Java Dates类代码示例

import net.fortuna.ical4j.util.Dates; //导入依赖的package包/类
/**
 * Determine if date is a valid occurence in recurring calendar component
 * @param calendar recurring calendar component
 * @param occurrence occurrence date
 * @return true if the occurrence date is a valid occurrence, otherwise false
 */
public boolean isOccurrence(Calendar calendar, Date occurrence) {
    java.util.Calendar cal = Dates.getCalendarInstance(occurrence);
    cal.setTime(occurrence);
   
    // Add a second or day (one unit forward) so we can set a range for
    // finding instances.  This is required because ical4j's Recur apis
    // only calculate recurring dates up until but not including the 
    // end date of the range.
    if(occurrence instanceof DateTime) {
        cal.add(java.util.Calendar.SECOND, 1);
    }
    else {
        cal.add(java.util.Calendar.DAY_OF_WEEK, 1);
    }
    
    Date rangeEnd = 
        org.unitedinternet.cosmo.calendar.util.Dates.getInstance(cal.getTime(), occurrence);
    
    InstanceList instances = getOcurrences(calendar, occurrence, rangeEnd, null);
    
    for(Iterator<Instance> it = instances.values().iterator(); it.hasNext();) {
        Instance instance = it.next();
        if(instance.getRid().getTime()==occurrence.getTime()) {
            return true;
        }
    }
    
    return false;
}
 

import net.fortuna.ical4j.util.Dates; //导入依赖的package包/类
/**
 * Adjust startRange to account for instances that begin before the given
 * startRange, but end after. For example if you have a daily recurring event
 * at 8am lasting for an hour and your startRange is 8:01am, then you
 * want to adjust the range back an hour to catch the instance that is
 * already occurring.
 *
 * @param startRange The date in range we want to adjust.
 * @param start      The date of the event.
 * @param dur        The duration.
 * @return The adjusted start Range date.
 */
private Date adjustStartRangeIfNecessary(Date startRange, Date start, Dur dur) {

    // If start is a Date, then we need to convert startRange to
    // a Date using the timezone present
    if (!(start instanceof DateTime) && timezone != null && startRange instanceof DateTime) {
        return ICalendarUtils.normalizeUTCDateTimeToDate(
                (DateTime) startRange, timezone);
    }

    // Otherwise start is a DateTime

    // If startRange is not the event start, no adjustment necessary
    if (!startRange.after(start)) {
        return startRange;
    }

    // Need to adjust startRange back one duration to account for instances
    // that occur before the startRange, but end after the startRange
    Dur negatedDur = dur.negate();

    Calendar cal = Dates.getCalendarInstance(startRange);
    cal.setTime(negatedDur.getTime(startRange));

    // Return new startRange only if it is before the original startRange 
    if (cal.getTime().before(startRange)) {
        return org.unitedinternet.cosmo.calendar.util.Dates.getInstance(cal.getTime(), startRange);
    }

    return startRange;
}
 

import net.fortuna.ical4j.util.Dates; //导入依赖的package包/类
/**
 * Determine if date is a valid occurence in recurring calendar component
 * @param calendar recurring calendar component
 * @param occurrence occurrence date
 * @return true if the occurrence date is a valid occurrence, otherwise false
 */
public boolean isOccurrence(Calendar calendar, Date occurrence) {
    java.util.Calendar cal = Dates.getCalendarInstance(occurrence);
    cal.setTime(occurrence);
   
    // Add a second or day (one unit forward) so we can set a range for
    // finding instances.  This is required because ical4j's Recur apis
    // only calculate recurring dates up until but not including the 
    // end date of the range.
    if(occurrence instanceof DateTime) {
        cal.add(java.util.Calendar.SECOND, 1);
    }
    else {
        cal.add(java.util.Calendar.DAY_OF_WEEK, 1);
    }
    
    Date rangeEnd = 
        org.unitedinternet.cosmo.calendar.util.Dates.getInstance(cal.getTime(), occurrence);
    
    TimeZone tz = null;
    
    for(Object obj : calendar.getComponents(Component.VEVENT)){
    	VEvent evt = (VEvent)obj;
    	if(evt.getRecurrenceId() == null && evt.getStartDate() != null){
    		tz = evt.getStartDate().getTimeZone();
    	}
    }
    InstanceList instances = getOcurrences(calendar, occurrence, rangeEnd, tz);
    
    for(Iterator<Instance> it = instances.values().iterator(); it.hasNext();) {
        Instance instance = it.next();
        if(instance.getRid().getTime()==occurrence.getTime()) {
            return true;
        }
    }
    
    return false;
}
 

import net.fortuna.ical4j.util.Dates; //导入依赖的package包/类
private NoteItem makeWelcomeItem(OutOfTheBoxContext context) {
    NoteItem item = entityFactory.createNote();
    TimeZone tz= context.getTimezone();
    Locale locale = context.getLocale();
    User user = context.getUser();

