src/org/mxchange/jcontactsbusiness/model/opening_time/dayofweek/DayOfTheWeek.java

   1 /*
   2  * Copyright (C) 2016 - 2018 Free Software Foundation
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.jcontactsbusiness.model.opening_time.dayofweek;
  18
  19 import java.text.SimpleDateFormat;
  20 import java.util.Calendar;
  21 import java.util.Date;
  22 import java.util.GregorianCalendar;
  23
  24 /**
  25  * An enumeration suitable for persisting
  26  * <p>
  27  * @author Roland Häder<roland@mxchange.org>
  28  */
  29 public enum DayOfTheWeek {
  30         SUNDAY {
  31                 @Override
  32                 public int toCalendar () {
  33                         return Calendar.SUNDAY;
  34                 }
  35
  36         },
  37         MONDAY {
  38                 @Override
  39                 public int toCalendar () {
  40                         return Calendar.MONDAY;
  41                 }
  42         },
  43         TUESDAY {
  44                 @Override
  45                 public int toCalendar () {
  46                         return Calendar.TUESDAY;
  47                 }
  48         },
  49         WEDNESDAY {
  50                 @Override
  51                 public int toCalendar () {
  52                         return Calendar.WEDNESDAY;
  53                 }
  54         },
  55         THURSDAY {
  56                 @Override
  57                 public int toCalendar () {
  58                         return Calendar.THURSDAY;
  59                 }
  60         },
  61         FRIDAY {
  62                 @Override
  63                 public int toCalendar () {
  64                         return Calendar.FRIDAY;
  65                 }
  66         },
  67         SATURDAY {
  68                 @Override
  69                 public int toCalendar () {
  70                         return Calendar.SATURDAY;
  71                 }
  72         };
  73
  74         public abstract int toCalendar ();
  75
  76         public static DayOfTheWeek fromCalendarDay (final int day) {
  77
  78                 for (DayOfTheWeek dayOfWeek : DayOfTheWeek.values()) {
  79                         if (dayOfWeek.toCalendar() == day) {
  80                                 return dayOfWeek;
  81                         }
  82                 }
  83
  84                 return null; // Consider throwing IllegalArgumentException
  85         }
  86
  87         public static DayOfTheWeek getByDate (final Date date) {
  88                 Calendar calendar = GregorianCalendar.getInstance();
  89                 calendar.setTime(date);
  90                 return fromCalendarDay(calendar.get(Calendar.DAY_OF_WEEK));
  91         }
  92
  93         /*
  94          * Should return the localized day of the week
  95          */
  96         @Override
  97         public String toString () {
  98                 Calendar c = new GregorianCalendar();
  99                 c.set(Calendar.DAY_OF_WEEK, this.toCalendar());
 100                 SimpleDateFormat sdf = (SimpleDateFormat) SimpleDateFormat
 101                                                  .getInstance();
 102                 sdf.applyPattern("EEEEEEEEEE"); //NOI18N
 103
 104                 return sdf.format(c.getTime());
 105         }
 106
 107 }