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<?php
namespace Drupal\Core\Logger;
use Psr\Log\LoggerInterface;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;
/**
* Defines a factory for logging channels.
*/
class LoggerChannelFactory implements LoggerChannelFactoryInterface, ContainerAwareInterface {
use ContainerAwareTrait;
/**
* Array of all instantiated logger channels keyed by channel name.
*
* @var \Drupal\Core\Logger\LoggerChannelInterface[]
*/
protected $channels = [];
/**
* An array of arrays of \Psr\Log\LoggerInterface keyed by priority.
*
* @var array
*/
protected $loggers = [];
/**
* {@inheritdoc}
*/
public function get($channel) {
if (!isset($this->channels[$channel])) {
$instance = new LoggerChannel($channel);
// If we have a container set the request_stack and current_user services
// on the channel. It is up to the channel to determine if there is a
// current request.
if ($this->container) {
$instance->setRequestStack($this->container->get('request_stack'));
$instance->setCurrentUser($this->container->get('current_user'));
}
// Pass the loggers to the channel.
$instance->setLoggers($this->loggers);
$this->channels[$channel] = $instance;
}
return $this->channels[$channel];
}
/**
* {@inheritdoc}
*/
public function addLogger(LoggerInterface $logger, $priority = 0) {
// Store it so we can pass it to potential new logger instances.
$this->loggers[$priority][] = $logger;
// Add the logger to already instantiated channels.
foreach ($this->channels as $channel) {
$channel->addLogger($logger, $priority);
}
}
}