared.model.Collection; |
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33 import org.dive4elements.river.client.shared.model.DefaultCollection; |
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34 import org.dive4elements.river.client.client.services.UserCollectionsService; |
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35 |
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36 |
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37 /** |
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38 * This service returns a list of collections owned by a specified user. |
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39 * <b>NOTE:</b> The Collections returned by this service provide no information |
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40 * about the CollectionItems or OutputModes of the Collection. You need to fetch |
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41 * these information explicitly using another service. |
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42 * |
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43 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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44 */ |
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45 public class UserCollectionsServiceImpl |
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46 extends RemoteServiceServlet |
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47 implements UserCollectionsService |
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48 { |
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49 private static final Logger logger = Logger.getLogger( |
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50 UserCollectionsServiceImpl.class); |
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51 |
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52 |
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53 public Collection[] getUserCollections(String locale, String userid) { |
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54 logger.info("UserCollectionsServiceImpl.getUserCollections"); |
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55 |
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56 String serverUrl = getServletContext().getInitParameter("server-url"); |
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57 HttpClient client = new HttpClientImpl(serverUrl, locale); |
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58 |
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59 try { |
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60 Document result = client.listUserCollections(userid); |
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61 |
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62 NodeList list = (NodeList) XMLUtils.xpath( |
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63 result, |
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64 "/art:artifact-collections/art:artifact-collection", |
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65 XPathConstants.NODESET, |
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66 ArtifactNamespaceContext.INSTANCE); |
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67 |
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68 if (list == null || list.getLength() == 0) { |
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69 logger.debug("No collection found for user: " + userid); |
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70 return null; |
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71 } |
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72 |
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73 int num = list.getLength(); |
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74 |
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75 List<Collection> all = new ArrayList<Collection>(num); |
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76 |
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77 for (int i = 0; i < num; i++) { |
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78 Collection c = createCollection((Element) list.item(i)); |
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79 |
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80 if (c != null) { |
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81 all.add(c); |
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82 } |
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83 } |
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84 |
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85 logger.debug("User has " + all.size() + " collections."); |
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86 |
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87 return all.toArray(new Collection[all.size()]); |
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88 } |
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89 catch (ConnectionException ce) { |
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90 logger.error(ce, ce); |
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91 } |
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92 |
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93 logger.debug("No user collections found."); |
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94 return null; |
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95 } |
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96 |
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97 |
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98 /** |
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99 * Extracts a SimpleCollection from <i>node</i>. |
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100 * |
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101 * @param node Contains information about a collection. |
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102 * |
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103 * @return a list of Simplecollections. |
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104 */ |
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105 protected Collection createCollection(Element node) { |
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106 String uri = ArtifactNamespaceContext.NAMESPACE_URI; |
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107 |
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108 String creationStr = node.getAttributeNS(uri, "creation"); |
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109 String name = node.getAttributeNS(uri, "name"); |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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110 String uuid = node.getAttributeNS(uri, "uuid"); |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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111 String ttlStr = node.getAttributeNS(uri, "ttl"); |
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112 |
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Added missing validation check.
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113 if (!uuid.isEmpty() && !ttlStr.isEmpty() && !creationStr.isEmpty()) { |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
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114 try { |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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115 long time = Long.parseLong(creationStr); |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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116 long ttl = Long.parseLong(ttlStr); |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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117 return new DefaultCollection(uuid, ttl, name, new Date(time)); |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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118 } |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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119 catch (NumberFormatException nfe) { |
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Replaced stdout and stderr logging with log4j loggers in server classes.
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120 logger.warn("Error while parsing collection attributes."); |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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121 return null; |
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The project list displays the favorite state of a collection now. A gold star means, that a collection is a owner's favorite project and will never die. A silver star means, that the project is a common project.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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122 } |
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123 } |
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124 |
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125 logger.warn("Found an invalid Collection."); |
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126 return null; |
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127 } |
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128 } |
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129 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |