Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/MeasurementStationsParser.java @ 5844:4dd33b86dc61

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Added header to river backend.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 26 Apr 2013 08:25:41 +0200
parents 5aa05a7a34b7
children 4c3ccf2b0304
rev   line source
5844
4dd33b86dc61 Added header to river backend.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
diff changeset
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
4dd33b86dc61 Added header to river backend.
Sascha L. Teichmann <teichmann@intevation.de>
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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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Sascha L. Teichmann <teichmann@intevation.de>
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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 java.math.BigDecimal;
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12 import java.text.ParseException;
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13 import java.util.ArrayList;
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14 import java.util.Date;
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15 import java.util.List;
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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 org.dive4elements.river.importer.ImportMeasurementStation;
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20 import org.dive4elements.river.importer.ImportRange;
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21 import org.dive4elements.river.importer.ImportTimeInterval;
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22
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23
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24 public class MeasurementStationsParser extends LineParser {
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25
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26 public static class MeasurementStationParserException extends Exception {
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27
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28 private static final long serialVersionUID = 1L;
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29
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30 public MeasurementStationParserException(String msg) {
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31 super(msg);
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32 }
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33 }
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34
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35 public static final int MIN_COLUMNS = 10;
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36
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37 private static final Logger log = Logger
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38 .getLogger(MeasurementStationsParser.class);
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39
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40 private List<ImportMeasurementStation> measurementStations;
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41 private ImportMeasurementStation current;
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42
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43 @Override
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44 protected void reset() {
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45 this.measurementStations = new ArrayList<ImportMeasurementStation>();
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46 }
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47
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48 @Override
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49 protected void finish() {
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50 }
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51
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52 @Override
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53 protected void handleLine(int lineNum, String line) {
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54 if (line == null || line.startsWith(START_META_CHAR)) {
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55 log.info("skip meta information at line " + lineNum);
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56 return;
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57 }
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58
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59 try {
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60 current = new ImportMeasurementStation();
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61 handleDataLine(line);
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62 measurementStations.add(current);
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63 }
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64 catch (MeasurementStationParserException e) {
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65 log.warn("Problem in line " + lineNum + ": " + e.getMessage());
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66 }
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67 }
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68
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69 public List<ImportMeasurementStation> getMeasurementStations() {
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70 return measurementStations;
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71 }
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72
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73 protected void handleDataLine(String line)
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74 throws MeasurementStationParserException {
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75 String[] cols = line.split(SEPERATOR_CHAR);
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76
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77 if (cols == null || cols.length < MIN_COLUMNS) {
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78 int num = cols != null ? cols.length : 0;
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79 throw new MeasurementStationParserException("Not enough columns: "
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80 + num);
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81 }
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82
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83 current.name = getName(cols);
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84 current.station = getStation(cols);
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85 current.range = getRange(cols);
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86 current.measurementType = getMeasurementType(cols);
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87 current.riverside = getRiverside(cols);
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88 current.gauge = getGauge(cols);
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89 current.observationTimerange = getObservationTimerange(cols);
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90 current.operator = getOperator(cols);
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91 current.description = getDescription(cols);
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92
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93 log.debug("Found new measurement station '" + current.name + "' at km "
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94 + current.station);
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95 }
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96
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97 protected String getName(String[] cols)
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98 throws MeasurementStationParserException {
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99 if (cols[0] == null || cols[0].length() == 0) {
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100 throw new MeasurementStationParserException("invalid name '"
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101 + cols[0] + "'");
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102 }
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103
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104 return cols[0];
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105 }
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106
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107 protected double getStation(String[] cols)
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108 throws MeasurementStationParserException {
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109 if (cols[1] == null || cols[1].length() == 0) {
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110 throw new MeasurementStationParserException("invalid station '"
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111 + cols[1] + "'");
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112 }
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113
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114 try {
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115 return getDouble(cols[1]);
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116 }
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117 catch (ParseException e) {
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118 throw new MeasurementStationParserException(
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119 "unable to parse station: " + e.getMessage());
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120 }
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121 }
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122
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123 protected ImportRange getRange(String[] cols) {
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124 if (cols[4] == null || cols[4].length() == 0) {
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125 log.warn("No upper value for range found in '" + cols[4] + "'");
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126 return null;
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127 }
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128
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129 if (cols[5] == null || cols[5].length() == 0) {
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130 log.warn("No upper value for range found in '" + cols[5] + "'");
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131 return null;
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132 }
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133
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134 try {
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135 double lower = getDouble(cols[4]);
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136 double upper = getDouble(cols[5]);
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137
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138 return new ImportRange(new BigDecimal(lower), new BigDecimal(upper));
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139 }
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140 catch (ParseException e) {
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141 log.warn("unable to parse range: " + e.getMessage());
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142 return null;
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143 }
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144 }
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145
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146 protected String getMeasurementType(String[] cols)
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147 throws MeasurementStationParserException {
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148 if (cols[2] == null || cols[2].length() == 0) {
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149 throw new MeasurementStationParserException(
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150 "invalid measurement type '" + cols[2] + "'");
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151 }
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152
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153 return cols[2];
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154 }
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155
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156 protected String getRiverside(String[] cols) {
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157 return cols[3];
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158 }
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159
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160 protected String getGauge(String[] cols) {
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161 if (cols[6] == null || cols[6].length() == 0) {
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162 log.warn("invalid gauge found: '" + cols[6] + "'");
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163 }
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164
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165 return cols[6];
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166 }
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167
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168 protected ImportTimeInterval getObservationTimerange(String[] cols) {
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169 if (cols[8] == null || cols[8].length() == 0) {
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170 log.warn("Found invalid observation time '" + cols[8] + "'");
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171 }
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172
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173 try {
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174 Date date = getDate(cols[8]);
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175
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176 if (date != null) {
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177 return new ImportTimeInterval(date);
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178 }
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179 log.warn("Observation time date invalid: '" + cols[8] + "'");
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180 }
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181 catch (ParseException pe) {
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182 log.warn("Observation time date not parseable: '" + cols[8] + "'");
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183 return null;
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184 }
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185 return null;
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186 }
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187
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188 protected String getOperator(String[] cols) {
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189 return cols[9];
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190 }
f63b39799d2d Adapted DB schema (added relation measurement_station); improved importer to read files from filesystem with measurement stations.
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191
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192 protected String getDescription(String[] cols) {
4193
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193 return cols.length > 10 ? cols[10] : null;
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194 }
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195 }
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