@Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(boostExpr);
        sb.append(dm).append(createdBy);
        sb.append(dm).append(createdTime);
        sb.append(dm).append(sortOrder);
        sb.append(dm).append(updatedBy);
        sb.append(dm).append(updatedTime);
        sb.append(dm).append(urlExpr);
        if (sb.length() > dm.length()) {

    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(elevateWordId);
        sb.append(dm).append(labelTypeId);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(createdAt);
        sb.append(dm).append(updatedAt);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(createdAt);
        sb.append(dm).append(docId);
        sb.append(dm).append(queryId);
        sb.append(dm).append(url);
        sb.append(dm).append(userInfoId);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");

    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(name);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

			setIndexL, strconv.Itoa(disk.SetIndex),
			driveIndexL, strconv.Itoa(disk.DiskIndex),
		}

		m.setDriveBasicMetrics(disk, labels)
		if dm, found := driveMetrics.ioStats[disk.DrivePath]; found {
			m.setDriveIOStatMetrics(dm, labels)
		}
		m.setDriveAPIMetrics(disk, labels)
	}

	m.Set(driveOfflineCount, float64(driveMetrics.offlineDrives))

func collectDriveMetrics(m madmin.RealtimeMetrics) {
	latestDriveStatsMu.Lock()
	for d, dm := range m.ByDisk {
		labels := map[string]string{"drive": d}
		latestStats, ok := latestDriveStats[d]
		if !ok {
			latestDriveStats[d] = dm.IOStats
			continue
		}
		updateDriveIOStats(dm.IOStats, latestStats, labels)
		latestDriveStats[d] = dm.IOStats
	}
	lastDriveStatsRefresh = time.Now().UTC()
	latestDriveStatsMu.Unlock()

    public String toString() {
        return getClass().getSimpleName() + ":" + doBuildColumnString(", ") + "@" + Integer.toHexString(hashCode());
    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override

                                new DependencyContainer(
                                        root.child(DEPENDENCY_MANAGEMENT)
                                                .flatMap(dm -> dm.child(DEPENDENCIES))
                                                .orElse(null),
                                        DEPENDENCY_MANAGEMENT))
                        .filter(container -> container.element != null),

				err = msgp.WrapError(err, "Object")
				return
			}
		case "ob":
			z.Objects, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "Objects")
				return
			}
		case "dm":
			z.DeleteMarkers, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "DeleteMarkers")
				return
			}
		case "obf":
			z.ObjectsFailed, err = dc.ReadInt64()
			if err != nil {