Konrad Windszus created SLING-5773:
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Summary: NonExistingResource.getParent() must consider the
resource resolver mapping
Key: SLING-5773
URL: https://issues.apache.org/jira/browse/SLING-5773
Project: Sling
Issue Type: Bug
Components: API
Affects Versions: API 2.11.0
Reporter: Konrad Windszus
Assignee: Konrad Windszus
Consider the case you have a resource resolver mapping from "/content/" to "/".
In the underlying repository you have a resource in "/content/existingParent".
Now it might happen that a NonExistingResource is resolved for path
"/existingParent/nonExistingResource". Since this is pointing towards a
non-existing resource the mapping is not active (i.e. the path will not contain
"/content"). So you end up with a NonExistingResource with path
"/existingParent/nonExistingResource".
Now you call getParent() on this resource.
You would expect to end up with an existing resource in
"/content/existingParent" (because that path does exist in the repository).
Unfortunately due to the logic in AbstractResource.getParent() this just calls
ResourceResolver.getParent() which will not use ResourceResolver.resolve(...)
but rather ResourceResolver.getResource(...) internally. So the mapping is not
considered here. Therefore no resource is found at "/existingParent", although
it does exist at "/content/existingParent".
This is unexpected and wrong in my opinion. So the NonExistingResource should
not rely on AbstractResource.getParent() at all, but rather use its own
implementation relying on ResourceResolver.resolve(...).
See also http://www.mail-archive.com/[email protected]/msg56405.html.
and the related ticket SLING-5757.
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