1171 lines
35 KiB
PHP
1171 lines
35 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespace Symfony\Component\DependencyInjection;
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use Symfony\Component\DependencyInjection\Compiler\Compiler;
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use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
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use Symfony\Component\DependencyInjection\Compiler\PassConfig;
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use Symfony\Component\DependencyInjection\Exception\BadMethodCallException;
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
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use Symfony\Component\DependencyInjection\Exception\LogicException;
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use Symfony\Component\DependencyInjection\Exception\RuntimeException;
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use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
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use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
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use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
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use Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag;
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use Symfony\Component\Config\Resource\FileResource;
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use Symfony\Component\Config\Resource\ResourceInterface;
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use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\InstantiatorInterface;
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use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\RealServiceInstantiator;
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use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
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use Symfony\Component\ExpressionLanguage\Expression;
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use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
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/**
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* ContainerBuilder is a DI container that provides an API to easily describe services.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class ContainerBuilder extends Container implements TaggedContainerInterface
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{
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/**
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* @var ExtensionInterface[]
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*/
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private $extensions = array();
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/**
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* @var ExtensionInterface[]
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*/
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private $extensionsByNs = array();
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/**
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* @var Definition[]
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*/
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private $definitions = array();
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/**
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* @var Alias[]
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*/
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private $aliasDefinitions = array();
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/**
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* @var ResourceInterface[]
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*/
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private $resources = array();
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private $extensionConfigs = array();
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/**
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* @var Compiler
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*/
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private $compiler;
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private $trackResources;
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/**
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* @var InstantiatorInterface|null
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*/
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private $proxyInstantiator;
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/**
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* @var ExpressionLanguage|null
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*/
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private $expressionLanguage;
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/**
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* @var ExpressionFunctionProviderInterface[]
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*/
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private $expressionLanguageProviders = array();
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public function __construct(ParameterBagInterface $parameterBag = null)
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{
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parent::__construct($parameterBag);
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$this->trackResources = interface_exists('Symfony\Component\Config\Resource\ResourceInterface');
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}
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/**
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* @var string[] with tag names used by findTaggedServiceIds
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*/
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private $usedTags = array();
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/**
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* @var string[][] a map of env var names to their placeholders
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*/
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private $envPlaceholders = array();
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/**
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* @var int[] a map of env vars to their resolution counter
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*/
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private $envCounters = array();
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/**
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* Sets the track resources flag.
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*
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* If you are not using the loaders and therefore don't want
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* to depend on the Config component, set this flag to false.
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*
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* @param bool $track true if you want to track resources, false otherwise
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*/
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public function setResourceTracking($track)
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{
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$this->trackResources = (bool) $track;
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}
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/**
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* Checks if resources are tracked.
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*
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* @return bool true if resources are tracked, false otherwise
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*/
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public function isTrackingResources()
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{
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return $this->trackResources;
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}
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/**
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* Sets the instantiator to be used when fetching proxies.
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*
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* @param InstantiatorInterface $proxyInstantiator
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*/
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public function setProxyInstantiator(InstantiatorInterface $proxyInstantiator)
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{
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$this->proxyInstantiator = $proxyInstantiator;
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}
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/**
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* Registers an extension.
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*
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* @param ExtensionInterface $extension An extension instance
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*/
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public function registerExtension(ExtensionInterface $extension)
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{
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$this->extensions[$extension->getAlias()] = $extension;
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if (false !== $extension->getNamespace()) {
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$this->extensionsByNs[$extension->getNamespace()] = $extension;
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}
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}
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/**
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* Returns an extension by alias or namespace.
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*
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* @param string $name An alias or a namespace
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*
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* @return ExtensionInterface An extension instance
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*
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* @throws LogicException if the extension is not registered
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*/
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public function getExtension($name)
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{
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if (isset($this->extensions[$name])) {
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return $this->extensions[$name];
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}
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if (isset($this->extensionsByNs[$name])) {
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return $this->extensionsByNs[$name];
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}
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throw new LogicException(sprintf('Container extension "%s" is not registered', $name));
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}
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/**
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* Returns all registered extensions.
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*
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* @return ExtensionInterface[] An array of ExtensionInterface
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*/
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public function getExtensions()
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{
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return $this->extensions;
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}
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/**
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* Checks if we have an extension.
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*
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* @param string $name The name of the extension
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*
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* @return bool If the extension exists
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*/
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public function hasExtension($name)
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{
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return isset($this->extensions[$name]) || isset($this->extensionsByNs[$name]);
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}
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/**
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* Returns an array of resources loaded to build this configuration.
