class.ilForumNotificationCache.php

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<?php
/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilForumNotificationCache
{
    private $storage = array();

    public function fetch(string $id)
    {
        if (false === $this->exists($id)) {
            throw new InvalidArgumentException('Storage id doesn\'t exist');
        }

        return $this->storage[$id];
    }

    public function store(string $key, $data)
    {
        $this->storage[$key] = $data;
    }

    public function exists(string $id)
    {
        return array_key_exists($id, $this->storage);
    }

    public function createKeyByValues(array $values)
    {
        $cacheKey = md5(implode('|', $values));

        return $cacheKey;
    }
}