ObjectCache.php

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<?php
namespace Ubiquity\cache\system;
 
use Ubiquity\utils\base\UFileSystem;
use Ubiquity\exceptions\CacheException;
use Ubiquity\cache\CacheFile;
use Ubiquity\utils\base\UArray;
 
class ObjectCache extends AbstractDataCache {
 
    private $_fileMode;
 
    private $_cacheDirectory;
 
    public function __construct($root, $postfix = "", $cacheParams = []) {
        parent::__construct($root, $postfix);
        $this->_cacheDirectory = \basename($root);
        $this->_fileMode = (isset($cacheParams["fileMode"])) ? $cacheParams["fileMode"] : 0755;
        if (! is_dir($root)) {
            \mkdir($root, $this->_fileMode, true);
        }
    }
 
    public function exists($key) {
        return file_exists($this->_getPath($key));
    }
 
    public function store($key, $content, $tag = null) {
        $path = $this->_getPath($key);
        $dir = pathinfo($path, PATHINFO_DIRNAME);
        if (UFileSystem::safeMkdir($dir)) {
            $content = "<?php\n" . UArray::asPhpClass($content, $this->getClassname($key), $this->getNamespace($key), true);
            if (@\file_put_contents($path, $content, LOCK_EX) === false) {
                throw new CacheException("Unable to write cache file: {$path}");
            }
            if (@\chmod($path, $this->_fileMode) === false) {
                throw new CacheException("Unable to set permissions of cache file: {$path}");
            }
        } else {
            throw new CacheException("Unable to create folder : {$dir}");
        }
    }
 
    protected function getCompleteClassname($key) {
        $key = \str_replace([
            '.',
            '/'
        ], [
            '_',
            '\\'
        ], $key);
        return "\\{$this->_cacheDirectory}\\{$key}_cache";
    }
 
    protected function getNamespace($key) {
        $key = \str_replace([
            '.',
            '/'
        ], [
            '_',
            '\\'
        ], $key);
        return $this->_cacheDirectory . '\\' . \substr($key, 0, \strrpos($key, '\\'));
    }
 
    protected function getClassname($key) {
        $key = \str_replace([
            '.',
            '/'
        ], [
            '_',
            '\\'
        ], $key);
        return \substr($key, \strrpos($key, '\\') + 1) . '_cache';
    }
 
    public function fetch($key) {
        $class = $this->getCompleteClassname($key);
        return $class::$value;
    }
 
    public function file_get_contents($key) {
        return \file_get_contents($this->_getPath($key));
    }
 
    public function getTimestamp($key) {
        return \filemtime($this->_getPath($key));
    }
 
    private function _getPath($key) {
        $key = \str_replace('.', '_', $key);
        return $this->_root . $key . '_cache.php';
    }
 
    public function remove($key) {
        $file = $this->_getPath($key);
        if (\file_exists($file))
            return \unlink($file);
        return false;
    }
 
    public function clear($matches = "") {
        $files = glob($this->_root . $matches . '*');
        foreach ($files as $file) {
            if (\is_file($file))
                \unlink($file);
        }
    }
 
    public function getCacheFiles($type) {
        return CacheFile::initFromFiles($this->_root . $type, \ucfirst($type), function ($file) {
            $path = UFileSystem::relativePath(dirname($file), $this->_root);
            $file = \basename($file);
            return $path . \DS . substr($file, 0, strpos($file, $this->postfix . '.php'));
        });
    }
 
    public function clearCache($type) {
        CacheFile::delete($this->_root . \strtolower($type));
    }
 
    public function getCacheInfo() {
        $result = parent::getCacheInfo();
        $result .= "\nRoot cache directory is <b>" . UFileSystem::cleanPathname($this->_root) . "</b>.";
        return $result;
    }
 
    public function getEntryKey($key) {
        return UFileSystem::cleanFilePathname($this->_getPath($key));
    }
 
    public function setRoot($root) {
        $this->_root = \rtrim($root, \DS) . \DS;
    }
}