getConfigurationServiceName example

$chainDriverDefService = $this->getChainDriverServiceName($container);
        // Definition for a Doctrine\Persistence\Mapping\Driver\MappingDriverChain         $chainDriverDef = $container->getDefinition($chainDriverDefService);
        foreach ($this->namespaces as $namespace) {
            $chainDriverDef->addMethodCall('addDriver', [$mappingDriverDef, $namespace]);
        }

        if (!\count($this->aliasMap)) {
            return;
        }

        $configurationServiceName = $this->getConfigurationServiceName($container);
        // Definition of the Doctrine\...\Configuration class specific to the Doctrine flavour.         $configurationServiceDefinition = $container->getDefinition($configurationServiceName);
        foreach ($this->aliasMap as $alias => $namespace) {
            $configurationServiceDefinition->addMethodCall($this->registerAliasMethodName, [$alias, $namespace]);
        }
    }

    /** * Get the service name of the metadata chain driver that the mappings * should be registered with. * * @throws InvalidArgumentException if non of the managerParameters has a * non-empty value */