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*
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* @return ResourceInterface[] An array of resources
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*/
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public function getResources()
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{
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return array_unique($this->resources);
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}
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/**
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* Adds a resource for this configuration.
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*
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* @param ResourceInterface $resource A resource instance
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*
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* @return $this
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*/
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public function addResource(ResourceInterface $resource)
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{
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if (!$this->trackResources) {
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return $this;
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}
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$this->resources[] = $resource;
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return $this;
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}
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/**
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* Sets the resources for this configuration.
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*
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* @param ResourceInterface[] $resources An array of resources
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*
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* @return $this
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*/
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public function setResources(array $resources)
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{
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if (!$this->trackResources) {
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return $this;
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}
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$this->resources = $resources;
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return $this;
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}
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/**
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* Adds the object class hierarchy as resources.
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*
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* @param object $object An object instance
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*
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* @return $this
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*/
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public function addObjectResource($object)
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{
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if ($this->trackResources) {
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$this->addClassResource(new \ReflectionClass($object));
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}
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return $this;
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}
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/**
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* Adds the given class hierarchy as resources.
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*
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* @param \ReflectionClass $class
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*
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* @return $this
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*/
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public function addClassResource(\ReflectionClass $class)
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{
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if (!$this->trackResources) {
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return $this;
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}
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do {
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if (is_file($class->getFileName())) {
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$this->addResource(new FileResource($class->getFileName()));
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}
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} while ($class = $class->getParentClass());
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return $this;
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}
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/**
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* Loads the configuration for an extension.
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*
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* @param string $extension The extension alias or namespace
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* @param array $values An array of values that customizes the extension
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*
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* @return $this
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*
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* @throws BadMethodCallException When this ContainerBuilder is frozen
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* @throws \LogicException if the container is frozen
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*/
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public function loadFromExtension($extension, array $values = array())
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{
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if ($this->isFrozen()) {
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throw new BadMethodCallException('Cannot load from an extension on a frozen container.');
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}
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$namespace = $this->getExtension($extension)->getAlias();
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$this->extensionConfigs[$namespace][] = $values;
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return $this;
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}
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/**
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* Adds a compiler pass.
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*
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* @param CompilerPassInterface $pass A compiler pass
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* @param string $type The type of compiler pass
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* @param int $priority Used to sort the passes
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*
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* @return $this
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*/
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public function addCompilerPass(CompilerPassInterface $pass, $type = PassConfig::TYPE_BEFORE_OPTIMIZATION/*, $priority = 0*/)
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{
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if (func_num_args() >= 3) {
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$priority = func_get_arg(2);
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} else {
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if (__CLASS__ !== get_class($this)) {
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$r = new \ReflectionMethod($this, __FUNCTION__);
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if (__CLASS__ !== $r->getDeclaringClass()->getName()) {
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@trigger_error(sprintf('Method %s() will have a third `$priority = 0` argument in version 4.0. Not defining it is deprecated since 3.2.', __METHOD__), E_USER_DEPRECATED);
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}
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}
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$priority = 0;
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}
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$this->getCompiler()->addPass($pass, $type, $priority);
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$this->addObjectResource($pass);
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return $this;
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}
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/**
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* Returns the compiler pass config which can then be modified.
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*
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* @return PassConfig The compiler pass config
|
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*/
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public function getCompilerPassConfig()
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{
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return $this->getCompiler()->getPassConfig();
|
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}
|
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|
||
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/**
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* Returns the compiler.
|
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*
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* @return Compiler The compiler
|
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*/
|
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public function getCompiler()
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{
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if (null === $this->compiler) {
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$this->compiler = new Compiler();
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}
|
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return $this->compiler;
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}
|
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|
||
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/**
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* Sets a service.
|
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*
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* @param string $id The service identifier
|
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* @param object $service The service instance
|
||
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*
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* @throws BadMethodCallException When this ContainerBuilder is frozen
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*/
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public function set($id, $service)
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{
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$id = strtolower($id);
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if ($this->isFrozen() && (isset($this->definitions[$id]) && !$this->definitions[$id]->isSynthetic())) {
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// setting a synthetic service on a frozen container is alright
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throw new BadMethodCallException(sprintf('Setting service "%s" for an unknown or non-synthetic service definition on a frozen container is not allowed.', $id));
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}
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unset($this->definitions[$id], $this->aliasDefinitions[$id]);
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parent::set($id, $service);
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}
|
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|
||
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/**
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* Removes a service definition.
