Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/utils/DateGuesser.java @ 4043:eb5564662e19
Cosmetics, documentation.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 05 Oct 2012 15:36:42 +0200 |
parents | 2e18e12fac11 |
children | 8195396b23ce |
rev | line source |
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1 package de.intevation.flys.utils; |
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2 |
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3 /** |
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4 * Copyright (c) 2006 by Intevation GmbH |
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5 * |
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6 * @author Sascha L. Teichmann (teichmann@intevation.de) |
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7 * |
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8 * This program is free software under the LGPL (>=v2.1) |
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9 * Read the file LGPL coming with FLYS for details. |
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10 */ |
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11 |
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12 import java.util.Date; |
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13 import java.util.Calendar; |
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14 |
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15 import java.util.regex.Pattern; |
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16 import java.util.regex.Matcher; |
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17 |
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18 public final class DateGuesser { |
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19 public static final String [] MONTH = { |
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20 "jan", "feb", "mrz", "apr", "mai", "jun", |
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21 "jul", "aug", "sep", "okt", "nov", "dez" |
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22 }; |
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23 |
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24 public static final int guessMonth(String s) { |
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25 s = s.toLowerCase(); |
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26 for (int i = 0; i < MONTH.length; ++i) |
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27 if (MONTH[i].equals(s)) { |
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28 return i; |
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29 } |
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30 return -1; |
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31 } |
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32 |
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33 public static final Pattern YYYY_MM_DD = |
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34 Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})$"); |
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35 |
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36 public static final Pattern DD_MM_YYYY = |
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37 Pattern.compile("^(\\d{1,2})\\.(\\d{1,2})\\.(\\d{2,4})$"); |
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38 |
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39 public static final Pattern MMM_YYYY = |
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40 Pattern.compile("^(\\d{0,2})\\.?(\\w{3})\\.?(\\d{2,4})$"); |
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41 |
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42 public static final Pattern GARBAGE_YYYY = |
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43 Pattern.compile("^\\D*(\\d{2,4})$"); |
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44 |
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45 public static final Pattern YYYY_MM_DDThh_mm = |
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46 Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2})$"); |
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47 |
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48 public static final Pattern YYYY_MM_DDThh_mm_ss = |
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49 Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})$"); |
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50 |
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51 public static final Pattern DD_MM_YYYYThh_mm = |
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52 Pattern.compile("^(\\d{1,2})\\.(\\d{1,2})\\.(\\d{2,4})T(\\d{1,2}):(\\d{2})$"); |
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53 |
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54 public static final Pattern DD_MM_YYYYThh_mm_ss = |
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55 Pattern.compile("^(\\d{1,2})\\.(\\d{1,2})\\.(\\d{2,4})T(\\d{1,2}):(\\d{2}):(\\d{2})$"); |
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56 |
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57 private DateGuesser() { |
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58 } |
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59 |
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60 public static final int calendarMonth(String month) { |
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61 return calendarMonth(Integer.parseInt(month)); |
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62 } |
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63 |
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64 public static final int calendarMonth(int month) { |
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65 return Math.max(Math.min(month-1, 11), 0); |
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66 } |
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67 |
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68 public static Date guessDate(String s) { |
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69 if (s == null || (s = s.trim()).length() == 0) { |
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70 throw new IllegalArgumentException(); |
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71 } |
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72 |
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73 Matcher m; |
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74 |
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75 m = YYYY_MM_DD.matcher(s); |
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76 |
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77 if (m.matches()) { |
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78 Calendar cal = Calendar.getInstance(); |
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79 String year = m.group(1); |
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80 String month = m.group(2); |
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81 String day = m.group(3); |
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82 cal.set( |
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83 Integer.parseInt(year), |
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84 calendarMonth(month), |
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85 Integer.parseInt(day), |
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86 12, 0, 0); |
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87 return cal.getTime(); |
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88 } |
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89 |
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90 m = DD_MM_YYYY.matcher(s); |
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91 |
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92 if (m.matches()) { |
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93 Calendar cal = Calendar.getInstance(); |
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94 String year = m.group(3); |
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95 String month = m.group(2); |
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96 String day = m.group(1); |
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97 cal.set( |
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98 Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), |
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99 calendarMonth(month), |
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100 Integer.parseInt(m.group(1)), |
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101 12, 0, 0); |
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102 return cal.getTime(); |
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103 } |
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104 |
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105 m = MMM_YYYY.matcher(s); |
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106 |
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107 if (m.matches()) { |
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108 int month = guessMonth(m.group(2)); |
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109 if (month >= 0) { |
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110 Calendar cal = Calendar.getInstance(); |
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111 String year = m.group(3); |
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112 String day = m.group(1); |
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113 cal.set( |
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114 Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), |
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Added date guesser for WST columns.
