Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/PorosityParser.java @ 7927:07cc4cd9233e

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Add new DateUtil class.
author "Tom Gottfried <tom@intevation.de>"
date Thu, 12 Jun 2014 12:21:55 +0200
parents 952b57b43e2f
children 3bb1c62ad732
rev   line source
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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 import org.dive4elements.river.utils.DateUtil;
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16
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17 import java.io.File;
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18 import java.io.IOException;
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19
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20 import java.math.BigDecimal;
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21
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22 import java.text.NumberFormat;
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23
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24 import java.util.ArrayList;
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25 import java.util.Date;
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26 import java.util.List;
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27
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28 import java.util.regex.Matcher;
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29 import java.util.regex.Pattern;
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30
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31 import org.apache.log4j.Logger;
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32
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33 public class PorosityParser extends LineParser {
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34
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35 private static final Logger log =
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36 Logger.getLogger(PorosityParser.class);
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37
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38 public static final NumberFormat nf =
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39 NumberFormat.getInstance(DEFAULT_LOCALE);
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40
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41 public static final Pattern META_DEPTH =
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42 Pattern.compile("^Tiefe: (\\d++)-(\\d++).*");
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43
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44 public static final Pattern META_TIMEINTERVAL =
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45 Pattern.compile("^Zeitraum: (\\d{4})-(\\d{4}).*");
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46
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47 protected List<ImportPorosity> porosities;
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48
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49 protected ImportPorosity current;
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50
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51 protected String currentDescription;
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52
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53 public PorosityParser() {
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54 porosities = new ArrayList<ImportPorosity>();
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55 }
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56
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57
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58 @Override
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59 public void parse(File file) throws IOException {
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60 currentDescription = file.getName().replaceAll("\\.csv", "");
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61
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62 super.parse(file);
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63 }
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64
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65
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66 @Override
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67 protected void reset() {
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68 current = new ImportPorosity(currentDescription);
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69 }
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70
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71
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72 @Override
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73 protected void finish() {
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74 if (current != null) {
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75 porosities.add(current);
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76 }
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77 }
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78
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79
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80 @Override
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81 protected void handleLine(int lineNum, String line) {
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82 if (line.startsWith(START_META_CHAR)) {
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83 handleMetaLine(stripMetaLine(line));
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84 }
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85 else {
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86 handleDataLine(line);
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87 }
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88 }
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89
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90
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91 protected void handleMetaLine(String line) {
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92 if (handleMetaDepth(line)) {
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93 return;
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94 }
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95 if (handleMetaTimeInterval(line)) {
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96 return;
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97 }
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98 log.warn("Unknown meta line: '" + line + "'");
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99 }
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100
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101 protected boolean handleMetaTimeInterval(String line) {
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102 Matcher m = META_TIMEINTERVAL.matcher(line);
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103
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104 if (m.matches()) {
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105 String lo = m.group(1);
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106 String up = m.group(2);
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107
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108 log.debug("Found time interval: " + lo + " - " + up);
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109
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110 try {
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111 int lower = Integer.valueOf(lo);
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112 int upper = Integer.valueOf(up);
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113
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114 Date fromYear = DateUtil.getStartDateFromYear(lower);
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115 Date toYear = DateUtil.getEndDateFromYear(upper);
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116
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117 current.setTimeInterval(new ImportTimeInterval(fromYear, toYear));
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118 }
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119 catch (NumberFormatException e) {
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120 log.warn("PP: could not parse timeinterval", e);
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121 }
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122
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123 return true;
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124 }
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125
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126 return false;
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127 }
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128
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129 protected boolean handleMetaDepth(String line) {
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130 Matcher m = META_DEPTH.matcher(line);
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131
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132 if (m.matches()) {
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133 String lo = m.group(1);
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134 String up = m.group(2);
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135
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136 log.info("Found porosity depth: " + lo + " - " + up + " cm");
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137
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138 ImportDepth depth = null;
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139 try {
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140 depth = new ImportDepth(
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141 new BigDecimal(lo),
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142 new BigDecimal(up)
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143 );
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144 }
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145 catch (NumberFormatException nfe) {
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146 log.warn("Unparsable number for depth: " + line, nfe);
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147 }
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148
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149 if (depth != null) {
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150 current.setDepth(depth);
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151 return true;
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152 }
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153 return false;
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154 }
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155 else {
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156 log.debug("Meta line doesn't contain depth information: " + line);
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157 }
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158
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159 return false;
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160 }
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161
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162 protected void handleDataLine(String line) {
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163 String[] vals = line.split(SEPERATOR_CHAR);
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164 log.debug("handle line: " + line);
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165
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166 if (vals == null || vals.length < 3) {
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167 log.warn("skip invalid data line: '" + line + "'");
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168 return;
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169 }
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170
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171 BigDecimal km = null;
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172 BigDecimal shoreOffset = null;
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173 BigDecimal porosity = null;
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174 vals[0] = vals[0].replace(",", ".");
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175 vals[2] = vals[2].replace(",", ".");
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176 try {
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177 km = new BigDecimal(vals[0]);
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178 porosity = new BigDecimal(vals[2]);
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179 if (!vals[1].isEmpty()) {
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180 vals[1] = vals[1].replace(",", ".");
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181 shoreOffset = new BigDecimal(vals[1]);
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182 }
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183 }
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184 catch(NumberFormatException nfe) {
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185 log.warn("Unparsable number in line: " + line, nfe);
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186 }
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187
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188 if (km == null || porosity == null) {
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189 log.warn("PP: No km nor porosity given. Skip line");
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190 return;
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191 }
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192 log.debug("add new value.");
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193 current.addValue(new ImportPorosityValue(
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194 km,
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195 shoreOffset,
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196 porosity,
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197 currentDescription));
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198 }
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199
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200
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201 public List<ImportPorosity> getPorosities() {
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202 return porosities;
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203 }
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204 }
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205 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org