Improve Search request with selected atttributes
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Key: DIRSERVER-1147
URL: https://issues.apache.org/jira/browse/DIRSERVER-1147
Project: Directory ApacheDS
Issue Type: Improvement
Affects Versions: 1.5.1
Reporter: Emmanuel Lecharny
Fix For: 1.5.2
When searching for some entries, selecting specific attributes, we could
improve the performance by avoiding a lookup() call.
The CollectiveAttributeInterceptor addCollectiveAttributes() method is looking
for a "collectiveAttributeSubentries" attribute which is not present in the
returned entry. The reason is that the search engine remove all attributes
which have not been specifically requested before returning the result, which
is then processed by the interceptors.
Adding another SearchResultFilter (for instance, in the NormalizingInterceptor)
which will remove the attributes not requested by the user and keeping all the
user and operational attributes in the serach engine will allow a great boost
in performance by avoid a useless lookup (estimated to 30%).
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