AbstractAdapter.php 8.1 KB

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  1. <?php
  2. /*
  3. * This file is part of the Symfony package.
  4. *
  5. * (c) Fabien Potencier <fabien@symfony.com>
  6. *
  7. * For the full copyright and license information, please view the LICENSE
  8. * file that was distributed with this source code.
  9. */
  10. namespace Symfony\Component\Cache\Adapter;
  11. use Psr\Log\LoggerAwareInterface;
  12. use Psr\Log\LoggerInterface;
  13. use Symfony\Component\Cache\CacheItem;
  14. use Symfony\Component\Cache\Exception\InvalidArgumentException;
  15. use Symfony\Component\Cache\ResettableInterface;
  16. use Symfony\Component\Cache\Traits\AbstractAdapterTrait;
  17. use Symfony\Component\Cache\Traits\ContractsTrait;
  18. use Symfony\Contracts\Cache\CacheInterface;
  19. /**
  20. * @author Nicolas Grekas <p@tchwork.com>
  21. */
  22. abstract class AbstractAdapter implements AdapterInterface, CacheInterface, LoggerAwareInterface, ResettableInterface
  23. {
  24. use AbstractAdapterTrait;
  25. use ContractsTrait;
  26. /**
  27. * @internal
  28. */
  29. protected const NS_SEPARATOR = ':';
  30. private static $apcuSupported;
  31. private static $phpFilesSupported;
  32. protected function __construct(string $namespace = '', int $defaultLifetime = 0)
  33. {
  34. $this->namespace = '' === $namespace ? '' : CacheItem::validateKey($namespace).static::NS_SEPARATOR;
  35. $this->defaultLifetime = $defaultLifetime;
  36. if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
  37. throw new InvalidArgumentException(sprintf('Namespace must be %d chars max, %d given ("%s").', $this->maxIdLength - 24, \strlen($namespace), $namespace));
  38. }
  39. self::$createCacheItem ?? self::$createCacheItem = \Closure::bind(
  40. static function ($key, $value, $isHit) {
  41. $item = new CacheItem();
  42. $item->key = $key;
  43. $item->value = $v = $value;
  44. $item->isHit = $isHit;
  45. // Detect wrapped values that encode for their expiry and creation duration
  46. // For compactness, these values are packed in the key of an array using
  47. // magic numbers in the form 9D-..-..-..-..-00-..-..-..-5F
  48. if (\is_array($v) && 1 === \count($v) && 10 === \strlen($k = (string) array_key_first($v)) && "\x9D" === $k[0] && "\0" === $k[5] && "\x5F" === $k[9]) {
  49. $item->value = $v[$k];
  50. $v = unpack('Ve/Nc', substr($k, 1, -1));
  51. $item->metadata[CacheItem::METADATA_EXPIRY] = $v['e'] + CacheItem::METADATA_EXPIRY_OFFSET;
  52. $item->metadata[CacheItem::METADATA_CTIME] = $v['c'];
  53. }
  54. return $item;
  55. },
  56. null,
  57. CacheItem::class
  58. );
  59. self::$mergeByLifetime ?? self::$mergeByLifetime = \Closure::bind(
  60. static function ($deferred, $namespace, &$expiredIds, $getId, $defaultLifetime) {
  61. $byLifetime = [];
  62. $now = microtime(true);
  63. $expiredIds = [];
  64. foreach ($deferred as $key => $item) {
  65. $key = (string) $key;
  66. if (null === $item->expiry) {
  67. $ttl = 0 < $defaultLifetime ? $defaultLifetime : 0;
  68. } elseif (0 === $item->expiry) {
  69. $ttl = 0;
  70. } elseif (0 >= $ttl = (int) (0.1 + $item->expiry - $now)) {
  71. $expiredIds[] = $getId($key);
  72. continue;
  73. }
  74. if (isset(($metadata = $item->newMetadata)[CacheItem::METADATA_TAGS])) {
  75. unset($metadata[CacheItem::METADATA_TAGS]);
  76. }
  77. // For compactness, expiry and creation duration are packed in the key of an array, using magic numbers as separators
  78. $byLifetime[$ttl][$getId($key)] = $metadata ? ["\x9D".pack('VN', (int) (0.1 + $metadata[self::METADATA_EXPIRY] - self::METADATA_EXPIRY_OFFSET), $metadata[self::METADATA_CTIME])."\x5F" => $item->value] : $item->value;
  79. }
  80. return $byLifetime;
  81. },
  82. null,
  83. CacheItem::class
  84. );
  85. }
  86. /**
  87. * Returns the best possible adapter that your runtime supports.
