Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/templating/FunctionResolver.java @ 1807:416d5526e1eb
Configured discharge curve outs to allow inclusion of mainvalue facets.
flys-artifacts/trunk@3136 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 02 Nov 2011 11:12:08 +0000 |
parents | 3ca999f507b7 |
children | de0c2bbb27f9 |
rev | line source |
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Datacage: Moved templating in a better suited package.
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1 package de.intevation.flys.artifacts.datacage.templating; |
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2 |
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3 import java.util.List; |
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4 import java.util.Collection; |
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5 import java.util.Map; |
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6 import java.util.ArrayList; |
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7 |
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8 import javax.xml.xpath.XPathFunctionResolver; |
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9 import javax.xml.xpath.XPathFunction; |
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10 import javax.xml.xpath.XPathFunctionException; |
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11 |
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12 import javax.xml.namespace.QName; |
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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 public class FunctionResolver |
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17 implements XPathFunctionResolver |
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18 { |
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19 private static Logger log = Logger.getLogger(FunctionResolver.class); |
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20 |
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21 public static final String FUNCTION_NAMESPACE_URI = "dc"; |
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22 |
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23 public static final class Entry { |
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24 |
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25 String name; |
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26 XPathFunction function; |
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27 int arity; |
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28 |
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29 public Entry() { |
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30 } |
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31 |
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32 public Entry(String name, XPathFunction function, int arity) { |
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33 this.name = name; |
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34 this.function = function; |
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35 this.arity = arity; |
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36 } |
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37 } // class Entry |
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38 |
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39 public static final FunctionResolver FUNCTIONS = new FunctionResolver(); |
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40 |
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41 static { |
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42 FUNCTIONS.addFunction("contains", 2, new XPathFunction() { |
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43 @Override |
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44 public Object evaluate(List args) throws XPathFunctionException { |
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45 Object haystack = args.get(0); |
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46 Object needle = args.get(1); |
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47 |
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48 if (needle instanceof String) { |
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49 needle = ((String)needle).toUpperCase(); |
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50 } |
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51 |
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52 try { |
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53 if (haystack instanceof Collection) { |
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54 return Boolean.valueOf( |
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55 ((Collection)haystack).contains(needle)); |
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56 } |
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57 |
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58 if (haystack instanceof Map) { |
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59 return Boolean.valueOf( |
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60 ((Map)haystack).containsKey(needle)); |
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61 } |
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62 |
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63 if (haystack instanceof Object []) { |
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64 for (Object straw: (Object [])haystack) { |
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65 if (straw.equals(needle)) { |
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66 return Boolean.TRUE; |
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67 } |
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68 } |
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69 } |
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70 |
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71 return Boolean.FALSE; |
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72 } |
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73 catch (Exception e) { |
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74 log.error(e); |
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75 throw new XPathFunctionException(e); |
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76 } |
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77 } |
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78 }); |
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79 } |
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80 |
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81 protected List<Entry> functions; |
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82 |
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83 public FunctionResolver() { |
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84 functions = new ArrayList<Entry>(); |
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85 } |
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86 |
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87 public void addFunction(String name, int arity, XPathFunction function) { |
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88 functions.add(new Entry(name, function, arity)); |
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89 } |
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90 |
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91 @Override |
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92 public XPathFunction resolveFunction(QName functionName, int arity) { |
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93 |
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94 if (!functionName.getNamespaceURI().equals(FUNCTION_NAMESPACE_URI)) { |
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95 return null; |
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96 } |
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97 |
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98 String name = functionName.getLocalPart(); |
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99 for (Entry entry: functions) { |
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100 if (entry.arity == arity && entry.name.equals(name)) { |
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101 return entry.function; |
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102 } |
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103 } |
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104 |
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105 return null; |
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106 } |
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107 } |
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108 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |