Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2013 Anders Wisch * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package cron; import org.joda.time.DateTime; public class DefaultCronExpression extends CronExpression { private final String string; private final TimeField second, minute, hour, month, year; private final DayOfWeekField dayOfWeek; private final DayOfMonthField dayOfMonth; protected DefaultCronExpression(String s, boolean seconds, boolean oneBasedDayOfWeek, boolean allowBothDayFields) { string = s; s = s.toUpperCase(); Tokens tokens = new Tokens(s); if (seconds) second = DefaultField.parse(tokens, 0, 59); else second = MatchAllField.instance; minute = DefaultField.parse(tokens, 0, 59); hour = DefaultField.parse(tokens, 0, 23); dayOfMonth = DayOfMonthField.parse(tokens); month = MonthField.parse(tokens); dayOfWeek = DayOfWeekField.parse(tokens, oneBasedDayOfWeek); if (tokens.hasNext()) year = DefaultField.parse(tokens, 0, 0); else year = MatchAllField.instance; if (!allowBothDayFields && !dayOfMonth.isUnspecified() && !dayOfWeek.isUnspecified()) throw new IllegalArgumentException("Day of month and day of week may not both be specified"); } @Override public String toString() { return string; } @Override public boolean matches(DateTime t) { return second.contains(t.getSecondOfMinute()) && minute.contains(t.getMinuteOfHour()) && hour.contains(t.getHourOfDay()) && month.contains(t.getMonthOfYear()) && year.contains(t.getYear()) && dayOfWeek.matches(t) && dayOfMonth.matches(t); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; DefaultCronExpression that = (DefaultCronExpression) o; if (dayOfMonth != null ? !dayOfMonth.equals(that.dayOfMonth) : that.dayOfMonth != null) return false; if (dayOfWeek != null ? !dayOfWeek.equals(that.dayOfWeek) : that.dayOfWeek != null) return false; if (hour != null ? !hour.equals(that.hour) : that.hour != null) return false; if (minute != null ? !minute.equals(that.minute) : that.minute != null) return false; if (month != null ? !month.equals(that.month) : that.month != null) return false; if (second != null ? !second.equals(that.second) : that.second != null) return false; if (!string.equals(that.string)) return false; if (year != null ? !year.equals(that.year) : that.year != null) return false; return true; } @Override public int hashCode() { int result = string.hashCode(); result = 31 * result + (second != null ? second.hashCode() : 0); result = 31 * result + (minute != null ? minute.hashCode() : 0); result = 31 * result + (hour != null ? hour.hashCode() : 0); result = 31 * result + (month != null ? month.hashCode() : 0); result = 31 * result + (year != null ? year.hashCode() : 0); result = 31 * result + (dayOfWeek != null ? dayOfWeek.hashCode() : 0); result = 31 * result + (dayOfMonth != null ? dayOfMonth.hashCode() : 0); return result; } }