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<?php |
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namespace Basis; |
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use Basis\Procedure\JobQueue\Cleanup; |
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use Basis\Procedure\JobQueue\Take; |
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use Basis\Procedure\JobResult\Foreign; |
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use Exception; |
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use Tarantool\Mapper\Entity; |
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use Tarantool\Mapper\Plugin\Procedure; |
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use Tarantool\Mapper\Procedure\FindOrCreate; |
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use Tarantool\Mapper\Repository; |
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class Executor |
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{ |
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use Toolkit; |
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public function normalize(array $request): array |
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{ |
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if (!array_key_exists('job', $request) || !$request['job']) { |
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throw new Exception("No job defined"); |
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} |
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if (!array_key_exists('service', $request) || !$request['service']) { |
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if ($this->get(Runner::class)->hasJob($request['job'])) { |
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$request['service'] = $this->getServiceName(); |
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} else { |
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$request['service'] = explode('.', $request['job'])[0]; |
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} |
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} |
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if (!array_key_exists('params', $request)) { |
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$request['params'] = []; |
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} else { |
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$request['params'] = $this->get(Converter::class)->toArray($request['params']); |
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} |
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$context = $this->get(Context::class)->toArray(); |
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$jobContext = $this->findOrCreate('job_context', [ |
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'hash' => md5(json_encode($context)) |
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], [ |
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'hash' => md5(json_encode($context)), |
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'context' => $context, |
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]); |
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$request['context'] = $jobContext->id; |
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$request['hash'] = md5(json_encode([ |
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$request['service'], |
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$request['job'], |
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$request['params'], |
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])); |
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return $request; |
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} |
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public function initRequest($request) |
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{ |
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$request = $this->normalize($request); |
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$request['status'] = 'new'; |
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$params = [ |
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'status' => $request['status'], |
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'hash' => $request['hash'], |
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]; |
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return $this->findOrCreate('job_queue', $params, $request); |
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} |
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public function send(string $job, array $params = [], string $service = null) |
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{ |
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$this->initRequest(compact('job', 'params', 'service')); |
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} |
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public function dispatch(string $job, array $params = [], string $service = null) |
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{ |
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$recipient = $this->getServiceName(); |
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$request = compact('job', 'params', 'service', 'recipient'); |
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$request = $this->normalize($request); |
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$result = $this->findOne('job_result', [ |
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'service' => $this->getServiceName(), |
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'hash' => $request['hash'], |
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]); |
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if ($result) { |
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if ($result->expire && $result->expire < time()) { |
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$this->getMapper()->remove($result); |
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} else { |
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return $result->data; |
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} |
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} |
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$this->initRequest($request); |
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return $this->getResult($request['hash']); |
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} |
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public function process() |
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{ |
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$this->transferResult(); |
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return $this->processQueue(); |
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} |
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public function processQueue() |
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{ |
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$tuple = $this->get(Take::class)(); |
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if (!$tuple) { |
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return; |
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} |
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$request = $this->getRepository('job_queue')->getInstance($tuple); |
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if ($request->service != $this->getServiceName()) { |
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try { |
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return $this->transferRequest($request); |
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} catch (Exception $e) { |
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return $this->processRequest($request); |
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} |
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} |
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return $this->processRequest($request); |
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} |
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protected function transferRequest(Entity $request) |
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{ |
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$context = $request->getContext(); |
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$remoteContext = $this->findOrCreate("$request->service.job_context", [ |
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'hash' => $context->hash |
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], [ |
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'hash' => $context->hash, |
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'context' => $context->context, |
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]); |
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$template = $this->get(Converter::class)->toArray($request); |
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$template['context'] = $remoteContext->id; |
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$template['status'] = 'new'; |
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unset($template['id']); |
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$params = [ |
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'hash' => $template['hash'], |
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'status' => $template['status'], |
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]; |
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$this->findOrCreate("$request->service.job_queue", $params, $template); |
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$request->status = 'transfered'; |
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$request->save(); |
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return $request; |
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} |
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public function processRequest($request) |
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{ |
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$context = $this->get(Context::class); |
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$backup = $context->toArray(); |
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$context->reset($request->getContext()->context); |
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$runner = $this->get(Runner::class); |
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if ($request->service != $this->getServiceName()) { |
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$runner = $this->get(Dispatcher::class); |
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} |
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$result = $runner->dispatch($request->job, $request->params, $request->service); |
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$context->reset($backup); |
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if ($request->recipient) { |
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$this->findOrCreate('job_result', [ |
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'service' => $request->recipient, |
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'hash' => $request->hash, |
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], [ |
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'service' => $request->recipient, |
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'hash' => $request->hash, |
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'data' => $this->get(Converter::class)->toArray($result), |
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'expire' => property_exists($result, 'expire') ? $result->expire : 0, |
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]); |
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} |
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return $this->getMapper()->remove($request); |
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} |
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protected function transferResult() |
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{ |
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$remote = $this->get(Foreign::class)($this->getServiceName()); |
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if (count($remote)) { |
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$group = []; |
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foreach ($remote as $tuple) { |
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$result = $this->getRepository('job_result')->getInstance($tuple); |
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if (!array_key_exists($result->service, $group)) { |
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$group[$result->service] = []; |
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} |
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$group[$result->service][] = $result; |
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} |
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foreach ($group as $service => $results) { |
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foreach ($results as $result) { |
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$this->findOrCreate("$service.job_result", [ |
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'service' => $result->service, |
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'hash' => $result->hash, |
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], [ |
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'service' => $result->service, |
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'hash' => $result->hash, |
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'data' => $result->data, |
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'expire' => $result->expire, |
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]); |
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$this->getMapper()->remove($result); |
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} |
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$this->getRepository("$result->service.job_queue") |
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->getMapper() |
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->getPlugin(Procedure::class) |
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->get(Cleanup::class)($result->service); |
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} |
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} |
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} |
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public function getResult($hash) |
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{ |
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$result = $this->findOne('job_result', [ |
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'service' => $this->getServiceName(), |
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'hash' => $hash, |
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]); |
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if (!$result) { |
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if (!$this->processQueue()) { |
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$request = $this->findOne('job_queue', [ |
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'status' => 'transfered', |
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'hash' => $hash, |
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]); |
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if ($request && $request->service) { |
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$this->get(Dispatcher::class) |
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->dispatch('module.execute', [], $request->service); |
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} else { |
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usleep(50000); // 50 milliseconds sleep |
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} |
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} |
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$this->getRepository('job_result')->flushCache(); |
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return $this->getResult($hash); |
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} |
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return $this->get(Converter::class)->toObject($result->data); |
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} |
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public function getServiceName() |
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{ |
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return $this->get(Service::class)->getName(); |
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} |
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} |
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An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.
If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.