StreamAccess.php

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<?php

declare(strict_types=1);

namespace ILIAS\ResourceStorage\Consumer\StreamAccess;

use ILIAS\Filesystem\Stream\FileStream;
use ILIAS\ResourceStorage\Flavour\Flavour;
use ILIAS\ResourceStorage\Revision\Revision;
use ILIAS\ResourceStorage\StorageHandler\StorageHandlerFactory;
use ILIAS\Filesystem\Exception\FileNotFoundException;

class StreamAccess
{
    public const PHP_MEMORY = 'php://memory';
    private StorageHandlerFactory $storage_handler_factory;

    public function __construct(
        string $storage_base_path,
        StorageHandlerFactory $storage_handler_factory
    ) {
        $this->storage_handler_factory = $storage_handler_factory;
    }

    public function populateRevision(Revision $revision): Revision
    {
        try {
            $stream = $this->storage_handler_factory->getHandlerForRevision($revision)->getStream($revision);

            return $revision->withStreamResolver(new StreamResolver($stream));
        } catch (FileNotFoundException) {
            throw new \RuntimeException(
                "Revision {$revision->getVersionNumber()} for Resource `{$revision->getIdentification()->serialize()}` not found in storage."
            );
        }
    }

    public function populateFlavour(
        Flavour $flavour,
        FileStream $file_stream,
        int $index
    ): Flavour {
        return $flavour->withStreamResolver(
            $index,
            new StreamResolver($file_stream)
        );
    }
}