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Subject Réf. : RE: Réf. : Re: Commons Validator
Date Thu, 07 Nov 2002 16:03:21 GMT

> I fail to see the problem here... Ant has two types of tasks. The core
> with no external dependencies (everything they need is either in Ant or
> Java Standard Library circa 1.1!), and the optional tasks which have
> additional external dependencies. There are many such external tasks.
> So your custom task can (and probably should!) use Commons Validator, and
> simply state that dependencies so that users of your task fetch it. The
> <script> task needs BSF and a BSF compatible scripting language JAR, and
> everything peachy.
> So no, Commons Validator will not become part of Ant, but that shouldn't
> stop you from using it! --DD

Yes, that's already done.

> PS: And if you really improved on the Commons Validator code, maybe you
> should contribute your code there...

Well it's just about 8% faster:
Here the optimization (but it's very simple and can be applied to the other methods)

    public static boolean isByteApache(String value) {
       return formatByteApache(value) != null;

    public static Byte formatByteApache(String value) {
       Byte result = null;

       try {
          result = new Byte(value); // <-- assign is not needed!
       } catch (Exception e) {

       return result;

    public static final boolean isByte( String value )
            new Byte( value );
            return true;
        catch( Exception e )
            return false;


ps: don't have the time to make a patch (sorry)

> -----Original Message-----
> From: []
> Sent: Thursday, November 07, 2002 9:22 AM
> To:
> Subject: Réf. : Re: Commons Validator
> Well I'm currently working on JOE
> (
> and I need some methods to tell me if a string is a byte
> or a long... Indeed, I can code them but I found the Commons
> Validator package which is part of jakarta so I thought this
> package could help other people as I need it.
> To tell you the trutt I've already coded those methods
> inspired on those in the Commons Validator, and they are faster ;-)
> Well, it is up to you...
> Loïc
> --
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