Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/AtFileParser.java @ 7447:82b8bfb47260

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Importer and doc: Warn instead of die if AT- or STA-file is missing for a gauge.
author Tom Gottfried <tom@intevation.de>
date Fri, 25 Oct 2013 16:57:15 +0200
parents 9c597ccda611
children 9d2e69f971f5
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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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
7447
82b8bfb47260 Importer and doc: Warn instead of die if AT- or STA-file is missing for a gauge.
Tom Gottfried <tom@intevation.de>
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11 import java.io.FileNotFoundException;
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12 import java.io.BufferedReader;
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13 import java.io.File;
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14 import java.io.FileInputStream;
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15 import java.io.InputStreamReader;
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16 import java.io.IOException;
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17 import java.math.BigDecimal;
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18
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19 import org.apache.log4j.Logger;
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20
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21 import org.dive4elements.river.importer.ImportDischargeTable;
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22 import org.dive4elements.river.importer.ImportDischargeTableValue;
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23
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24 import java.util.regex.Pattern;
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25 import java.util.regex.Matcher;
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26
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27 import java.util.Date;
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28 import java.util.Calendar;
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29
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30 import org.dive4elements.river.importer.ImportTimeInterval;
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31
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32 /** Parse *.at (Abflusstafeln?) files. */
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33 public class AtFileParser {
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34
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35 public static final String ENCODING = "ISO-8859-1";
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36
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37 private static Logger logger = Logger.getLogger(AtFileParser.class);
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38
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39 // regular expression from hell to find out time range
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40 public static final Pattern DATE_LINE = Pattern.compile(
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41 "^\\*\\s*Abflu[^t]+tafel?\\s*([^\\d]+)" +
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42 "(\\d{1,2})?\\.?(\\d{1,2})?\\.?(\\d{2,4})\\s*(?:(?:bis)|-)?\\s*" +
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43 "(?:(\\d{1,2})?\\.?(\\d{1,2})?\\.?(\\d{2,4}))?\\s*.*$");
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44
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45 public AtFileParser() {
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46 }
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47
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48
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49 public ImportDischargeTable parse(File file) throws IOException {
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50 return parse(file, "", 0);
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51 }
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52
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53 public ImportDischargeTable parse(
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54 File file,
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55 String prefix,
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56 int kind
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57 )
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58 throws IOException {
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59
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60 logger.info("parsing AT file: " + file);
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61
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62 BufferedReader br = null;
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63
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64 String line = null;
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65
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66 boolean beginning = true;
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67
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68 ImportDischargeTable dischargeTable =
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69 new ImportDischargeTable(kind, prefix + file.getName());
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70
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71 Date from = null;
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72 Date to = null;
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73
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74 try {
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75 br = new BufferedReader(
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76 new InputStreamReader(
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77 new FileInputStream(file), ENCODING));
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78
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79 while ((line = br.readLine()) != null) {
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80
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81 String tmp = line.trim();
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82
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83 if (tmp.length() == 0) {
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84 continue;
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85 }
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86
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87 Matcher m = DATE_LINE.matcher(tmp);
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88 if (m.matches()) {
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89 from = guessDate(m.group(2), m.group(3), m.group(4));
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90 to = guessDate(m.group(5), m.group(6), m.group(7));
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91 if (from == null) {
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92 Date t = from; from = to; to = t;
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93 }
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94 continue;
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95 }
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96
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97 if (tmp.startsWith("#! name=")) {
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98 // XXX Skip the name, because we don't know where to save
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99 // it at the moment
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100
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101 //String name = tmp.substring(8);
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102 continue;
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103 }
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104
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105 if (tmp.startsWith("#") || tmp.startsWith("*")) {
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106 continue;
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107 }
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108
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109 String[] splits = tmp.replace(',', '.').split("\\s+");
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110
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111 if ((splits.length < 2) || (splits.length > 11)) {
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112 logger.warn("Found an invalid row in the AT file.");
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113 continue;
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114 }
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115
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116 String strW = splits[0].trim();
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117 double W = Double.parseDouble(strW);
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118
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119 /* shift is used to differenciate between lines with
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120 * exactly 10 Qs and lines with less than 10 Qs. The shift
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121 * is only modified when it is the first line.