|
||
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*
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||
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* @param string $id The service identifier
|
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*/
|
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public function removeDefinition($id)
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{
|
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unset($this->definitions[strtolower($id)]);
|
||
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}
|
||
|
|
||
|
/**
|
||
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* Returns true if the given service is defined.
|
||
|
*
|
||
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* @param string $id The service identifier
|
||
|
*
|
||
|
* @return bool true if the service is defined, false otherwise
|
||
|
*/
|
||
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public function has($id)
|
||
|
{
|
||
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$id = strtolower($id);
|
||
|
|
||
|
return isset($this->definitions[$id]) || isset($this->aliasDefinitions[$id]) || parent::has($id);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets a service.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
* @param int $invalidBehavior The behavior when the service does not exist
|
||
|
*
|
||
|
* @return object The associated service
|
||
|
*
|
||
|
* @throws InvalidArgumentException when no definitions are available
|
||
|
* @throws ServiceCircularReferenceException When a circular reference is detected
|
||
|
* @throws ServiceNotFoundException When the service is not defined
|
||
|
* @throws \Exception
|
||
|
*
|
||
|
* @see Reference
|
||
|
*/
|
||
|
public function get($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE)
|
||
|
{
|
||
|
$id = strtolower($id);
|
||
|
|
||
|
if ($service = parent::get($id, ContainerInterface::NULL_ON_INVALID_REFERENCE)) {
|
||
|
return $service;
|
||
|
}
|
||
|
|
||
|
if (!isset($this->definitions[$id]) && isset($this->aliasDefinitions[$id])) {
|
||
|
return $this->get((string) $this->aliasDefinitions[$id], $invalidBehavior);
|
||
|
}
|
||
|
|
||
|
try {
|
||
|
$definition = $this->getDefinition($id);
|
||
|
} catch (ServiceNotFoundException $e) {
|
||
|
if (ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $invalidBehavior) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
throw $e;
|
||
|
}
|
||
|
|
||
|
$this->loading[$id] = true;
|
||
|
|
||
|
try {
|
||
|
$service = $this->createService($definition, $id);
|
||
|
} finally {
|
||
|
unset($this->loading[$id]);
|
||
|
}
|
||
|
|
||
|
return $service;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Merges a ContainerBuilder with the current ContainerBuilder configuration.
|
||
|
*
|
||
|
* Service definitions overrides the current defined ones.
|
||
|
*
|
||
|
* But for parameters, they are overridden by the current ones. It allows
|
||
|
* the parameters passed to the container constructor to have precedence
|
||
|
* over the loaded ones.
|
||
|
*
|
||
|
* $container = new ContainerBuilder(array('foo' => 'bar'));
|
||
|
* $loader = new LoaderXXX($container);
|
||
|
* $loader->load('resource_name');
|
||
|
* $container->register('foo', new stdClass());
|
||
|
*
|
||
|
* In the above example, even if the loaded resource defines a foo
|
||
|
* parameter, the value will still be 'bar' as defined in the ContainerBuilder
|
||
|
* constructor.
|
||
|
*
|
||
|
* @param ContainerBuilder $container The ContainerBuilder instance to merge
|
||
|
*
|
||
|
* @throws BadMethodCallException When this ContainerBuilder is frozen
|
||
|
*/
|
||
|
public function merge(ContainerBuilder $container)
|
||
|
{
|
||
|
if ($this->isFrozen()) {
|
||
|
throw new BadMethodCallException('Cannot merge on a frozen container.');
|
||
|
}
|
||
|
|
||
|
$this->addDefinitions($container->getDefinitions());
|
||
|
$this->addAliases($container->getAliases());
|
||
|
$this->getParameterBag()->add($container->getParameterBag()->all());
|
||
|
|
||
|
if ($this->trackResources) {
|
||
|
foreach ($container->getResources() as $resource) {
|
||
|
$this->addResource($resource);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
foreach ($this->extensions as $name => $extension) {
|
||
|
if (!isset($this->extensionConfigs[$name])) {
|
||
|
$this->extensionConfigs[$name] = array();
|
||
|
}
|
||
|
|
||
|
$this->extensionConfigs[$name] = array_merge($this->extensionConfigs[$name], $container->getExtensionConfig($name));
|
||
|
}
|
||
|
|
||
|
if ($this->getParameterBag() instanceof EnvPlaceholderParameterBag && $container->getParameterBag() instanceof EnvPlaceholderParameterBag) {
|
||
|
$this->getParameterBag()->mergeEnvPlaceholders($container->getParameterBag());
|
||
|
}
|
||
|
|
||
|
foreach ($container->envCounters as $env => $count) {
|
||
|
if (!isset($this->envCounters[$env])) {
|
||
|
$this->envCounters[$env] = $count;
|
||
|
} else {
|
||
|
$this->envCounters[$env] += $count;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns the configuration array for the given extension.
