[ http://issues.apache.org/jira/browse/FELIX-6?page=all ]
Richard S. Hall updated FELIX-6:
--------------------------------
Component: Specification compliance
> Re-implement URL Handlers service
> ---------------------------------
>
> Key: FELIX-6
> URL: http://issues.apache.org/jira/browse/FELIX-6
> Project: Felix
> Type: Improvement
> Components: Specification compliance
> Reporter: Richard S. Hall
> Assignee: Richard S. Hall
>
> The URL Handlers service was previously distributed as a separate bundle in
> Oscar, but this approach is infeasible due to changes in the spec as well as
> changes in the framework implementation itself to support
> ClassLoader.getResources().
> In short, the R4 spec says that it must be possible to create resource URLs
> from strings, thus this requires that the framework register a stream handler
> factory. Further, to support access to resources inside embedded JAR files
> inside a bundle JAR file for ClassLoader.getResources(), it is necessary to
> encode in the returned URL which embedded JAR the resource is in, e.g.:
> http://<bundle-id>/<embedded-jar>/<path-to-resource>
> The framework already extracts the embedded JAR files for more efficient
> access and no other bundles can access the extracted embedded JAR files in
> the bundle cache, so it makes sense that only the framework can implement
> this efficiently.
> So, URL Handlers service should be implemented by the framework, however,
> there should be a property that enables/disables the setting of the URL
> stream handler factory, because some applications that will embed Felix may
> not want this set since it is a singleton. If this is disabled, though, it
> will not be spec compliant and it will not be possible to create resource
> URLs from strings (which is how R3 worked).
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