Mercurial > dive4elements > framework
annotate artifacts-common/src/main/java/org/dive4elements/artifacts/common/utils/DateUtils.java @ 561:1c2ce0501305
Added some methods for Abflussjahr
| author | mschaefer |
|---|---|
| date | Mon, 24 Sep 2018 17:59:17 +0200 |
| parents | 415df0fc4fa1 |
| children |
| rev | line source |
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475
415df0fc4fa1
Fixed maven group ids
Sascha L. Teichmann <teichmann@intevation.de>
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1 package org.dive4elements.artifacts.common.utils; |
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389
ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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2 |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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changeset
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3 import java.util.Calendar; |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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4 import java.util.Date; |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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5 |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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6 |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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7 public class DateUtils { |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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8 |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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9 private DateUtils() { |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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10 } |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff
changeset
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11 |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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changeset
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12 |
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Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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13 /** |
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ea263ee87563
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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14 * This function extracts the year as int value from <i>date</i>. |
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ea263ee87563
Added new helper class DateUtils.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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15 * |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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16 * @param date The source date. |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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17 * |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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18 * @return the year as integer or -1 if date is empty. |
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ea263ee87563
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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19 */ |
| 561 | 20 public static int getYearFromDate(final Date date) { |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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21 if (date == null) { |
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22 return -1; |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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23 } |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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24 |
| 561 | 25 final Calendar cal = Calendar.getInstance(); |
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parents:
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26 cal.setTime(date); |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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27 |
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28 return cal.get(Calendar.YEAR); |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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29 } |
| 561 | 30 |
| 31 /** | |
| 32 * Gets the abfluss year (1.11. - 31.10.) a date belongs to | |
| 33 * | |
| 34 * @return the abfluss year, or -1 | |
| 35 */ | |
| 36 public static int getAbflussYearFromDate(final Date date) { | |
| 37 if (date == null) | |
| 38 return -1; | |
| 39 final Calendar cal = Calendar.getInstance(); | |
| 40 cal.setTime(getAbflussYear(date)[1]); | |
| 41 return cal.get(Calendar.YEAR); | |
| 42 } | |
| 43 | |
| 44 /** | |
| 45 * Gets the date range of the abfluss year (1.11. - 31.10.) a date belongs to | |
| 46 * | |
| 47 * @return [abfluss year start date, abfluss year end date], or null | |
| 48 */ | |
| 49 public static Date[] getAbflussYear(final Date date) { | |
| 50 if (date == null) | |
| 51 return null; | |
| 52 final Calendar cal = Calendar.getInstance(); | |
| 53 cal.setTime(date); | |
| 54 final int qYear = (cal.get(Calendar.MONTH) >= 10) ? cal.get(Calendar.YEAR) + 1 : cal.get(Calendar.YEAR); | |
| 55 return getAbflussYear(qYear); | |
| 56 } | |
| 57 | |
| 58 /** | |
| 59 * Gets the date range of the abfluss year (1.11. - 31.10.) a date belongs to | |
| 60 * | |
| 61 * @return [abfluss year start date, abfluss year end date], or null | |
| 62 */ | |
| 63 public static Date[] getAbflussYear(final int year) { | |
| 64 final Calendar calStart = Calendar.getInstance(); | |
| 65 calStart.clear(); | |
| 66 calStart.set(year - 1, 10, 1, 0, 0, 0); | |
| 67 final Calendar calEnd = Calendar.getInstance(); | |
| 68 calEnd.clear(); | |
| 69 calEnd.set(year, 9, 31, 23, 59, 59); | |
| 70 return new Date[] { calStart.getTime(), calEnd.getTime() }; | |
| 71 } | |
| 72 | |
| 73 /** | |
| 74 * Gets the date range of the abfluss year following a date, or that of the date itself if it's a nov-1 | |
| 75 * | |
| 76 * @return [abfluss year start date, abfluss year end date], or null | |
| 77 */ | |
| 78 public static Date[] getNextAbflussYear(final Date date) { | |
| 79 if (date == null) | |
| 80 return null; | |
| 81 final Calendar cal = Calendar.getInstance(); | |
| 82 cal.setTime(date); | |
| 83 final int nextQYear = cal.get(Calendar.YEAR) + 1; | |
| 84 switch (cal.get(Calendar.MONTH)) { | |
| 85 case 10: | |
| 86 if (cal.get(Calendar.DAY_OF_MONTH) >= 2) | |
| 87 return getAbflussYear(nextQYear + 1); | |
| 88 break; | |
| 89 case 11: | |
| 90 return getAbflussYear(nextQYear + 1); | |
| 91 default: | |
| 92 break; | |
| 93 } | |
| 94 return getAbflussYear(nextQYear); | |
| 95 } | |
| 96 | |
| 97 /** | |
| 98 * Gets the date range of the abfluss year preceeding a date, or that of the date itself if it's a oct-31 | |
| 99 * | |
| 100 * @return [abfluss year start date, abfluss year end date], or null | |
| 101 */ | |
| 102 public static Date[] getPreviousAbflussYear(final Date date) { | |
| 103 if (date == null) | |
| 104 return null; | |
| 105 final Calendar cal = Calendar.getInstance(); | |
| 106 cal.setTime(date); | |
| 107 final int previousQYear = cal.get(Calendar.YEAR); | |
| 108 switch (cal.get(Calendar.MONTH)) { | |
| 109 case 10: | |
| 110 case 11: | |
| 111 break; | |
| 112 case 9: | |
| 113 if (cal.get(Calendar.DAY_OF_MONTH) <= 30) | |
| 114 return getAbflussYear(previousQYear - 1); | |
| 115 break; | |
| 116 default: | |
| 117 return getAbflussYear(previousQYear - 1); | |
| 118 } | |
| 119 return getAbflussYear(previousQYear); | |
| 120 } | |
| 121 | |
| 122 /** | |
| 123 * Gets the date of the new year's day following a date, or the date itself with 0-time if it's a jan-1 | |
| 124 * | |
| 125 * @return a newyear's date, or null | |
| 126 */ | |
| 127 public static Date getNextNewYear(final Date date) { | |
| 128 if (date == null) | |
| 129 return null; | |
| 130 final Calendar cal = Calendar.getInstance(); | |
| 131 cal.setTime(date); | |
| 132 final int offset = (cal.get(Calendar.DAY_OF_YEAR) == 1) ? 0 : 1; | |
| 133 cal.set(cal.get(Calendar.YEAR) + offset, 0, 1, 0, 0, 0); | |
| 134 return cal.getTime(); | |
| 135 } | |
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ea263ee87563
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff
changeset
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136 } |