presto-main/src/main/java/io/prestosql/operator/PipelineStatus.java/PipelineStatus/PipelineStatus
class PipelineStatus:    public PipelineStatus(int queuedDrivers, int runningDrivers, int blockedDrivers, int queuedPartitionedDrivers, int runningPartitionedDrivers)
    {
        this.queuedDrivers = queuedDrivers;
        this.runningDrivers = runningDrivers;
        this.blockedDrivers = blockedDrivers;
        this.queuedPartitionedDrivers = queuedPartitionedDrivers;
        this.runningPartitionedDrivers = runningPartitionedDrivers;
    }