> From: Adrian Beech [mailto:[EMAIL PROTECTED]
>
> G'day,
>
> I was wondering if it is possible to include the value of properties
> defined in the build.xml file in source files such as web.xml? I have
> three staging environments which have platform specific attributes such
> as JDBC connections strings, application headers, etc. These values are
> defined in the web.xml file and it would make life a whole lot easier if
> they could be defined as properties in the build.xml file and
> substituted in the right places within the source files when the
> appropriate target is specified.
>
> One of the annoying things I need to do each time I progress an
> application from one environment to another is to remember to edit the
> web.xml file so that the resulting package has the appropriate
> application/environment attributes. Things would be a hole lot nicer if
> I could simply type "ant dev", "ant test" or "ant prod" and have
> everything set up accordingly.
>
> I would appreciate any help in this matter.
Two distinct approaches:
(1) Use Ant-like properties in the web.xml files (of the form ${name}),
and use the <replaceproperties> Filter. Your web.xml files thus act
as templates, and your <copy> (+filter) the actual files to use at
runtime.
(2) Extract the values from the web.xml files, and use them in Ant.
This is IMHO more difficult/cumbersome. You might get be able to
to use <xmlproperty>, the JXPATH-based custom Property Helper
defined somewhere by Nicola Ken Barrozi, or finally XSL your
web.xml files into a property file your load, or a build file
you import in the main build file.
I'd go with (1) myself, but I don't know of your specifics. --DD
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