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115 month, |
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116 day.length() == 0 ? 15 : Integer.parseInt(day), |
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117 12, 0, 0); |
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118 return cal.getTime(); |
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diff
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119 } |
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Added date guesser for WST columns.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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120 } |
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121 |
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122 m = YYYY_MM_DDThh_mm.matcher(s); |
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123 |
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124 if (m.matches()) { |
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125 Calendar cal = Calendar.getInstance(); |
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126 String year = m.group(1); |
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127 String month = m.group(2); |
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128 String day = m.group(3); |
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129 String hour = m.group(4); |
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130 String minute = m.group(5); |
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131 cal.set( |
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132 Integer.parseInt(year), |
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133 calendarMonth(month), |
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134 Integer.parseInt(day), |
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135 Integer.parseInt(hour), |
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136 Integer.parseInt(minute), |
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137 0 |
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138 ); |
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139 return cal.getTime(); |
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140 } |
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141 |
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142 m = YYYY_MM_DDThh_mm_ss.matcher(s); |
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143 |
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144 if (m.matches()) { |
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145 Calendar cal = Calendar.getInstance(); |
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146 String year = m.group(1); |
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147 String month = m.group(2); |
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148 String day = m.group(3); |
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149 String hour = m.group(4); |
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150 String minute = m.group(5); |
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151 String second = m.group(6); |
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152 cal.set( |
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153 Integer.parseInt(year), |
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154 calendarMonth(month), |
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155 Integer.parseInt(day), |
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156 Integer.parseInt(hour), |
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157 Integer.parseInt(minute), |
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158 Integer.parseInt(second) |
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|
159 ); |
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160 return cal.getTime(); |
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|
161 } |
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162 |
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163 m = DD_MM_YYYYThh_mm.matcher(s); |
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164 |
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165 if (m.matches()) { |
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166 Calendar cal = Calendar.getInstance(); |
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167 String year = m.group(3); |
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168 String month = m.group(2); |
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169 String day = m.group(1); |
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170 String hour = m.group(4); |
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171 String minute = m.group(5); |
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172 cal.set( |
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173 Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), |
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diff
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|
174 calendarMonth(month), |
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|
175 Integer.parseInt(day), |
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diff
changeset
|
176 Integer.parseInt(hour), |
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|
177 Integer.parseInt(minute), |
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|
178 0 |
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parents:
diff
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|
179 ); |
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|
180 return cal.getTime(); |
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|
181 } |
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182 |
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183 m = DD_MM_YYYYThh_mm_ss.matcher(s); |
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184 |
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185 if (m.matches()) { |
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|
186 Calendar cal = Calendar.getInstance(); |
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187 String year = m.group(3); |
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|
188 String month = m.group(2); |
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189 String day = m.group(1); |
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diff
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|
190 String hour = m.group(4); |
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|
191 String minute = m.group(5); |
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|
192 String second = m.group(6); |
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|
193 cal.set( |
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|
194 Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
195 calendarMonth(month), |
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|
196 Integer.parseInt(day), |
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parents:
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changeset
|
197 Integer.parseInt(hour), |
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parents:
diff
changeset
|
198 Integer.parseInt(minute), |
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changeset
|
199 Integer.parseInt(second) |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
200 ); |
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parents:
diff
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|
201 return cal.getTime(); |
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|
202 } |
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parents:
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|
203 |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
204 m = GARBAGE_YYYY.matcher(s); |
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|
205 |
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parents:
diff
changeset
|
206 if (m.matches()) { |
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changeset
|
207 Calendar cal = Calendar.getInstance(); |
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|
208 String year = m.group(1); |
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parents:
diff
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|
209 cal.set( |
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changeset
|
210 Integer.parseInt(year) + (year.length() == 2 ? 1900 : 0), |
2e18e12fac11
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
211 5, // month |
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|
212 15, // day |
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|
213 12, 0, 0); |
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|
214 return cal.getTime(); |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
215 } |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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|
216 |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
217 throw new IllegalArgumentException(); |
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|
218 } |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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|
219 |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff
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|
220 public static void main(String [] args) { |
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|
221 for (int i = 0; i < args.length; ++i) { |
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222 System.out.println(args[i] + ": " + guessDate(args[i])); |
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|
223 } |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
224 } |
2e18e12fac11
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
225 } |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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|
226 // end of file |