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<?php |
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namespace ConfigToken\TreeCompiler\XrefResolver; |
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use ConfigToken\Exception\AlreadyRegisteredException; |
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use ConfigToken\TreeCompiler\XrefResolver\Types\InlineXrefResolver; |
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use ConfigToken\TreeCompiler\XrefResolver\Types\UrlXrefResolver; |
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use ConfigToken\TreeCompiler\XrefResolver\Types\LocalFileXrefResolver; |
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use ConfigToken\TreeCompiler\XrefResolver\Exception\UnknownXrefTypeException; |
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class XrefResolverFactory |
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{ |
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/** @var XrefResolverInterface[] */ |
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protected static $registeredByType = array(); |
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/** |
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* Register all known resolvers. |
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*/ |
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protected static function registerKnownTypes() |
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{ |
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if (!empty(static::$registeredByType)) { |
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return; |
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} |
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static::internalRegister(new UrlXrefResolver()); |
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static::internalRegister(new LocalFileXrefResolver()); |
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static::internalRegister(new InlineXrefResolver()); |
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} |
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/** |
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* Get a registered resolver for the given type. |
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* |
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* @param string $xrefType |
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* @return XrefResolverInterface |
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* |
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* @throws UnknownXrefTypeException |
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*/ |
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View Code Duplication |
public static function getByType($xrefType) |
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{ |
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static::registerKnownTypes(); |
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if (isset(static::$registeredByType[$xrefType])) { |
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return static::$registeredByType[$xrefType]; |
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} |
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throw new UnknownXrefTypeException($xrefType); |
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} |
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/** |
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* Check if the given resolver is registerd. |
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* |
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* @param XrefResolverInterface $xrefResolver |
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* @return boolean |
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*/ |
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public static function isRegistered(XrefResolverInterface $xrefResolver) |
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{ |
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return (isset(static::$registeredByType[$xrefResolver::getType()])); |
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} |
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/** |
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* Used internally to register a new resolver. |
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* |
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* @param XrefResolverInterface $xrefResolver |
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*/ |
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protected static function internalRegister(XrefResolverInterface $xrefResolver) |
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{ |
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static::$registeredByType[$xrefResolver::getType()] = $xrefResolver; |
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} |
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/** |
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* Register a new resolver. |
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* |
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* @param XrefResolverInterface $xrefResolver |
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* @throws AlreadyRegisteredException |
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*/ |
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View Code Duplication |
public static function register(XrefResolverInterface $xrefResolver) |
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{ |
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if (static::isRegistered($xrefResolver)) { |
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throw new AlreadyRegisteredException( |
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sprintf( |
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'Xref resolver for Xref type %s is already registered.', |
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$xrefResolver::getType() |
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) |
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); |
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} |
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static::internalRegister($xrefResolver); |
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} |
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} |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.