Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelDifferencesParser.java @ 5230:fb7d43ba8147

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WaterlevelDifferencesParser: Cosmetics and fix misleading debug output.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
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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fb7d43ba8147 WaterlevelDifferencesParser: Cosmetics and fix misleading debug output.
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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 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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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 }
a1402c16152f Added a parser and importer classes used to import waterlevel differences.
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215 }
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216 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org