Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/ModuleServiceImpl.java @ 9709:b74f817435fe

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comment removed
author dnt_bjoernsen <d.tironi@bjoernsen.de>
date Wed, 27 Jan 2021 11:47:38 +0100
parents c26fb37899ca
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.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 public class ModuleServiceImpl
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33 extends RemoteServiceServlet
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34 implements ModuleService
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35 {
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36 private static final Logger log =
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37 Logger.getLogger(ModuleServiceImpl.class);
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38
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39 public static final String XPATH_MODULES = "/art:modules/art:module";
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40
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41 public static final String ERROR_NO_MODULES_FOUND =
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42 "error_no_module_found";
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43
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44 @Override
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45 public Module[] list(final String locale) throws ServerException {
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46 final User user = this.getUser();
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47
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48 log.info("ModuleService.list");
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49
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50 final String url = getServletContext().getInitParameter("server-url");
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51
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52 // create dummy xml
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53 final Document doc = XMLUtils.newDocument();
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54
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55 final XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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56 doc,
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57 ArtifactNamespaceContext.NAMESPACE_URI,
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58 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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59
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60 final Element dummy = ec.create("modules");
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61 doc.appendChild(dummy);
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62
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63 final HttpClient client = new HttpClientImpl(url, locale);
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64 try {
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65 final Document result = client.callService(url, "modules", doc);
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66
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67 final NodeList list = (NodeList) XMLUtils.xpath(
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68 result,
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69 XPATH_MODULES,
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70 XPathConstants.NODESET,
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71 ArtifactNamespaceContext.INSTANCE);
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72
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73 if (list == null) {
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74 log.warn("No modules found.");
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75
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76 throw new ServerException(ERROR_NO_MODULES_FOUND);
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77 }
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78
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79 final int num = list.getLength();
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80
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81 final List<Module> modules = new ArrayList<Module>(list.getLength());
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82 for(int i =0; i < num; i++) {
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83 final Element em = (Element)list.item(i);
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84 final String name = em.getAttributeNS(ArtifactNamespaceContext.NAMESPACE_URI, "name");
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85 final String localname = em.getAttributeNS(ArtifactNamespaceContext.NAMESPACE_URI, "localname");
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86 final String strselected = em.getAttributeNS(ArtifactNamespaceContext.NAMESPACE_URI, "selected");
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87 boolean selected = Boolean.parseBoolean(strselected);
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88 final String group = em.getAttributeNS(ArtifactNamespaceContext.NAMESPACE_URI, "groupId");
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89 final String groupLabel = em.getAttributeNS(ArtifactNamespaceContext.NAMESPACE_URI, "groupLabel");
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90
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91 final NodeList rivers = em.getChildNodes();
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92 final List<String> riverUuids = new ArrayList<String>(rivers.getLength());
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93 for (int j = 0; j < rivers.getLength(); j++) {
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94 final Element re = (Element)rivers.item(j);
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95 riverUuids.add(re.getAttribute("uuid"));
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96 }
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97 log.debug("Found module " + name + " " + localname);
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98 if (user == null || user.canUseFeature("module:" + name)) {
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99 modules.add(new DefaultModule(name, localname, selected, group, groupLabel, riverUuids));
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100 }
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101 }
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102 return modules.toArray(new Module[modules.size()]);
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103 }
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104 catch (ConnectionException ce) {
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105 log.error(ce, ce);
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106 }
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107
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108 throw new ServerException(ERROR_NO_MODULES_FOUND);
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109 }
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110 }
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111
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112 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 tw=80 :
http://dive4elements.wald.intevation.org