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<?php |
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/** |
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* CallableObject.php |
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* |
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* Jaxon callable object |
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* |
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* This class stores a reference to an object whose methods can be called from |
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* the client via a Jaxon request |
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* |
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* The Jaxon plugin manager will call <CallableObject->getClientScript> so that |
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* stub functions can be generated and sent to the browser. |
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* |
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* @package jaxon-core |
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* @author Jared White |
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* @author J. Max Wilson |
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* @author Joseph Woolley |
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* @author Steffen Konerow |
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* @author Thierry Feuzeu <[email protected]> |
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* @copyright Copyright (c) 2005-2007 by Jared White & J. Max Wilson |
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* @copyright Copyright (c) 2008-2010 by Joseph Woolley, Steffen Konerow, Jared White & J. Max Wilson |
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* @copyright 2016 Thierry Feuzeu <[email protected]> |
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* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License |
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* @link https://github.com/jaxon-php/jaxon-core |
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*/ |
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namespace Jaxon\Plugin\Request\CallableClass; |
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use Jaxon\Di\Container; |
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use Jaxon\Exception\SetupException; |
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use Jaxon\Plugin\AnnotationReaderInterface; |
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use Jaxon\Request\Target; |
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use Jaxon\Response\ResponseInterface; |
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use ReflectionClass; |
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use ReflectionException; |
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use ReflectionMethod; |
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use ReflectionProperty; |
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use function array_filter; |
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use function array_map; |
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use function array_merge; |
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use function in_array; |
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use function is_array; |
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use function is_string; |
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use function json_encode; |
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use function str_replace; |
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use function substr; |
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class CallableObject |
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{ |
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* The DI container |
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* |
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* @var Container |
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*/ |
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protected $di; |
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/** |
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* The reflection class of the user registered callable object |
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* |
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* @var ReflectionClass |
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*/ |
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private $xReflectionClass; |
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/** |
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* The user registered callable object |
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* |
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* @var mixed |
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*/ |
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private $xRegisteredObject = null; |
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/** |
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* The target of the Jaxon call |
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* |
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* @var Target |
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*/ |
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private $xTarget; |
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/** |
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* The options of this callable object |
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* |
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* @var CallableObjectOptions |
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*/ |
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private $xOptions; |
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/** |
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* @var int |
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*/ |
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private $nPropertiesFilter = ReflectionProperty::IS_PUBLIC | ReflectionProperty::IS_PROTECTED; |
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/** |
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* @var int |
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*/ |
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private $nMethodsFilter = ReflectionMethod::IS_PUBLIC; |
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/** |
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* The class constructor |
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* |
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* @param Container $di |
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* @param AnnotationReaderInterface $xAnnotationReader |
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* @param ReflectionClass $xReflectionClass The reflection class |
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* @param array $aOptions |
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* @param array $aProtectedMethods |
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*/ |
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public function __construct(Container $di, AnnotationReaderInterface $xAnnotationReader, |
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ReflectionClass $xReflectionClass, array $aOptions, array $aProtectedMethods) |
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{ |
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$this->di = $di; |
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$this->xReflectionClass = $xReflectionClass; |
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$this->xOptions = new CallableObjectOptions(); |
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$sClassName = $xReflectionClass->getName(); |
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$aMethods = $this->getPublicMethods($aProtectedMethods); |
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$aProperties = $this->getProperties(); |
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$aAnnotations = $xAnnotationReader->getAttributes($sClassName, $aMethods, $aProperties); |
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[$bExcluded,] = $aAnnotations; |
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if($bExcluded) |
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{ |
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$this->configure('excluded', true); |
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return; |
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} |
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$this->xOptions->setOptions($aOptions, $aAnnotations); |
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} |
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/** |
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* Check if the js code for this object must be generated |
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* |
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* @return bool |
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*/ |
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public function excluded(): bool |
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{ |
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return $this->xOptions->excluded(); |
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} |
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/** |
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* Get the name of the registered PHP class |
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* @return string |
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*/ |
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public function getClassName(): string |
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{ |
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return $this->xReflectionClass->getName(); |
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} |
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/** |
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* Get the name of the corresponding javascript class |
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* |
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* @return string |
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*/ |
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public function getJsName(): string |
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{ |
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return str_replace('\\', $this->xOptions->separator(), $this->getClassName()); |
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} |
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/** |
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* Set configuration options / call options for each method |
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* |
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* @param string $sName The name of the configuration option |
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* @param string|array $xValue The value of the configuration option |
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* |
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* @return void |
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*/ |
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public function configure(string $sName, $xValue) |
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{ |
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$this->xOptions->addOption($sName, $xValue); |
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} |
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/** |
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* @return array |
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*/ |
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public function getClassDiOptions(): array |
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{ |
