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<?php |
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namespace MyOnlineStore\Bundle\RabbitMqManagerBundle\Manager; |
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use MyOnlineStore\Bundle\RabbitMqManagerBundle\Services\Supervisor; |
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use Symfony\Component\Templating\EngineInterface; |
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class RabbitMqManager implements RabbitMqManagerInterface |
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{ |
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/** |
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* @var Supervisor |
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*/ |
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private $supervisor; |
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/** |
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* @var EngineInterface |
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*/ |
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private $templating; |
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/** |
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* @var array |
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*/ |
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private $config; |
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/** |
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* @var string |
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*/ |
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private $application; |
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/** |
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* @param Supervisor $supervisor |
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* @param EngineInterface $templating |
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* @param array $config |
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* @param string $application |
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*/ |
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public function __construct(Supervisor $supervisor, EngineInterface $templating, array $config, $application) |
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{ |
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$this->supervisor = $supervisor; |
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$this->templating = $templating; |
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$this->config = $config; |
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$this->application = $application; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function generate() |
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{ |
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// create directory structure |
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foreach (['worker', 'conf.d', 'logs'] as $directory) { |
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$path = sprintf('%s/%s/%s', $this->config['path'], $this->application, $directory); |
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if (!is_dir($path)) { |
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mkdir($path, 0755, true); |
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} |
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} |
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// get absolute (root)path |
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if (!$path = realpath(sprintf('%s/%s', $this->config['path'], $this->application))) { |
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throw new \RuntimeException(sprintf( |
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'path "%s/%s" does not exist.', |
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$this->config['path'], |
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$this->application |
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)); |
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} |
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// create the supervisord.conf configuration file |
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file_put_contents( |
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sprintf('%s/%s', $path, 'supervisord.conf'), |
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$this->templating->render( |
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'RabbitMqManagerBundle:Supervisor:supervisor.conf.twig', [ |
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'path' => $path, |
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] |
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) |
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); |
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// remove old configuration files |
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$this->cleanDir(sprintf('%s/%s', $path, 'conf.d')); |
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$this->cleanDir(sprintf('%s/%s', $path, 'worker')); |
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foreach (['consumers', 'rpc_servers'] as $type) { |
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foreach ($this->config[$type] as $name => $consumer) { |
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if (!isset($consumer['worker']['queue']['routing'])) { |
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$this->writeConfig( |
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sprintf('%s_%s', $type, $name), |
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$path, |
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$consumer |
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); |
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continue; |
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} |
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foreach ($consumer['worker']['queue']['routing'] as $index => $route) { |
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$this->writeConfig( |
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sprintf('%s_%s_%s', $type, $name, $index), |
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$path, |
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$consumer, |
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$route |
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); |
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} |
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} |
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} |
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} |
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/** |
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* @param string $name |
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* @param string $path |
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* @param array $consumer |
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* @param null $route |
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*/ |
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private function writeConfig($name, $path, array $consumer, $route = null) |
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{ |
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if ('cli-consumer' === $consumer['processor']) { |
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// write additional cli-consumer config |
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file_put_contents( |
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$consumerConfiguration = sprintf('%s/worker/%s.conf', $path, $name), |
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$this->templating->render('RabbitMqManagerBundle:Supervisor:consumer.conf.twig', [ |
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'path' => $path, |
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'routing_key' => $route, |
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'consumer' => $consumer, |
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]) |
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); |
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$content = $this->templating->render('RabbitMqManagerBundle:Supervisor/processor:cli-consumer.conf.twig', [ |
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'path' => $path, |
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'configuration' => $consumerConfiguration, |
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'consumer' => $consumer, |
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]); |
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} else { |
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$consumer['command']['arguments'][] = sprintf('--messages=%s', $consumer['messages']); |
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if (null !== $route) { |
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$consumer['command']['arguments'][] = sprintf('--route=%s', $route); |
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} |
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$content = $this->templating->render('RabbitMqManagerBundle:Supervisor/processor:bundle.conf.twig', [ |
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'path' => $path, |
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'consumer' => $consumer, |
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]); |
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} |
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file_put_contents( |
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sprintf('%s/conf.d/%s.conf', $path, $name), |
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$content |
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); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function stop() |
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{ |
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$this->kill('', true); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function start() |
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{ |
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$this->supervisor->run(); |
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$this->supervisor->reloadAndUpdate(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function hup() |
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{ |
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$this->kill('HUP'); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function kill($signal = '', $waitForProcessToDisappear = false) |
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{ |
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$pid = $this->getSupervisorPid(); |
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if (!empty($pid) && $this->isProcessRunning($pid)) { |
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if (!empty($signal)) { |
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$signal = sprintf('-%s', $signal); |
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} |
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$command = sprintf('kill %s %d', $signal, $pid); |
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passthru($command); |
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if ($waitForProcessToDisappear) { |
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$this->wait(); |
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} |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function wait() |
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{ |
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$pid = $this->getSupervisorPid(); |
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if (!empty($pid)) { |
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while ($this->isProcessRunning($pid)) { |
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sleep(1); |
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} |
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} |
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} |
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/** |
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* Check if a process with the given pid is running |
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* |
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* @param int $pid |
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* @return bool |
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*/ |
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private function isProcessRunning($pid) { |
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$state = array(); |
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exec(sprintf('ps %d', $pid), $state); |
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/* |
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* ps will return at least one row, the column labels. |
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* If the process is running ps will return a second row with its status. |
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*/ |
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return 1 < count($state); |
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} |
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/** |
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* Determines the supervisord process id |
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* |
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* @return null|int |
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*/ |
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private function getSupervisorPid() { |
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$pidPath = sprintf('%s/%s/%s', realpath($this->config['path']), $this->application, 'supervisord.pid'); |
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$pid = null; |
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if (is_file($pidPath) && is_readable($pidPath)) { |
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$pid = (int)file_get_contents($pidPath); |
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} |
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return $pid; |
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} |
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/** |
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* @param string $path |
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*/ |
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private function cleanDir($path) |
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{ |
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/** @var \SplFileInfo $item */ |
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foreach (new \DirectoryIterator($path) as $item) { |
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if ($item->isDir()) { |
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continue; |
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} |
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if ('conf' !== $item->getExtension()) { |
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continue; |
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} |
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unlink($item->getRealPath()); |
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} |
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} |
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} |
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MyOnlineStore /
rabbitmq-manager-bundle
