XML configuration and performance

[Tomás Pollak <tp...@gmail.com>]

Hello all,

I am currently working on a development project for a web system using
Struts 1.2.9. It is a fairly large system that has been under development
for more than three years now.

During the code-test-and-debug cycle we are forced to restart the server
several times, and we have noticed that reading the XML configuration files
is what takes most of the time ( struts-config.xml, validation.xml and
tiles-defs.xml), approximately 30 secs.

These files are pretty stable now, so having to pay the price to parse the
XML every time seems unnecessary. I was wondering if there is an approach to
configure a Struts application using code instead of XML files. Has anyone
bumped into this problem before?
Is there a tool to transform a Struts/Tiles/Validator XML file into a Java
class that produces the same configuration? I could not find anything in the
documentation.

Thanks in advance,
Tomas

Re: XML configuration and performance

[Chris Pratt <th...@gmail.com>]

On 10/26/07, Laurie Harper <la...@holoweb.net> wrote:
> Tomás Pollak wrote:
> > These files are pretty stable now, so having to pay the price to parse the
> > XML every time seems unnecessary. I was wondering if there is an approach to
> > configure a Struts application using code instead of XML files. Has anyone
> > bumped into this problem before?
> > Is there a tool to transform a Struts/Tiles/Validator XML file into a Java
> > class that produces the same configuration? I could not find anything in the
> > documentation.
>

In theory you could find the point in the code where the files are
loaded, and check to see if serialized versions of the xml tree are
available, if they are load them directly using the Serialization
support in Java, if not load the XML and Serialize the results for
next time.

As I mentioned, this is just theory, I have never even thought of
trying something like this and I have no idea how much faster it would
be than just parsing the XML, it might not be worth all the work.
  (*Chris*)

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org

Re: XML configuration and performance

[Laurie Harper <la...@holoweb.net>]

Tomás Pollak wrote:
> Hello all,
> 
> I am currently working on a development project for a web system using
> Struts 1.2.9. It is a fairly large system that has been under development
> for more than three years now.
> 
> During the code-test-and-debug cycle we are forced to restart the server
> several times, and we have noticed that reading the XML configuration files
> is what takes most of the time ( struts-config.xml, validation.xml and
> tiles-defs.xml), approximately 30 secs.
> 
> These files are pretty stable now, so having to pay the price to parse the
> XML every time seems unnecessary. I was wondering if there is an approach to
> configure a Struts application using code instead of XML files. Has anyone
> bumped into this problem before?
> Is there a tool to transform a Struts/Tiles/Validator XML file into a Java
> class that produces the same configuration? I could not find anything in the
> documentation.

Unfortunately I don't believe such a facility exists. You may be able to 
reduce cycle time by hot deploying but that's the best I can offer :-/ 
Well, either that, or rewrite it all in Rails ;-)

L.


---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org