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$aDiOptions = $this->xOptions->diOptions(); |
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return $aDiOptions['*'] ?? []; |
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} |
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/** |
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* @param string $sMethodName |
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* |
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* @return array |
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*/ |
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public function getMethodDiOptions(string $sMethodName): array |
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{ |
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$aDiOptions = $this->xOptions->diOptions(); |
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return $aDiOptions[$sMethodName] ?? []; |
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} |
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/** |
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* Get the js options of the callable class |
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* |
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* @return array |
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*/ |
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public function getOptions(): array |
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{ |
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return $this->xOptions->jsOptions(); |
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} |
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/** |
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* Get the public and protected attributes of the callable object |
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* |
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* @return array |
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*/ |
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public function getProperties(): array |
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{ |
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return array_map(function($xProperty) { |
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return $xProperty->getName(); |
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}, $this->xReflectionClass->getProperties($this->nPropertiesFilter)); |
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} |
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/** |
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* Get the public methods of the callable object |
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* |
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* @param array $aProtectedMethods The protected methods |
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* |
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* @return array |
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*/ |
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public function getPublicMethods(array $aProtectedMethods = []): array |
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{ |
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$aMethods = array_map(function($xMethod) { |
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return $xMethod->getShortName(); |
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}, $this->xReflectionClass->getMethods($this->nMethodsFilter)); |
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return array_filter($aMethods, function($sMethodName) use($aProtectedMethods) { |
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// Don't take magic __call, __construct, __destruct methods |
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// Don't take protected methods |
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return substr($sMethodName, 0, 2) !== '__' && |
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!in_array($sMethodName, $aProtectedMethods) && |
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!in_array($sMethodName, $this->xOptions->protectedMethods()); |
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}); |
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} |
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/** |
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* Return a list of methods of the callable object to export to javascript |
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* |
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* @param array $aProtectedMethods The protected methods |
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* |
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* @return array |
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*/ |
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public function getCallableMethods(array $aProtectedMethods): array |
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{ |
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// Convert an option to a string to be displayed in the js script template. |
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$fConvertOption = function($xOption) { |
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return is_array($xOption) ? json_encode($xOption) : $xOption; |
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}; |
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return array_map(function($sMethodName) use($fConvertOption) { |
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return [ |
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'name' => $sMethodName, |
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'config' => array_map($fConvertOption, $this->xOptions->getMethodOptions($sMethodName)), |
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]; |
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}, $this->getPublicMethods($aProtectedMethods)); |
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} |
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/** |
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* Get the registered callable object |
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* |
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* @return null|object |
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*/ |
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public function getRegisteredObject() |
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{ |
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return $this->di->g($this->xReflectionClass->getName()); |
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} |
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/** |
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* Check if the specified method name is one of the methods of the registered callable object |
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* |
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* @param string $sMethod The name of the method to check |
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* |
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* @return bool |
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*/ |
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public function hasMethod(string $sMethod): bool |
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{ |
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return $this->xReflectionClass->hasMethod($sMethod); |
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} |
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/** |
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* Call the specified method of the registered callable object using the specified array of arguments |
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* |
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* @param string $sMethod The method name |
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* @param array $aArgs The method arguments |
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* @param bool $bAccessible If false, only calls to public method are allowed |
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* |
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* @return mixed |
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* @throws ReflectionException |
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*/ |
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private function callMethod(string $sMethod, array $aArgs, bool $bAccessible) |
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{ |
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$reflectionMethod = $this->xReflectionClass->getMethod($sMethod); |
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$reflectionMethod->setAccessible($bAccessible); // Make it possible to call protected methods |
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return $reflectionMethod->invokeArgs($this->xRegisteredObject, $aArgs); |
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} |
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/** |
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* Call the specified method of the registered callable object using the specified array of arguments |
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* |
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* @param array $aHookMethods The method config options |
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* |
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* @return void |
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* @throws ReflectionException |
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*/ |
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private function callHookMethods(array $aHookMethods) |
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{ |
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$sMethod = $this->xTarget->getMethodName(); |
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// The hooks defined at method level are merged with those defined at class level. |
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$aMethods = array_merge($aHookMethods['*'] ?? [], $aHookMethods[$sMethod] ?? []); |
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foreach($aMethods as $xKey => $xValue) |
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{ |
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$sHookName = $xValue; |
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$aHookArgs = []; |
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311
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|
|
if(is_string($xKey)) |
|
312
|
|
|
{ |
|
313
|
|
|
$sHookName = $xKey; |
|
314
|
|
|
$aHookArgs = is_array($xValue) ? $xValue : [$xValue]; |
|
315
|
|
|
} |
|
316
|
|
|
$this->callMethod($sHookName, $aHookArgs, true); |
|
317
|
|
|
} |
|
318
|
|
|
} |
|
|
|
|
|
|
319
|
|
|
|
|
320
|
|
|
/** |
|
321
|
|
|
* Call the specified method of the registered callable object using the specified array of arguments |
|
322
|
|
|
* |
|
323
|
|
|
* @param Target $xTarget The target of the Jaxon call |
|
324
|
|
|
* |
|
325
|
|
|
* @return null|ResponseInterface |
|
326
|
|
|
* @throws ReflectionException |
|
327
|
|
|
* @throws SetupException |
|
328
|
|
|
*/ |
|
329
|
|
|
public function call(Target $xTarget): ?ResponseInterface |
|
330
|
|
|
{ |
|
331
|
|
|
$this->xTarget = $xTarget; |
|
|
|
|
|
|
332
|
|
|
$this->xRegisteredObject = $this->di->getRegisteredObject($this, $xTarget); |
|
333
|
|
|
|
|
334
|
|
|
// Methods to call before processing the request |
|
335
|
|
|
$this->callHookMethods($this->xOptions->beforeMethods()); |
|
336
|
|
|
|
|
337
|
|
|
// Call the request method |
|
338
|
|
|
$sMethod = $xTarget->getMethodName(); |
|
|
|
|
|
|
339
|
|
|
$xResponse = $this->callMethod($sMethod, $this->xTarget->getMethodArgs(), false); |
|
340
|
|
|
|
|
341
|
|
|
// Methods to call after processing the request |
|
342
|
|
|
$this->callHookMethods($this->xOptions->afterMethods()); |
|
343
|
|
|
return $xResponse; |
|
344
|
|
|
} |
|
|
|
|
|
|
345
|
|
|
} |
|
346
|
|
|
|