DateTime getTime()
{
DateTime gc;
// absoulte time, this is easy
if (type == TYPE_ABSOLUTE)
{
gc = new DateTime(year + 1900, month, day, hour, min, sec);
}
// relative time, we need a context to evaluate it
else if (context != null && context.type == TYPE_ABSOLUTE)
{
gc = context.getTime();
}
// how would I guess what time it was?
else
{
throw new ApplicationException("Relative times like '" + dateString +
"' require proper absolute context to be evaluated");
}
gc = gc.AddYears(dyear);
gc = gc.AddMonths(dmonth);
gc = gc.AddDays(dday);
gc = gc.AddHours(dhour);
gc = gc.AddMinutes(dmin);
gc = gc.AddSeconds(dsec);
return(gc);
}
/**
* Use this static method to resolve relative time references and obtain the corresponding
* Calendar objects. Example:<p>
* <pre>
* TimeParser pStart = new TimeParser("now-1month"); // starting time
* TimeParser pEnd = new TimeParser("start+1week"); // ending time
* TimeSpec specStart = pStart.parse();
* TimeSpec specEnd = pEnd.parse();
* GregorianCalendar[] gc = TimeSpec.getTimes(specStart, specEnd);
* </pre>
* @param spec1 Starting time specification
* @param spec2 Ending time specification
* @return Two element array containing Calendar objects
*/
public static DateTime[] getTimes(TimeSpec spec1, TimeSpec spec2)
{
if (spec1.type == TYPE_START || spec2.type == TYPE_END)
{
throw new ArgumentException("Recursive time specifications not allowed");
}
spec1.context = spec2;
spec2.context = spec1;
return(new[] {
spec1.getTime(),
spec2.getTime()
});
}
/**
* Use this static method to resolve relative time references and obtain the corresponding
* Calendar objects. Example:<p>
* <pre>
* TimeParser pStart = new TimeParser("now-1month"); // starting time
* TimeParser pEnd = new TimeParser("start+1week"); // ending time
* TimeSpec specStart = pStart.parse();
* TimeSpec specEnd = pEnd.parse();
* GregorianCalendar[] gc = TimeSpec.getTimes(specStart, specEnd);
* </pre>
* @param spec1 Starting time specification
* @param spec2 Ending time specification
* @return Two element array containing Calendar objects
*/
public static DateTime[] getTimes(TimeSpec spec1, TimeSpec spec2)
{
if (spec1.type == TYPE_START || spec2.type == TYPE_END)
{
throw new ArgumentException("Recursive time specifications not allowed");
}
spec1.context = spec2;
spec2.context = spec1;
return new[] {
spec1.getTime(),
spec2.getTime()
};
}