public function processAcls(array &$configuration)
    {
        if (!isset($configuration['acls'])) {
            return;
        }
        $newRolesConfiguration = isset($configuration['roles']) ? $configuration['roles'] : array();
        foreach ($configuration['acls'] as $roleIdentifier => $aclConfiguration) {
            $roleIdentifier = $this->expandRoleIdentifier($roleIdentifier);
            if (!isset($newRolesConfiguration[$roleIdentifier])) {
                $newRolesConfiguration[$roleIdentifier] = array();
            }
            if (!isset($newRolesConfiguration[$roleIdentifier]['privileges'])) {
                $newRolesConfiguration[$roleIdentifier]['privileges'] = array();
            }
            foreach ($aclConfiguration as $resourceType => $permissions) {
                if ($resourceType !== 'methods' && $resourceType !== 'entities') {
                    $this->showWarning('Resource type "' . $resourceType . '" is not supported...');
                    continue;
                }
                foreach ($permissions as $resourceName => $permission) {
                    $newRolesConfiguration[$roleIdentifier]['privileges'][] = array('privilegeTarget' => $resourceName, 'permission' => $permission);
                }
            }
        }
        unset($configuration['acls']);
        $configuration['roles'] = $newRolesConfiguration;
    }