Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/StaFileParser.java @ 4198:1cdbd8a0c994

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Added two new tables ClickableQDTable and ClickableWTable and made Ws and Qs clickable in historical discharge calculation. The new tables define listener interfaces (clicked lower or upper icon) to listen to user clicks. In addition to this, there is an enum ClickMode with NONE, SINGLE and RANGE options, which allows to specifiy, which icons are displayed in the tables. NONE means no icon for user clicks, SINGLE has 1 icon, RANGE 2 icons for lower and upper.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 22 Oct 2012 13:31:25 +0200
parents 976ead36192d
children 6553c8e364db
rev   line source
1211
f08fe480092c Moved file parsers to separate package.
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parents:
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1 package de.intevation.flys.importer.parsers;
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2
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3 import java.io.File;
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4 import java.io.IOException;
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5 import java.io.LineNumberReader;
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6 import java.io.FileInputStream;
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7 import java.io.InputStreamReader;
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8
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9 import java.math.BigDecimal;
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10
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11 import java.util.regex.Pattern;
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12 import java.util.regex.Matcher;
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13
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14 import java.util.HashMap;
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15 import java.util.ArrayList;
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16
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17 import org.apache.log4j.Logger;
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18
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19 import de.intevation.flys.importer.ImportMainValueType;
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20 import de.intevation.flys.importer.ImportMainValue;
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21 import de.intevation.flys.importer.ImportNamedMainValue;
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22 import de.intevation.flys.importer.ImportGauge;
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23
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24 public class StaFileParser
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25 {
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26 private static Logger log = Logger.getLogger(StaFileParser.class);
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27
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28 public static final String ENCODING = "ISO-8859-1";
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29
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30 public static final String TYPES =
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31 System.getProperty("flys.backend.main.value.types", "QWTD");
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32
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33 public static final boolean PARSE_GAUGE_NUMBERS =
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34 Boolean.getBoolean("flys.backend.sta.parse.gauge.numbers");
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35
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36 public static final Pattern QWTD_ =
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37 Pattern.compile("\\s*([^\\s]+)\\s+([^\\s]+)\\s+([" +
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38 Pattern.quote(TYPES) + "]).*");
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39
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40 public StaFileParser() {
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41 }
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42
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43 public boolean parse(ImportGauge gauge) throws IOException {
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44
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45 File file = gauge.getStaFile();
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46
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47 log.info("parsing STA file: " + file);
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48 LineNumberReader in = null;
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49 try {
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50 in =
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51 new LineNumberReader(
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52 new InputStreamReader(
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53 new FileInputStream(file), ENCODING));
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54
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55 String line = in.readLine();
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56
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57 if (line == null) {
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58 log.warn("STA file is empty.");
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59 return false;
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60 }
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61
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62 if (line.length() < 37) {
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63 log.warn("First line in STA file is too short.");
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64 return false;
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65 }
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66
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67 String gaugeName = line.substring(16, 37).trim();
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68
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69 Long gaugeNumber = null;
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70
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71 if (PARSE_GAUGE_NUMBERS) {
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72 String gaugeNumberString = line.substring(0, 16).trim();
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73
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74 try {
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75 gaugeNumber = Long.parseLong(gaugeNumberString);
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76 }
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77 catch (NumberFormatException nfe) {
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78 log.warn("STA: '" + gaugeNumberString +
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79 "' is not a valid long number.");
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80 }
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81 }
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82
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83 gauge.setName(gaugeName);
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84 gauge.setOfficialNumber(gaugeNumber);
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85
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86 if (log.isDebugEnabled()) {
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87 log.debug(
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88 "name/number: '" + gaugeName + "' '" + gaugeNumber + "'");
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89 }
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90
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91 String [] values = line.substring(38).trim().split("\\s+", 2);
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92
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93 if (values.length < 2) {
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94 log.warn("STA: Not enough columns for aeo and datum.");
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95 }
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96 try {
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97 gauge.setAeo(new BigDecimal(values[0].replace(",", ".")));
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98 gauge.setDatum(new BigDecimal(values[1].replace(",", ".")));
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99 }
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100 catch (NumberFormatException nfe) {
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101 log.warn("STA: cannot parse aeo or datum.");
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102 return false;
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103 }
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104
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105 line = in.readLine();
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106
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107 if (line == null) {
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108 log.warn("STA file has not enough lines");
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109 return false;
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110 }
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111
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112 if (line.length() < 36) {
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113 log.warn("STA: second line is too short");
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114 return false;
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115 }
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116
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117 try {
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118 gauge.setStation(
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119 new BigDecimal(line.substring(29, 36).trim()));
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120 }
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121 catch (NumberFormatException nfe) {
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122 log.warn("STA: parsing of the datum of the gauge failed");
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123 return false;
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124 }
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125
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126 // overread the next six lines
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127 for (int i = 0; i < 6; ++i) {
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128 if ((line = in.readLine()) == null) {
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129 log.warn("STA file is too short");
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130 return false;
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131 }
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132 }
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133
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134 HashMap<String, ImportMainValueType> types =
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135 new HashMap<String, ImportMainValueType>();
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136
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137 ArrayList<ImportNamedMainValue> namedMainValues =
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138 new ArrayList<ImportNamedMainValue>();
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139
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140 ArrayList<ImportMainValue> mainValues =
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141 new ArrayList<ImportMainValue>();
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142
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143 while ((line = in.readLine()) != null) {
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144 Matcher m = QWTD_.matcher(line);
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145 if (m.matches()) {
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146 BigDecimal value;
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147 try {
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148 value = new BigDecimal(m.group(2).replace(",", "."));
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149 }
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150 catch (NumberFormatException nfe) {
3660
976ead36192d backend: Mention backend warnings in importer.
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151 log.warn("STA: value not parseable in line "
1211
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152 + in.getLineNumber());
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153 continue;
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154 }
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155 String typeString = m.group(3);
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156 log.debug("\t type: " + typeString);
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157 ImportMainValueType type = types.get(typeString);
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158 if (type == null) {
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159 type = new ImportMainValueType(typeString);
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160 types.put(typeString, type);
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161 }
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162 String name = m.group(1);
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163 ImportNamedMainValue namedMainValue =
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164 new ImportNamedMainValue(type, name);
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165 namedMainValues.add(namedMainValue);
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166
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167 ImportMainValue mainValue =
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168 new ImportMainValue(gauge, namedMainValue, value);
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169
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170 mainValues.add(mainValue);
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171 }
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172 else {
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173 // TODO: treat as a comment
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174 }
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175 }
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176 gauge.setMainValueTypes(
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177 new ArrayList<ImportMainValueType>(types.values()));
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178 gauge.setNamedMainValues(namedMainValues);
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179 gauge.setMainValues(mainValues);
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180 }
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181 finally {
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182 if (in != null) {
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183 in.close();
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184 }
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185 }
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186 log.info("finished parsing STA file: " + file);
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187 return true;
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188 }
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189 }
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190 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org