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<?php |
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/** |
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* \AppserverIo\Appserver\PersistenceContainer\ServiceLocator |
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* |
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* NOTICE OF LICENSE |
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* |
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* This source file is subject to the Open Software License (OSL 3.0) |
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* that is available through the world-wide-web at this URL: |
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* http://opensource.org/licenses/osl-3.0.php |
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* |
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* PHP version 5 |
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* |
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* @author Tim Wagner <[email protected]> |
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* @copyright 2015 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link https://github.com/appserver-io/appserver |
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* @link http://www.appserver.io |
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*/ |
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namespace AppserverIo\Appserver\PersistenceContainer; |
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use AppserverIo\Psr\EnterpriseBeans\EnterpriseBeansException; |
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use AppserverIo\Psr\EnterpriseBeans\ServiceContextInterface; |
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use AppserverIo\Psr\EnterpriseBeans\ServiceResourceLocatorInterface; |
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/** |
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* The service locator implementation. |
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* |
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* @author Tim Wagner <[email protected]> |
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* @copyright 2015 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link https://github.com/appserver-io/appserver |
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* @link http://www.appserver.io |
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*/ |
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class ServiceLocator implements ServiceResourceLocatorInterface |
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{ |
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/** |
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* Tries to lookup the service with the passed identifier. |
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* |
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* @param \AppserverIo\Psr\EnterpriseBeans\ServiceContextInterface $serviceContext The service context instance |
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* @param string $serviceIdentifier The identifier of the service to be looked up |
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* @param array $args The arguments passed to the service providers constructor |
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* |
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* @return \AppserverIo\Psr\EnterpriseBeans\ServiceProviderInterface The requested service provider instance |
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* @throws \AppserverIo\Psr\EnterpriseBeans\EnterpriseBeansException Is thrown if the requested server can't be lookup up |
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* @see \AppserverIo\Psr\EnterpriseBeans\ServiceResourceLocatorInterface::lookup() |
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*/ |
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public function lookup(ServiceContextInterface $serviceContext, $serviceIdentifier, array $args = array()) |
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{ |
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// first check if the service is available |
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if ($serviceContext->getServices()->has($serviceIdentifier) === false) { |
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throw new EnterpriseBeansException( |
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sprintf( |
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'Requested service %s to handle %s is not available', |
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$serviceContext->getIdentifier(), |
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$serviceIdentifier |
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) |
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); |
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} |
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// return the initialized service instance |
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return $serviceContext->getServices()->get($serviceIdentifier); |
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} |
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} |
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appserver-io /
appserver
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