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94 lines (83 loc) 路 1.85 KB
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<?php
namespace Appwrite\Storage;
use Exception;
class Storage
{
/**
* Devices.
*
* List of all available storage devices
*
* @var array
*/
public static $devices = array();
/**
* Add Device.
*
* Add device by name
*
* @param string $name
* @param Device $device
*
* @throws Exception
*/
public static function addDevice($name, Device $device)
{
if (array_key_exists($name, self::$devices)) {
throw new Exception('The device "'.$name.'" is already listed');
}
self::$devices[$name] = $device;
}
/**
* Get Device.
*
* Get device by name
*
* @param string $name
*
* @return Device
*
* @throws Exception
*/
public static function getDevice($name)
{
if (!array_key_exists($name, self::$devices)) {
throw new Exception('The device "'.$name.'" is not listed');
}
return self::$devices[$name];
}
/**
* Exists.
*
* Checks if given storage name is registered or not
*
* @param string $name
*
* @return bool
*/
public static function exists($name)
{
return (bool) array_key_exists($name, self::$devices);
}
/**
* Human readable data size format from bytes input.
*
* As published on https://gist.github.com/liunian/9338301 (first comment)
*
* @param int $bytes
* @param int $decimals
*
* @return string
*/
static public function human($bytes, $decimals = 2)
{
$units = array('B','kB','MB','GB','TB','PB','EB','ZB','YB');
$step = 1024;
$i = 0;
while (($bytes / $step) > 0.9) {
$bytes = $bytes / $step;
++$i;
}
return round($bytes, $decimals).$units[$i];
}
}