/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.pim;
import android.content.res.Resources;
import android.text.TextUtils;
import android.text.format.Time;
import java.util.Calendar;
public class EventRecurrence
{
/**
* Thrown when a recurrence string provided can not be parsed according
* to RFC2445.
*/
public static class InvalidFormatException extends RuntimeException
{
InvalidFormatException(String s) {
super(s);
}
}
public EventRecurrence()
{
wkst = MO;
}
/**
* Parse an iCalendar/RFC2445 recur type according to Section 4.3.10.
*/
public native void parse(String recur);
public void setStartDate(Time date) {
startDate = date;
}
public static final int SECONDLY = 1;
public static final int MINUTELY = 2;
public static final int HOURLY = 3;
public static final int DAILY = 4;
public static final int WEEKLY = 5;
public static final int MONTHLY = 6;
public static final int YEARLY = 7;
public static final int SU = 0x00010000;
public static final int MO = 0x00020000;
public static final int TU = 0x00040000;
public static final int WE = 0x00080000;
public static final int TH = 0x00100000;
public static final int FR = 0x00200000;
public static final int SA = 0x00400000;
public Time startDate;
public int freq;
public String until;
public int count;
public int interval;
public int wkst;
public int[] bysecond;
public int bysecondCount;
public int[] byminute;
public int byminuteCount;
public int[] byhour;
public int byhourCount;
public int[] byday;
public int[] bydayNum;
public int bydayCount;
public int[] bymonthday;
public int bymonthdayCount;
public int[] byyearday;
public int byyeardayCount;
public int[] byweekno;
public int byweeknoCount;
public int[] bymonth;
public int bymonthCount;
public int[] bysetpos;
public int bysetposCount;
/**
* Converts one of the Calendar.SUNDAY constants to the SU, MO, etc.
* constants. btw, I think we should switch to those here too, to
* get rid of this function, if possible.
*/
public static int calendarDay2Day(int day)
{
switch (day)
{
case Calendar.SUNDAY:
return SU;
case Calendar.MONDAY:
return MO;
case Calendar.TUESDAY:
return TU;
case Calendar.WEDNESDAY:
return WE;
case Calendar.THURSDAY:
return TH;
case Calendar.FRIDAY:
return FR;
case Calendar.SATURDAY:
return SA;
default:
throw new RuntimeException("bad day of week: " + day);
}
}
public static int timeDay2Day(int day)
{
switch (day)
{
case Time.SUNDAY:
return SU;
case Time.MONDAY:
return MO;
case Time.TUESDAY:
return TU;
case Time.WEDNESDAY:
return WE;
case Time.THURSDAY:
return TH;
case Time.FRIDAY:
return FR;
case Time.SATURDAY:
return SA;
default:
throw new RuntimeException("bad day of week: " + day);
}
}
public static int day2TimeDay(int day)
{
switch (day)
{
case SU:
return Time.SUNDAY;
case MO:
return Time.MONDAY;
case TU:
return Time.TUESDAY;
case WE:
return Time.WEDNESDAY;
case TH:
return Time.THURSDAY;
case FR:
return Time.FRIDAY;
case SA:
return Time.SATURDAY;
default:
throw new RuntimeException("bad day of week: " + day);
}
}
/**
* Converts one of the SU, MO, etc. constants to the Calendar.SUNDAY
* constants. btw, I think we should switch to those here too, to
* get rid of this function, if possible.
*/
public static int day2CalendarDay(int day)
{
switch (day)
{
case SU:
return Calendar.SUNDAY;
case MO:
return Calendar.MONDAY;
case TU:
return Calendar.TUESDAY;
case WE:
return Calendar.WEDNESDAY;
case TH:
return Calendar.THURSDAY;
case FR:
return Calendar.FRIDAY;
case SA:
return Calendar.SATURDAY;
default:
throw new RuntimeException("bad day of week: " + day);
}
}
/**
* Converts one of the internal day constants (SU, MO, etc.) to the
* two-letter string representing that constant.
*
* @throws IllegalArgumentException Thrown if the day argument is not one of
* the defined day constants.
*
* @param day one the internal constants SU, MO, etc.
* @return the two-letter string for the day ("SU", "MO", etc.)
