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<?php |
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/* |
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* This file is part of the Veslo project <https://github.com/symfony-doge/veslo>. |
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* |
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* (C) 2019 Pavel Petrov <[email protected]>. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @license https://opensource.org/licenses/GPL-3.0 GPL-3.0 |
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*/ |
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declare(strict_types=1); |
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namespace Veslo\AppBundle\DependencyInjection\Compiler; |
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use Ds\PriorityQueue; |
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use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface; |
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use Symfony\Component\DependencyInjection\Compiler\PriorityTaggedServiceTrait; |
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use Symfony\Component\DependencyInjection\ContainerBuilder; |
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use Symfony\Component\DependencyInjection\Reference; |
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use Veslo\AppBundle\Http\Proxy\LocatorChain; |
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use Veslo\AppBundle\Http\Proxy\LocatorInterface; |
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/** |
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* Aggregates available locators into locator chain for proxy list resolving |
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* |
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* There are at least two handy ways of managing service priority while processing tags: |
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* `PriorityTaggedServiceTrait` and `Ds\PriorityQueue` |
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* |
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* @see PriorityTaggedServiceTrait |
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* @see PriorityQueue |
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* @see LocatorChain |
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*/ |
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class ProxyLocatorPass implements CompilerPassInterface |
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{ |
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/** |
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* Service id for aggregation |
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* |
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* @const string |
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*/ |
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private const SERVICE_ID_AGGREGATOR = 'veslo.app.http.proxy.locator_chain'; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ContainerBuilder $container) |
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{ |
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$proxyLocatorServiceIds = $container->findTaggedServiceIds(LocatorInterface::TAG); |
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$locatorChainDefinition = $container->getDefinition(self::SERVICE_ID_AGGREGATOR); |
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foreach ($proxyLocatorServiceIds as $serviceId => $tags) { |
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foreach ($tags as $attributes) { |
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$priority = $attributes['priority'] ?? 0; |
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$isImportant = !empty($attributes['isImportant']); |
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$proxyLocatorReference = new Reference($serviceId); |
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$locatorChainDefinition->addMethodCall('addLocator', [$proxyLocatorReference, $priority, $isImportant]); |
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} |
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} |
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} |
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} |
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