|
||
|
*
|
||
|
* @param string $name The name of the extension
|
||
|
*
|
||
|
* @return array An array of configuration
|
||
|
*/
|
||
|
public function getExtensionConfig($name)
|
||
|
{
|
||
|
if (!isset($this->extensionConfigs[$name])) {
|
||
|
$this->extensionConfigs[$name] = array();
|
||
|
}
|
||
|
|
||
|
return $this->extensionConfigs[$name];
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Prepends a config array to the configs of the given extension.
|
||
|
*
|
||
|
* @param string $name The name of the extension
|
||
|
* @param array $config The config to set
|
||
|
*/
|
||
|
public function prependExtensionConfig($name, array $config)
|
||
|
{
|
||
|
if (!isset($this->extensionConfigs[$name])) {
|
||
|
$this->extensionConfigs[$name] = array();
|
||
|
}
|
||
|
|
||
|
array_unshift($this->extensionConfigs[$name], $config);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Compiles the container.
|
||
|
*
|
||
|
* This method passes the container to compiler
|
||
|
* passes whose job is to manipulate and optimize
|
||
|
* the container.
|
||
|
*
|
||
|
* The main compiler passes roughly do four things:
|
||
|
*
|
||
|
* * The extension configurations are merged;
|
||
|
* * Parameter values are resolved;
|
||
|
* * The parameter bag is frozen;
|
||
|
* * Extension loading is disabled.
|
||
|
*/
|
||
|
public function compile()
|
||
|
{
|
||
|
$compiler = $this->getCompiler();
|
||
|
|
||
|
if ($this->trackResources) {
|
||
|
foreach ($compiler->getPassConfig()->getPasses() as $pass) {
|
||
|
$this->addObjectResource($pass);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$compiler->compile($this);
|
||
|
|
||
|
foreach ($this->definitions as $id => $definition) {
|
||
|
if ($this->trackResources && $definition->isLazy() && ($class = $definition->getClass()) && class_exists($class)) {
|
||
|
$this->addClassResource(new \ReflectionClass($class));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$this->extensionConfigs = array();
|
||
|
$bag = $this->getParameterBag();
|
||
|
|
||
|
parent::compile();
|
||
|
|
||
|
$this->envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : array();
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets all service ids.
|
||
|
*
|
||
|
* @return array An array of all defined service ids
|
||
|
*/
|
||
|
public function getServiceIds()
|
||
|
{
|
||
|
return array_unique(array_merge(array_keys($this->getDefinitions()), array_keys($this->aliasDefinitions), parent::getServiceIds()));
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Adds the service aliases.
|
||
|
*
|
||
|
* @param array $aliases An array of aliases
|
||
|
*/
|
||
|
public function addAliases(array $aliases)
|
||
|
{
|
||
|
foreach ($aliases as $alias => $id) {
|
||
|
$this->setAlias($alias, $id);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Sets the service aliases.
|
||
|
*
|
||
|
* @param array $aliases An array of aliases
|
||
|
*/
|
||
|
public function setAliases(array $aliases)
|
||
|
{
|
||
|
$this->aliasDefinitions = array();
|
||
|
$this->addAliases($aliases);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Sets an alias for an existing service.
|
||
|
*
|
||
|
* @param string $alias The alias to create
|
||
|
* @param string|Alias $id The service to alias
|
||
|
*
|
||
|
* @throws InvalidArgumentException if the id is not a string or an Alias
|
||
|
* @throws InvalidArgumentException if the alias is for itself
|
||
|
*/
|
||
|
public function setAlias($alias, $id)
|
||
|
{
|
||
|
$alias = strtolower($alias);
|
||
|
|
||
|
if (is_string($id)) {
|
||
|
$id = new Alias($id);
|
||
|
} elseif (!$id instanceof Alias) {
|
||
|
throw new InvalidArgumentException('$id must be a string, or an Alias object.');
|
||
|
}
|
||
|
|
||
|
if ($alias === (string) $id) {
|
||
|
throw new InvalidArgumentException(sprintf('An alias can not reference itself, got a circular reference on "%s".', $alias));
|
||
|
}
|
||
|
|
||
|
unset($this->definitions[$alias]);
|
||
|
|
||
|
$this->aliasDefinitions[$alias] = $id;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Removes an alias.
