79 lines
2 KiB
PHP
79 lines
2 KiB
PHP
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<?php
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/**
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* @file
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* Contains \Drupal\Component\ProxyBuilder\ProxyDumper.
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*/
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namespace Drupal\Component\ProxyBuilder;
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use Symfony\Component\DependencyInjection\Definition;
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use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface;
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/**
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* Dumps the proxy service into the dumped PHP container file.
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*/
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class ProxyDumper implements DumperInterface {
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/**
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* Keeps track of already existing proxy classes.
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*
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* @var array
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*/
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protected $buildClasses = [];
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/**
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* The proxy builder.
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*
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* @var \Drupal\Component\ProxyBuilder\ProxyBuilder
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*/
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protected $builder;
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public function __construct(ProxyBuilder $builder) {
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$this->builder = $builder;
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}
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/**
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* {@inheritdoc}
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*/
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public function isProxyCandidate(Definition $definition) {
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return $definition->isLazy() && ($class = $definition->getClass()) && class_exists($class);
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}
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/**
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* {@inheritdoc}
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*/
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public function getProxyFactoryCode(Definition $definition, $id) {
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// Note: the specific get method is called initially with $lazyLoad=TRUE;
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// When you want to retrieve the actual service, the code generated in
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// ProxyBuilder calls the method with lazy loading disabled.
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$output = <<<'EOS'
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if ($lazyLoad) {
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return $this->services['{{ id }}'] = new {{ class_name }}($this, '{{ id }}');
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}
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EOS;
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$output = str_replace('{{ id }}', $id, $output);
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$output = str_replace('{{ class_name }}', $this->builder->buildProxyClassName($definition->getClass()), $output);
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return $output;
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}
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/**
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* {@inheritdoc}
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*/
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public function getProxyCode(Definition $definition) {
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// Maybe the same class is used in different services, which are both marked
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// as lazy (just think about 2 database connections).
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// In those cases we should not generate proxy code the second time.
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if (!isset($this->buildClasses[$definition->getClass()])) {
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$this->buildClasses[$definition->getClass()] = TRUE;
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return $this->builder->build($definition->getClass());
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}
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else {
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return '';
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}
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}
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}
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