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<?php
/**
* This file is part of the PHPExiftool package.
*
* (c) Alchemy <support@alchemy.fr>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPExiftool;
use Doctrine\Common\Cache\ArrayCache;
use PHPExiftool\RDFParser;
use PHPExiftool\FileEntity;
use PHPExiftool\Driver\Value\ValueInterface;
use PHPExiftool\Driver\Metadata\MetadataBag;
/**
*
*
* @author Romain Neutron - imprec@gmail.com
* @license http://opensource.org/licenses/MIT MIT
*/
class FileEntity implements \IteratorAggregate
{
/**
*
* @var \DOMDocument
*/
private $dom;
/**
*
* @var \SplFileInfo
*/
private $file;
/**
*
* @var ArrayCache
*/
private $cache;
/**
*
* @var RDFParser
*/
private $parser;
/**
* Construct a new FileEntity
*
* @param string $file
* @param \DOMDocument $dom
* @param RDFParser $parser
* @return FileEntity
*/
public function __construct($file, \DOMDocument $dom, RDFParser $parser)
{
$this->dom = $dom;
$this->file = $file;
$this->cache = new ArrayCache();
$this->parser = $parser->open($dom->saveXML());
return $this;
}
public function getIterator()
{
return $this->getMetadatas()->getIterator();
}
/**
*
* @var string
*/
public function getFile()
{
return $this->file;
}
/**
*
* @return MetadataBag
*/
public function getMetadatas()
{
$key = realpath($this->file);
if ($this->cache->contains($key)) {
return $this->cache->fetch($key);
}
$metadatas = $this->parser->ParseMetadatas();
$this->cache->save($key, $metadatas);
return $metadatas;
}
/**
* Execute a user defined query to retrieve metadata
*
* @param string $query
*
* @return ValueInterface
*/
public function executeQuery($query)
{
return $this->parser->Query($query);
}
}
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