friendica-github/src/Core/StorageManager.php

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<?php
namespace Friendica\Core;
use Friendica\Core\Config;
/**
* @brief Manage storage backends
*
* Core code uses this class to get and set current storage backend class.
* Addons use this class to register and unregister additional backends.
*/
class StorageManager
{
private static $default_backends = [
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'Filesystem' => \Friendica\Model\Storage\Filesystem::class,
'Database' => \Friendica\Model\Storage\Database::class,
];
private static $backends = [];
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private static function setup()
{
if (count(self::$backends)==0) {
self::$backends = Config::get('storage', 'backends', self::$default_backends);
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}
}
/**
* @brief Return current storage backend class
* @return string
*/
public static function getBackend()
{
return Config::get('storage', 'class', '');
}
/**
* @brief Return storage backend class by registered name
*
* @param string $name Backend name
* @return string Empty if no backend registered at $name exists
*/
public static function getByName($name)
{
self::setup();
return defaults(self::$backends, $name, '');
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}
/**
* @brief Set current storage backend class
*
* @param string $class Backend class name
*/
public static function setBackend($class)
{
/// @todo Check that $class implements IStorage
Config::set('storage', 'class', $class);
}
/**
* @brief Get registered backends
*
* @return array
*/
public static function listBackends()
{
self::setup();
return self::$backends;
}
/**
* @brief Register a storage backend class
*
* @param string $name User readable backend name
* @param string $class Backend class name
*/
public static function register($name, $class)
{
/// @todo Check that $class implements IStorage
self::setup();
self::$backends[$name] = $class;
Config::set('storage', 'backends', self::$backends);
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}
/**
* @brief Unregister a storage backend class
*
* @param string $name User readable backend name
*/
public static function unregister($class)
{
self::setup();
unset(self::$backends[$name]);
Config::set('storage', 'backends', self::$backends);
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}
}