CacheKeyNormalizer::normalize() - Code Metrics - Inspection of "Fix #41: Refactoring cache interface and dependenc..." - yiisoft/cache - Measure and Improve Code Quality continuously with Scrutinizer

Passed

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by Alexander

created 2020-12-18 16:59 UTC

CacheKeyNormalizer::normalize() B

↳ Parent: CacheKeyNormalizer

Complexity

Conditions	7
Paths	8

Size

Total Lines	13
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	7

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
eloc	7
c	2
b	0
f	0
dl	0
loc	13
ccs	8
cts	8
cp	1
rs	8.8333
cc	7
nc	8
nop	1
crap	7

<?php

declare(strict_types=1);

namespace Yiisoft\Cache;

use Yiisoft\Cache\Exception\InvalidArgumentException;

use function json_encode;
use function json_last_error_msg;
use function is_int;
use function is_string;
use function md5;
use function mb_strlen;
use function strpbrk;

/**
 * CacheKeyNormalizer normalizes the cache key to a string.
 */
final class CacheKeyNormalizer
{
    /**
     * Normalizes the cache key from a given key.
     *
     * If the given key is a string that does not contain characters `{}()/\@:` and no more than 64 characters,
     * then the key will be returned back as it is, integers will be converted to strings. Otherwise,
     * a normalized key is generated by serializing the given key and applying MD5 hashing.
     *
     * @see https://www.php-fig.org/psr/psr-16/#12-definitions
     *
     * @param mixed $key The key to be normalized.
     *
     * @throws InvalidArgumentException For invalid key.
     *
     * @return string The normalized cache key.
     */
    public function normalize($key): string
    {
        if (is_string($key) || is_int($key)) {
            $key = (string) $key;
            $length = mb_strlen($key, '8bit');
            return (strpbrk($key, '{}()/\@:') || $length < 1 || $length > 64) ? md5($key) : $key;
        }

        if (($key = json_encode($key)) === false) {
            throw new InvalidArgumentException('Invalid key. ' . json_last_error_msg());
        }

        return md5($key);
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Cache;
6
7		use Yiisoft\Cache\Exception\InvalidArgumentException;
8
9		use function json_encode;
10		use function json_last_error_msg;
11		use function is_int;
12		use function is_string;
13		use function md5;
14		use function mb_strlen;
15		use function strpbrk;
16
17		/**
18		* CacheKeyNormalizer normalizes the cache key to a string.
19		*/
20		final class CacheKeyNormalizer
21		{
22		/**
23		* Normalizes the cache key from a given key.
24		*
25		* If the given key is a string that does not contain characters `{}()/\@:` and no more than 64 characters,
26		* then the key will be returned back as it is, integers will be converted to strings. Otherwise,
27		* a normalized key is generated by serializing the given key and applying MD5 hashing.
28		*
29		* @see https://www.php-fig.org/psr/psr-16/#12-definitions
30		*
31		* @param mixed $key The key to be normalized.
32		*
33		* @throws InvalidArgumentException For invalid key.
34		*
35		* @return string The normalized cache key.
36		*/
37	62	public function normalize($key): string
38		{
39	62	if (is_string($key) \|\| is_int($key)) {
40	43	$key = (string) $key;
41	43	$length = mb_strlen($key, '8bit');
42	43	return (strpbrk($key, '{}()/\@:') \|\| $length < 1 \|\| $length > 64) ? md5($key) : $key;
43		}
44
45	19	if (($key = json_encode($key)) === false) {
46	3	throw new InvalidArgumentException('Invalid key. ' . json_last_error_msg());
47		}
48
49	16	return md5($key);
50		}
51		}
52

yiisoft / cache

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CacheKeyNormalizer::normalize() B

Complexity

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