Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/features/XMLFileFeatures.java @ 5861:172338b1407f

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GWT client: Added copyright header.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:30:15 +0200
parents 5aa05a7a34b7
children ea9eef426962
rev   line source
5861
172338b1407f GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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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.features;
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10
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11 import java.io.FileInputStream;
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12 import java.io.IOException;
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13
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14 import java.util.ArrayList;
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15 import java.util.HashMap;
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16 import java.util.List;
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17 import java.util.Map;
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18
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19 import javax.xml.xpath.XPathConstants;
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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 org.w3c.dom.Document;
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24 import org.w3c.dom.Element;
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25 import org.w3c.dom.Node;
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26 import org.w3c.dom.NodeList;
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27
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28 import org.dive4elements.artifacts.common.utils.XMLUtils;
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29
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30 public class XMLFileFeatures implements Features {
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31
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32 private static final Logger logger =
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33 Logger.getLogger(XMLFileFeatures.class);
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34
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35 private Map<String, List<String>> featuremap =
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36 new HashMap<String, List<String>>();
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37
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38 private final static String XPATH_FEATURES = "ftr:feature/child::text()";
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39 private final static String XPATH_ROLES = "/ftr:features/ftr:role";
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40
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41 public XMLFileFeatures(String filename) throws IOException {
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42 FileInputStream finput = new FileInputStream(filename);
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43 logger.debug("XMLFileFeatures: " + filename);
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44 try {
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45 Document doc = XMLUtils.parseDocument(finput);
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46
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47 NodeList roles = (NodeList) XMLUtils.xpath(
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48 doc,
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49 XPATH_ROLES,
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50 XPathConstants.NODESET,
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51 FeaturesNamespaceContext.INSTANCE);
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52
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53 for(int i = 0, m = roles.getLength(); i < m; i++) {
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54 Element rolenode = (Element)roles.item(i);
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55
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56 String name = rolenode.getAttribute("name");
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57
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58 logger.debug("Found role: " + name);
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59
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60 NodeList features = (NodeList) XMLUtils.xpath(
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61 rolenode,
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62 XPATH_FEATURES,
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63 XPathConstants.NODESET,
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64 FeaturesNamespaceContext.INSTANCE);
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65
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66 if (features == null) {
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67 continue;
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68 }
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69
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70 int N = features.getLength();
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71
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72 if (N > 0) {
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73 List<String> allowed = new ArrayList<String>(N);
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74 for (int j = 0; j < N; j++) {
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75 Node featurenode = features.item(j);
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76 String featurename = featurenode.getNodeValue();
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77
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78 logger.debug("Found feature: " + featurename);
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79
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80 allowed.add(featurename);
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81 }
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82 featuremap.put(name, allowed);
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83 }
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84 }
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85 logger.debug("Loaded all features");
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86 }
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87 finally {
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88 finput.close();
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89 }
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90 }
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91
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92 @Override
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93 public List<String> getFeatures(List<String> roles) {
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94 List<String> features = new ArrayList<String>();
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95
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96 for (String role: roles) {
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97 List<String> allowed = this.featuremap.get(role);
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98 if (allowed != null) {
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99 features.addAll(allowed);
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100 }
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101 }
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102 return features;
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103 }
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104 }
http://dive4elements.wald.intevation.org