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https://issues.apache.org/jira/browse/SLING-2708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550935#comment-13550935
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Tyson Norris commented on SLING-2708:
-------------------------------------
I think the reason the super type test works for unadapted Resource is that
SlingServletResolver creates a ResourceWrapper with an admin resolver, so the
admin resolver has visibility of the super types.
However it when the wrapped Resource adaptTo() is called, it delegates to the
non-wrapped resource, and ultimately it is the non-wrapped resource that ends
up at the AdapterFactory, without any admin resolver to use for testing super
types.
For now I added the same decorating (as in SlingServletResolver) to my
AdapterFactory, passing the wrapped Resource to my adaptertype, and it works,
but I think there may still some oddities if you ever get the children of the
resource that was wrapped, etc.
> ResourceUtil.isA() fails for adapted Resources unless user is admin
> -------------------------------------------------------------------
>
> Key: SLING-2708
> URL: https://issues.apache.org/jira/browse/SLING-2708
> Project: Sling
> Issue Type: Bug
> Components: ResourceResolver
> Reporter: Tyson Norris
>
> Summary - adapting a Resource to a specified type, loses the ability to test
> the Resources super types using ResourceUtil.isA(), UNLESS user is admin
> 1. TypeA is defined as:
> class TypeA {
> private Resource res;
> public boolean isTypeB(){
> return ResourceUtil.isA(res, "some/type");
> }
> }
> 2. TypeA adapter is an AdapterFactory to adapt Resource -> TypeA
> 3. /some/res/path is a resource whose sling:resourceSuperType 2 levels up is
> "/apps/some/type"
> 4. In a JSP, we use code like:
> TypeA typeA = resource.adaptTo(TypeA)
> if (!typeA.isTypeB()){
> //FAIL: typeA.isTypeB() is actually true
> }
> Note that:
> ResourceUtil.isA(resource, "some/type") == true
> but
> ResourceUtil.isA(typeA.resource, "some/type") == false
> (unless user is admin)
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