Hi David -
1) I think the problem is that Ant properties are derived/expanded per
task. That is, populating a property within XMLTask makes it available for
use in another task, but not the current one. I'm not able to investigate
further at the moment, but copying into your property in one XMLTask
invocation then writing using another one appears to work. e.g.
<xmltask source="web.xml">
<copy path="..." property="..."/>
<xmltask>
<xmltask source="web.xml" dest="web-out.xml">
<paste.../>
etc. appears to work for the below.
2) Can you clarify your 'last child' comment below ? <paste> is a synonym
for <insert> and does have some positional control (under/before/after).
But I'm not sure that's your problem.
3) Can you clarify your 'trim' comment below ? Sounds like a possible
feature if I'm interpreting you correctly.
nb. your XPaths may be simplified by using
/:web-app/:description
rather than the verbose but correct 'local-name()' syntax (caveat: not
tried - just by inspection).
Hope that's of use. Please let me know how you get on...
Brian
On Thu, March 27, 2008 23:56, Karr, David wrote:
> It's been a while since I've xmltasked. I'm having some trouble getting
> done what I need.
>
> I have some text in a couple properties (I'm hardcoding the values for
> now) that I want to put into the "/web-app/description" element of a
> web.xml file. If the element is already present, I want to add the new
> text after " - ". If the element wasn't present, then create the
> element with the new text.
>
> I have two current problems:
>
> If the "description" element was present already, it's supposed to
> insert a value referencing the property containing the existing value.
> Instead of the value of the property, it just inserts
> "${existingDescription}". I tried printing out the property value after
> the xmltask tag, and it appears to be fine.
>
> If the "description" element was NOT present, I insert the new
> "description" element (using that weird trick just talked about for
> turning off insertion of empty "xmlns" attributes), but it inserts it as
> the last child of "web-app", not the first. I don't see a way to do
> this cleanly.
>
> I also wish there was a cleaner way to "trim" the resulting output (see
> what I had to do in the first "replace").
>
> Here's my current code:
> ---------------------
> <target name="install-label-info">
> <taskdef name="xmltask"
> classname="com.oopsconsultancy.xmltask.ant.XmlTask"
> classpath="${file.reference.xmltask.jar}"/>
> <property name="label" value="abc"/>
> <property name="labelDesc" value="def"/>
> <xmltask source="${build.web.dir}/WEB-INF/web.xml"
> dest="${build.web.dir}/WEB-INF/web.xml" report="true">
> <copy
> path="/*[local-name()='web-app']/*[local-name()='description']/text()"
> property="existingDescription"/>
> <replace if="existingDescription"
> path="/*[local-name()='web-app']/*[local-name()='description']/text()"
> expandProperties="true"
> ><![CDATA[${existingDescription} - ${label}:
> ${labelDesc}]]></replace>
> <paste unless="existingDescription"
> path="/*[local-name()='web-app']/.">
> <![CDATA[<description
> xmlns="http://java.sun.com/xml/ns/j2ee";>${label}:
> ${labelDesc}</description>]]>
> </paste>
> <copy
> path="/*[local-name()='web-app']/*[local-name()='description']/text()"
> property="newDescription"/>
> </xmltask>
> <echo message="existingDescription[${existingDescription}]"/>
> <echo message="newDescription[${newDescription}]"/>
> </target>
> ---------------------
>
>
>
>
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--
Brian Agnew http://www.oopsconsultancy.com
OOPS Consultancy Ltd
Tel: +44 (0)7720 397526
Fax: +44 (0)20 8682 0012
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