Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationSelect.java @ 686:3dc61e00385e facets-slt
Merged with trunk and introduced hashing of computed values.
flys-artifacts/branches/facets-slt@2126 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 15 Jun 2011 15:28:54 +0000 |
parents | 929137ee8154 |
children | 610d0e0f4f85 |
rev | line source |
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1 package de.intevation.flys.artifacts.states; |
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2 |
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3 import gnu.trove.TDoubleArrayList; |
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4 |
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5 import org.apache.log4j.Logger; |
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6 |
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7 import org.w3c.dom.Element; |
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8 |
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9 import de.intevation.artifacts.Artifact; |
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10 import de.intevation.artifacts.CallContext; |
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11 |
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12 import de.intevation.artifacts.common.utils.XMLUtils; |
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13 |
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14 import de.intevation.artifactdatabase.data.StateData; |
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15 |
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16 import de.intevation.flys.artifacts.FLYSArtifact; |
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17 |
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18 |
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19 /** |
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20 * This state is used to realize the input of multiple locations as string. The |
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21 * string should be a whitespace separated list of double values where each |
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22 * double value represents a location. |
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23 * |
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24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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25 */ |
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26 public class LocationSelect extends LocationDistanceSelect { |
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27 |
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28 /** The logger used in this class.*/ |
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29 private static Logger logger = Logger.getLogger(LocationSelect.class); |
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30 |
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31 |
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32 /** The name of the StateData object that stores the location string.*/ |
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33 public static final String FIELD_LOCATIONS = "ld_locations"; |
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34 |
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35 |
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36 public LocationSelect() { |
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37 } |
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38 |
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39 |
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40 @Override |
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41 protected String getUIProvider() { |
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42 return "location_panel"; |
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43 } |
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44 |
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45 |
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46 @Override |
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47 protected Element[] createItems( |
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48 XMLUtils.ElementCreator cr, |
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49 Artifact artifact, |
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50 String name, |
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51 CallContext context) |
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52 { |
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53 double[] minmax = getMinMaxDistance(artifact); |
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54 |
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55 double minVal = Double.MIN_VALUE; |
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56 double maxVal = Double.MAX_VALUE; |
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57 |
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58 if (minmax != null) { |
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59 minVal = minmax[0]; |
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60 maxVal = minmax[1]; |
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61 } |
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62 else { |
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63 logger.warn("Could not read min/max distance values!"); |
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64 } |
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65 |
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66 if (name.equals(FIELD_LOCATIONS)) { |
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67 Element min = createItem( |
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68 cr, |
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69 new String[] {"min", new Double(minVal).toString()}); |
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70 |
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71 Element max = createItem( |
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72 cr, |
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73 new String[] {"max", new Double(maxVal).toString()}); |
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74 |
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75 return new Element[] { min, max }; |
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76 } |
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77 |
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78 return null; |
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79 } |
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80 |
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81 |
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82 @Override |
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83 public boolean validate(Artifact artifact, CallContext context) |
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84 throws IllegalArgumentException |
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85 { |
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86 logger.debug("LocationSelect.validate"); |
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87 |
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88 FLYSArtifact flys = (FLYSArtifact) artifact; |
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89 StateData data = getData(flys, FIELD_LOCATIONS); |
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90 |
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91 String locationStr = data != null ? (String) data.getValue() : null; |
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92 |
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93 if (locationStr == null || locationStr.length() == 0) { |
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94 logger.error("No locations given."); |
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95 throw new IllegalArgumentException("error_empty_state"); |
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96 } |
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97 |
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98 double[] minmax = getMinMaxDistance(artifact); |
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99 double[] mm = extractLocations(locationStr); |
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100 |
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101 logger.debug("Inserted min location: " + mm[0]); |
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102 logger.debug("Inserted max location: " + mm[mm.length-1]); |
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103 |
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104 return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length-1], 0d); |
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105 } |
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106 |
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107 |
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108 /** |
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109 * This method takes a string that consist of whitespace separated double |
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110 * values and returns the double values as array. |
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111 * |
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112 * @param locationStr The locations inserted in this state. |
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113 * |
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114 * @return the locations as array. |
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115 */ |
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116 protected double[] extractLocations(String locationStr) { |
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117 String[] tmp = locationStr.split(" "); |
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118 TDoubleArrayList locations = new TDoubleArrayList(); |
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119 |
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120 for (String l: tmp) { |
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121 try { |
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122 locations.add(Double.parseDouble(l)); |
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123 } |
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124 catch (NumberFormatException nfe) { |
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125 logger.warn(nfe, nfe); |
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126 } |
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127 } |
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128 |
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129 locations.sort(); |
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130 |
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131 return locations.toNativeArray(); |
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132 } |
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133 } |
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134 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |