public synchronized void revoke()

in extensions/torque/src/java/org/apache/turbine/services/security/torque/TorqueSecurityService.java [239:287]
49 lines of code
8 McCabe index (conditional complexity)

    public synchronized void revoke(User user, Group group, Role role)
        throws DataBackendException, UnknownEntityException
    {
        boolean userExists = false;
        boolean groupExists = false;
        boolean roleExists = false;
        try
        {
            lockExclusive();
            userExists = TurbineSecurity.accountExists(user);
            groupExists = checkExists(group);
            roleExists = checkExists(role);
            if (userExists && groupExists && roleExists)
            {
                Criteria criteria = new Criteria();
                criteria.add(TurbineUserGroupRolePeer.USER_ID,
                             ((Persistent) user).getPrimaryKey());
                criteria.add(TurbineUserGroupRolePeer.GROUP_ID,
                             ((Persistent) group).getPrimaryKey());
                criteria.add(TurbineUserGroupRolePeer.ROLE_ID,
                             ((Persistent) role).getPrimaryKey());
                TurbineUserGroupRolePeer.doDelete(criteria);
                return;
            }
        }
        catch (Exception e)
        {
            throw new DataBackendException("revoke(User,Role,Group) failed", e);
        }
        finally
        {
            unlockExclusive();
        }
        if (!userExists)
        {
            throw new UnknownEntityException("Unknown user '"
                                             + user.getName() + "'");
        }
        if (!groupExists)
        {
            throw new UnknownEntityException("Unknown group '"
                                             + group.getName() + "'");
        }
        if (!roleExists)
        {
            throw new UnknownEntityException("Unknown role '"
                                             + role.getName() + "'");
        }
    }