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<?php |
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namespace Basis; |
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use Basis\Dispatcher; |
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use Exception; |
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use ReflectionClass; |
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use Tarantool\Mapper\Plugin\Spy; |
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use Tarantool\Mapper\Pool; |
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class Event |
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{ |
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use Toolkit; |
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public function getSubscription() |
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{ |
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$subscription = []; |
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foreach ($this->get(Filesystem::class)->listClasses('Listener') as $class) { |
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$reflection = new ReflectionClass($class); |
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if ($reflection->isAbstract()) { |
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continue; |
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} |
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foreach ($reflection->getStaticPropertyValue('events') as $event) { |
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if (!array_key_exists($event, $subscription)) { |
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$subscription[$event] = []; |
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} |
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$subscription[$event][] = substr($class, strlen('Listener\\')); |
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} |
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} |
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return $subscription; |
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} |
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public function fire(string $event, $context) |
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{ |
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$this->app->dispatch('event.fire', [ |
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'event' => $this->get(Service::class)->getName().'.'.$event, |
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'context' => $context, |
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]); |
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} |
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public function fireChangesPart(string $producer, int $fraction = 10) |
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{ |
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if (++$this->counter % $fraction === 0) { |
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return $this->fireChanges($producer); |
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} |
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return false; |
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} |
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public function hasChanges() |
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{ |
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$hasChanges = false; |
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$serviceName = $this->get(Service::class)->getName(); |
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$this->get(Pool::class)->get($serviceName); |
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foreach ($this->get(Pool::class)->getMappers() as $mapper) { |
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if ($mapper->getPlugin(Spy::class)->hasChanges()) { |
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$hasChanges = true; |
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} |
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} |
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return $hasChanges; |
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} |
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public function fireChanges(string $producer) |
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{ |
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$this->get(Pool::class)->get($this->get(Service::class)->getName()); |
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$dispatcher = $this->app->get(Dispatcher::class); |
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$changed = false; |
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foreach ($this->get(Pool::class)->getMappers() as $mapper) { |
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$spy = $mapper->getPlugin(Spy::class); |
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if ($spy->hasChanges()) { |
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// reduce changes list |
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$changes = $spy->getChanges(); |
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foreach ($changes as $action => $collection) { |
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foreach ($collection as $space => $entities) { |
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$event = $this->get(Service::class)->getName().'.'.$space.'.'.$action; |
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if (!$this->get(Service::class)->eventExists($event)) { |
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unset($collection[$space]); |
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} |
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} |
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if (!count($collection)) { |
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unset($changes->$action); |
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} |
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} |
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if (count(get_object_vars($changes))) { |
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$changed = true; |
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$data = $this->get(Converter::class)->toArray([ |
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'changes' => $changes, |
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'producer' => $producer, |
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'service' => $mapper->serviceName, |
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'context' => $this->get(Context::class), |
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]); |
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try { |
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// put changes to queue |
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$this->getQueue('event.changes')->put($data); |
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} catch (Exception $e) { |
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// use legacy https transport |
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// todo split data into chunks |
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$dispatcher->send('event.changes', $data); |
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} |
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} |
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$spy->reset(); |
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} |
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} |
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return $changed; |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: