Filters to support servlet-API-level scope configuration
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Key: SLING-1213
URL: https://issues.apache.org/jira/browse/SLING-1213
Project: Sling
Issue Type: Improvement
Components: Engine
Reporter: Mike Pfaff
Currently the filter.scope supports either
- component (comparable to <dispatcher>INCLUDE,FORWARD,ERROR</dispatcher> of the
servlet API)
or
- request (comparable to <dispatcher>REQUEST</dispatcher> of the servlet API)
In certain cases one wants to have finer control over the filter scopes, e.g. have a filter
that would do <dispatcher>REQUEST,FORWARD</dispatcher>, so that the filter is
applied first for the request and then again when you do a requestDispatcher.forward().
Therefore i suggest that the filter.scope should be enhanced as follows:
- Make filter.scope a multi-value property
- Add filter scopes: include, forward and error
- The existing filter scope "component"(quasi an alias for "include,forward,error") should
for backward-compatibility not change.
- Add filter chains for the new filter scopes (don't know if this is needed internally?)
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