001/* 002 * #%L 003 * Netarchivesuite - harvester 004 * %% 005 * Copyright (C) 2005 - 2014 The Royal Danish Library, the Danish State and University Library, 006 * the National Library of France and the Austrian National Library. 007 * %% 008 * This program is free software: you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation, either version 2.1 of the 011 * License, or (at your option) any later version. 012 * 013 * This program is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU General Lesser Public License for more details. 017 * 018 * You should have received a copy of the GNU General Lesser Public 019 * License along with this program. If not, see 020 * <http://www.gnu.org/licenses/lgpl-2.1.html>. 021 * #L% 022 */ 023package dk.netarkivet.harvester.datamodel; 024 025import dk.netarkivet.common.exceptions.ArgumentNotValid; 026 027/** 028 * Enumeration of the possible time units used for frequencies in schedules. 029 */ 030public enum TimeUnit { 031 032 /** 033 * 'No time unit' is only included for historic reasons, since 0 did not denote a timeunit. 034 */ 035 NOTIMEUNIT, 036 /** 037 * Hourly time unit will result in a frequency where only "on minute" will be set, i.e. "on hour", "on day of week" 038 * and "on day of month" are unused. 039 */ 040 HOURLY, 041 /** 042 * Daily time unit will result in a frequency where only "on minute" and "on hour" will be set, i.e. 043 * "on day of week" and "on day of month" are unused. 044 */ 045 DAILY, 046 /** 047 * Weekly time unit will result in a frequency where only "on minute", "on hour" and "on day of week" will be set, 048 * i.e. "on day of month" is unused. 049 */ 050 WEEKLY, 051 /** 052 * Monthly time unit will result in a frequency where only "on minute", "on hour" and "on day of month" will be set, 053 * i.e. "on day of week" is unused. 054 */ 055 MONTHLY, 056 /** 057 * For minute time units, it doesn't make sense to use any additional constraints: "on minute", "on hour", 058 * "on day of month" or "on day of week" 059 */ 060 MINUTE; 061 062 /** 063 * Helper method that gives a proper object from e.g. a DB-stored value. 064 * 065 * @param tu a certain integer for a timeunit 066 * @return the TimeUnit related to a certain integer 067 * @throws ArgumentNotValid If argument tu is invalid (i.e. does not correspond to a TimeUnit) 068 */ 069 public static TimeUnit fromOrdinal(int tu) { 070 switch (tu) { 071 case 1: 072 return HOURLY; 073 case 2: 074 return DAILY; 075 case 3: 076 return WEEKLY; 077 case 4: 078 return MONTHLY; 079 case 5: 080 return MINUTE; 081 default: 082 throw new ArgumentNotValid("Invalid time unit " + tu); 083 } 084 } 085 086}