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<?php |
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namespace Jalle19\StatusManager\Manager; |
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use Jalle19\StatusManager\Configuration\Instance; |
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use Jalle19\StatusManager\Event\ConnectionSeenEvent; |
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use Jalle19\StatusManager\Event\Events; |
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use Jalle19\StatusManager\Event\InputSeenEvent; |
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use Jalle19\StatusManager\Event\InstanceStatusCollectionRequestEvent; |
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use Jalle19\StatusManager\Event\InstanceSeenEvent; |
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use Jalle19\StatusManager\Event\InstanceStateEvent; |
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use Jalle19\StatusManager\Event\InstanceStatusUpdatesEvent; |
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use Jalle19\StatusManager\Event\SubscriptionSeenEvent; |
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use Jalle19\StatusManager\Event\SubscriptionStateChangeEvent; |
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use Jalle19\StatusManager\Instance\InstanceStatus; |
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use Jalle19\StatusManager\Instance\InstanceStatusCollection; |
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use Jalle19\StatusManager\Subscription\StateChangeParser; |
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use Jalle19\tvheadend\exception\RequestFailedException; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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/** |
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* Class StatusManager |
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* @package Jalle19\StatusManager\Manager |
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* @copyright Copyright © Sam Stenvall 2015- |
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* @license https://www.gnu.org/licenses/gpl.html The GNU General Public License v2.0 |
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*/ |
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class StatusManager extends AbstractManager implements EventSubscriberInterface |
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{ |
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/** |
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* @inheritdoc |
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*/ |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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Events::MAIN_LOOP_STARTING => 'onMainLoopStarted', |
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Events::MAIN_LOOP_TICK => 'onMainLoopTick', |
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]; |
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} |
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/** |
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* Called right before the main loop is started |
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*/ |
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public function onMainLoopStarted() |
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{ |
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// Log information about the database |
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$this->logger->notice('Using database at {databasePath}', [ |
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'databasePath' => $this->configuration->getDatabasePath(), |
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]); |
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// Log information about the configured instances |
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$instances = $this->configuration->getInstances(); |
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$this->logger->notice('Managing {instances} instances:', [ |
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'instances' => count($instances), |
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]); |
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foreach ($instances as $instance) |
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{ |
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$this->logger->notice(' {name} ({address}:{port})', [ |
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'name' => $instance->getName(), |
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'address' => $instance->getInstance()->getHostname(), |
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'port' => $instance->getInstance()->getPort(), |
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]); |
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$this->eventDispatcher->dispatch(Events::INSTANCE_SEEN, new InstanceSeenEvent($instance)); |
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} |
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} |
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/** |
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* Called periodically by the event loop |
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*/ |
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public function onMainLoopTick() |
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{ |
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/* @var InstanceStatusCollectionRequestEvent $event */ |
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$event = $this->eventDispatcher->dispatch(Events::INSTANCE_STATUS_COLLECTION_REQUEST, |
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new InstanceStatusCollectionRequestEvent()); |
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$statusCollection = $this->getStatusMessages($event->getInstanceStatusCollection()); |
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foreach ($statusCollection->getInstanceStatuses() as $instanceStatus) |
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$this->handleInstanceStatus($instanceStatus); |
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$this->eventDispatcher->dispatch(Events::INSTANCE_STATUS_UPDATES, |
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new InstanceStatusUpdatesEvent($statusCollection)); |
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} |
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/** |
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* @param InstanceStatus $instanceStatus |
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*/ |
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private function handleInstanceStatus(InstanceStatus $instanceStatus) |
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{ |
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$instanceName = $instanceStatus->getInstanceName(); |
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$this->logger->debug('Got status updates from {instanceName}', [ |
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'instanceName' => $instanceName, |
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]); |
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// Persist connections |
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foreach ($instanceStatus->getConnections() as $connection) |
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{ |
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$this->eventDispatcher->dispatch(Events::CONNECTION_SEEN, |
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new ConnectionSeenEvent($instanceName, $connection)); |
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} |
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// Persist inputs |
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foreach ($instanceStatus->getInputs() as $input) |
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$this->eventDispatcher->dispatch(Events::INPUT_SEEN, |
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new InputSeenEvent($instanceName, $instanceStatus, $input)); |
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// Persist running subscriptions |
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foreach ($instanceStatus->getSubscriptions() as $subscription) |
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{ |
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$this->eventDispatcher->dispatch(Events::SUBSCRIPTION_SEEN, |
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new SubscriptionSeenEvent($instanceName, $instanceStatus, $subscription)); |
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} |
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// Handle subscription state changes |
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foreach ($instanceStatus->getSubscriptionStateChanges() as $subscriptionStateChange) |
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{ |
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$this->eventDispatcher->dispatch(Events::SUBSCRIPTION_STATE_CHANGE, |
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new SubscriptionStateChangeEvent($instanceName, $subscriptionStateChange)); |
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} |
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} |
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/** |
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* Retrieves and returns all status messages for the configured |
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* instances |
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* |
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* @param \SplObjectStorage $instances the instances and their state |
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* |
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* @return InstanceStatusCollection |
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*/ |
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private function getStatusMessages($instances) |
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{ |
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$collection = new InstanceStatusCollection(); |
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foreach ($instances as $instance) |
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{ |
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/* @var Instance $instance */ |
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$tvheadend = $instance->getInstance(); |
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$instanceName = $instance->getName(); |
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$instanceState = $instances[$instance]; |
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// Collect statuses from currently reachable instances |
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if ($instanceState->isReachable()) |
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{ |
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try |
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{ |
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$collection->add(new InstanceStatus( |
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$instanceName, |
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$tvheadend->getNetworks(), |
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$tvheadend->getMultiplexes(), |
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$tvheadend->getInputStatus(), |
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$tvheadend->getSubscriptionStatus(), |
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$tvheadend->getConnectionStatus(), |
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StateChangeParser::parseStateChanges($tvheadend->getLogMessages()))); |
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$this->eventDispatcher->dispatch(Events::INSTANCE_STATE_REACHABLE, |
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new InstanceStateEvent($instance)); |
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} |
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catch (\Exception $e) |
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{ |
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if ($e instanceof RequestFailedException) |
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{ |
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// Check for authentication errors |
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$statusCode = $e->getResponse()->getStatusCode(); |
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if ($statusCode >= 400 && $statusCode < 500) |
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{ |
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$this->logger->error('Authentication/authorization failed when connecting to {instanceName} (HTTP {statusCode})', |
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[ |
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'instanceName' => $instanceName, |
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'statusCode' => $e->getResponse()->getStatusCode(), |
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]); |
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} |
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} |
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$this->eventDispatcher->dispatch(Events::INSTANCE_STATE_UNREACHABLE, |
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new InstanceStateEvent($instance)); |
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} |
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} |
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else |
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{ |
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$this->eventDispatcher->dispatch(Events::INSTANCE_STATE_MAYBE_REACHABLE, |
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new InstanceStateEvent($instance)); |
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} |
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} |
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return $collection; |
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} |
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} |
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Jalle19 /
tvheadend-status-manager
