VvebOIDC/system/cache.php

107 lines
2.7 KiB
PHP

<?php
/**
* Vvveb
*
* Copyright (C) 2022 Ziadin Givan
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Vvveb\System;
class Cache {
private $driver;
private $expire;
private $buffer;
public static function getInstance() {
static $inst = null;
if ($inst === null) {
$driver = \Vvveb\config('app.cache.driver', 'file');
$inst = new self($driver);
}
return $inst;
}
public function __construct($driver, $expire = 3600) {
$class = '\\Vvveb\\System\\Cache\\' . $driver;
$this->expire = $expire;
if (class_exists($class)) {
$options = \Vvveb\config(APP . '.cache', []);
$this->driver = new $class($options);
} else {
throw new \Exception("Error loading cache driver '$driver'!");
}
return $this->driver;
}
public function get($namespace, $key) {
return $this->buffer[$namespace][$key] ??
$this->buffer[$namespace][$key] = $this->driver->get($namespace, $key);
}
public function set($namespace, $key, $value, $expire = 0) {
$expire = $expire ?? $this->expire;
if (isset($this->buffer[$namespace][$key])) {
$this->buffer[$namespace][$key] = $value;
}
return $this->driver->set($namespace, $key, $value, $expire);
}
// cache the results of the callback retrive if exists or save if expired
public function cache($namespace, $key, $callback, $expire = 0) {
if (($value = $this->driver->get($namespace, $key)) !== null) {
return $value;
}
$value = $callback();
$expire = $expire ?? $this->expire;
if ($this->driver->set($namespace, $key, $value, $expire)) {
}
return $value;
}
public function getMulti($namespace, $key, $serverKey = false) {
return $this->driver->getMulti($namespace, $key, $serverKey);
}
public function setMulti($namespace, $items, $expire = 0, $serverKey = false) {
$expire = $expire ? $expire : $this->expire;
return $this->driver->setMulti($namespace, $items, $expire, $serverKey);
}
public function delete($namespace, $key = '') {
return $this->driver->delete($namespace, $key);
}
public function purge($namespace = '') {
return $this->driver->delete($namespace);
}
}