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<?php |
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declare(strict_types=1); |
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namespace PhpMyAdmin\MoTranslator\Cache; |
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use PhpMyAdmin\MoTranslator\MoParser; |
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use Psr\Cache\CacheItemPoolInterface; |
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use function array_combine; |
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use function array_keys; |
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use function array_map; |
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use function is_string; |
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use function md5; |
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final class Psr6Cache implements CacheInterface |
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{ |
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public const LOADED_KEY = '__TRANSLATIONS_LOADED__'; |
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/** @var CacheItemPoolInterface */ |
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private $psr6Cache; |
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/** @var MoParser */ |
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private $parser; |
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/** @var string */ |
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private $locale; |
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/** @var string */ |
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private $domain; |
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/** @var int */ |
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private $ttl; |
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/** @var bool */ |
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private $reloadOnMiss; |
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/** @var string */ |
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private $prefix; |
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/** @var string */ |
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private $separator; |
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public function __construct( |
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CacheItemPoolInterface $psr6Cache, |
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MoParser $parser, |
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string $locale, |
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string $domain, |
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int $ttl = 0, |
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bool $reloadOnMiss = true, |
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string $prefix = 'mo_', |
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string $separator = '.' |
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) { |
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$this->psr6Cache = $psr6Cache; |
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$this->parser = $parser; |
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$this->locale = $locale; |
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$this->domain = $domain; |
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$this->ttl = $ttl; |
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$this->reloadOnMiss = $reloadOnMiss; |
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$this->prefix = $prefix; |
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$this->separator = $separator; |
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$this->ensureTranslationsLoaded(); |
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} |
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public function get(string $msgid): string |
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{ |
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$cacheItem = $this->psr6Cache->getItem($this->getKey($msgid)); |
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$cacheItemValue = $cacheItem->isHit() ? $cacheItem->get() : null; |
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if (is_string($cacheItemValue)) { |
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return $cacheItemValue; |
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} |
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if (! $this->reloadOnMiss) { |
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return $msgid; |
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} |
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$cacheItem->set($msgid); |
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if ($this->ttl > 0) { |
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$cacheItem->expiresAfter($this->ttl); |
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} |
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$this->psr6Cache->save($cacheItem); |
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// reload .mo file, in case entry has been evicted |
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$this->parser->parseIntoCache($this); |
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$cacheItem = $this->psr6Cache->getItem($this->getKey($msgid)); |
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$cacheItemValue = $cacheItem->isHit() ? $cacheItem->get() : null; |
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return is_string($cacheItemValue) |
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? $cacheItemValue |
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: $msgid; |
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} |
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public function set(string $msgid, string $msgstr): void |
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{ |
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$cacheItem = $this->psr6Cache->getItem($this->getKey($msgid)); |
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$cacheItem->set($msgstr); |
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if ($this->ttl > 0) { |
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$cacheItem->expiresAfter($this->ttl); |
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} |
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$this->psr6Cache->save($cacheItem); |
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} |
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public function has(string $msgid): bool |
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{ |
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return $this->psr6Cache->hasItem($this->getKey($msgid)); |
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} |
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public function setAll(array $translations): void |
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{ |
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$keys = array_map(function (string $msgid): string { |
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return $this->getKey($msgid); |
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}, array_keys($translations)); |
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$translations = array_combine($keys, $translations); |
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foreach ($this->psr6Cache->getItems($keys) as $cacheItem) { |
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$cacheItem->set($translations[$cacheItem->getKey()]); |
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if ($this->ttl > 0) { |
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$cacheItem->expiresAfter($this->ttl); |
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} |
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$this->psr6Cache->saveDeferred($cacheItem); |
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} |
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$this->psr6Cache->commit(); |
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} |
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private function getKey(string $msgid): string |
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{ |
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// Hash the message ID to avoid using restricted characters in various cache adapters. |
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return $this->prefix . $this->locale . $this->separator . $this->domain . $this->separator . md5($msgid); |
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} |
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private function ensureTranslationsLoaded(): void |
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{ |
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// Try to prevent cache slam if multiple processes are trying to load translations. There is still a race |
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// between the exists check and creating the entry, but at least it's small |
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$cacheItem = $this->psr6Cache->getItem($this->getKey(self::LOADED_KEY)); |
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if ($cacheItem->isHit()) { |
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return; |
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} |
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$this->parser->parseIntoCache($this); |
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$cacheItem->set(1); |
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if ($this->ttl > 0) { |
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$cacheItem->expiresAfter($this->ttl); |
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} |
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$this->psr6Cache->save($cacheItem); |
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} |
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} |
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