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Kipe Expression

Kipe can be pronounced, in French, as "qui peut" which means: who can.

It is an authorization evaluation mechanism built on top of spring security. Kipe is there to ease business facing authorization checks.

It will allow you to use a new can('action', #element) expression in @PreAuthorize and @PostAuthorize:

@PreAuthorize("can('update', #dummy)")
public void update(KipeDummy dummy) {
  // ...
}

Those expressions will then be evaluated in dedicated AccessChecker. To do so, you'll have to define spring beans (@Component or @Service) implementing AccessChecker<T>:

@Component
class KipeDummyAccessChecker implements AccessChecker<KipeDummy> {

  @Override
  public boolean can(AccessContext<KipeDummy> access) {
    // TODO: your business authorization logic
  }
}

Kipe's only job is to call the AccessChecker for your object class.