Re: [OT] Parsing xs:dateTime values

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@...>

To:     Tomcat Users List <users@...>
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: in
> | particular? I'd be glad to share whatever I come up with if there
isn't

---------------------------------------------------------------------
To start a new topic, e-mail: users@...
To unsubscribe, e-mail: users-unsubscribe@...
For additional commands, e-mail: users-help@...