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122 */
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123 int shift = -1;
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124
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125 if (splits.length != 11 && beginning) {
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126 shift = 10 - splits.length;
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127 }
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128
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129
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130 for (int i = 1; i < splits.length; i++) {
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131 double iW = W + shift + i;
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132 double iQ = Double.parseDouble(splits[i].trim());
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133
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134 dischargeTable.addDischargeTableValue(
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135 new ImportDischargeTableValue(
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9c597ccda611 AT-Parser: Do not change unit of W and Q in discharge tables
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136 new BigDecimal(iQ),
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137 new BigDecimal(iW)));
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138 }
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139
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140 beginning = false;
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141 }
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142 }
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143 catch (NumberFormatException pe) {
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144 logger.warn("AT: invalid number " + pe.getMessage());
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145 }
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82b8bfb47260 Importer and doc: Warn instead of die if AT- or STA-file is missing for a gauge.
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146 catch (FileNotFoundException fnfe) {
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147 logger.error(fnfe.getMessage());
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148 }
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149 finally {
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150 if (br != null) {
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151 br.close();
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152 }
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parents:
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153 }
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parents:
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154
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parents:
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155 if (from != null) {
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diff changeset
156 if (to != null && from.compareTo(to) > 0) {
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157 Date t = from; from = to; to = t;
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158 }
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159 logger.info("from: " + from + " to: " + to);
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160 ImportTimeInterval interval = new ImportTimeInterval(from, to);
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161 dischargeTable.setTimeInterval(interval);
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162 }
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163
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164 logger.info("Finished parsing AT file: " + file);
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165
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166 return dischargeTable;
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167 }
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168
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169 public static Date guessDate(String day, String month, String year) {
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170 // TODO evaluate whether DateGuesser class can do that.
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171 if (day == null && month == null && year == null) {
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172 return null;
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173 }
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174
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175 logger.debug("day: " + day + " month: " + month + " year: " + year);
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176
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177 int dayI = 15;
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178 if (day != null) {
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179 try {
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180 dayI = Integer.parseInt(day.trim());
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181 }
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182 catch (NumberFormatException nfe) {
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183 }
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parents:
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184 }
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185
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186 int monthI = 6;
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187 if (month != null) {
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parents:
diff changeset
188 try {
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diff changeset
189 monthI = Integer.parseInt(month.trim());
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190 }
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191 catch (NumberFormatException nfe) {
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192 }
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parents:
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193 }
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194
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195 int yearI = 1900;
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196 if (year != null) {
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diff changeset
197 try {
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diff changeset
198 yearI = Integer.parseInt(year.trim());
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diff changeset
199 if (yearI < 100) {
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parents:
diff changeset
200 if (yearI < 20) {
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diff changeset
201 yearI += 2000;
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202 }
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diff changeset
203 else {
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204 yearI += 1900;
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205 }
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parents:
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206 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
207 }
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parents:
diff changeset
208 catch (NumberFormatException nfe) {
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parents:
diff changeset
209 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
210 }
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parents:
diff changeset
211
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
212 Calendar cal = Calendar.getInstance();
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parents:
diff changeset
213 cal.set(yearI, monthI-1, dayI, 12, 0, 0);
f08fe480092c Moved file parsers to separate package.
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parents:
diff changeset
214 long ms = cal.getTimeInMillis();
f08fe480092c Moved file parsers to separate package.
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parents:
diff changeset
215 cal.setTimeInMillis(ms - ms%1000);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
216 return cal.getTime();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
217 }
5331
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
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parents: 5330
diff changeset
218
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
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parents: 5330
diff changeset
219
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
220 /** Parse one or more files, (useful for debugging), */
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
221 public static void main(String [] args) {
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
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parents: 5330
diff changeset
222
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
223 AtFileParser parser = new AtFileParser();
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
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parents: 5330
diff changeset
224
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
225 try {
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
226 for (String arg: args) {
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
227 parser.parse(new File(arg));
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
228 }
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
229 } catch(Exception e) {
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
230 logger.error("Exception caught " + e);
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
231 }
95af0f3aabfb AtFileParser, README: Added main-method for AT-File-Parsing debugging, doc.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 5330
diff changeset
232 }
1211
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233 }
f08fe480092c Moved file parsers to separate package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org