|
||
|
*
|
||
|
* @param string $alias The alias to remove
|
||
|
*/
|
||
|
public function removeAlias($alias)
|
||
|
{
|
||
|
unset($this->aliasDefinitions[strtolower($alias)]);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns true if an alias exists under the given identifier.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
*
|
||
|
* @return bool true if the alias exists, false otherwise
|
||
|
*/
|
||
|
public function hasAlias($id)
|
||
|
{
|
||
|
return isset($this->aliasDefinitions[strtolower($id)]);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets all defined aliases.
|
||
|
*
|
||
|
* @return Alias[] An array of aliases
|
||
|
*/
|
||
|
public function getAliases()
|
||
|
{
|
||
|
return $this->aliasDefinitions;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets an alias.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
*
|
||
|
* @return Alias An Alias instance
|
||
|
*
|
||
|
* @throws InvalidArgumentException if the alias does not exist
|
||
|
*/
|
||
|
public function getAlias($id)
|
||
|
{
|
||
|
$id = strtolower($id);
|
||
|
|
||
|
if (!isset($this->aliasDefinitions[$id])) {
|
||
|
throw new InvalidArgumentException(sprintf('The service alias "%s" does not exist.', $id));
|
||
|
}
|
||
|
|
||
|
return $this->aliasDefinitions[$id];
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Registers a service definition.
|
||
|
*
|
||
|
* This methods allows for simple registration of service definition
|
||
|
* with a fluid interface.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
* @param string $class The service class
|
||
|
*
|
||
|
* @return Definition A Definition instance
|
||
|
*/
|
||
|
public function register($id, $class = null)
|
||
|
{
|
||
|
return $this->setDefinition($id, new Definition($class));
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Adds the service definitions.
|
||
|
*
|
||
|
* @param Definition[] $definitions An array of service definitions
|
||
|
*/
|
||
|
public function addDefinitions(array $definitions)
|
||
|
{
|
||
|
foreach ($definitions as $id => $definition) {
|
||
|
$this->setDefinition($id, $definition);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Sets the service definitions.
|
||
|
*
|
||
|
* @param Definition[] $definitions An array of service definitions
|
||
|
*/
|
||
|
public function setDefinitions(array $definitions)
|
||
|
{
|
||
|
$this->definitions = array();
|
||
|
$this->addDefinitions($definitions);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets all service definitions.
|
||
|
*
|
||
|
* @return Definition[] An array of Definition instances
|
||
|
*/
|
||
|
public function getDefinitions()
|
||
|
{
|
||
|
return $this->definitions;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Sets a service definition.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
* @param Definition $definition A Definition instance
|
||
|
*
|
||
|
* @return Definition the service definition
|
||
|
*
|
||
|
* @throws BadMethodCallException When this ContainerBuilder is frozen
|
||
|
*/
|
||
|
public function setDefinition($id, Definition $definition)
|
||
|
{
|
||
|
if ($this->isFrozen()) {
|
||
|
throw new BadMethodCallException('Adding definition to a frozen container is not allowed');
|
||
|
}
|
||
|
|
||
|
$id = strtolower($id);
|
||
|
|
||
|
unset($this->aliasDefinitions[$id]);
|
||
|
|
||
|
return $this->definitions[$id] = $definition;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns true if a service definition exists under the given identifier.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
*
|
||
|
* @return bool true if the service definition exists, false otherwise
|
||
|
*/
|
||
|
public function hasDefinition($id)
|
||
|
{
|
||
|
return isset($this->definitions[strtolower($id)]);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets a service definition.
|
||
|
*
|
||
|
* @param string $id The service identifier
|
||
|
*
|
||
|
* @return Definition A Definition instance
|
||
|
*
|
||
|
* @throws ServiceNotFoundException if the service definition does not exist
|
||
|
*/
|
||
|
public function getDefinition($id)
|
||
|
{
|
||
|
$id = strtolower($id);
|
||
|
|
||
|
if (!isset($this->definitions[$id])) {
|
||
|
throw new ServiceNotFoundException($id);
|
||
|
}
|
||
|
|
||
|
return $this->definitions[$id];
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets a service definition by id or alias.
|
||
|
*
|
||
|
* The method "unaliases" recursively to return a Definition instance.
