[jira] [Assigned] (ESCIMO-2) Generalize Resources Service classes

["Kiran Ayyagari (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ESCIMO-2?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kiran Ayyagari reassigned ESCIMO-2:
-----------------------------------

    Assignee: Kiran Ayyagari

> Generalize Resources Service classes
> ------------------------------------
>
>                 Key: ESCIMO-2
>                 URL: https://issues.apache.org/jira/browse/ESCIMO-2
>             Project: eSCIMo 
>          Issue Type: Improvement
>            Reporter: Patrick Radtke
>            Assignee: Kiran Ayyagari
>
> As a user of the eSCIMo library
> I want to easily be able to expose new resources
> without writing boiler plate code
> The SCIM specification allows for additional resources to be defined - either within the realm of the spec, or by the service provider.
>     In an ideal world, I would be able to add these additional resources by extending ServerResource and implementing a resource specific provider interface, and the rest of the Server implementation would be generic enough to "just work". Currently that is not the case, and the server implementation assumes User and Group resources.
>     I think it may make sense to generalize ProviderService so that implementation would be both Resource and Backend specific. As example, implementations could be like:
>      LdapUserResourceProvider - a User resource that is provide from ldap
>      XmlGroupResourceProvider - a group resource that is provided from an xml file
>      JpaPizzaResourceProvider - a Pizza resource that comes from a DB
>     Then  at the RESTful server level, instead of defining resource specific endpoints like GroupService and UserService, a generic ResourceService could determine the corresponding resource specific ProviderService implementation based on the URL. For example, if ResourceService saw /Users/123 it could user the string "Users" to look up in a factory, or a map the correct ProviderService for UserResources.



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