presto-main/src/main/java/io/prestosql/execution/scheduler/TopologyAwareNodeSelectorConfig.java/TopologyAwareNodeSelectorConfig/setLocationSegmentNames
class TopologyAwareNodeSelectorConfig:    @Config("node-scheduler.network-topology.segments")
    public TopologyAwareNodeSelectorConfig setLocationSegmentNames(String locationSegmentNames)
    {
        this.locationSegmentNames = Splitter.on(",")
                .trimResults()
                .omitEmptyStrings()
                .splitToList(locationSegmentNames);
        return this;
    }