Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelParser.java @ 4193:f63b39799d2d

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Adapted DB schema (added relation measurement_station); improved importer to read files from filesystem with measurement stations.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 22 Oct 2012 09:02:26 +0200
parents a65b5b0ade6f
children 255898799ed9
rev   line source
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c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.importer.parsers;
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2
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a65b5b0ade6f Completed the MINFO waterlevel import.
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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.text.NumberFormat;
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6 import java.text.ParseException;
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7 import java.util.ArrayList;
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c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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8 import java.util.List;
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9 import java.util.regex.Matcher;
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10 import java.util.regex.Pattern;
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11
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a65b5b0ade6f Completed the MINFO waterlevel import.
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12 import org.apache.log4j.Logger;
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13
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14 import de.intevation.flys.importer.ImportUnit;
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c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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15 import de.intevation.flys.importer.ImportWaterlevel;
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a65b5b0ade6f Completed the MINFO waterlevel import.
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16 import de.intevation.flys.importer.ImportWaterlevelQRange;
a65b5b0ade6f Completed the MINFO waterlevel import.
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17 import de.intevation.flys.importer.ImportWaterlevelValue;
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18
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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19
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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20 public class WaterlevelParser extends LineParser {
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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21
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22 private static final Logger log = Logger.getLogger(WaterlevelParser.class);
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23
a65b5b0ade6f Completed the MINFO waterlevel import.
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24 private static final NumberFormat nf =
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25 NumberFormat.getInstance(DEFAULT_LOCALE);
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26
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27 private static final Pattern META_Q_RANGE =
a65b5b0ade6f Completed the MINFO waterlevel import.
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28 Pattern.compile("Abfluss\\s\\[(.*)\\];(.*)");
a65b5b0ade6f Completed the MINFO waterlevel import.
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29
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30 public static final Pattern META_UNIT =
a65b5b0ade6f Completed the MINFO waterlevel import.
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31 Pattern.compile("^Einheit: \\[(.*)\\].*");
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32
a65b5b0ade6f Completed the MINFO waterlevel import.
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33
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34 private List<ImportWaterlevel> waterlevels;
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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35
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36 private ImportWaterlevel current;
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37
a65b5b0ade6f Completed the MINFO waterlevel import.
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38 private ImportWaterlevelQRange currentQ;
a65b5b0ade6f Completed the MINFO waterlevel import.
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39
a65b5b0ade6f Completed the MINFO waterlevel import.
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40 private String currentDescription;
a65b5b0ade6f Completed the MINFO waterlevel import.
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41
a65b5b0ade6f Completed the MINFO waterlevel import.
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42
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c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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43 public WaterlevelParser() {
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a65b5b0ade6f Completed the MINFO waterlevel import.
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44 waterlevels = new ArrayList<ImportWaterlevel>();
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c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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45 }
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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46
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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47
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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48 public List<ImportWaterlevel> getWaterlevels() {
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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49 return waterlevels;
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50 }
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51
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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52
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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53 @Override
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54 public void parse(File file) throws IOException {
a65b5b0ade6f Completed the MINFO waterlevel import.
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55 currentDescription = file.getName();
a65b5b0ade6f Completed the MINFO waterlevel import.
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56
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57 super.parse(file);
a65b5b0ade6f Completed the MINFO waterlevel import.
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58 }
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59
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60
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61 @Override
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62 protected void reset() {
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a65b5b0ade6f Completed the MINFO waterlevel import.
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63 currentQ = null;
a65b5b0ade6f Completed the MINFO waterlevel import.
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64 current = new ImportWaterlevel(currentDescription);
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65 }
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66
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67
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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68 @Override
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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69 protected void finish() {
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70 if (current != null) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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71 if (currentQ != null) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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72 current.addValue(currentQ);
a65b5b0ade6f Completed the MINFO waterlevel import.
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73 }
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74
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75 waterlevels.add(current);
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76 }
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77 }
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78
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79 @Override
4193
f63b39799d2d Adapted DB schema (added relation measurement_station); improved importer to read files from filesystem with measurement stations.
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80 protected void handleLine(int lineNum, String line) {
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a65b5b0ade6f Completed the MINFO waterlevel import.
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81 if (line.startsWith(START_META_CHAR)) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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82 handleMetaLine(stripMetaLine(line));
a65b5b0ade6f Completed the MINFO waterlevel import.
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83 return;
a65b5b0ade6f Completed the MINFO waterlevel import.
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84 }
a65b5b0ade6f Completed the MINFO waterlevel import.
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85 else if (handleQRange(line)) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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86 return;
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87 }
a65b5b0ade6f Completed the MINFO waterlevel import.
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88 else {
a65b5b0ade6f Completed the MINFO waterlevel import.
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89 handleDataLine(line);
a65b5b0ade6f Completed the MINFO waterlevel import.
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90 return;
a65b5b0ade6f Completed the MINFO waterlevel import.
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91 }
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92 }
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93
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94
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95 private void handleMetaLine(String meta) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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96 Matcher m = META_UNIT.matcher(meta);
a65b5b0ade6f Completed the MINFO waterlevel import.
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97
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98 if (m.matches()) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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99 String unit = m.group(1);
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100 log.debug("Found unit: '" + unit + "'");
a65b5b0ade6f Completed the MINFO waterlevel import.
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101
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102 current.setUnit(new ImportUnit(unit));
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103 }
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104 }
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105
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106
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107 private boolean handleQRange(String line) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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108 Matcher m = META_Q_RANGE.matcher(line);
a65b5b0ade6f Completed the MINFO waterlevel import.
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109
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110 if (m.matches()) {
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111 String unitStr = m.group(1);
a65b5b0ade6f Completed the MINFO waterlevel import.
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112 String valueStr = m.group(2);
a65b5b0ade6f Completed the MINFO waterlevel import.
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113
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114 if (currentQ != null) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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115 if (current != null) {
a65b5b0ade6f Completed the MINFO waterlevel import.
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116 current.addValue(currentQ);
a65b5b0ade6f Completed the MINFO waterlevel import.
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117 }
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118 else {
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119 // this should never happen
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120 log.warn("Try to add Q range without waterlevel!");
a65b5b0ade6f Completed the MINFO waterlevel import.
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121 }
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122 }
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123
a65b5b0ade6f Completed the MINFO waterlevel import.
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124 try {
a65b5b0ade6f Completed the MINFO waterlevel import.
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125 log.debug("Found new Q range: Q=" + valueStr);
a65b5b0ade6f Completed the MINFO waterlevel import.
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126
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127 currentQ = new ImportWaterlevelQRange(
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128 nf.parse(valueStr).doubleValue());
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129
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130 return true;
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131 }
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132 catch (ParseException pe) {
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133 log.warn("Error while parsing Q range: '" + line + "'");
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134 }
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135 }
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136
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137 return false;
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138 }
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139
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140
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141 private void handleDataLine(String line) {
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142 String[] cols = line.split(SEPERATOR_CHAR);
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143
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144 if (cols == null || cols.length < 2) {
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145 log.warn("skip invalid waterlevel line: '" + line + "'");
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146 return;
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147 }
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148
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149 try {
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150 Double station = nf.parse(cols[0]).doubleValue();
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151 Double value = nf.parse(cols[1]).doubleValue();
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152
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153 currentQ.addValue(new ImportWaterlevelValue(station, value));
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154 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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155 catch (ParseException pe) {
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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156 log.warn("Error while parsing number values: '" + line + "'");
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157 }
2844
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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158 }
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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159 }
c4db0f75a94a Prepared the importer to import MINFO specific waterlevel values and added a stub for a parser.
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160 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org