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<?php |
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namespace Flying\Struct\Metadata; |
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use Doctrine\Common\Cache\Cache; |
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use Flying\Struct\ConfigurationManager; |
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use Flying\Struct\StructInterface; |
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/** |
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* Structures metadata manager |
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*/ |
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class MetadataManager implements MetadataManagerInterface |
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{ |
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/** |
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* Structures metadata parser |
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* |
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* @var MetadataParserInterface |
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*/ |
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private $parser; |
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/** |
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* Structures metadata cache |
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* |
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* @var Cache |
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*/ |
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private $cache; |
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/** |
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* Structures metadata |
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* |
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* @var array |
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*/ |
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private $metadata = []; |
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/** |
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* Prefix for cache entries for structure metadata |
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* |
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* @var string |
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*/ |
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private $cachePrefix = 'StructMetadata_'; |
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/** |
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* Get structure metadata information for given structure |
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* |
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* @param string|StructInterface $struct Either structure class name or instance of structure object |
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* to get metadata for |
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* @throws \InvalidArgumentException |
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* @return StructMetadata|null |
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*/ |
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public function getMetadata($struct) |
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{ |
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// Get class name of given structure |
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if (is_object($struct)) { |
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if ($struct instanceof StructInterface) { |
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$class = get_class($struct); |
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} else { |
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throw new \InvalidArgumentException('Structure class must implement StructInterface interface'); |
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} |
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} elseif (is_string($struct)) { |
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try { |
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$reflection = new \ReflectionClass($struct); |
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} catch (\ReflectionException $e) { |
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throw new \InvalidArgumentException('Invalid structure class "' . $struct . '"'); |
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} |
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if (in_array(StructInterface::class, $reflection->getInterfaceNames(), true)) { |
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$class = $reflection->name; |
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} else { |
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throw new \InvalidArgumentException('Structure class must implement StructInterface interface'); |
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} |
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} else { |
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throw new \InvalidArgumentException('Invalid structure information is given'); |
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} |
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// Check local metadata storage - fastest possible way |
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if (array_key_exists($class, $this->metadata)) { |
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return clone $this->metadata[$class]; |
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} |
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// Check metadata cache |
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$cacheKey = $this->getCacheKey($class); |
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if ($this->getCache()->contains($cacheKey)) { |
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$cachedMetadata = $this->getCache()->fetch($cacheKey); |
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if ($cachedMetadata instanceof StructMetadata) { |
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$this->metadata[$class] = $cachedMetadata; |
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return clone $cachedMetadata; |
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} |
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// Cache has incorrect or corrupted entry |
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$this->getCache()->delete($cacheKey); |
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} |
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// Get metadata from parser |
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$metadata = $this->getParser()->getMetadata($class); |
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if ($metadata instanceof StructMetadata) { |
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$this->metadata[$class] = $metadata; |
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$this->getCache()->save($cacheKey, $metadata); |
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return clone $metadata; |
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} |
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// No metadata is found for structure |
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return null; |
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} |
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/** |
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* Get cache key for given class |
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* |
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* @param string $class |
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* @return string |
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*/ |
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182 |
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protected function getCacheKey($class) |
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{ |
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return $this->cachePrefix . str_replace('\\', '_', $class); |
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} |
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/** |
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* Get metadata cache |
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* |
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* @return Cache |
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*/ |
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public function getCache() |
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{ |
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if (!$this->cache) { |
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$this->cache = ConfigurationManager::getConfiguration()->getCache(); |
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} |
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return $this->cache; |
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} |
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/** |
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* Set metadata cache |
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* |
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* @param Cache $cache |
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* @return $this |
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*/ |
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public function setCache(Cache $cache) |
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{ |
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$this->cache = $cache; |
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return $this; |
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} |
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/** |
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* Get metadata parser |
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* |
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* @return MetadataParserInterface |
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*/ |
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public function getParser() |
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{ |
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if (!$this->parser) { |
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$this->parser = ConfigurationManager::getConfiguration()->getMetadataParser(); |
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if ($this->parser instanceof AbstractMetadataParser) { |
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$this->parser->setMetadataManager($this); |
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} |
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} |
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return $this->parser; |
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} |
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/** |
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* Set metadata parser |
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* |
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* @param MetadataParserInterface $parser |
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* @return $this |
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*/ |
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7 |
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public function setParser(MetadataParserInterface $parser) |
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{ |
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$this->parser = $parser; |
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if ($this->parser instanceof AbstractMetadataParser) { |
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$this->parser->setMetadataManager($this); |
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} |
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return $this; |
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} |
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} |
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FlyingDR /
struct
