leinonen\DataLoader\CacheMap

Complexity

Total Complexity

10

Size/Duplication

Total Lines	82
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	set()	0	16	2
A	findCacheIndexByKey()	0	8	3
A	get()	0	10	2
A	delete()	0	5	1
A	clear()	0	4	1
A	count()	0	4	1

<?php

declare(strict_types=1);

namespace leinonen\DataLoader;

final class CacheMap implements CacheMapInterface, \Countable
{
    /**
     * @var array
     */
    private $cache = [];

    /**
     * {@inheritdoc}
     */
    public function get($key)
    {
        $index = $this->findCacheIndexByKey($key);

        if ($index === null) {
            return false;
        }

        return $this->cache[$index]['value'];
    }

    /**
     * {@inheritdoc}
     */
    public function set($key, $value): void
    {
        $cacheEntry = [
            'key' => $key,
            'value' => $value,
        ];
        $index = $this->findCacheIndexByKey($key);

        if ($index !== null) {
            $this->cache[$index] = $cacheEntry;

            return;
        }

        $this->cache[] = $cacheEntry;
    }

    /**
     * {@inheritdoc}
     */
    public function delete($key): void
    {
        $index = $this->findCacheIndexByKey($key);
        unset($this->cache[$index]);
    }

    /**
     * {@inheritdoc}
     */
    public function clear(): void
    {
        $this->cache = [];
    }

    /**
     * {@inheritdoc}
     */
    public function count(): int
    {
        return \count($this->cache);
    }

    /**
     * Returns the index of the value from the cache array with the given key.
     *
     * @param mixed $cacheKey
     *
     * @return mixed
     */
    private function findCacheIndexByKey($cacheKey)
    {
        foreach ($this->cache as $index => $data) {
            if ($data['key'] === $cacheKey) {
                return $index;
            }
        }
    }
}