On Mon, Dec 28, 2009 at 6:04 PM, Don Schwarz <[email protected]> wrote:
> I suspect that WEEK_OF_YEAR and YEAR do not generally behave the way you
> want. See this bug for more details:
> http://bugs.sun.com/view_bug.do?bug_id=4267450
> As for why this works for you locally and not when deployed to App Engine, I
> don't have a satisfactory answer. Have you verified that the timezones are
> the same (by adding "zzz" to your format string)
Hi Don,
thanks for the superfast reply. I tried it again setting the locale
and the timezone explicitly (and also using explicitly the
GregorianCalendar).
==snippp
Calendar calendar = GregorianCalendar.getInstance(
TimeZone.getTimeZone("MEZ"), Locale.GERMAN);
calendar.setTimeInMillis(millisecs);
DateFormat formatter = new SimpleDateFormat("yyyyww");
return formatter.format(calendar.getTime());
== snapp
however the error is still there. Using the timestamp of now
(1262000152901L) my local machine tells me:
"200953" what is correct, but App Engine returns the wrong "200901".
Hmm. What puzzles me is why my local machine can calculate the "ww".
Therefore I am still not too sure if the bug you mentioned (4267450)
from sun still applies to my SDK version 1.6 - because my 1.6 series
can calculate the week without any problems.
The next question then is: What SDK is the App Engine using? I bet
it's not the SDK from Sun, but Open SDK or a derivate. And if that's
the case this might be a bug...
I think I am going to implement the "ww" myself to circumvent the App
Engine behavior and file a bug... Not nice, but I need the
functionality...
Raphael
>
> On Mon, Dec 28, 2009 at 5:54 AM, Raphael André Bauer
> <[email protected]> wrote:
>>
>> Hi,
>>
>>
>> I am currently using this code to calculate the week of the year:
>>
>>
>> ===snip
>> Calendar calendar = Calendar.getInstance();
>> calendar.setTimeInMillis(millisecs);
>> DateFormat formatter = new SimpleDateFormat("yyyyww");
>>
>> String timeStamp = formatter.format(calendar.getTime());
>> ===snap
>>
>> Using the timestamp of now (1262000152901L) my local machine tells me:
>> "200953" what is correct.
>>
>> However, if I execute the very same code on the App Engine I get week
>> "200901" (!) what is strange, because the year is correct, but the
>> week is not...
>>
>>
>> Any ideas?
>>
>> Thanks a lot!
>>
>>
>>
>> Raphael
>>
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>
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