Mercurial > dive4elements > river
annotate backend/src/main/java/org/dive4elements/river/importer/parsers/MeasurementStationsParser.java @ 7002:0850a4983fcd double-precision
Issue1333: expand single-line i.e. 0-lenght Q-range to minimal length.
author | Tom Gottfried <tom.gottfried@intevation.de> |
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date | Thu, 12 Sep 2013 18:43:21 +0200 |
parents | 4c3ccf2b0304 |
children | 17db08570637 |
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 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 } |
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191 |
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192 protected String getDescription(String[] cols) { |
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193 return cols.length > 10 ? cols[10] : null; |
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194 } |
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195 } |