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FileSystemHandler.php
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executable file
·127 lines (113 loc) · 3.27 KB
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<?php
namespace MaplePHP\Cache\Handlers;
use Psr\Cache\CacheItemInterface;
use MaplePHP\Cache\Exceptions\CacheException;
use MaplePHP\Cache\CachePoolAbstract;
class FileSystemHandler extends CachePoolAbstract
{
private string $cacheDirectory;
/**
* Init the File system handler
* @param string $cacheDirectory
*/
public function __construct(string $cacheDirectory)
{
$this->cacheDirectory = rtrim($cacheDirectory, "/");
}
/**
* This will Pass on cache content to CacheAbstract::getItem
* @param CacheItemInterface $item
* @return void
*/
protected function setItem(CacheItemInterface $item): void
{
$key = $item->getKey();
$path = $this->getCacheFilePath($key);
if (is_file($path)) {
if (!is_readable($path)) {
throw new CacheException("The cache file ($path) is not readable!", 1);
}
$data = file_get_contents($path);
if (($data = unserialize($data)) && isset($data['expiresAfter'])) {
$item->set($data['value']);
$item->expiresAfter((int)$data['expiresAfter']);
}
}
}
/**
* Get all set keys
* @return array
*/
public function getAllKeys(): array
{
$new = [];
$files = glob("$this->cacheDirectory/*.cache");
foreach ($files as $file) {
$file = basename($file);
$exp = explode(".", $file);
array_pop($exp);
$new[] = implode(".", $exp);
}
return $new;
}
/**
* Clear and remove all cache items and data
* @return bool
*/
protected function setClear(): bool
{
$files = glob("$this->cacheDirectory/*.cache");
foreach ($files as $file) {
if (is_file($file) && is_writable($file)) {
unlink($file);
} else {
return false;
}
}
return true;
}
/**
* Clear and remove cache item and data
* @param string $key
* @return bool
*/
protected function setDelete($key): bool
{
$path = $this->getCacheFilePath($key);
if (is_file($path) && is_writable($path)) {
unlink($path);
return true;
}
return false;
}
/**
* Create cache
* @param CacheItemInterface $item
* @return bool
*/
protected function setSave(CacheItemInterface $item): bool
{
if (!is_dir($this->cacheDirectory)) {
throw new CacheException("The cache directory is not a directory: $this->cacheDirectory", 1);
}
if (!is_writeable($this->cacheDirectory)) {
throw new CacheException("The cache filesystem directory is not writable!", 1);
}
$data = serialize([
"value" => $item->get(),
"expiresAfter" => $this->setExpiration($item)
]);
$path = $this->getCacheFilePath($item->getKey());
$size = file_put_contents($path, $data);
return ($size !== false);
}
/**
* Get cache file path
* @param string $key
* @return string
*/
protected function getCacheFilePath(string $key): string
{
return "$this->cacheDirectory/$key.cache";
}
}