Sunrise\Http\Message\Stream\TempFileStream

Complexity

Total Complexity

4

Size/Duplication

Total Lines	30
Duplicated Lines	0 %

Test Coverage

Coverage

75%

Importance

Changes	1
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	20	4

<?php declare(strict_types=1);

/**
 * It's free open-source software released under the MIT License.
 *
 * @author Anatoly Nekhay <afenric@gmail.com>
 * @copyright Copyright (c) 2018, Anatoly Nekhay
 * @license https://github.com/sunrise-php/http-message/blob/master/LICENSE
 * @link https://github.com/sunrise-php/http-message
 */

namespace Sunrise\Http\Message\Stream;

/**
 * Import classes
 */
use Sunrise\Http\Message\Exception\RuntimeException;
use Sunrise\Http\Message\Stream;

/**
 * Import functions
 */
use function fopen;
use function is_resource;
use function is_writable;
use function sys_get_temp_dir;
use function tempnam;

/**
 * TempFileStream
 */
final class TempFileStream extends Stream
{

    /**
     * Constructor of the class
     *
     * @param string|null $prefix
     *
     * @throws RuntimeException
     */
    public function __construct(?string $prefix = null)
    {
        $prefix ??= 'sunrisephp';

        $dirname = sys_get_temp_dir();
        if (!is_writable($dirname)) {
            throw new RuntimeException('Temporary files directory is not writable');
        }

        $filename = tempnam($dirname, $prefix);
        if ($filename === false) {
            throw new RuntimeException('Temporary file name cannot be generated');
        }

        $resource = fopen($filename, 'w+b');
        if (!is_resource($resource)) {
            throw new RuntimeException('Temporary file cannot be created or opened');
        }

        parent::__construct($resource);
    }
}