Problem

A Forum reader recently asked:

“Is there any way, without resorting to XSLT, to strip all null values from all operations, either at the Input, Output, the Command or both?”

And here’s the response from Will Schneider …

Solution

I use these rules:

<rule>
<description>Strimp Empty Values [Add]</description>
  <conditions>
  <and>
    <if-operation mode="case" op="equal">add</if-operation>
  </and>
  </conditions>
  <actions>
    <do-strip-xpath expression="add-attr[value='']"/>
    <do-strip-xpath expression="add-attr[not(*)]"/>
  </actions>
</rule>

<rule>
<description>Strimp Empty Values [Modify]</description>
  <conditions>
  <or>
    <if-operation mode="case" op="equal">modify</if-operation>
    <if-operation mode="case" op="equal">sync</if-operation>
  </or>
  </conditions>
  <actions>
    <do-strip-xpath expression="modify-attr/add-value[value='']"/>
    <do-strip-xpath expression="modify-attr[not(*)]"/>
  </actions>
</rule>

Although there is probably a more efficient way to do this, it does work well.

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Disclaimer: As with everything else at NetIQ Cool Solutions, this content is definitely not supported by NetIQ, so Customer Support will not be able to help you if it has any adverse effect on your environment.  It just worked for at least one person, and perhaps it will be useful for you too.  Be sure to test in a non-production environment.

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By: descent
Nov 14, 2007
6:33 am
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