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From "Peter Locke" <plo...@abebooks.com>
Subject RE: Upgrade to velocity 1.5 - a few questions
Date Wed, 13 Jun 2007 04:47:59 GMT
Thanks Nathan, good stuff.  I'll let you know if I have any questions about
the CommonsLogLogChute.  Anyone for the third question? ;)

> 3) I notice that JDOM 1.0 is a dependency now.  We are still on beta9 
> - what would be the potential side effects of not upgrading?  Of 
> course I'd like to upgrade to 1.0 but that may not be an option.


-----Original Message-----
From: Nathan Bubna [mailto:nbubna@gmail.com] 
Sent: Tuesday, June 12, 2007 9:02 AM
To: Velocity Users List
Subject: Re: Upgrade to velocity 1.5 - a few questions

On 6/11/07, Peter Locke <plocke@abebooks.com> wrote:
> I would like to upgrade to velocity 1.5 from 1.4 and take advantage of the
> fixes and improvements.   I have a few questions:
>
> 1) I would like to remove the now deprecated VelocityServlet, however 
> the size and scope of our webapp and the number of different servlets 
> extending VelocityServlet means it would be impossible to migrate
everything to the
> recommended structure of VelocityViewServlet.   Is it possible to extend
> VelocityViewServlet instead of VelocityServlet with no (or minimal) 
> ripple impact to the subclasses?  If not what is the recommended approach?

yeah, it should be pretty trivial.  ideally you should be able to just change
them from extending VelocityServlet to extending
VelocityViewServlet. (potentially just a two line change.   there have
been a few things deprecated internally in VelocityServlet that the
VelocityViewServlet doesn't support (like the old "properties"
init-param key instead of "org.apache.velocity.properties"), but even those
should be pretty easy to upgrade.

please let us know if you run into any trouble.  i'd like this switch to be
as painless as reasonable for users.

> 2) Logging improvements - our webapp business level code logs to the 
> underlying log system via apache commons logging - is it possible to 
> have Velocity log to commons logging automatically also, or does this 
> require a custom implementation of LogChute?

the CommonsLogLogChute will be in Velocity 1.6.  i just didn't think
to put it in 1.5, and no one else brought it up.   it should, however,
be fairly trivial for you to grab that class from the trunk (or i can grab it
for you), compile it in your app and use it with 1.5.  just a matter of
pointing to it in your velocity.properties.  and again, i'll be happy to
answer any questions about getting that done.

> 3) I notice that JDOM 1.0 is a dependency now.  We are still on beta9 
> - what would be the potential side effects of not upgrading?  Of 
> course I'd like to upgrade to 1.0 but that may not be an option.
>
> thanks for your help.
>
> --
> Peter Locke
> Senior Engineer / Dev Lead
> www.abebooks.com <http://www.abebooks.com/>
>
> t: 250.412.3240
> f: 250.475-6014
> e: plocke@abebooks.com <mailto:plocke@abebooks.com>
> --
> P.S. I'm currently reading Rainbow Six 
> <http://www.abebooks.com/servlet/SearchResults?bx=off&sts=t&ds=30&bi=0
> &an=Tom
> +Clancy&tn=Rainbow+Six>  by Tom Clancy
>
>

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