Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/ModuleServiceImpl.java @ 9801:1d7a72a50183 3.2.x tip

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Assume Compose V2, consistently
author Tom Gottfried <tom@intevation.de>
date Thu, 23 Nov 2023 10:14:13 +0100
parents 0a5239a1e46e
children
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.ModuleService;
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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.DefaultModule;
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20 import org.dive4elements.river.client.shared.model.Module;
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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.logging.log4j.Logger;
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28 import org.apache.logging.log4j.LogManager;
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29 import org.w3c.dom.Document;
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30 import org.w3c.dom.Element;
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31 import org.w3c.dom.NodeList;
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32
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33 public class ModuleServiceImpl
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34 extends RemoteServiceServlet
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35 implements ModuleService
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36 {
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37 private static final Logger log =
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38 LogManager.getLogger(ModuleServiceImpl.class);
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39
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40 public static final String XPATH_MODULES = "/art:modules/art:module";
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41
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42 public static final String ERROR_NO_MODULES_FOUND =
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43 "error_no_module_found";
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44
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45 @Override
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46 public Module[] list(String locale) throws ServerException {
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47 User user = this.getUser();
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48
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49 log.info("ModuleService.list");
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50
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51 String url = getServletContext().getInitParameter("server-url");
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52
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53 // create dummy xml
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54 Document doc = XMLUtils.newDocument();
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55
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56 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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57 doc,
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58 ArtifactNamespaceContext.NAMESPACE_URI,
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59 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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60
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61 Element dummy = ec.create("modules");
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62 doc.appendChild(dummy);
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63
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64 HttpClient client = new HttpClientImpl(url, locale);
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65 try {
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66 Document result = client.callService(url, "modules", doc);
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67
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68 NodeList list = (NodeList) XMLUtils.xpath(
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69 result,
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70 XPATH_MODULES,
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71 XPathConstants.NODESET,
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72 ArtifactNamespaceContext.INSTANCE);
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73
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74 if (list == null) {
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75 log.warn("No modules found.");
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76
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77 throw new ServerException(ERROR_NO_MODULES_FOUND);
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78 }
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79
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80 int num = list.getLength();
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81
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82 List<Module> modules = new ArrayList<Module>(list.getLength());
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83 for(int i =0; i < num; i++) {
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84 Element em = (Element)list.item(i);
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85 String name = em.getAttributeNS(
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86 ArtifactNamespaceContext.NAMESPACE_URI, "name");
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87 String localname = em.getAttributeNS(
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88 ArtifactNamespaceContext.NAMESPACE_URI, "localname");
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89 String strselected = em.getAttributeNS(
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90 ArtifactNamespaceContext.NAMESPACE_URI, "selected");
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91 boolean selected = strselected == null ? false :
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92 strselected.equalsIgnoreCase("true");
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93 NodeList rivers = em.getChildNodes();
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94 List<String> riverUuids = new ArrayList<String>();
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95 for (int j = 0; j < rivers.getLength(); j++) {
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96 Element re = (Element)rivers.item(j);
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97 riverUuids.add(re.getAttribute("uuid"));
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98 }
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99 log.debug("Found module " + name + " " + localname);
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100 if (user == null || user.canUseFeature("module:" + name)) {
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101 modules.add(new DefaultModule(
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102 name, localname, selected, riverUuids));
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103 }
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104 }
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105 return modules.toArray(new Module[modules.size()]);
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106 }
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107 catch (ConnectionException ce) {
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108 log.error(ce, ce);
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109 }
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110
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111 throw new ServerException(ERROR_NO_MODULES_FOUND);
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112 }
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113 }
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114
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115 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 tw=80 :
http://dive4elements.wald.intevation.org