[Bug 5739] - Struts fails silently in too many places

[I-Shen Leong <is...@pwrsrc.net>]

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=5739

To help improve error checking, what if we took the digester one step
further and used it to verify that the struts-config.xml file was
well-formed (ie, no duplicates, missing attributes, etc)? This would be
done using an XML schema file. There wouldn't be much coding required
because the digester uses an XML parser that would throw a parsing error
for such cases once a schema is set. If there is still interest, I'll
volunteer to put something together. How does this sound?

I-Shen

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Re: [Bug 5739] - Struts fails silently in too many places

[Joe Germuska <Jo...@Germuska.com>]

At 12:31 AM -0800 1/25/04, I-Shen Leong wrote:
>http://nagoya.apache.org/bugzilla/show_bug.cgi?id=5739
>
>To help improve error checking, what if we took the digester one step
>further and used it to verify that the struts-config.xml file was
>well-formed (ie, no duplicates, missing attributes, etc)? This would be
>done using an XML schema file. There wouldn't be much coding required
>because the digester uses an XML parser that would throw a parsing error
>for such cases once a schema is set. If there is still interest, I'll
>volunteer to put something together. How does this sound?

You can turn on DTD validation of struts-config files with a servlet 
init parameter:
see http://jakarta.apache.org/struts/userGuide/configuration.html#dd_config

This value is true by default; if I recall correctly, validation 
errors are not fatal, but are logged.  For most people, the common 
validation errors are not important to Struts -- they have to do with 
the ordering of elements, which matters not to Digester.

The best way to avoid breaking the struts-config file is to use the 
Struts Console.

Joe
-- 
Joe Germuska            
Joe@Germuska.com  
http://blog.germuska.com    
       "Imagine if every Thursday your shoes exploded if you tied them 
the usual way.  This happens to us all the time with computers, and 
nobody thinks of complaining."
             -- Jef Raskin

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