|
||
|
*
|
||
|
* @param string $id The service identifier or alias
|
||
|
*
|
||
|
* @return Definition A Definition instance
|
||
|
*
|
||
|
* @throws ServiceNotFoundException if the service definition does not exist
|
||
|
*/
|
||
|
public function findDefinition($id)
|
||
|
{
|
||
|
$id = strtolower($id);
|
||
|
|
||
|
while (isset($this->aliasDefinitions[$id])) {
|
||
|
$id = (string) $this->aliasDefinitions[$id];
|
||
|
}
|
||
|
|
||
|
return $this->getDefinition($id);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Creates a service for a service definition.
|
||
|
*
|
||
|
* @param Definition $definition A service definition instance
|
||
|
* @param string $id The service identifier
|
||
|
* @param bool $tryProxy Whether to try proxying the service with a lazy proxy
|
||
|
*
|
||
|
* @return object The service described by the service definition
|
||
|
*
|
||
|
* @throws RuntimeException When the factory definition is incomplete
|
||
|
* @throws RuntimeException When the service is a synthetic service
|
||
|
* @throws InvalidArgumentException When configure callable is not callable
|
||
|
*/
|
||
|
private function createService(Definition $definition, $id, $tryProxy = true)
|
||
|
{
|
||
|
if ($definition instanceof DefinitionDecorator) {
|
||
|
throw new RuntimeException(sprintf('Constructing service "%s" from a parent definition is not supported at build time.', $id));
|
||
|
}
|
||
|
|
||
|
if ($definition->isSynthetic()) {
|
||
|
throw new RuntimeException(sprintf('You have requested a synthetic service ("%s"). The DIC does not know how to construct this service.', $id));
|
||
|
}
|
||
|
|
||
|
if ($definition->isDeprecated()) {
|
||
|
@trigger_error($definition->getDeprecationMessage($id), E_USER_DEPRECATED);
|
||
|
}
|
||
|
|
||
|
if ($tryProxy && $definition->isLazy()) {
|
||
|
$proxy = $this
|
||
|
->getProxyInstantiator()
|
||
|
->instantiateProxy(
|
||
|
$this,
|
||
|
$definition,
|
||
|
$id, function () use ($definition, $id) {
|
||
|
return $this->createService($definition, $id, false);
|
||
|
}
|
||
|
);
|
||
|
$this->shareService($definition, $proxy, $id);
|
||
|
|
||
|
return $proxy;
|
||
|
}
|
||
|
|
||
|
$parameterBag = $this->getParameterBag();
|
||
|
|
||
|
if (null !== $definition->getFile()) {
|
||
|
require_once $parameterBag->resolveValue($definition->getFile());
|
||
|
}
|
||
|
|
||
|
$arguments = $this->resolveServices($parameterBag->unescapeValue($parameterBag->resolveValue($definition->getArguments())));
|
||
|
|
||
|
if (null !== $factory = $definition->getFactory()) {
|
||
|
if (is_array($factory)) {
|
||
|
$factory = array($this->resolveServices($parameterBag->resolveValue($factory[0])), $factory[1]);
|
||
|
} elseif (!is_string($factory)) {
|
||
|
throw new RuntimeException(sprintf('Cannot create service "%s" because of invalid factory', $id));
|
||
|
}
|
||
|
|
||
|
$service = call_user_func_array($factory, $arguments);
|
||
|
|
||
|
if (!$definition->isDeprecated() && is_array($factory) && is_string($factory[0])) {
|
||
|
$r = new \ReflectionClass($factory[0]);
|
||
|
|
||
|
if (0 < strpos($r->getDocComment(), "\n * @deprecated ")) {
|
||
|
@trigger_error(sprintf('The "%s" service relies on the deprecated "%s" factory class. It should either be deprecated or its factory upgraded.', $id, $r->name), E_USER_DEPRECATED);
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
$r = new \ReflectionClass($parameterBag->resolveValue($definition->getClass()));
|
||
|
|
||
|
$service = null === $r->getConstructor() ? $r->newInstance() : $r->newInstanceArgs($arguments);
|
||
|
|
||
|
if (!$definition->isDeprecated() && 0 < strpos($r->getDocComment(), "\n * @deprecated ")) {
|
||
|
@trigger_error(sprintf('The "%s" service relies on the deprecated "%s" class. It should either be deprecated or its implementation upgraded.', $id, $r->name), E_USER_DEPRECATED);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ($tryProxy || !$definition->isLazy()) {
|
||
|
// share only if proxying failed, or if not a proxy
|
||
|
$this->shareService($definition, $service, $id);
|
||
|
}
|
||
|
|
||
|
$properties = $this->resolveServices($parameterBag->unescapeValue($parameterBag->resolveValue($definition->getProperties())));
|
||
|
foreach ($properties as $name => $value) {
|
||
|
$service->$name = $value;
|
||
|
}
|
||
|
|
||
|
foreach ($definition->getMethodCalls() as $call) {
|
||
|
$this->callMethod($service, $call);
|
||
|
}
|
||
|
|
||
|
if ($callable = $definition->getConfigurator()) {
|
||
|
if (is_array($callable)) {
|
||
|
$callable[0] = $parameterBag->resolveValue($callable[0]);
|
||
|
|
||
|
if ($callable[0] instanceof Reference) {
|
||
|
$callable[0] = $this->get((string) $callable[0], $callable[0]->getInvalidBehavior());
|
||
|
} elseif ($callable[0] instanceof Definition) {
|
||
|
$callable[0] = $this->createService($callable[0], null);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!is_callable($callable)) {
|
||
|
throw new InvalidArgumentException(sprintf('The configure callable for class "%s" is not a callable.', get_class($service)));
|
||
|
}
|
||
|
|
||
|
call_user_func($callable, $service);
|
||
|
}
|
||
|
|
||
|
return $service;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Replaces service references by the real service instance and evaluates expressions.
