Carsten Ziegeler created SLING-8478:
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Summary: Adding method to match Requirements and Capabilities
Key: SLING-8478
URL: https://issues.apache.org/jira/browse/SLING-8478
Project: Sling
Issue Type: Improvement
Components: Feature Model
Reporter: Carsten Ziegeler
Assignee: Carsten Ziegeler
Fix For: Feature Model 1.0.4, Feature Model IO 1.0.4
a feature can have requirements and capabilities, we use the OSGi interfaces
for this. However, there is currently no easy way to match requirements and
capabilities as these interfaces do not provide a method for it.
For example, if you want to know whether a requirement is met by the available
capabilities, that's not possible. While the OSGi specs provide a resolver that
approach is way too heavy and not really suited for simple use cases. The
resolver is used by the framework for bundle wiring.
Therefore I propose we add a simple interface like
MatchingRequirement extends Requirement {
boolean match(Capability cap);
}
and this allows to match requirements and capabilities. As we're using Apache
Felix utils for our reqs/caps, this method is already available there, so we
don't have to implement this ourselves. Its just making it available
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