class.ilGlobalCacheConfigStoredObjective.php

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<?php

use ILIAS\Setup;

class ilGlobalCacheConfigStoredObjective implements Setup\Objective
{
    protected \ilGlobalCacheSettings $settings;

    public function __construct(
        \ilGlobalCacheSettings $settings
    ) {
        $this->settings = $settings;
    }

    public function getHash(): string
    {
        return hash("sha256", self::class);
    }

    public function getLabel(): string
    {
        return "Store configuration of Services/GlobalCache";
    }

    public function isNotable(): bool
    {
        return false;
    }

    public function getPreconditions(Setup\Environment $environment): array
    {
        return [
            new ilIniFilesLoadedObjective()
        ];
    }

    public function achieve(Setup\Environment $environment): Setup\Environment
    {
        $client_ini = $environment->getResource(Setup\Environment::RESOURCE_CLIENT_INI);
        $db = $environment->getResource(Setup\Environment::RESOURCE_DATABASE);
        $db->manipulate("TRUNCATE TABLE il_gc_memcache_server");

        $memcached_nodes = $this->settings->getMemcachedNodes();
        foreach ($memcached_nodes as $node) {
            $node->create();
        }

        $return = $this->settings->writeToIniFile($client_ini);

        if (!$client_ini->write() || !$return) {
            throw new Setup\UnachievableException("Could not write client.ini.php");
        }

        return $environment;
    }

    public function isApplicable(Setup\Environment $environment): bool
    {
        // The effort to check the whole ini file is too big here.
        return true;
    }
}