Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelDifferencesParser.java @ 5230:fb7d43ba8147
WaterlevelDifferencesParser: Cosmetics and fix misleading debug output.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 11 Mar 2013 15:08:43 +0100 |
parents | 016616df35dc |
children | 37ff7c030ec9 |
rev | line source |
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1 package de.intevation.flys.importer.parsers; |
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2 |
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3 import java.io.File; |
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4 import java.io.IOException; |
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5 import java.math.BigDecimal; |
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6 import java.text.NumberFormat; |
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7 import java.text.ParseException; |
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8 import java.util.ArrayList; |
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9 import java.util.List; |
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10 import java.util.regex.Matcher; |
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11 import java.util.regex.Pattern; |
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12 |
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13 import org.apache.log4j.Logger; |
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14 |
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15 import de.intevation.flys.importer.ImportUnit; |
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16 import de.intevation.flys.importer.ImportWaterlevelDifference; |
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17 import de.intevation.flys.importer.ImportWaterlevelDifferenceColumn; |
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18 import de.intevation.flys.importer.ImportWaterlevelDifferenceValue; |
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19 |
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20 import de.intevation.flys.importer.ImportWst; |
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21 import de.intevation.flys.importer.ImportWstColumn; |
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22 |
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23 |
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24 /** |
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25 * Parse WaterlevelDifferences CSV file. |
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26 */ |
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27 public class WaterlevelDifferencesParser extends LineParser { |
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28 |
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29 private static final Logger log = |
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30 Logger.getLogger(WaterlevelDifferencesParser.class); |
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31 |
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32 private static final NumberFormat nf = |
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33 NumberFormat.getInstance(DEFAULT_LOCALE); |
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34 |
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35 public static final Pattern META_UNIT = |
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36 Pattern.compile("^Einheit: \\[(.*)\\].*"); |
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37 |
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38 private List<ImportWaterlevelDifference> differences; |
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39 |
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40 private ImportWaterlevelDifferenceColumn[] columns; |
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41 |
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42 private ImportWaterlevelDifference current; |
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43 |
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44 |
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45 public WaterlevelDifferencesParser() { |
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46 differences = new ArrayList<ImportWaterlevelDifference>(); |
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47 } |
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48 |
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49 |
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50 public List<ImportWaterlevelDifference> getDifferences() { |
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51 return differences; |
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52 } |
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53 |
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54 public List<ImportWst> exportWsts() { |
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55 List<ImportWst> wsts = new ArrayList<ImportWst>(); |
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56 for(ImportWaterlevelDifference waterlevel: getDifferences()) { |
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57 String description = waterlevel.getDescription(); |
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58 ImportWst wst = new ImportWst(); |
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59 wsts.add(wst); |
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60 wst.setDescription(description); |
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61 // Fixation kind. |
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62 wst.setKind(7); |
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63 wst.setUnit(waterlevel.getUnit()); |
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64 wst.setNumberColumns(waterlevel.getColumns().size()); |
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65 |
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66 int i = 0; |
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67 for (ImportWaterlevelDifferenceColumn wdc: waterlevel.getColumns()) { |
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68 ImportWstColumn column = wst.getColumn(i); |
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69 column.setDescription(wdc.getDescription()); |
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70 column.setName(wdc.getDescription()); |
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71 column.setPosition(i); |
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72 for (ImportWaterlevelDifferenceValue val: wdc.getValues()) { |
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73 column.addColumnValue(BigDecimal.valueOf(val.getStation()), |
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74 BigDecimal.valueOf(val.getValue())); |
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75 |
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76 } |
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77 i++; |
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78 } |
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79 } |
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80 return wsts; |
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81 } |
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82 |
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83 |
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84 @Override |
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85 public void parse(File file) throws IOException { |
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86 current = new ImportWaterlevelDifference(file.getName()); |
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87 |
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88 super.parse(file); |
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89 } |
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90 |
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91 |
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92 @Override |
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93 protected void reset() { |
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94 } |
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95 |
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96 |
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97 @Override |
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98 protected void finish() { |
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99 if (columns != null && current != null) { |
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100 for (ImportWaterlevelDifferenceColumn col: columns) { |
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101 current.addValue(col); |
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102 } |
