| | 39 | In this revision there will be two persistent objects in security layer - Users and Groups. Every User will be able to subscribe to zero or more Groups, and every Group will be able to contain zero or more Users. |
| | 40 | |
| | 41 | The security layer in that revision will be represented by two services. One for managing the users of the system and one for managing the groups. The permission logic will be added at later revision when there are books and comments. |
| | 42 | |
| | 43 | * The !UserService: |
| | 44 | * Will have method for log in an User. The method will check if the User exists in the database, if the password of the user is right and only then will log in the user by it's user name and password and return the persisted entry. In the other cases it will throw special !SecurityException with the right message. |
| | 45 | * Will have method for registering of a new user. The method will receive as parameter an not persisted User object if user with the same user name already exists in the database will throw !SecurityException with the right message. |
| | 46 | * Will have method for deleting an user account, it will take the responsibility to delete all the user subscriptions to books, comments, groups or leave them as anonymous. |
| | 47 | * Will have method that provides all the groups an user is subscribed to. |
| | 48 | * Will have method that saves the changes an user has made to it's profile. |
| | 49 | |
| | 50 | * The !GroupService: |
| | 51 | * Will have method for creating of a new group by given name. If a group with such name already exists in the DB will throw !SecurityException with appropriate message |
| | 52 | * Will have method for adding an user to a group. |
| | 53 | * Will have method that retrieves all the users belonging to a group. |
| | 54 | * Will have method that deletes an existing group from the database. |
| | 55 | |
