SystemCache.php

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<?php
namespace Elgg\Cache;

class SystemCache {
    private $CONFIG;

    public function __construct() {
        global $CONFIG;
        $this->CONFIG = $CONFIG;
    }

    function get() {
        
    
        static $FILE_PATH_CACHE;
    
        if (!$FILE_PATH_CACHE) {
            $FILE_PATH_CACHE = new \ElggFileCache($this->CONFIG->dataroot . 'system_cache/');
        }
    
        return $FILE_PATH_CACHE;
    }
    
    function reset() {
        $cache = elgg_get_system_cache();
        $cache->clear();
    }
    
    function save($type, $data) {
        
    
        if ($this->CONFIG->system_cache_enabled) {
            $cache = elgg_get_system_cache();
            return $cache->save($type, $data);
        }
    
        return false;
    }
    
    function load($type) {
        
    
        if ($this->CONFIG->system_cache_enabled) {
            $cache = elgg_get_system_cache();
            $cached_data = $cache->load($type);
    
            if ($cached_data) {
                return $cached_data;
            }
        }
    
        return null;
    }
    
    function enable() {
        
    
        _elgg_services()->datalist->set('system_cache_enabled', 1);
        $this->CONFIG->system_cache_enabled = 1;
        elgg_reset_system_cache();
    }
    
    function disable() {
        
    
        _elgg_services()->datalist->set('system_cache_enabled', 0);
        $this->CONFIG->system_cache_enabled = 0;
        elgg_reset_system_cache();
    }
    
    function loadAll() {
        
    
        $this->CONFIG->system_cache_loaded = false;
    
        $this->CONFIG->views = new \stdClass();
        $data = elgg_load_system_cache('view_locations');
        if (!is_string($data)) {
            return;
        }
        $this->CONFIG->views->locations = unserialize($data);
        
        $data = elgg_load_system_cache('view_types');
        if (!is_string($data)) {
            return;
        }
        $this->CONFIG->view_types = unserialize($data);
    
        $this->CONFIG->system_cache_loaded = true;
    }
    
    function init() {
        // cache system data if enabled and not loaded
        if ($this->CONFIG->system_cache_enabled && !$this->CONFIG->system_cache_loaded) {
            elgg_save_system_cache('view_locations', serialize($this->CONFIG->views->locations));
            elgg_save_system_cache('view_types', serialize($this->CONFIG->view_types));
        }
    
        if ($this->CONFIG->system_cache_enabled && !$this->CONFIG->i18n_loaded_from_cache) {
            _elgg_services()->translator->reloadAllTranslations();
            foreach ($this->CONFIG->translations as $lang => $map) {
                elgg_save_system_cache("$lang.lang", serialize($map));
            }
        }
    }
}