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<?php |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2012, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\Core; |
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use Go\Aop\Advisor; |
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use Go\Aop\Aspect; |
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use Go\Aop\Framework; |
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use Go\Aop\Pointcut; |
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use Go\Aop\PointFilter; |
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use Go\Aop\Support; |
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use Go\Aop\Support\DefaultPointcutAdvisor; |
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use Go\Lang\Annotation; |
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/** |
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* General aspect loader add common support for general advices, declared as annotations |
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*/ |
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class GeneralAspectLoaderExtension extends AbstractAspectLoaderExtension |
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{ |
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/** |
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* General aspect loader works with annotations from aspect |
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* |
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* For extension that works with annotations additional metaInformation will be passed |
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* |
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* @return string |
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*/ |
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public function getKind() |
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{ |
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return self::KIND_ANNOTATION; |
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} |
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/** |
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* General aspect loader works only with methods of aspect |
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* |
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* @return string|array |
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*/ |
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public function getTarget() |
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{ |
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return self::TARGET_METHOD; |
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} |
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/** |
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* Checks if loader is able to handle specific point of aspect |
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* |
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* @param Aspect $aspect Instance of aspect |
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* @param mixed|\ReflectionClass|\ReflectionMethod|\ReflectionProperty $reflection Reflection of point |
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* @param mixed|null $metaInformation Additional meta-information, e.g. annotation for method |
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* |
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* @return boolean true if extension is able to create an advisor from reflection and metaInformation |
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*/ |
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public function supports(Aspect $aspect, $reflection, $metaInformation = null) |
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{ |
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return $metaInformation instanceof Annotation\Interceptor |
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|| $metaInformation instanceof Annotation\Pointcut; |
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} |
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/** |
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* Loads definition from specific point of aspect into the container |
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* |
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* @param Aspect $aspect Instance of aspect |
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* @param mixed|\ReflectionClass|\ReflectionMethod|\ReflectionProperty $reflection Reflection of point |
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* @param mixed|null $metaInformation Additional meta-information, e.g. annotation for method |
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* |
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* @return array|Pointcut[]|Advisor[] |
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* |
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* @throws \UnexpectedValueException |
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*/ |
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public function load(Aspect $aspect, $reflection, $metaInformation = null) |
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{ |
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$loadedItems = []; |
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$pointcut = $this->parsePointcut($aspect, $reflection, $metaInformation); |
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$methodId = get_class($aspect) . '->' . $reflection->name; |
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$adviceCallback = $reflection->getClosure($aspect); |
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switch (true) { |
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// Register a pointcut by its name |
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case ($metaInformation instanceof Annotation\Pointcut): |
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$loadedItems[$methodId] = $pointcut; |
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break; |
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case ($pointcut instanceof PointFilter): |
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$advice = $this->getInterceptor($metaInformation, $adviceCallback); |
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$loadedItems[$methodId] = new DefaultPointcutAdvisor($pointcut, $advice); |
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break; |
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default: |
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throw new \UnexpectedValueException("Unsupported pointcut class: " . get_class($pointcut)); |
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} |
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return $loadedItems; |
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} |
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/** |
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* @param $metaInformation |
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* @param $adviceCallback |
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* @return \Go\Aop\Intercept\Interceptor |
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* @throws \UnexpectedValueException |
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*/ |
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protected function getInterceptor($metaInformation, $adviceCallback) |
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{ |
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$adviceOrder = $metaInformation->order; |
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$pointcutExpression = $metaInformation->value; |
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switch (true) { |
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case ($metaInformation instanceof Annotation\Before): |
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return new Framework\BeforeInterceptor($adviceCallback, $adviceOrder, $pointcutExpression); |
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case ($metaInformation instanceof Annotation\After): |
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return new Framework\AfterInterceptor($adviceCallback, $adviceOrder, $pointcutExpression); |
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case ($metaInformation instanceof Annotation\Around): |
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return new Framework\AroundInterceptor($adviceCallback, $adviceOrder, $pointcutExpression); |
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case ($metaInformation instanceof Annotation\AfterThrowing): |
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return new Framework\AfterThrowingInterceptor($adviceCallback, $adviceOrder, $pointcutExpression); |
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default: |
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throw new \UnexpectedValueException("Unsupported method meta class: " . get_class($metaInformation)); |
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} |
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} |
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} |
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goaop /
framework
