Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/aft/SyncContext.java @ 4421:0b0f415203f0

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Add new Filter class to change caching Add new Filter class to avoid caching of GWT nocache files in browsers and http proxies. The new Filter class NoCacheFilter sets http headers to stop the proxies and browesers from storing the nocache files.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 06 Nov 2012 13:32:06 +0100
parents 06891562e633
children b195fede1c3b
rev   line source
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97de7a552b79 Load DIPS XML
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 java.util.Map;
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4 import java.util.Date;
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5 import java.util.HashMap;
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6 import java.util.TreeMap;
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7
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8 import java.sql.SQLException;
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9 import java.sql.ResultSet;
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10
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11 import org.w3c.dom.Document;
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12
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13 import de.intevation.db.ConnectedStatements;
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14
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15 import org.w3c.dom.NodeList;
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16 import org.w3c.dom.Element;
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17
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18 import org.apache.log4j.Logger;
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19
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20 public class SyncContext
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21 {
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22 private static Logger log = Logger.getLogger(SyncContext.class);
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23
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24 protected ConnectedStatements aftStatements;
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25 protected ConnectedStatements flysStatements;
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26 protected Document dips;
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27
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28 protected Map<Long, DIPSGauge> numberToGauge;
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29 protected Map<TimeInterval, TimeInterval> flysTimeIntervals;
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30
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31 public SyncContext() {
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32 }
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33
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34 public SyncContext(
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35 ConnectedStatements aftStatements,
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36 ConnectedStatements flysStatements,
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37 Document dips
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38 ) {
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39 this.aftStatements = aftStatements;
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40 this.flysStatements = flysStatements;
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41 this.dips = dips;
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42 }
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43
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44 public void init() throws SQLException {
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45 numberToGauge = indexByNumber(dips);
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46 flysTimeIntervals = loadTimeIntervals();
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97de7a552b79 Load DIPS XML
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47 }
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48
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49 public ConnectedStatements getAftStatements() {
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50 return aftStatements;
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51 }
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52
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53 public void setAftStatements(ConnectedStatements aftStatements) {
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54 this.aftStatements = aftStatements;
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55 }
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56
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57 public ConnectedStatements getFlysStatements() {
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58 return flysStatements;
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59 }
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60
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61 public void setFlysStatements(ConnectedStatements flysStatements) {
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62 this.flysStatements = flysStatements;
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63 }
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64
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65 public Document getDips() {
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66 return dips;
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67 }
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68
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69 public void setDips(Document dips) {
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70 this.dips = dips;
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71 }
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72
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73 void close() {
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74 aftStatements.close();
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75 flysStatements.close();
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76 }
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77
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78 public static Long numberToLong(String s) {
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79 try {
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80 return Long.valueOf(s.trim());
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81 }
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82 catch (NumberFormatException nfe) {
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83 }
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84 return null;
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85 }
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86
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87 public Map<Long, DIPSGauge> getDIPSGauges() {
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88 return numberToGauge;
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89 }
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90
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91 protected static Map<Long, DIPSGauge> indexByNumber(Document document) {
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92 Map<Long, DIPSGauge> map = new HashMap<Long, DIPSGauge>();
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93 NodeList nodes = document.getElementsByTagName("PEGELSTATION");
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94 for (int i = nodes.getLength()-1; i >= 0; --i) {
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95 Element element = (Element)nodes.item(i);
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96 String numberString = element.getAttribute("NUMMER");
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97 Long number = numberToLong(numberString);
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98 if (number != null) {
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99 DIPSGauge newG = new DIPSGauge(element);
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100 DIPSGauge oldG = map.put(number, newG);
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101 if (oldG != null) {
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102 log.warn("DIPS: '" + newG.getName() +
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103 "' collides with '" + oldG.getName() +
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104 "' on gauge number " + number + ".");
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105 }
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parents: 4077
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106 }
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107 else {
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108 log.warn("DIPS: Gauge '" + element.getAttribute("NAME") +
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109 "' has invalid gauge number '" + numberString + "'.");
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110 }
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111 }
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112 return map;
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113 }
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114
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115 protected Map<TimeInterval, TimeInterval> loadTimeIntervals()
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116 throws SQLException {
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117
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118 boolean debug = log.isDebugEnabled();
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119
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120 Map<TimeInterval, TimeInterval> intervals =
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121 new TreeMap<TimeInterval, TimeInterval>();
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122
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123 ResultSet rs = null;
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124
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125 try {
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126 rs = flysStatements
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127 .getStatement("select.timeintervals")
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128 .executeQuery();
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129
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130 while (rs.next()) {
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131 int id = rs.getInt("id");
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132 Date start = rs.getDate("start_time");
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133 Date stop = rs.getDate("stop_time");
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134
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135 if (debug) {
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136 log.debug("id: " + id);
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137 log.debug("start: " + start);
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138 log.debug("stop: " + stop);
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139 }
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140
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141 TimeInterval ti = new TimeInterval(id, start, stop);
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142 intervals.put(ti, ti);
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143 }
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144 }
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145 finally {
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146 if (rs != null) {
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147 rs.close();
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148 }
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149 }
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150
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151 if (debug) {
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152 log.debug("loaded time intervals: " + intervals.size());
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153 }
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154
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155 return intervals;
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156 }
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157
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158 public TimeInterval fetchOrCreateFLYSTimeInterval(TimeInterval key)
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159 throws SQLException
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160 {
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161 TimeInterval old = flysTimeIntervals.get(key);
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162 if (old != null) {
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163 return old;
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164 }
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165
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166 ResultSet rs = null;
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167 try {
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168 rs = flysStatements.getStatement("next.timeinterval.id")
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169 .executeQuery();
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170 rs.next();
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171 key.setId(rs.getInt("time_interval_id"));
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172 rs.close(); rs = null;
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173
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174 if (log.isDebugEnabled()) {
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175 log.debug("FLYS: Created time interval id: " + key.getId());
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176 log.debug("FLYS: " + key);
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177 }
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178
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179 flysStatements.getStatement("insert.timeinterval")
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180 .clearParameters()
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181 .setInt("id", key.getId())
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182 .setObject("start_time", key.getStart())
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183 .setObject("stop_time", key.getStop())
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184 .execute();
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185 }
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186 finally {
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187 if (rs != null) {
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188 rs.close();
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189 }
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190 }
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191
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192 flysTimeIntervals.put(key, key);
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193
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194 return key;
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195 }
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196
4077
97de7a552b79 Load DIPS XML
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parents:
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197 }
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198 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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parents:
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199
http://dive4elements.wald.intevation.org