/* * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/** * RuleDay class represents the value of the "ON" field. The day of * week values start from 1 following the {@link java.util.Calendar} * convention. * * @since 1.4
*/ class RuleDay { privatestaticfinal Map<String,DayOfWeek> abbreviations = new HashMap<String,DayOfWeek>(7); static { for (DayOfWeek day : DayOfWeek.values()) {
abbreviations.put(day.getAbbr(), day);
}
}
private String dayName = null; private DayOfWeek dow; privateboolean lastOne = false; privateint soonerOrLater = 0; privateint thanDayOfMonth; // day of month (e.g., 8 for "Sun>=8")
RuleDay() {
}
RuleDay(int day) {
thanDayOfMonth = day;
}
int getDay() { return thanDayOfMonth;
}
/** * @return the day of week value (1-based)
*/ int getDayOfWeekNum() { return dow.value();
}
/** * @return true if this rule day represents the last day of * week. (e.g., lastSun).
*/ boolean isLast() { return lastOne;
}
/** * @return true if this rule day represents the day of week on or * later than (after) the {@link #getDay}. (e.g., Sun>=1)
*/ boolean isLater() { return soonerOrLater > 0;
}
/** * @return true if this rule day represents the day of week on or * earlier than (before) the {@link #getDay}. (e.g., Sun<=15)
*/ boolean isEarlier() { return soonerOrLater < 0;
}
/** * @return true if this rule day represents an exact day.
*/ boolean isExact() { return soonerOrLater == 0;
}
/** * Parses the "ON" field and constructs a RuleDay. * @param day an "ON" field string (e.g., "Sun>=1") * @return a RuleDay representing the given "ON" field
*/ static RuleDay parse(String day) {
RuleDay d = new RuleDay(); if (day.startsWith("last")) {
d.lastOne = true;
d.dayName = day.substring(4);
d.dow = getDOW(d.dayName);
} else { int index; if ((index = day.indexOf(">=")) != -1) {
d.dayName = day.substring(0, index);
d.dow = getDOW(d.dayName);
d.soonerOrLater = 1; // greater or equal
d.thanDayOfMonth = Integer.parseInt(day.substring(index+2));
} elseif ((index = day.indexOf("<=")) != -1) {
d.dayName = day.substring(0, index);
d.dow = getDOW(d.dayName);
d.soonerOrLater = -1; // less or equal
d.thanDayOfMonth = Integer.parseInt(day.substring(index+2));
} else { // it should be an integer value.
d.thanDayOfMonth = Integer.parseInt(day);
}
} return d;
}
/** * Converts this RuleDay to the SimpleTimeZone day rule. * @return the converted SimpleTimeZone day rule
*/ int getDayForSimpleTimeZone() { if (isLast()) { return -1;
} return isEarlier() ? -getDay() : getDay();
}
/** * Converts this RuleDay to the SimpleTimeZone day-of-week rule. * @return the SimpleTimeZone day-of-week rule value
*/ int getDayOfWeekForSimpleTimeZoneInt() { if (isEarlier() || isLater()) { return -getDayOfWeekNum();
} return isLast() ? getDayOfWeekNum() : 0;
}
/** * @return the string representation of the {@link * #getDayOfWeekForSimpleTimeZoneInt} value
*/
String getDayOfWeekForSimpleTimeZone() { int d = getDayOfWeekForSimpleTimeZoneInt(); if (d == 0) { return"0";
}
String sign = ""; if (d < 0) {
sign = "-";
d = -d;
} return sign + toString(d);
}
/** * Converts the specified day of week value to the day-of-week * name defined in {@link java.util.Calenda}. * @param dow 1-based day of week value * @return the Calendar day of week name with "Calendar." prefix. * @throws IllegalArgumentException if the specified dow value is out of range.
*/ static String toString(int dow) { if (dow >= DayOfWeek.SUNDAY.value() && dow <= DayOfWeek.SATURDAY.value()) { return"Calendar." + DayOfWeek.values()[dow - 1];
} thrownew IllegalArgumentException("wrong Day_of_Week number: " + dow);
}
}
Messung V0.5
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.