presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/metadata/NodeSize.java/NodeSize/NodeSize
class NodeSize:    public NodeSize(String nodeIdentifier, long sizeInBytes)
    {
        this.nodeIdentifier = requireNonNull(nodeIdentifier, "nodeIdentifier is null");
        checkArgument(sizeInBytes >= 0, "sizeInBytes must be >= 0");
        this.sizeInBytes = sizeInBytes;
    }