NotificationTarget::getAddressesByTarget PHP Method

    function getAddressesByTarget($data, $options = array())
    {
        //Look for all targets whose type is Notification::USER_TYPE
        switch ($data['type']) {
            //Notifications for one people
            case Notification::USER_TYPE:
                switch ($data['items_id']) {
                    //Send to glpi's global admin (as defined in the mailing configuration)
                    case Notification::GLOBAL_ADMINISTRATOR:
                        $this->getAdminAddress();
                        break;
                        //Send to the entity's admninistrator
                    //Send to the entity's admninistrator
                    case Notification::ENTITY_ADMINISTRATOR:
                        $this->getEntityAdminAddress();
                        break;
                        //Technician in charge of the ticket
                    //Technician in charge of the ticket
                    case Notification::ITEM_TECH_IN_CHARGE:
                        $this->getItemTechnicianInChargeAddress();
                        break;
                        //Group of technician in charge of the ticket
                    //Group of technician in charge of the ticket
                    case Notification::ITEM_TECH_GROUP_IN_CHARGE:
                        $this->getItemGroupTechInChargeAddress();
                        break;
                        //User who's owner of the material
                    //User who's owner of the material
                    case Notification::ITEM_USER:
                        $this->getItemOwnerAddress();
                        break;
                        //Send to the author of the ticket
                    //Send to the author of the ticket
                    case Notification::AUTHOR:
                        $this->getItemAuthorAddress();
                        break;
                    default:
                        //Maybe a target specific to a type
                        $this->getSpecificTargets($data, $options);
                }
                break;
                //Send to all the users of a group
            //Send to all the users of a group
            case Notification::GROUP_TYPE:
                $this->getAddressesByGroup(0, $data['items_id']);
                break;
                //Send to all the users of a group
            //Send to all the users of a group
            case Notification::SUPERVISOR_GROUP_TYPE:
                $this->getAddressesByGroup(1, $data['items_id']);
                break;
                //Send to all the users of a profile
            //Send to all the users of a profile
            case Notification::PROFILE_TYPE:
                $this->getUsersAddressesByProfile($data['items_id']);
                break;
            default:
                //Maybe a target specific to a type
                $this->getSpecificTargets($data, $options);
        }
        // action for target from plugin
        $this->data = $data;
        Plugin::doHook('item_action_targets', $this);
    }