460 lines
11 KiB
PHP
460 lines
11 KiB
PHP
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<?php
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namespace Symfony\Components\DependencyInjection\Dumper;
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use Symfony\Components\DependencyInjection\Builder;
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use Symfony\Components\DependencyInjection\Container;
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use Symfony\Components\DependencyInjection\Reference;
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use Symfony\Components\DependencyInjection\Parameter;
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/*
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* This file is part of the symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* PhpDumper dumps a service container as a PHP class.
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*
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* @package symfony
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* @subpackage dependency_injection
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class PhpDumper extends Dumper
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{
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/**
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* Dumps the service container as a PHP class.
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*
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* Available options:
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*
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* * class: The class name
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* * base_class: The base class name
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*
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* @param array $options An array of options
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*
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* @return string A PHP class representing of the service container
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*/
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public function dump(array $options = array())
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{
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$options = array_merge(array(
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'class' => 'ProjectServiceContainer',
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'base_class' => 'Container',
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), $options);
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return
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$this->startClass($options['class'], $options['base_class']).
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$this->addConstructor().
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$this->addServices().
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$this->addDefaultParametersMethod().
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$this->endClass()
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;
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}
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protected function addServiceInclude($id, $definition)
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{
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if (null !== $definition->getFile())
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{
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return sprintf(" require_once %s;\n\n", $this->dumpValue($definition->getFile()));
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}
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}
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protected function addServiceShared($id, $definition)
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{
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if ($definition->isShared())
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{
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return <<<EOF
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if (isset(\$this->shared['$id'])) return \$this->shared['$id'];
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EOF;
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}
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}
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protected function addServiceReturn($id, $definition)
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{
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if ($definition->isShared())
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{
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return <<<EOF
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return \$this->shared['$id'] = \$instance;
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}
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EOF;
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}
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else
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{
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return <<<EOF
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return \$instance;
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}
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EOF;
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}
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}
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protected function addServiceInstance($id, $definition)
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{
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$class = $this->dumpValue($definition->getClass());
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$arguments = array();
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foreach ($definition->getArguments() as $value)
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{
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$arguments[] = $this->dumpValue($value);
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}
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if (null !== $definition->getConstructor())
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{
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return sprintf(" \$instance = call_user_func(array(%s, '%s')%s);\n", $class, $definition->getConstructor(), $arguments ? ', '.implode(', ', $arguments) : '');
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}
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else
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{
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if ($class != "'".$definition->getClass()."'")
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{
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return sprintf(" \$class = %s;\n \$instance = new \$class(%s);\n", $class, implode(', ', $arguments));
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}
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else
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{
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return sprintf(" \$instance = new %s(%s);\n", $definition->getClass(), implode(', ', $arguments));
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}
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}
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}
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protected function addServiceMethodCalls($id, $definition)
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{
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$calls = '';
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foreach ($definition->getMethodCalls() as $call)
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{
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$arguments = array();
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foreach ($call[1] as $value)
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{
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$arguments[] = $this->dumpValue($value);
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}
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$calls .= $this->wrapServiceConditionals($call[1], sprintf(" \$instance->%s(%s);\n", $call[0], implode(', ', $arguments)));
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}
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return $calls;
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}
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protected function addServiceConfigurator($id, $definition)
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{
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if (!$callable = $definition->getConfigurator())
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{
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return '';
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}
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if (is_array($callable))
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{
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if (is_object($callable[0]) && $callable[0] instanceof Reference)
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{
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return sprintf(" %s->%s(\$instance);\n", $this->getServiceCall((string) $callable[0]), $callable[1]);
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}
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else
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{
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return sprintf(" call_user_func(array(%s, '%s'), \$instance);\n", $this->dumpValue($callable[0]), $callable[1]);
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}
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}
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else
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{
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return sprintf(" %s(\$instance);\n", $callable);
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}
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}
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protected function addService($id, $definition)
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{
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$name = Container::camelize($id);
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$class = $definition->getClass();
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$type = 0 === strpos($class, '%') ? 'Object' : $class;
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$doc = '';
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if ($definition->isShared())
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{
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$doc = <<<EOF
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*
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* This service is shared.
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* This method always returns the same instance of the service.
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EOF;
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}
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$code = <<<EOF
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/**
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* Gets the '$id' service.$doc
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*
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* @return $type A $class instance.
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*/
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protected function get{$name}Service()
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{
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EOF;
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$code .=
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$this->addServiceInclude($id, $definition).
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$this->addServiceShared($id, $definition).
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$this->addServiceInstance($id, $definition).
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$this->addServiceMethodCalls($id, $definition).
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$this->addServiceConfigurator($id, $definition).
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$this->addServiceReturn($id, $definition)
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;
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return $code;
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}
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protected function addServiceAlias($alias, $id)
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{
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$name = Container::camelize($alias);
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$type = 'Object';
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if ($this->container->hasDefinition($id))
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{
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$class = $this->container->getDefinition($id)->getClass();
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$type = 0 === strpos($class, '%') ? 'Object' : $class;
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}
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return <<<EOF
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/**
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* Gets the $alias service alias.
