Use of protected class properties in FilesystemLoader

[petrjaros]

No description provided.

[lsmith77]

can you explain the use case for when you require access to these properties?

[petrjaros]

I have created a data loader class which is changing the name of source image to be cached which different name (there are some sensitive data in the image name - this data belong to the image, but I don't want to show the data to the users). So I have created class which extends FileSystemLoader. I need access to rootPath property in my class.
So, the only reason for this pull request is, that I would like to access properties of FileSystemLoader from extending class.
There is my code:

<?php
namespace Dmc\ConfiguratorBundle\Imagine\Data\Loader;

use Liip\ImagineBundle\Imagine\Data\Loader\FileSystemLoader;
use Symfony\Component\Finder\Finder;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class CarDataLoader extends FileSystemLoader
{    
    public function find($path)
    {
        $path = $this->carModelSourcePath($path);
        return parent::find($path);
    }

    private function carModelSourcePath($path)
    {
        $dir = dirname($path);
        $filename = basename($path);
        $parts = explode('-', $filename, 3);

        $finder = new Finder();
        $finder->files()->in($this->rootPath . '/' . $dir)->name($parts[0] . '-' . $parts[1] . '-' . '*' . '-' . substr($parts[2], 0, -3) . '*');
        $i = $finder->getIterator();
        $i->next();
        $file = $i->current();
        if(!$file instanceof \SplFileInfo) throw new NotFoundHttpException(sprintf('Car image not found for "%s"', $path));
        return $dir . '/' . $file->getFilename();
    }
}

I know that it's possible to make own constructor and save rootPath in another class property but it's duplicity I would like to awoid.

[lsmith77]

ok .. merging.