    String name = "Welcome to Chandler Server";
    String body = "1. Get a tour of Chandler @ chandlerproject.org/getstarted\n\n2. Consult our FAQ @ chandlerproject.org/faq\n\n3. Read about any known issues with the Preview release @ chandlerproject.org/knownissues\n\n4. Ask questions and give us feedback by joining the Chandler-Users mailing list @ chandlerproject.org/mailinglists. Find out how to get involved @ chandlerproject.org/getinvolved\n\n5. Learn more about the project and access a wide range of design, planning and developer documentation @ chandlerproject.org/wikihome";
    String from = "OSAF";
    String sentBy = "OSAF";
    String to = "";

    item.setUid(contentDao.generateUid());
    item.setDisplayName(name);
    item.setOwner(user);
    item.setClientCreationDate(Calendar.getInstance(tz, locale).getTime());
    item.setClientModifiedDate(item.getClientCreationDate());
    TriageStatus triage = entityFactory.createTriageStatus();
    TriageStatusUtil.initialize(triage);
    item.setTriageStatus(triage);
    item.setLastModifiedBy(user.getUsername());
    item.setLastModification(ContentItem.Action.CREATED);
    item.setSent(Boolean.FALSE);
    item.setNeedsReply(Boolean.FALSE);
    item.setIcalUid(item.getUid());
    item.setBody(body);

    Calendar start = Calendar.getInstance(tz, locale);
    start.set(Calendar.MINUTE, 0);
    start.set(Calendar.SECOND, 0);
    DateTime startDate = (DateTime)
        Dates.getInstance(start.getTime(), Value.DATE_TIME);
    startDate.setTimeZone(vtz(tz.getID()));

    EventStamp es = entityFactory.createEventStamp(item);
    item.addStamp(es);
    es.createCalendar();
    es.setStartDate(startDate);
    es.setDuration(new Dur(0, 1, 0, 0));

    TaskStamp ts = entityFactory.createTaskStamp();
    item.addStamp(ts);

    MessageStamp ms = entityFactory.createMessageStamp();
    item.addStamp(ms);
    ms.setFrom(from);
    ms.setTo(to);
    ms.setOriginators(sentBy);
    ms.setDateSent(DateUtil.formatDate(MessageStamp.FORMAT_DATE_SENT,
                                       item.getClientCreationDate()));

    return item;
}
 

import net.fortuna.ical4j.util.Dates; //导入依赖的package包/类
private NoteItem makeTryOutItem(OutOfTheBoxContext context) {
    NoteItem item = entityFactory.createNote();
    TimeZone tz= context.getTimezone();
    Locale locale = context.getLocale();
    User user = context.getUser();

    String name = "Download Chandler Desktop";
    String body = "Learn more @ chandlerproject.org\n\nDownload @ chandlerproject.org/download";

    TriageStatus triage = entityFactory.createTriageStatus();
    TriageStatusUtil.initialize(triage);
    triage.setCode(TriageStatus.CODE_LATER);

    item.setUid(contentDao.generateUid());
    item.setDisplayName(name);
    item.setOwner(user);
    item.setClientCreationDate(Calendar.getInstance(tz, locale).getTime());
    item.setClientModifiedDate(item.getClientCreationDate());
    item.setTriageStatus(triage);
    item.setLastModifiedBy(user.getUsername());
    item.setLastModification(ContentItem.Action.CREATED);
    item.setSent(Boolean.FALSE);
    item.setNeedsReply(Boolean.FALSE);
    item.setIcalUid(item.getUid());
    item.setBody(body);

    Calendar start = Calendar.getInstance(tz, locale);
    start.add(Calendar.DAY_OF_MONTH, 1);
    start.set(Calendar.HOUR_OF_DAY, 10);
    start.set(Calendar.MINUTE, 0);
    start.set(Calendar.SECOND, 0);
    DateTime startDate = (DateTime)
        Dates.getInstance(start.getTime(), Value.DATE_TIME);
    startDate.setTimeZone(vtz(tz.getID()));

    EventStamp es = entityFactory.createEventStamp(item);
    item.addStamp(es);
    es.createCalendar();
    es.setStartDate(startDate);
    es.setDuration(new Dur(0, 1, 0, 0));

    TaskStamp ts = entityFactory.createTaskStamp();
    item.addStamp(ts);

    return item;
}
 

import net.fortuna.ical4j.util.Dates; //导入依赖的package包/类
MyIcal4JDate(final java.util.Date javaDate, final java.util.TimeZone timeZone)
{
  super(javaDate.getTime(), Dates.PRECISION_DAY, timeZone);
}