*/
private static String day2String(int day) {
switch (day) {
case SU:
return "SU";
case MO:
return "MO";
case TU:
return "TU";
case WE:
return "WE";
case TH:
return "TH";
case FR:
return "FR";
case SA:
return "SA";
default:
throw new IllegalArgumentException("bad day argument: " + day);
}
}
private static void appendNumbers(StringBuilder s, String label,
int count, int[] values)
{
if (count > 0) {
s.append(label);
count--;
for (int i=0; i<count; i++) {
s.append(values[i]);
s.append(",");
}
s.append(values[count]);
}
}
private void appendByDay(StringBuilder s, int i)
{
int n = this.bydayNum[i];
if (n != 0) {
s.append(n);
}
String str = day2String(this.byday[i]);
s.append(str);
}
@Override
public String toString()
{
StringBuilder s = new StringBuilder();
s.append("FREQ=");
switch (this.freq)
{
case SECONDLY:
s.append("SECONDLY");
break;
case MINUTELY:
s.append("MINUTELY");
break;
case HOURLY:
s.append("HOURLY");
break;
case DAILY:
s.append("DAILY");
break;
case WEEKLY:
s.append("WEEKLY");
break;
case MONTHLY:
s.append("MONTHLY");
break;
case YEARLY:
s.append("YEARLY");
break;
}
if (!TextUtils.isEmpty(this.until)) {
s.append(";UNTIL=");
s.append(until);
}
if (this.count != 0) {
s.append(";COUNT=");
s.append(this.count);
}
if (this.interval != 0) {
s.append(";INTERVAL=");
s.append(this.interval);
}
if (this.wkst != 0) {
s.append(";WKST=");
s.append(day2String(this.wkst));
}
appendNumbers(s, ";BYSECOND=", this.bysecondCount, this.bysecond);
appendNumbers(s, ";BYMINUTE=", this.byminuteCount, this.byminute);
appendNumbers(s, ";BYSECOND=", this.byhourCount, this.byhour);
// day
int count = this.bydayCount;
if (count > 0) {
s.append(";BYDAY=");
count--;
for (int i=0; i<count; i++) {
appendByDay(s, i);
s.append(",");
}
appendByDay(s, count);
}
appendNumbers(s, ";BYMONTHDAY=", this.bymonthdayCount, this.bymonthday);
appendNumbers(s, ";BYYEARDAY=", this.byyeardayCount, this.byyearday);
appendNumbers(s, ";BYWEEKNO=", this.byweeknoCount, this.byweekno);
appendNumbers(s, ";BYMONTH=", this.bymonthCount, this.bymonth);
appendNumbers(s, ";BYSETPOS=", this.bysetposCount, this.bysetpos);
return s.toString();
}
public String getRepeatString() {
Resources r = Resources.getSystem();
// TODO Implement "Until" portion of string, as well as custom settings
switch (this.freq) {
case DAILY:
return r.getString(com.android.internal.R.string.daily);
case WEEKLY: {
if (repeatsOnEveryWeekDay()) {
return r.getString(com.android.internal.R.string.every_weekday);
} else {
String format = r.getString(com.android.internal.R.string.weekly);
StringBuilder days = new StringBuilder();
// Do one less iteration in the loop so the last element is added out of the
// loop. This is done so the comma is not placed after the last item.
int count = this.bydayCount - 1;
if (count >= 0) {
for (int i = 0 ; i < count ; i++) {
days.append(dayToString(r, this.byday[i]));
days.append(",");
}
days.append(dayToString(r, this.byday[count]));
return String.format(format, days.toString());
}
// There is no "BYDAY" specifier, so use the day of the
// first event. For this to work, the setStartDate()
// method must have been used by the caller to set the
// date of the first event in the recurrence.
if (startDate == null) {
return null;
}
int day = timeDay2Day(startDate.weekDay);
return String.format(format, dayToString(r, day));
}
}
case MONTHLY: {
return r.getString(com.android.internal.R.string.monthly);
}
case YEARLY:
return r.getString(com.android.internal.R.string.yearly);
}
return null;
}
public boolean repeatsOnEveryWeekDay() {
if (this.freq != WEEKLY) {
return false;
}
int count = this.bydayCount;
if (count != 5) {
return false;
}
for (int i = 0 ; i < count ; i++) {
int day = byday[i];
if (day == SU || day == SA) {
return false;
}
}
return true;
}
public boolean repeatsMonthlyOnDayCount() {
if (this.freq != MONTHLY) {
return false;
}
if (bydayCount != 1 || bymonthdayCount != 0) {
return false;
}
return true;
}
private String dayToString(Resources r, int day) {
switch (day) {
case SU: return r.getString(com.android.internal.R.string.sunday);
case MO: return r.getString(com.android.internal.R.string.monday);
case TU: return r.getString(com.android.internal.R.string.tuesday);
case WE: return r.getString(com.android.internal.R.string.wednesday);
case TH: return r.getString(com.android.internal.R.string.thursday);
case FR: return r.getString(com.android.internal.R.string.friday);
case SA: return r.getString(com.android.internal.R.string.saturday);
default: throw new IllegalArgumentException("bad day argument: " + day);
}
}
}