|
||
|
*
|
||
|
* @param mixed $value A value
|
||
|
*
|
||
|
* @return mixed The same value with all service references replaced by
|
||
|
* the real service instances and all expressions evaluated
|
||
|
*/
|
||
|
public function resolveServices($value)
|
||
|
{
|
||
|
if (is_array($value)) {
|
||
|
foreach ($value as $k => $v) {
|
||
|
$value[$k] = $this->resolveServices($v);
|
||
|
}
|
||
|
} elseif ($value instanceof Reference) {
|
||
|
$value = $this->get((string) $value, $value->getInvalidBehavior());
|
||
|
} elseif ($value instanceof Definition) {
|
||
|
$value = $this->createService($value, null);
|
||
|
} elseif ($value instanceof Expression) {
|
||
|
$value = $this->getExpressionLanguage()->evaluate($value, array('container' => $this));
|
||
|
}
|
||
|
|
||
|
return $value;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns service ids for a given tag.
|
||
|
*
|
||
|
* Example:
|
||
|
*
|
||
|
* $container->register('foo')->addTag('my.tag', array('hello' => 'world'));
|
||
|
*
|
||
|
* $serviceIds = $container->findTaggedServiceIds('my.tag');
|
||
|
* foreach ($serviceIds as $serviceId => $tags) {
|
||
|
* foreach ($tags as $tag) {
|
||
|
* echo $tag['hello'];
|
||
|
* }
|
||
|
* }
|
||
|
*
|
||
|
* @param string $name The tag name
|
||
|
*
|
||
|
* @return array An array of tags with the tagged service as key, holding a list of attribute arrays
|
||
|
*/
|
||
|
public function findTaggedServiceIds($name)
|
||
|
{
|
||
|
$this->usedTags[] = $name;
|
||
|
$tags = array();
|
||
|
foreach ($this->getDefinitions() as $id => $definition) {
|
||
|
if ($definition->hasTag($name)) {
|
||
|
$tags[$id] = $definition->getTag($name);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $tags;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns all tags the defined services use.
|
||
|
*
|
||
|
* @return array An array of tags
|
||
|
*/
|
||
|
public function findTags()
|
||
|
{
|
||
|
$tags = array();
|
||
|
foreach ($this->getDefinitions() as $id => $definition) {
|
||
|
$tags = array_merge(array_keys($definition->getTags()), $tags);
|
||
|
}
|
||
|
|
||
|
return array_unique($tags);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns all tags not queried by findTaggedServiceIds.
|
||
|
*
|
||
|
* @return string[] An array of tags
|
||
|
*/
|
||
|
public function findUnusedTags()
|
||
|
{
|
||
|
return array_values(array_diff($this->findTags(), $this->usedTags));
|
||
|
}
|
||
|
|
||
|
public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
|
||
|
{
|
||
|
$this->expressionLanguageProviders[] = $provider;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @return ExpressionFunctionProviderInterface[]
|
||
|
*/
|
||
|
public function getExpressionLanguageProviders()
|
||
|
{
|
||
|
return $this->expressionLanguageProviders;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Resolves env parameter placeholders in a string or an array.
