Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/aft/SyncContext.java @ 4923:5cb8e941da1e

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CollectionAttribute: New function to check if out exists.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 31 Jan 2013 09:28:37 +0100
parents f939e1e6cfa4
children 2b7f44c80857
rev   line source
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.aft;
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2
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3 import de.intevation.db.ConnectedStatements;
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4
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5 import java.sql.ResultSet;
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6 import java.sql.SQLException;
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7
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8 import java.util.Date;
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9 import java.util.HashMap;
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10 import java.util.Map;
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11 import java.util.TreeMap;
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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.NodeList;
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18
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19 public class SyncContext
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20 {
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21 private static Logger log = Logger.getLogger(SyncContext.class);
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22
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23 protected ConnectedStatements aftStatements;
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24 protected ConnectedStatements flysStatements;
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25 protected Document dips;
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26
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27 protected Map<Long, DIPSGauge> numberToGauge;
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28 protected Map<TimeInterval, TimeInterval> flysTimeIntervals;
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29
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30 public SyncContext() {
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31 }
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32
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33 public SyncContext(
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34 ConnectedStatements aftStatements,
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35 ConnectedStatements flysStatements,
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36 Document dips
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37 ) {
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38 this.aftStatements = aftStatements;
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39 this.flysStatements = flysStatements;
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40 this.dips = dips;
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41 }
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42
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43 public void init() throws SQLException {
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44 numberToGauge = indexByNumber(dips);
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45 flysTimeIntervals = loadTimeIntervals();
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46 }
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47
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48 public ConnectedStatements getAftStatements() {
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49 return aftStatements;
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50 }
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51
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52 public void setAftStatements(ConnectedStatements aftStatements) {
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53 this.aftStatements = aftStatements;
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54 }
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55
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56 public ConnectedStatements getFlysStatements() {
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57 return flysStatements;
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58 }
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59
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60 public void setFlysStatements(ConnectedStatements flysStatements) {
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61 this.flysStatements = flysStatements;
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62 }
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63
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64 public Document getDips() {
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65 return dips;
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66 }
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67
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68 public void setDips(Document dips) {
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69 this.dips = dips;
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70 }
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71
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72 void close() {
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73 aftStatements.close();
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74 flysStatements.close();
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75 }
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76
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77 public static Long numberToLong(String s) {
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78 try {
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79 return Long.valueOf(s.trim());
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80 }
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81 catch (NumberFormatException nfe) {
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82 }
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83 return null;
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84 }
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85
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86 public Map<Long, DIPSGauge> getDIPSGauges() {
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87 return numberToGauge;
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88 }
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89
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90 protected static Map<Long, DIPSGauge> indexByNumber(Document document) {
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91 Map<Long, DIPSGauge> map = new HashMap<Long, DIPSGauge>();
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92 NodeList nodes = document.getElementsByTagName("PEGELSTATION");
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93 for (int i = nodes.getLength()-1; i >= 0; --i) {
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94 Element element = (Element)nodes.item(i);
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95 String numberString = element.getAttribute("NUMMER");
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96 Long number = numberToLong(numberString);
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97 if (number != null) {
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98 DIPSGauge newG = new DIPSGauge(element);
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99 DIPSGauge oldG = map.put(number, newG);
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100 if (oldG != null) {
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101 log.warn("DIPS: '" + newG.getName() +
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102 "' collides with '" + oldG.getName() +
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103 "' on gauge number " + number + ".");
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104 }
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105 }
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106 else {
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06891562e633 Extracted and documented the error messages of the process.
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107 log.warn("DIPS: Gauge '" + element.getAttribute("NAME") +
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108 "' has invalid gauge number '" + numberString + "'.");
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109 }
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110 }
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111 return map;
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112 }
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113
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114 protected Map<TimeInterval, TimeInterval> loadTimeIntervals()
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115 throws SQLException {
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116
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117 boolean debug = log.isDebugEnabled();
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118
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119 Map<TimeInterval, TimeInterval> intervals =
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120 new TreeMap<TimeInterval, TimeInterval>();
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121
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122 ResultSet rs = flysStatements
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123 .getStatement("select.timeintervals")
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124 .executeQuery();
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125
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126 try {
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127 while (rs.next()) {
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128 int id = rs.getInt("id");
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129 Date start = rs.getDate("start_time");
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130 Date stop = rs.getDate("stop_time");
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131
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132 if (debug) {
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133 log.debug("id: " + id);
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134 log.debug("start: " + start);
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135 log.debug("stop: " + stop);
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136 }
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137
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138 TimeInterval ti = new TimeInterval(id, start, stop);
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139 intervals.put(ti, ti);
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140 }
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141 }
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142 finally {
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143 rs.close();
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144 }
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145
859b4781554a Prefetch existing time intervals from FLYS db.
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146 if (debug) {
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147 log.debug("loaded time intervals: " + intervals.size());
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148 }
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149
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150 return intervals;
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151 }
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152
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153 public TimeInterval fetchOrCreateFLYSTimeInterval(TimeInterval key)
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154 throws SQLException
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155 {
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156 TimeInterval old = flysTimeIntervals.get(key);
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157 if (old != null) {
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158 return old;
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159 }
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160
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161 ResultSet rs = flysStatements
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162 .getStatement("next.timeinterval.id")
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163 .executeQuery();
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164
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165 try {
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166 rs.next();
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167 key.setId(rs.getInt("time_interval_id"));
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168 }
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169 finally {
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170 rs.close();
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171 }
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172
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173 if (log.isDebugEnabled()) {
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174 log.debug("FLYS: Created time interval id: " + key.getId());
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175 log.debug("FLYS: " + key);
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176 }
e21acb4f5c62 Simplified code.
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177
e21acb4f5c62 Simplified code.
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178 flysStatements.getStatement("insert.timeinterval")
e21acb4f5c62 Simplified code.
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179 .clearParameters()
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180 .setInt("id", key.getId())
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181 .setObject("start_time", key.getStart())
e21acb4f5c62 Simplified code.
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182 .setObject("stop_time", key.getStop())
e21acb4f5c62 Simplified code.
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183 .execute();
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184
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185 flysTimeIntervals.put(key, key);
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186
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187 return key;
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188 }
4077
97de7a552b79 Load DIPS XML
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parents:
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189 }
97de7a552b79 Load DIPS XML
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parents:
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190 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org