class.ilAssQuestionProcessLockerFactory.php

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<?php

class ilAssQuestionProcessLockerFactory
{
    protected $settings;

    protected $db;

    protected $question_id;

    protected $userId;

    public function __construct(ilSetting $settings, ilDBInterface $db)
    {
        $this->settings = $settings;
        $this->db = $db;

        $this->question_id = null;
        $this->userId = null;
    }

    public function setQuestionId($questionId): void
    {
        $this->question_id = $questionId;
    }

    public function getQuestionId(): ?int
    {
        return $this->question_id;
    }

    public function setUserId($userId): void
    {
        $this->userId = $userId;
    }

    public function getUserId(): ?int
    {
        return $this->userId;
    }

    private function getLockModeSettingValue(): ?string
    {
        return $this->settings->get('ass_process_lock_mode', ilObjTestFolder::ASS_PROC_LOCK_MODE_NONE);
    }

    public function getLocker()
    {
        switch ($this->getLockModeSettingValue()) {
            case ilObjTestFolder::ASS_PROC_LOCK_MODE_NONE:

                $locker = new ilAssQuestionProcessLockerNone();
                break;

            case ilObjTestFolder::ASS_PROC_LOCK_MODE_FILE:
                $storage = new ilAssQuestionProcessLockFileStorage($this->getQuestionId(), $this->getUserId());
                $storage->create();

                $locker = new ilAssQuestionProcessLockerFile($storage);
                break;

            case ilObjTestFolder::ASS_PROC_LOCK_MODE_DB:

                $locker = new ilAssQuestionProcessLockerDb($this->db);
                break;
        }

        return $locker;
    }
}