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103 |
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104 differences.add(current); |
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105 } |
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106 |
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107 current = null; |
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108 columns = null; |
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109 } |
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110 |
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111 @Override |
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112 protected void handleLine(int lineNum, String line) { |
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113 if (line.startsWith(START_META_CHAR)) { |
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114 handleMetaLine(stripMetaLine(line)); |
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115 } |
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116 else { |
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117 handleDataLine(line); |
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118 } |
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119 } |
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120 |
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121 |
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122 private void handleMetaLine(String meta) { |
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123 if (handleMetaUnit(meta)) { |
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124 return; |
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125 } |
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126 else { |
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127 handleMetaColumnNames(meta); |
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128 } |
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129 } |
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130 |
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131 |
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132 private boolean handleMetaUnit(String meta) { |
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133 Matcher m = META_UNIT.matcher(meta); |
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134 |
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135 if (m.matches()) { |
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136 String unit = m.group(1); |
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137 log.debug("Found unit: '" + unit + "'"); |
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138 |
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139 current.setUnit(new ImportUnit(unit)); |
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140 |
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141 return true; |
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142 } |
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143 |
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144 return false; |
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145 } |
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146 |
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147 |
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148 private boolean handleMetaColumnNames(String meta) { |
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149 Pattern META_COLUMN_NAMES = Pattern.compile("Fluss-km;(.*)"); |
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150 Matcher m = META_COLUMN_NAMES.matcher(meta); |
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151 |
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152 if (m.matches()) { |
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153 String colStr = m.group(1); |
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154 String[] cols = colStr.split(SEPERATOR_CHAR); |
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155 |
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156 log.debug("Found " + cols.length + " columns."); |
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157 |
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158 initColumns(cols); |
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159 |
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160 return true; |
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161 } |
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162 |
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163 return false; |
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164 } |
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165 |
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166 |
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167 private void initColumns(String[] cols) { |
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168 columns = new ImportWaterlevelDifferenceColumn[cols.length]; |
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169 |
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170 for (int i = 0; i < cols.length; i++) { |
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171 String name = cols[i].replace("\"", ""); |
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172 |
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173 log.debug("Create new column '" + name + "'"); |
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174 columns[i] = new ImportWaterlevelDifferenceColumn(name); |
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175 } |
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176 } |
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177 |
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178 |
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179 private void handleDataLine(String line) { |
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180 String[] cols = line.split(SEPERATOR_CHAR); |
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181 |
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182 if (cols == null || cols.length < 2) { |
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183 log.warn("skip invalid waterlevel-diff line: '" + line + "'"); |
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184 return; |
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185 } |
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186 |
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187 try { |
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188 Double station = nf.parse(cols[0]).doubleValue(); |
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189 |
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190 for (int i = 0; i < columns.length; i++) { |
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191 int idx = i+1; |
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192 |
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193 if (idx >= cols.length) { |
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194 log.warn("Insufficient column numbers: " + line); |
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195 continue; |
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196 } |
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197 |
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198 String value = cols[idx]; |
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199 |
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200 try { |
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201 columns[i].addValue(new ImportWaterlevelDifferenceValue( |
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202 station, |
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203 nf.parse(value).doubleValue() |
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204 )); |
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205 } |
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206 catch (ParseException pe) { |
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207 log.warn("Error while parsing value: '" + value + "'"); |
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208 } |
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209 } |
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210 } |
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211 catch (ParseException pe) { |
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212 log.warn("Error while parsing station: '" + line + "'"); |
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213 } |
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214 } |
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215 } |
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216 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |