InMemoryRateLimiter::limitSilently() - Code Metrics - Inspection of "In-memory Rate Limiter implementation" - nikolaposa/rate-limit - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#32)

by Nikola

created 2020-06-27 10:33 UTC

InMemoryRateLimiter::limitSilently() A

↳ Parent: InMemoryRateLimiter

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	13
ccs	8
cts	8
cp	1
rs	9.8333
c	0
b	0
f	0
cc	1
nc	1
nop	2
crap	1

<?php

declare(strict_types=1);

namespace RateLimit;

use RateLimit\Exception\LimitExceeded;

final class InMemoryRateLimiter implements RateLimiter, SilentRateLimiter
{
    /** @var array */
    private $store = [];

    public function limit(string $identifier, Rate $rate): void
    {
        $key = $this->key($identifier, $rate->getInterval());

        $current = $this->hit($key, $rate);

        if ($current > $rate->getOperations()) {
            throw LimitExceeded::for($identifier, $rate);
        }
    }

    public function limitSilently(string $identifier, Rate $rate): Status
    {
        $key = $this->key($identifier, $rate->getInterval());

        $current = $this->hit($key, $rate);

        return Status::from(
            $identifier,
            $current,
            $rate->getOperations(),
            $this->store[$key]['reset_time']
        );
    }

    private function key(string $identifier, int $interval): string
    {
        return "$identifier:$interval:" . floor(time() / $interval);
    }

    private function hit(string $key, Rate $rate): int
    {
        if (!isset($this->store[$key])) {
            $this->store[$key] = [
                'current' => 1,
                'reset_time' => time() + $rate->getInterval(),
            ];
        } elseif ($this->store[$key]['current'] <= $rate->getOperations()) {
            $this->store[$key]['current']++;
        }

        return $this->store[$key]['current'];
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace RateLimit;
6
7		use RateLimit\Exception\LimitExceeded;
8
9		final class InMemoryRateLimiter implements RateLimiter, SilentRateLimiter
10		{
11		/** @var array */
12		private $store = [];
13
14	2	public function limit(string $identifier, Rate $rate): void
15		{
16	2	$key = $this->key($identifier, $rate->getInterval());
17
18	2	$current = $this->hit($key, $rate);
19
20	2	if ($current > $rate->getOperations()) {
21	2	throw LimitExceeded::for($identifier, $rate);
22		}
23	2	}
24
25	3	public function limitSilently(string $identifier, Rate $rate): Status
26		{
27	3	$key = $this->key($identifier, $rate->getInterval());
28
29	3	$current = $this->hit($key, $rate);
30
31	3	return Status::from(
32	3	$identifier,
33	3	$current,
34	3	$rate->getOperations(),
35	3	$this->store[$key]['reset_time']
36		);
37		}
38
39	5	private function key(string $identifier, int $interval): string
40		{
41	5	return "$identifier:$interval:" . floor(time() / $interval);
42		}
43
44	5	private function hit(string $key, Rate $rate): int
45		{
46	5	if (!isset($this->store[$key])) {
47	5	$this->store[$key] = [
48	5	'current' => 1,
49	5	'reset_time' => time() + $rate->getInterval(),
50		];
51	4	} elseif ($this->store[$key]['current'] <= $rate->getOperations()) {
52	4	$this->store[$key]['current']++;
53		}
54
55	5	return $this->store[$key]['current'];
56		}
57		}
58

nikolaposa / rate-limit

Pull Request — master (#32)

InMemoryRateLimiter::limitSilently() A

Complexity

Size

Duplication

Code Coverage

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