|
||
|
*
|
||
|
* @param mixed $value The value to resolve
|
||
|
* @param string|null $format A sprintf() format to use as replacement for env placeholders or null to use the default parameter format
|
||
|
* @param array &$usedEnvs Env vars found while resolving are added to this array
|
||
|
*
|
||
|
* @return string The string with env parameters resolved
|
||
|
*/
|
||
|
public function resolveEnvPlaceholders($value, $format = null, array &$usedEnvs = null)
|
||
|
{
|
||
|
if (null === $format) {
|
||
|
$format = '%%env(%s)%%';
|
||
|
}
|
||
|
|
||
|
if (is_array($value)) {
|
||
|
$result = array();
|
||
|
foreach ($value as $k => $v) {
|
||
|
$result[$this->resolveEnvPlaceholders($k, $format, $usedEnvs)] = $this->resolveEnvPlaceholders($v, $format, $usedEnvs);
|
||
|
}
|
||
|
|
||
|
return $result;
|
||
|
}
|
||
|
|
||
|
if (!is_string($value)) {
|
||
|
return $value;
|
||
|
}
|
||
|
|
||
|
$bag = $this->getParameterBag();
|
||
|
$envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : $this->envPlaceholders;
|
||
|
|
||
|
foreach ($envPlaceholders as $env => $placeholders) {
|
||
|
foreach ($placeholders as $placeholder) {
|
||
|
if (false !== stripos($value, $placeholder)) {
|
||
|
$value = str_ireplace($placeholder, sprintf($format, $env), $value);
|
||
|
$usedEnvs[$env] = $env;
|
||
|
$this->envCounters[$env] = isset($this->envCounters[$env]) ? 1 + $this->envCounters[$env] : 1;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $value;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Get statistics about env usage.
|
||
|
*
|
||
|
* @return int[] The number of time each env vars has been resolved
|
||
|
*/
|
||
|
public function getEnvCounters()
|
||
|
{
|
||
|
$bag = $this->getParameterBag();
|
||
|
$envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : $this->envPlaceholders;
|
||
|
|
||
|
foreach ($envPlaceholders as $env => $placeholders) {
|
||
|
if (!isset($this->envCounters[$env])) {
|
||
|
$this->envCounters[$env] = 0;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $this->envCounters;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns the Service Conditionals.
|
||
|
*
|
||
|
* @param mixed $value An array of conditionals to return
|
||
|
*
|
||
|
* @return array An array of Service conditionals
|
||
|
*/
|
||
|
public static function getServiceConditionals($value)
|
||
|
{
|
||
|
$services = array();
|
||
|
|
||
|
if (is_array($value)) {
|
||
|
foreach ($value as $v) {
|
||
|
$services = array_unique(array_merge($services, self::getServiceConditionals($v)));
|
||
|
}
|
||
|
} elseif ($value instanceof Reference && $value->getInvalidBehavior() === ContainerInterface::IGNORE_ON_INVALID_REFERENCE) {
|
||
|
$services[] = (string) $value;
|
||
|
}
|
||
|
|
||
|
return $services;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Retrieves the currently set proxy instantiator or instantiates one.
|
||
|
*
|
||
|
* @return InstantiatorInterface
|
||
|
*/
|
||
|
private function getProxyInstantiator()
|
||
|
{
|
||
|
if (!$this->proxyInstantiator) {
|
||
|
$this->proxyInstantiator = new RealServiceInstantiator();
|
||
|
}
|
||
|
|
||
|
return $this->proxyInstantiator;
|
||
|
}
|
||
|
|
||
|
private function callMethod($service, $call)
|
||
|
{
|
||
|
$services = self::getServiceConditionals($call[1]);
|
||
|
|
||
|
foreach ($services as $s) {
|
||
|
if (!$this->has($s)) {
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
call_user_func_array(array($service, $call[0]), $this->resolveServices($this->getParameterBag()->unescapeValue($this->getParameterBag()->resolveValue($call[1]))));
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Shares a given service in the container.
|
||
|
*
|
||
|
* @param Definition $definition
|
||
|
* @param mixed $service
|
||
|
* @param string|null $id
|
||
|
*/
|
||
|
private function shareService(Definition $definition, $service, $id)
|
||
|
{
|
||
|
if (null !== $id && $definition->isShared()) {
|
||
|
$this->services[strtolower($id)] = $service;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
private function getExpressionLanguage()
|
||
|
{
|
||
|
if (null === $this->expressionLanguage) {
|
||
|
if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
|
||
|
throw new RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
|
||
|
}
|
||
|
$this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
|
||
|
}
|
||
|
|
||
|
return $this->expressionLanguage;
|
||
|
}
|
||
|
}
|