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interface AuthCheckerAuthEnforcer {
	/**
     * ChecksEnforces ifauthorization afor userthe isspecified allowed{@link toPrincipal} performfor athe setspecified of{@link actionsAction} on an entity the specified {@link EntityId}.
     *
     * @param Principalprincipal the Principalprincipal that performs the actions. This could be a user, group or a role
     * @param entity the entity on which an action is being performed
     * @param action the action being performed
     * @throws AuthorizationException if the Principalprincipal is not authorized to perform action on the entity
     */
	void checkAuthorizedenforce(Principal Principal, Entity entity, Action action) throws AuthorizationException;
}

interface Authorizer extends AuthCheckerAuthEnforcer {
	/**
     * Grants a principal authorization to perform a set of actions on an entity.
     *
     * @param entity the entity on which an action is being performed
     * @param principal the Principal that performs the actions. This could be a user, group or a role
     * @param actions the set of actions to grant
     */
    void grant(EntityId entity, Principal principal, Set<Action> actions);

	/**
     * Grants a Principal authorization to perform all actions on an entity.
     *
     * @param entity the entity on which an action is being performed
     * @param principal the Principal that performs the actions. This could be a user, group or a role
     */
    void grant(EntityId entity, Principal principal, Set<Action> actions);
	/**
     * Revokes a principal's authorization to perform a set of actions on an entity.
     *
     * @param entity the entity on which an action is being performed
     * @param principal the principal that performs the actions. This could be a user, group or a role
     * @param actions the set of actions to revoke permissions on
     */
    void revoke(EntityId entity, Principal principal, Set<Action> actions);

	/**
     * Revokes a principal's authorization to perform any action on an entity.
     *
     * @param entity the entity on which an action is being performed
     * @param principal the principal that performs the actions. This could be a user, group or a role
     */
    void revoke(EntityId entity, Principal Principal);

    /**
     * Revokes all principals' authorization to perform any action on an entity.
     *
     * @param entity the entity on which an action is being performed
     */
    void revoke(EntityId entity);
}