  88. *
  89. * Using ApcuAdapter makes system caches compatible with read-only filesystems.
  90. *
  91. * @return AdapterInterface
  92. */
  93. public static function createSystemCache(string $namespace, int $defaultLifetime, string $version, string $directory, LoggerInterface $logger = null)
  94. {
  95. $opcache = new PhpFilesAdapter($namespace, $defaultLifetime, $directory, true);
  96. if (null !== $logger) {
  97. $opcache->setLogger($logger);
  98. }
  99. if (!self::$apcuSupported = self::$apcuSupported ?? ApcuAdapter::isSupported()) {
  100. return $opcache;
  101. }
  102. if (\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) && !filter_var(ini_get('apc.enable_cli'), \FILTER_VALIDATE_BOOLEAN)) {
  103. return $opcache;
  104. }
  105. $apcu = new ApcuAdapter($namespace, intdiv($defaultLifetime, 5), $version);
  106. if (null !== $logger) {
  107. $apcu->setLogger($logger);
  108. }
  109. return new ChainAdapter([$apcu, $opcache]);
  110. }
  111. public static function createConnection(string $dsn, array $options = [])
  112. {
  113. if (str_starts_with($dsn, 'redis:') || str_starts_with($dsn, 'rediss:')) {
  114. return RedisAdapter::createConnection($dsn, $options);
  115. }
  116. if (str_starts_with($dsn, 'memcached:')) {
  117. return MemcachedAdapter::createConnection($dsn, $options);
  118. }
  119. if (0 === strpos($dsn, 'couchbase:')) {
  120. if (CouchbaseBucketAdapter::isSupported()) {
  121. return CouchbaseBucketAdapter::createConnection($dsn, $options);
  122. }
  123. return CouchbaseCollectionAdapter::createConnection($dsn, $options);
  124. }
  125. throw new InvalidArgumentException(sprintf('Unsupported DSN: "%s".', $dsn));
  126. }
  127. /**
  128. * {@inheritdoc}
  129. *
  130. * @return bool
  131. */
  132. public function commit()
  133. {
  134. $ok = true;
  135. $byLifetime = (self::$mergeByLifetime)($this->deferred, $this->namespace, $expiredIds, \Closure::fromCallable([$this, 'getId']), $this->defaultLifetime);
  136. $retry = $this->deferred = [];
  137. if ($expiredIds) {
  138. $this->doDelete($expiredIds);
  139. }
  140. foreach ($byLifetime as $lifetime => $values) {
  141. try {
  142. $e = $this->doSave($values, $lifetime);
  143. } catch (\Exception $e) {
  144. }
  145. if (true === $e || [] === $e) {
  146. continue;
  147. }
  148. if (\is_array($e) || 1 === \count($values)) {
  149. foreach (\is_array($e) ? $e : array_keys($values) as $id) {
  150. $ok = false;
  151. $v = $values[$id];
  152. $type = get_debug_type($v);
  153. $message = sprintf('Failed to save key "{key}" of type %s%s', $type, $e instanceof \Exception ? ': '.$e->getMessage() : '.');
  154. CacheItem::log($this->logger, $message, ['key' => substr($id, \strlen($this->namespace)), 'exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
  155. }
  156. } else {
  157. foreach ($values as $id => $v) {
  158. $retry[$lifetime][] = $id;
  159. }
  160. }
  161. }
  162. // When bulk-save failed, retry each item individually
  163. foreach ($retry as $lifetime => $ids) {
  164. foreach ($ids as $id) {
  165. try {
  166. $v = $byLifetime[$lifetime][$id];
  167. $e = $this->doSave([$id => $v], $lifetime);
  168. } catch (\Exception $e) {
  169. }
  170. if (true === $e || [] === $e) {
  171. continue;
  172. }
  173. $ok = false;
  174. $type = get_debug_type($v);
  175. $message = sprintf('Failed to save key "{key}" of type %s%s', $type, $e instanceof \Exception ? ': '.$e->getMessage() : '.');
  176. CacheItem::log($this->logger, $message, ['key' => substr($id, \strlen($this->namespace)), 'exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
  177. }
  178. }
  179. return $ok;
  180. }
  181. }