user mapping

[bsr060893]

what is the difference between user mapping service and user mapping amendment service?
when to use them differently?

[arunpatidar]

Service Users and Mappings

Sling 7 offers a Service User Mapping service, which allows to configure a bundle-to-user mapping and two corresponding API methods: SlingRepository.loginService() and ResourceResolverFactory.getServiceResourceResolver() which return a session/resource resolver with the privileges of a configured user only. These methods have the following characteristics:

They allow mapping services to users
They make it possinle to define sub-service users
The central configuration point is: org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl
service-id = service-name [ “:” subservice-name ]

service-id is mapped to a resource resolver and/or JCR repository user ID for authentication
service-name is the symbolic name of the bundle providing the service

Mapping amendments for service user mapper
If you are still not using service user mapping amendments – you are doing a big mistake! This feature allows you to define mappings in a modular way. To use it, create config for factory org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl.amended. 

[bsr060893]

Thanks for the response , but could you explain what this sentence means "This feature allows you to define mappings in a modular way."

[arunpatidar]

Please check -

https://issues.apache.org/jira/browse/SLING-6772

https://issues.apache.org/jira/browse/SLING-3578

More details you can find at: https://sling.apache.org/documentation/the-sling-engine/service-authentication.html

[ArpitVarshney · Accepted solution]

Hi @bsr060893 

Please go through this blog http://www.sgaemsolutions.com/2017/10/sling-service-authentication-in-aem-63.html

Apache Sling Service User Mapper Amendment

• This configuration is used when you want to have an individual configuration for a particular project.
• If there are more than one configurations correspond to a particular bundle, based on the ranking, service can be picked. (The highest the number will be having highest ranking).

Regards,

Arpit