ZwiiCMS/core/class/sleekDB/Classes/CacheHandler.php

129 lines
2.6 KiB
PHP

<?php
namespace SleekDB\Classes;
use SleekDB\Cache;
use SleekDB\Exceptions\IOException;
use SleekDB\QueryBuilder;
/**
* Class CacheHandler
* Bridge between Query and Cache
*/
class CacheHandler
{
/**
* @var Cache
*/
protected $cache;
protected $cacheTokenArray;
protected $regenerateCache;
protected $useCache;
/**
* CacheHandler constructor.
* @param string $storePath
* @param QueryBuilder $queryBuilder
*/
public function __construct(string $storePath, QueryBuilder $queryBuilder)
{
$this->cacheTokenArray = $queryBuilder->_getCacheTokenArray();
$queryBuilderProperties = $queryBuilder->_getConditionProperties();
$this->useCache = $queryBuilderProperties["useCache"];
$this->regenerateCache = $queryBuilderProperties["regenerateCache"];
$this->cache = new Cache($storePath, $this->_getCacheTokenArray(), $queryBuilderProperties["cacheLifetime"]);
}
/**
* @return Cache
*/
public function getCache(): Cache
{
return $this->cache;
}
/**
* Get results from cache
* @return array|null
* @throws IOException
*/
public function getCacheContent($getOneDocument)
{
if($this->getUseCache() !== true){
return null;
}
$this->updateCacheTokenArray(['oneDocument' => $getOneDocument]);
if($this->regenerateCache === true) {
$this->getCache()->delete();
}
$cacheResults = $this->getCache()->get();
if(is_array($cacheResults)) {
return $cacheResults;
}
return null;
}
/**
* Add content to cache
* @param array $results
* @throws IOException
*/
public function setCacheContent(array $results)
{
if($this->getUseCache() === true){
$this->getCache()->set($results);
}
}
/**
* Delete all cache files that have no lifetime.
* @return bool
*/
public function deleteAllWithNoLifetime(): bool
{
return $this->getCache()->deleteAllWithNoLifetime();
}
/**
* Returns a reference to the array used for cache token generation
* @return array
*/
public function &_getCacheTokenArray(): array
{
return $this->cacheTokenArray;
}
/**
* @param array $tokenUpdate
*/
private function updateCacheTokenArray(array $tokenUpdate)
{
if(empty($tokenUpdate)) {
return;
}
$cacheTokenArray = $this->_getCacheTokenArray();
foreach ($tokenUpdate as $key => $value){
$cacheTokenArray[$key] = $value;
}
$this->cacheTokenArray = $cacheTokenArray;
}
/**
* Status if cache is used or not
* @return bool
*/
private function getUseCache(): bool
{
return $this->useCache;
}
}