Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/features/XMLFileFeatures.java @ 3484:83845aa322ea
XMLFileFeatures: Cosmetics.
flys-client/trunk@5181 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Thu, 09 Aug 2012 08:22:04 +0000 |
parents | c64cad8dc772 |
children | 3dfe7bbab70f |
rev | line source |
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1 package de.intevation.flys.client.server.features; |
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2 |
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3 import java.io.FileInputStream; |
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4 import java.io.IOException; |
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5 |
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6 import java.util.ArrayList; |
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7 import java.util.HashMap; |
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8 import java.util.LinkedList; |
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9 import java.util.List; |
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10 import java.util.Map; |
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11 |
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12 import javax.xml.xpath.XPathConstants; |
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13 |
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14 import org.apache.log4j.Logger; |
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15 |
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16 import org.w3c.dom.Document; |
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17 import org.w3c.dom.Element; |
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18 import org.w3c.dom.Node; |
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19 import org.w3c.dom.NodeList; |
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20 |
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21 import de.intevation.artifacts.common.utils.XMLUtils; |
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22 |
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23 public class XMLFileFeatures implements Features { |
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24 |
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25 private static final Logger logger = |
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26 Logger.getLogger(XMLFileFeatures.class); |
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27 |
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28 private Map<String, List<String>> featuremap = |
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29 new HashMap<String, List<String>>(); |
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30 |
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31 private final static String XPATH_FEATURES = "ftr:feature/child::text()"; |
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32 private final static String XPATH_ROLES = "/ftr:features/ftr:role"; |
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33 |
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34 public XMLFileFeatures(String filename) throws IOException { |
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35 FileInputStream finput = new FileInputStream(filename); |
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36 |
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37 try { |
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38 Document doc = XMLUtils.parseDocument(finput); |
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39 |
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40 NodeList roles = (NodeList) XMLUtils.xpath( |
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41 doc, |
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42 XPATH_ROLES, |
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43 XPathConstants.NODESET, |
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44 FeaturesNamespaceContext.INSTANCE); |
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45 |
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46 for(int i = 0, m = roles.getLength(); i < m; i++) { |
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47 Element rolenode = (Element)roles.item(i); |
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48 |
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49 String name = rolenode.getAttributeNS( |
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50 FeaturesNamespaceContext.NAMESPACE_URI, "name"); |
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51 |
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52 logger.debug("Found role: " + name); |
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53 |
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54 NodeList features = (NodeList) XMLUtils.xpath( |
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55 rolenode, |
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56 XPATH_FEATURES, |
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57 XPathConstants.NODESET, |
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58 FeaturesNamespaceContext.INSTANCE); |
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59 |
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60 if (features == null) { |
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61 continue; |
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62 } |
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63 |
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64 int N = features.getLength(); |
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65 |
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66 if (N > 0) { |
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67 List<String> allowed = new ArrayList<String>(N); |
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68 for (int j = 0; j < N; j++) { |
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69 Node featurenode = features.item(j); |
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70 String featurename = featurenode.getNodeValue(); |
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71 |
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72 logger.debug("Found feature: " + featurename); |
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73 |
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74 allowed.add(featurename); |
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75 } |
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76 featuremap.put(name, allowed); |
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77 } |
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78 } |
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79 logger.debug("Loaded all features"); |
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80 } |
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81 finally { |
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82 finput.close(); |
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83 } |
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84 } |
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85 |
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86 @Override |
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87 public List<String> getFeatures(List<String> roles) { |
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88 List<String> features = new ArrayList<String>(); |
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89 |
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90 for (String role: roles) { |
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91 List<String> allowed = this.featuremap.get(role); |
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92 if (allowed != null) { |
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93 features.addAll(allowed); |
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94 } |
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95 } |
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96 return features; |
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97 } |
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98 } |