Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/utils/FLYSUtils.java @ 1125:65d8b3340397

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Cleanups of CrossSection*. flys-artifacts/trunk@2635 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 01 Sep 2011 13:00:36 +0000
parents 7398280b11a0
children da3c3e286c88
rev   line source
1095
f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.utils;
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2
1105
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1099
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3 import java.util.HashMap;
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parents: 1099
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4 import java.util.Map;
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5
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parents: 1099
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6 import javax.xml.xpath.XPathConstants;
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parents: 1099
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7
adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
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parents: 1099
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8 import org.w3c.dom.Document;
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parents: 1099
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9
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10 import gnu.trove.TDoubleArrayList;
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11
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7398280b11a0 Write WSP file for WSPLGEN and add its filepath to the WSPLGEN job.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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12 import de.intevation.artifacts.CallContext;
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parents: 1105
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13
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adb52a2005e7 Moved code to extract the river srid defined in the global configuration into FLYSUtils.
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parents: 1099
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14 import de.intevation.artifacts.common.utils.Config;
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parents: 1099
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15 import de.intevation.artifacts.common.utils.XMLUtils;
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parents: 1099
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16
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f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
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17 import de.intevation.flys.artifacts.FLYSArtifact;
1099
af73f196eccc Refactored to use new FLYSUtils, moved getRiver-functionality inside.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1095
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18 import de.intevation.flys.artifacts.model.RiverFactory;
af73f196eccc Refactored to use new FLYSUtils, moved getRiver-functionality inside.
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19 import de.intevation.flys.model.River;
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20
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21 public class FLYSUtils {
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22
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23 public static enum KM_MODE { RANGE, LOCATIONS, NONE };
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24
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25 public static final String XPATH_RIVER_PROJECTION =
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26 "/artifact-database/floodmap/river[@name=$name]/srid/@value";
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27
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28
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29 private FLYSUtils() {
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30 }
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31
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32
1118
7398280b11a0 Write WSP file for WSPLGEN and add its filepath to the WSPLGEN job.
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33 public static FLYSArtifact getArtifact(String uuid, CallContext context) {
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34 // TODO IMPLEMENT ME
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35 // Fetch artifact based on its UUID from ArtifactDatabase
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36
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37 return null;
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parents: 1105
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38 }
7398280b11a0 Write WSP file for WSPLGEN and add its filepath to the WSPLGEN job.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1105
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39
7398280b11a0 Write WSP file for WSPLGEN and add its filepath to the WSPLGEN job.
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parents: 1105
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40
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41 public static KM_MODE getKmRangeMode(FLYSArtifact flys) {
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af73f196eccc Refactored to use new FLYSUtils, moved getRiver-functionality inside.
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parents: 1095
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42 String mode = flys.getDataAsString("ld_mode");
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43
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44 if (mode == null || mode.length() == 0) {
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45 return KM_MODE.NONE;
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46 }
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47 else if (mode.equals("distance")) {
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48 return KM_MODE.RANGE;
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49 }
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50 else if (mode.equals("locations")) {
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51 return KM_MODE.LOCATIONS;
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52 }
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53 else {
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54 return KM_MODE.NONE;
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55 }
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56 }
f465785ed1ae Refactored the code to fetch the km range/locations into a utility class.
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57
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58
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59 public static double[] getKmRange(FLYSArtifact flys) {
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60 switch (getKmRangeMode(flys)) {
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61 case RANGE: {
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62 return getKmFromTo(flys);
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63 }
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64
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65 case LOCATIONS: {
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66 double[] locs = getLocations(flys);
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67 return new double[] { locs[0], locs[locs.length-1] };
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68 }
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69
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70 case NONE: {
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71 double[] locs = getLocations(flys);
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72 if (locs != null) {
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73 return new double[] { locs[0], locs[locs.length-1] };
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74 }
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75 else {
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76 return getKmFromTo(flys);
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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 return new double[] { Double.NaN, Double.NaN };
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82 }
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83
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84
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85 public static double[] getKmFromTo(FLYSArtifact flys) {
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86 String strFrom = flys.getDataAsString("ld_from");
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87 String strTo = flys.getDataAsString("ld_to");
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88
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89 if (strFrom == null || strTo == null) {
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90 return null;
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91 }
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92
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93 try {
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94 return new double[] {
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95 Double.parseDouble(strFrom),
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96 Double.parseDouble(strTo) };
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97 }
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98 catch (NumberFormatException nfe) {
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99 return null;
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100 }
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101 }
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102
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103
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104 public static double[] getLocations(FLYSArtifact flys) {
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105 String locationStr = flys.getDataAsString("ld_locations");
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106
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107 if (locationStr == null || locationStr.length() == 0) {
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108 return null;
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109 }
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110
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111 String[] tmp = locationStr.split(" ");
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112 TDoubleArrayList locations = new TDoubleArrayList();
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113
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114 for (String l: tmp) {
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115 try {
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116 locations.add(Double.parseDouble(l));
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117 }
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118 catch (NumberFormatException nfe) {
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119 }
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120 }
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121
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122 locations.sort();
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123
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124 return locations.toNativeArray();
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125 }
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126
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127
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128 /**
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129 * Returns the selected River object based on the 'river' data that might
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130 * have been inserted by the user.
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131 *
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132 * @return the selected River or null if no river has been chosen yet.
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133 */
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134 public static River getRiver(FLYSArtifact flys) {
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135 String sRiver = flys.getDataAsString("river");
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136
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137 return (sRiver != null)
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138 ? RiverFactory.getRiver(sRiver)
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139 : null;
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140 }
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141
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142
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143 /**
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144 * Extracts the SRID defined in the global configuration for the river
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145 * specified in <i>artifact</i>.
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146 *
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147 * @param artifact The FLYSArtifact that stores the name of the river.
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148 *
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149 * @return the SRID as string (e.g. "31466").
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150 */
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151 public static String getRiverSrid(FLYSArtifact artifact) {
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152 String river = artifact.getDataAsString("river");
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153
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154 if (river == null || river.length() == 0) {
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155 return null;
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156 }
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157
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158 Map<String, String> variables = new HashMap<String, String>(1);
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159 variables.put("name", river);
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160
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161 Document cfg = Config.getConfig();
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162
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163 return (String) XMLUtils.xpath(
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164 cfg,
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165 XPATH_RIVER_PROJECTION,
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166 XPathConstants.STRING,
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167 null,
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168 variables);
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169 }
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170 }
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171 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org