Mercurial > dive4elements > river

annotate flys-client/src/main/java/org/dive4elements/river/client/server/features/XMLFileFeatures.java @ 5834:f507086aa94b

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Repaired internal references.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 12:31:32 +0200
parents flys-client/src/main/java/de/intevation/flys/client/server/features/XMLFileFeatures.java@02cf2b1dff84
children 821a02bbfb4e
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.List;
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9 import java.util.Map;
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10
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11 import javax.xml.xpath.XPathConstants;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import org.w3c.dom.Document;
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16 import org.w3c.dom.Element;
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17 import org.w3c.dom.Node;
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18 import org.w3c.dom.NodeList;
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19
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20 import de.intevation.artifacts.common.utils.XMLUtils;
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21
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22 public class XMLFileFeatures implements Features {
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23
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24 private static final Logger logger =
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25 Logger.getLogger(XMLFileFeatures.class);
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26
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27 private Map<String, List<String>> featuremap =
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28 new HashMap<String, List<String>>();
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29
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30 private final static String XPATH_FEATURES = "ftr:feature/child::text()";
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31 private final static String XPATH_ROLES = "/ftr:features/ftr:role";
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32
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33 public XMLFileFeatures(String filename) throws IOException {
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34 FileInputStream finput = new FileInputStream(filename);
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35 logger.debug("XMLFileFeatures: " + filename);
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36 try {
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37 Document doc = XMLUtils.parseDocument(finput);
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38
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39 NodeList roles = (NodeList) XMLUtils.xpath(
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40 doc,
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41 XPATH_ROLES,
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42 XPathConstants.NODESET,
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43 FeaturesNamespaceContext.INSTANCE);
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44
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45 for(int i = 0, m = roles.getLength(); i < m; i++) {
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46 Element rolenode = (Element)roles.item(i);
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47
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48 String name = rolenode.getAttribute("name");
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49
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50 logger.debug("Found role: " + name);
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51
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52 NodeList features = (NodeList) XMLUtils.xpath(
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53 rolenode,
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54 XPATH_FEATURES,
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55 XPathConstants.NODESET,
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56 FeaturesNamespaceContext.INSTANCE);
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57
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58 if (features == null) {
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59 continue;
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60 }
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61
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62 int N = features.getLength();
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63
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64 if (N > 0) {
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65 List<String> allowed = new ArrayList<String>(N);
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66 for (int j = 0; j < N; j++) {
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67 Node featurenode = features.item(j);
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68 String featurename = featurenode.getNodeValue();
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69
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70 logger.debug("Found feature: " + featurename);
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71
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72 allowed.add(featurename);
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73 }
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74 featuremap.put(name, allowed);
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75 }
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76 }
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77 logger.debug("Loaded all features");
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78 }
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79 finally {
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80 finput.close();
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81 }
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82 }
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83
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84 @Override
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85 public List<String> getFeatures(List<String> roles) {
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86 List<String> features = new ArrayList<String>();
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87
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88 for (String role: roles) {
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89 List<String> allowed = this.featuremap.get(role);
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90 if (allowed != null) {
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91 features.addAll(allowed);
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92 }
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93 }
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94 return features;
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95 }
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96 }
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