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<?php |
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namespace Tarantool\Mapper\Plugin; |
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use Tarantool\Mapper\Plugin; |
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use Tarantool\Mapper\Procedure as BaseProcedure; |
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use Exception; |
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class Procedure extends Plugin |
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{ |
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public function get($class) |
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{ |
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return $this->register($class); |
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} |
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public function invoke(BaseProcedure $procedure, $params) |
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{ |
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$name = $procedure->getName(); |
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$this->validatePresence($procedure); |
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$result = $this->mapper->getClient()->call($name, $params); |
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return $result->getData()[0]; |
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} |
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public function isRegistered($class) |
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{ |
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return !!$this->mapper->findOne('_procedure', ['name' => $class]); |
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} |
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public function register($class) |
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{ |
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if (!is_subclass_of($class, BaseProcedure::class)) { |
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throw new Exception("Procedure should extend ".BaseProcedure::class.' class'); |
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} |
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$this->initSchema(); |
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$procedure = new $class($this); |
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$this->validatePresence($procedure); |
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return $procedure; |
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} |
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private function validatePresence(BaseProcedure $procedure) |
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{ |
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$name = $procedure->getName(); |
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$exists = $this->mapper->getClient()->evaluate("return _G.$name ~= nil")->getData()[0]; |
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$instance = $this->mapper->findOrCreate('_procedure', [ |
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'name' => get_class($procedure) |
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]); |
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if ($instance->hash != md5($procedure->getBody()) || !$exists) { |
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$params = implode(', ', $procedure->getParams()); |
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$body = $procedure->getBody(); |
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$script = " |
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$name = function($params) $body end |
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box.schema.func.create('$name', {if_not_exists=true}) |
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"; |
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$this->mapper->getClient()->evaluate($script); |
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$instance->hash = md5($body); |
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$instance->save(); |
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} |
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} |
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private function initSchema() |
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{ |
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$this->mapper->getSchema()->once(__CLASS__, function ($mapper) { |
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$mapper->getSchema() |
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->createSpace('_procedure') |
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->addProperties([ |
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'name' => 'string', |
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'hash' => 'string', |
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]) |
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->addIndex([ |
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'fields' => ['name'], |
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'type' => 'hash', |
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]); |
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}); |
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} |
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} |
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tarantool-php /
mapper
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