Proyectos de Subversion LeadersLinked - Backend

<?php

declare(strict_types=1);

namespace LeadersLinked\Cache;

class CacheImpl implements CacheInterface
{
    /**
     * 
     * @var \Memcached|\Memcache
     */
    private $memcached;

    
    
    /**
     * 
     * @var int
     */
    private $ttl;
    
    
    /**
     *
     * @var string
     */
    private $host;
    
    
    /**
     *
     * @var int
     */
    private $port;
    
    
    
    
    /**
     *
     * @param Array $config
     */
    public function __construct($config)
    {
        $this->ttl    = intval($config['leaderslinked.memcache.ttl'], 10);
        $this->host   = strval($config['leaderslinked.memcache.host']);
        $this->port   = intval($config['leaderslinked.memcache.port'], 10);
        
        
        if(class_exists(\Memcached::class)) {
            $this->memcached = new \Memcached();
            $this->memcached->addServer($this->host, $this->port);
        } else  if(class_exists(\Memcache::class)) {
            $this->memcached = new \Memcache();
            $this->memcached->addserver($this->host, $this->port);
        }


    }
    
    /**
     * 
     * @param string $key
     * @param mixed $value
     */
    public function setItem($key, $value)
    {
        if($this->memcached) {
            $this->memcached->add($key, $value, $this->ttl);
        } else {
            $filename = $this->getFilename($key);
            return file_put_contents($filename, serialize($value));
        }
    }
    
    /**
     * 
     * @param string $key
     * @return boolean
     */
    public function touch($key)
    {
        if($this->memcached) {
            return $this->memcached->touch($key, $this->ttl);
        } else {
            $filename = $this->getFilename($key);
            if(file_exists($filename)) {
                return touch($filename);
            } else {
                return true;
            }
        }
    }
    
    
    /**
     *
     * @param string $key
     * @return boolean
     */
    public function removeItem($key)
    {
        if($this->memcached) {
            return $this->memcached->delete($key);
        } else {
            $filename = $this->getFilename($key);
            if(file_exists($filename)) {
                return unlink($filename);
            } else {
                return true;
            }
        }
    }   
    
    
    
    /**
     *
     * @param string $key
     * @return boolean
     */
    public function hasItem($key)
    {
        if($this->memcached) {
        
            $value = $this->memcached->get($key);
            if($value === \Memcached::RES_NOTFOUND) {
                return false;
            } else {
                return empty($value) ? false : true;
            }
        } else {
            $filename = $this->getFilename($key);
            return file_exists($filename);
        }
            
    }
    
    
    /**
     *
     * @param string $key
     * @return mixed
     */
    public function getItem($key)
    {
        if($this->memcached) {
        
            $value = $this->memcached->get($key);
            if($value === \Memcached::RES_NOTFOUND) {
                return false; 
            } else {
                return $value;
            }
        } else {
            $filename = $this->getFilename($key);
            if(file_exists($filename)) {
                return unserialize(file_get_contents($filename)); 
            } else {
                return null;
            }
            
            
        }
    }
    
    /**
     * 
     * @param string $key
     * @return string
     */
    private function getFilename($key) 
    {
        $filepath = 'data' . DIRECTORY_SEPARATOR . 'cache';
        if(!file_exists($filepath)) {
            @mkdir($filepath, 0755);
        }
        
        return $filepath . DIRECTORY_SEPARATOR . $key . '.json';
    }

}