Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/PorosityParser.java @ 7880:a575eaae7899

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PorosityParser: Strip file extension for description.
author Tom Gottfried <tom@intevation.de>
date Fri, 16 May 2014 13:14:52 +0200
parents 8d4a4c645e61
children 952b57b43e2f
rev   line source
7840
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Raimund Renkert <rrenkert@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.importer.parsers;
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10
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11 import org.dive4elements.river.importer.ImportDepth;
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12 import org.dive4elements.river.importer.ImportPorosity;
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13 import org.dive4elements.river.importer.ImportPorosityValue;
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14 import org.dive4elements.river.importer.ImportTimeInterval;
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15
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16 import java.io.File;
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17 import java.io.IOException;
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18
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19 import java.math.BigDecimal;
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20
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21 import java.text.NumberFormat;
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22
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23 import java.util.ArrayList;
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24 import java.util.Date;
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25 import java.util.List;
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26
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27 import java.util.regex.Matcher;
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28 import java.util.regex.Pattern;
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29
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30 import org.apache.log4j.Logger;
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31
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32 public class PorosityParser extends LineParser {
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33
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34 private static final Logger log =
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35 Logger.getLogger(PorosityParser.class);
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36
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37 public static final NumberFormat nf =
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38 NumberFormat.getInstance(DEFAULT_LOCALE);
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39
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40 public static final Pattern META_DEPTH =
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41 Pattern.compile("^Tiefe: (\\w++)-(\\w++)( (\\w++))?.*");
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42
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43 public static final Pattern META_TIMEINTERVAL =
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44 Pattern.compile("^Zeitraum: (\\d{4})-(\\d{4}).*");
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45
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46 protected List<ImportPorosity> porosities;
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47
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48 protected ImportPorosity current;
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49
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50 protected String currentDescription;
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51
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52 public PorosityParser() {
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53 porosities = new ArrayList<ImportPorosity>();
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54 }
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55
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56
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57 @Override
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58 public void parse(File file) throws IOException {
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59 currentDescription = file.getName().replaceAll("\\.csv", "");
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60
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61 super.parse(file);
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62 }
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63
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64
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65 @Override
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66 protected void reset() {
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67 current = new ImportPorosity(currentDescription);
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68 }
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69
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70
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71 @Override
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72 protected void finish() {
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73 if (current != null) {
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74 porosities.add(current);
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75 }
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76 }
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77
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78
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79 @Override
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80 protected void handleLine(int lineNum, String line) {
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81 if (line.startsWith(START_META_CHAR)) {
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82 handleMetaLine(stripMetaLine(line));
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83 }
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84 else {
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85 handleDataLine(line);
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86 }
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87 }
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88
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89
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90 protected void handleMetaLine(String line) {
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91 if (handleMetaDepth(line)) {
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92 return;
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93 }
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94 if (handleMetaTimeInterval(line)) {
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95 return;
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96 }
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97 log.warn("Unknown meta line: '" + line + "'");
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98 }
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99
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100 protected boolean handleMetaTimeInterval(String line) {
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101 Matcher m = META_TIMEINTERVAL.matcher(line);
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102
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103 if (m.matches()) {
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104 String lo = m.group(1);
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105 String up = m.group(2);
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106
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107 log.debug("Found time interval: " + lo + " - " + up);
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108
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109 try {
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110 int lower = Integer.valueOf(lo);
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111 int upper = Integer.valueOf(up);
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112
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113 Date fromYear = LineParser.getStartDateFromYear(lower);
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114 Date toYear = LineParser.getEndDateFromYear(upper);
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115
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116 current.setTimeInterval(new ImportTimeInterval(fromYear, toYear));
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117 }
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118 catch (NumberFormatException e) {
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119 log.warn("PP: could not parse timeinterval", e);
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120 }
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121
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122 return true;
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123 }
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124
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125 return false;
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126 }
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127
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128 protected boolean handleMetaDepth(String line) {
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129 Matcher m = META_DEPTH.matcher(line);
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130
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131 if (m.matches()) {
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132 String lo = m.group(1);
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133 String up = m.group(2);
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134
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135 log.info("Found porosity depth: " + lo + " - " + up + " cm");
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136
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137 ImportDepth depth = null;
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138 try {
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139 depth = new ImportDepth(
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140 new BigDecimal(lo),
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141 new BigDecimal(up)
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142 );
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143 }
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144 catch (NumberFormatException nfe) {
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145 log.warn("Unparsable number for depth: " + line, nfe);
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146 }
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147
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148 if (depth != null) {
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149 current.setDepth(depth);
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150 return true;
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151 }
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152 return false;
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153 }
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154 else {
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155 log.debug("Meta line doesn't contain depth information: " + line);
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156 }
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157
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158 return false;
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159 }
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160
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161 protected void handleDataLine(String line) {
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162 String[] vals = line.split(SEPERATOR_CHAR);
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163 log.debug("handle line: " + line);
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164
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165 if (vals == null || vals.length < 3) {
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166 log.warn("skip invalid data line: '" + line + "'");
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167 return;
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168 }
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169
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170 BigDecimal km = null;
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171 BigDecimal shoreOffset = null;
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172 BigDecimal porosity = null;
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173 vals[0] = vals[0].replace(",", ".");
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174 vals[2] = vals[2].replace(",", ".");
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175 try {
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176 km = new BigDecimal(vals[0]);
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177 porosity = new BigDecimal(vals[2]);
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178 if (!vals[1].isEmpty()) {
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179 vals[1] = vals[1].replace(",", ".");
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180 shoreOffset = new BigDecimal(vals[1]);
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181 }
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182 }
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183 catch(NumberFormatException nfe) {
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184 log.warn("Unparsable number in line: " + line, nfe);
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185 }
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186
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187 if (km == null || porosity == null) {
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188 log.warn("PP: No km nor porosity given. Skip line");
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189 return;
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190 }
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191 log.debug("add new value.");
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192 current.addValue(new ImportPorosityValue(
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193 km,
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194 shoreOffset,
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195 porosity,
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196 currentDescription));
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197 }
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198
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199
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200 public List<ImportPorosity> getPorosities() {
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201 return porosities;
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202 }
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203 }
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204 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org