presto-tpch/src/main/java/io/prestosql/plugin/tpch/TpchNodePartitioningProvider.java/TpchNodePartitioningProvider/TpchNodePartitioningProvider
class TpchNodePartitioningProvider:    public TpchNodePartitioningProvider(NodeManager nodeManager, int splitsPerNode)
    {
        this.nodeManager = nodeManager;
        checkArgument(splitsPerNode > 0, "splitsPerNode must be at least 1");
        this.splitsPerNode = splitsPerNode;
    }