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*
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* @return $type An instance of the $id service
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*/
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protected function get{$name}Service()
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{
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return {$this->getServiceCall($id)};
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}
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EOF;
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}
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protected function addServices()
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{
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$code = '';
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foreach ($this->container->getDefinitions() as $id => $definition)
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{
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$code .= $this->addService($id, $definition);
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}
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foreach ($this->container->getAliases() as $alias => $id)
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{
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$code .= $this->addServiceAlias($alias, $id);
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}
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return $code;
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}
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protected function startClass($class, $baseClass)
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{
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$properties = array();
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foreach ($this->container->getDefinitions() as $id => $definition)
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{
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$type = 0 === strpos($definition->getClass(), '%') ? 'Object' : $definition->getClass();
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$properties[] = sprintf(' * @property %s $%s', $type, $id);
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}
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foreach ($this->container->getAliases() as $alias => $id)
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{
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$type = 'Object';
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if ($this->container->hasDefinition($id))
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{
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$sclass = $this->container->getDefinition($id)->getClass();
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$type = 0 === strpos($sclass, '%') ? 'Object' : $sclass;
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}
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$properties[] = sprintf(' * @property %s $%s', $type, $alias);
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}
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$properties = implode("\n", $properties);
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if ($properties)
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{
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$properties = "\n *\n".$properties;
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}
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return <<<EOF
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<?php
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use Symfony\Components\DependencyInjection\Container;
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use Symfony\Components\DependencyInjection\Reference;
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use Symfony\Components\DependencyInjection\Parameter;
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/**
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* $class
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*
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* This class has been auto-generated
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* by the Symfony Dependency Injection Component.$properties
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*/
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class $class extends $baseClass
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{
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protected \$shared = array();
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EOF;
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}
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protected function addConstructor()
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{
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if (!$this->container->getParameters())
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{
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return '';
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}
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return <<<EOF
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/**
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* Constructor.
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*/
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public function __construct()
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{
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parent::__construct(\$this->getDefaultParameters());
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}
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EOF;
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}
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protected function addDefaultParametersMethod()
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{
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if (!$this->container->getParameters())
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{
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return '';
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}
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$parameters = $this->exportParameters($this->container->getParameters());
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return <<<EOF
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/**
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* Gets the default parameters.
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*
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* @return array An array of the default parameters
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*/
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protected function getDefaultParameters()
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{
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return $parameters;
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}
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EOF;
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}
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protected function exportParameters($parameters, $indent = 6)
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{
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$php = array();
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foreach ($parameters as $key => $value)
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{
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if (is_array($value))
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{
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$value = $this->exportParameters($value, $indent + 2);
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}
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elseif ($value instanceof Reference)
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{
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$value = sprintf("new Reference('%s')", $value);
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}
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else
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{
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$value = var_export($value, true);
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}
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$php[] = sprintf('%s%s => %s,', str_repeat(' ', $indent), var_export($key, true), $value);
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}
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return sprintf("array(\n%s\n%s)", implode("\n", $php), str_repeat(' ', $indent - 2));
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}
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protected function endClass()
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{
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return <<<EOF
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}
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EOF;
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}
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protected function wrapServiceConditionals($value, $code)
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{
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if (!$services = Builder::getServiceConditionals($value))
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{
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return $code;
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}
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$conditions = array();
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foreach ($services as $service)
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{
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$conditions[] = sprintf("\$this->hasService('%s')", $service);
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}
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// re-indent the wrapped code
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$code = implode("\n", array_map(function ($line) { return $line ? ' '.$line : $line; }, explode("\n", $code)));
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return sprintf(" if (%s)\n {\n%s }\n", implode(' && ', $conditions), $code);
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}
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protected function dumpValue($value)
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{
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if (is_array($value))
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{
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$code = array();
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foreach ($value as $k => $v)
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{
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$code[] = sprintf("%s => %s", $this->dumpValue($k), $this->dumpValue($v));
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}
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return sprintf("array(%s)", implode(', ', $code));
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}
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elseif (is_object($value) && $value instanceof Reference)
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{
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return $this->getServiceCall((string) $value, $value);
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}
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elseif (is_object($value) && $value instanceof Parameter)
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{
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return sprintf("\$this->getParameter('%s')", strtolower($value));
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}
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elseif (is_string($value))
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{
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if (preg_match('/^%([^%]+)%$/', $value, $match))
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{
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// we do this to deal with non string values (boolean, integer, ...)
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// the preg_replace_callback converts them to strings
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return sprintf("\$this->getParameter('%s')", strtolower($match[1]));
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}
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else
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{
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$replaceParameters = function ($match)
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{
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return sprintf("'.\$this->getParameter('%s').'", strtolower($match[2]));
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};
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$code = str_replace('%%', '%', preg_replace_callback('/(?<!%)(%)([^%]+)\1/', $replaceParameters, var_export($value, true)));
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// optimize string
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$code = preg_replace(array("/^''\./", "/\.''$/", "/\.''\./"), array('', '', '.'), $code);
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return $code;
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}
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}
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elseif (is_object($value) || is_resource($value))
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{
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throw new \RuntimeException('Unable to dump a service container if a parameter is an object or a resource.');
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}
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else
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{
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return var_export($value, true);
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}
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}
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protected function getServiceCall($id, Reference $reference = null)
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{
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if ('service_container' == $id)
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{
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return '$this';
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}
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if (null !== $reference && Container::EXCEPTION_ON_INVALID_REFERENCE !== $reference->getInvalidBehavior())
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{
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return sprintf('$this->getService(\'%s\', Container::NULL_ON_INVALID_REFERENCE)', $id);
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}
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else
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{
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return sprintf('$this->getService(\'%s\')', $id);
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}
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}
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}
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