kekrozsak/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php

227 lines
8.5 KiB
PHP

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bundle\FrameworkBundle\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Output\Output;
use Symfony\Component\DependencyInjection\Alias;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Config\FileLocator;
/**
* A console command for retrieving information about services
*
* @author Ryan Weaver <ryan@thatsquality.com>
*/
class ContainerDebugCommand extends ContainerAwareCommand
{
/**
* @var ContainerBuilder
*/
protected $containerBuilder;
/**
* @see Command
*/
protected function configure()
{
$this
->setName('container:debug')
->setDefinition(array(
new InputArgument('name', InputArgument::OPTIONAL, 'A service name (foo)'),
new InputOption('show-private', null, InputOption::VALUE_NONE, 'Use to show public *and* private services'),
))
->setDescription('Displays current services for an application')
->setHelp(<<<EOF
The <info>%command.name%</info> command displays all configured <comment>public</comment> services:
<info>php %command.full_name%</info>
To get specific information about a service, specify its name:
<info>php %command.full_name% validator</info>
By default, private services are hidden. You can display all services by
using the --show-private flag:
<info>php %command.full_name% --show-private</info>
EOF
)
;
}
/**
* @see Command
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$name = $input->getArgument('name');
$this->containerBuilder = $this->getContainerBuilder();
$serviceIds = $this->containerBuilder->getServiceIds();
// sort so that it reads like an index of services
asort($serviceIds);
if ($name) {
$this->outputService($output, $name);
} else {
$this->outputServices($output, $serviceIds, $input->getOption('show-private'));
}
}
protected function outputServices(OutputInterface $output, $serviceIds, $showPrivate = false)
{
// set the label to specify public or public+private
if ($showPrivate) {
$label = '<comment>Public</comment> and <comment>private</comment> services';
} else {
$label = '<comment>Public</comment> services';
}
$output->writeln($this->getHelper('formatter')->formatSection('container', $label));
// loop through to get space needed and filter private services
$maxName = 4;
$maxScope = 6;
foreach ($serviceIds as $key => $serviceId) {
$definition = $this->resolveServiceDefinition($serviceId);
if ($definition instanceof Definition) {
// filter out private services unless shown explicitly
if (!$showPrivate && !$definition->isPublic()) {
unset($serviceIds[$key]);
continue;
}
if (strlen($definition->getScope()) > $maxScope) {
$maxScope = strlen($definition->getScope());
}
}
if (strlen($serviceId) > $maxName) {
$maxName = strlen($serviceId);
}
}
$format = '%-'.$maxName.'s %-'.$maxScope.'s %s';
// the title field needs extra space to make up for comment tags
$format1 = '%-'.($maxName + 19).'s %-'.($maxScope + 19).'s %s';
$output->writeln(sprintf($format1, '<comment>Service Id</comment>', '<comment>Scope</comment>', '<comment>Class Name</comment>'));
foreach ($serviceIds as $serviceId) {
$definition = $this->resolveServiceDefinition($serviceId);
if ($definition instanceof Definition) {
$output->writeln(sprintf($format, $serviceId, $definition->getScope(), $definition->getClass()));
} elseif ($definition instanceof Alias) {
$alias = $definition;
$output->writeln(sprintf($format, $serviceId, 'n/a', sprintf('<comment>alias for</comment> <info>%s</info>', (string) $alias)));
} else {
// we have no information (happens with "service_container")
$service = $definition;
$output->writeln(sprintf($format, $serviceId, '', get_class($service)));
}
}
}
/**
* Renders detailed service information about one service
*/
protected function outputService(OutputInterface $output, $serviceId)
{
$definition = $this->resolveServiceDefinition($serviceId);
$label = sprintf('Information for service <info>%s</info>', $serviceId);
$output->writeln($this->getHelper('formatter')->formatSection('container', $label));
$output->writeln('');
if ($definition instanceof Definition) {
$output->writeln(sprintf('<comment>Service Id</comment> %s', $serviceId));
$output->writeln(sprintf('<comment>Class</comment> %s', $definition->getClass()));
$tags = $definition->getTags() ? implode(', ', array_keys($definition->getTags())) : '-';
$output->writeln(sprintf('<comment>Tags</comment> %s', $tags));
$output->writeln(sprintf('<comment>Scope</comment> %s', $definition->getScope()));
$public = $definition->isPublic() ? 'yes' : 'no';
$output->writeln(sprintf('<comment>Public</comment> %s', $public));
$synthetic = $definition->isSynthetic() ? 'yes' : 'no';
$output->writeln(sprintf('<comment>Synthetic</comment> %s', $synthetic));
$file = $definition->getFile() ? $definition->getFile() : '-';
$output->writeln(sprintf('<comment>Required File</comment> %s', $file));
} elseif ($definition instanceof Alias) {
$alias = $definition;
$output->writeln(sprintf('This service is an alias for the service <info>%s</info>', (string) $alias));
} else {
// edge case (but true for "service_container", all we have is the service itself
$service = $definition;
$output->writeln(sprintf('<comment>Service Id</comment> %s', $serviceId));
$output->writeln(sprintf('<comment>Class</comment> %s', get_class($service)));
}
}
/**
* Loads the ContainerBuilder from the cache.
*
* @return ContainerBuilder
*/
protected function getContainerBuilder()
{
if (!$this->getApplication()->getKernel()->isDebug()) {
throw new \LogicException(sprintf('Debug information about the container is only available in debug mode.'));
}
if (!is_file($cachedFile = $this->getContainer()->getParameter('debug.container.dump'))) {
throw new \LogicException(sprintf('Debug information about the container could not be found. Please clear the cache and try again.'));
}
$container = new ContainerBuilder();
$loader = new XmlFileLoader($container, new FileLocator());
$loader->load($cachedFile);
return $container;
}
/**
* Given an array of service IDs, this returns the array of corresponding
* Definition and Alias objects that those ids represent.
*
* @param string $serviceId The service id to resolve
*
* @return \Symfony\Component\DependencyInjection\Definition|\Symfony\Component\DependencyInjection\Alias
*/
protected function resolveServiceDefinition($serviceId)
{
if ($this->containerBuilder->hasDefinition($serviceId)) {
return $this->containerBuilder->getDefinition($serviceId);
}
// Some service IDs don't have a Definition, they're simply an Alias
if ($this->containerBuilder->hasAlias($serviceId)) {
return $this->containerBuilder->getAlias($serviceId);
}
// the service has been injected in some special way, just return the service
return $this->containerBuilder->get($serviceId);
}
}