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From Robert Koberg <...@koberg.com>
Subject Re: [OT] Parsing xs:dateTime values
Date Thu, 15 May 2008 16:41:31 GMT
whoops and thanks :)

On Thu, 2008-05-15 at 12:27 -0400, DJohnson@desknetinc.com wrote:
> One cautionary observation about the use of shared SimpleDateFormat 
> instances:  they are not threadsafe. 
> While it seems like a good idea to create these for various formats and 
> hold them as class static or instance members, you need to do something to 
> prevent threading issues.
> I have run into problems using SimpleDateFormat in this way in a 
> multiprocessor environment, which lead to using the following simple 
> subclass instead:
> 
> public class SynchronizedSimpleDateFormat extends SimpleDateFormat {
> 
>   public SynchronizedSimpleDateFormat() {
>     super();
>   }
> 
>   public SynchronizedSimpleDateFormat(String arg0) {
>     super(arg0);
>   }
> 
>   public SynchronizedSimpleDateFormat(String arg0, DateFormatSymbols arg1) 
> {
>     super(arg0, arg1);
>   }
> 
>   public SynchronizedSimpleDateFormat(String arg0, Locale arg1) {
>     super(arg0, arg1);
>   }
> 
>   // Note that we only need to synchronize this format method, as the 
> others all use this one internally
>   public synchronized StringBuffer format(Date arg0, StringBuffer arg1, 
> FieldPosition arg2) {
>     return super.format(arg0, arg1, arg2);
>   }
> 
>   public synchronized Date parse(String arg0, ParsePosition arg1) {
>     return super.parse(arg0, arg1);
>   }
> 
>   public synchronized Date parse(String arg0) throws ParseException {
>     return super.parse(arg0);
>   }
> 
> } 
> 
> 
> 
> Please respond to "Tomcat Users List" <users@tomcat.apache.org>
> 
> To:     Tomcat Users List <users@tomcat.apache.org>
> cc:      
> Subject:        Re: [OT] Parsing xs:dateTime values
> 
> 
> Hi,
> 
> You don't need regexp. Do you mean something like:
> 
> private static final String ISO8601_DATEFORMAT =
> "yyyy-MM-dd'T'HH:mm:ss";
> 
> private static final java.text.SimpleDateFormat ISO8601 = new
> java.text.SimpleDateFormat(
> ISO8601_DATEFORMAT, java.util.Locale.US);
> 
> 
> public static final Date getDateFromIso8601(final String iso8601)
> throws ParseException {
> return ISO8601.parse(iso8601);
> }
> 
> best,
> -Rob
> 
> 
> On Thu, 2008-05-15 at 12:00 -0400, Christopher Schultz wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > All,
> >
> > I posted this on the commons-user mailing list, but I'm not getting any
> > love. I'm cross-posting to see if anyone on this list might have any
> > good ideas.
> >
> > | Hi, I'm looking for an implementation of a String->Date converter for
> > | xs:dateTime, which has an odd format. It's not directly supportable by
> > | java.text.SimpleDateFormat and looks like a regular expression is the
> > | only way to go.
> > |
> > | Does anyone have an implementation they'd care to share, or any tips 
> in
> > | particular? I'd be glad to share whatever I come up with if there 
> isn't
> > | anything already out there.
> >
> > My existing implementation uses regular expressions, which seems a bit
> > overkill.
> >
> > Thanks,
> > - -chris
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.9 (MingW32)
> > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
> >
> > iEYEARECAAYFAkgsXdIACgkQ9CaO5/Lv0PAZawCffPNDLZ3bXczy89Cm1ptDzu1E
> > va4AnRjfICMeUROWQGI40ts3CwZXtEOB
> > =dDWw
> > -----END PGP SIGNATURE-----
> >
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> 
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> 
> 


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