AssertEqual(t, ok, true)
	AssertEqual(t, len(conn.Stmts), 2)
	for _, stmt := range conn.Stmts {
		if stmt == nil {
			t.Fatalf("stmt cannot bee nil")
		}
	}

	AssertEqual(t, sqlDB.Stats().InUse, 0)
}

func TestPreparedStmtInTransaction(t *testing.T) {
	user := User{Name: "jinzhu"}

	if err := DB.Transaction(func(tx *gorm.DB) error {
		tx.Session(&gorm.Session{PrepareStmt: true}).Create(&user)

        regA(builder);
        return builder;
    }

    protected StatsAggregationBuilder regStatsA(String name, String field) {
        StatsAggregationBuilder builder = AggregationBuilders.stats(name).field(field);
        regA(builder);
        return builder;
    }

    protected PercentilesAggregationBuilder regPercentilesA(String name, String field) {

        regA(builder);
        return builder;
    }

    protected StatsAggregationBuilder regStatsA(String name, String field) {
        StatsAggregationBuilder builder = AggregationBuilders.stats(name).field(field);
        regA(builder);
        return builder;
    }

    protected PercentilesAggregationBuilder regPercentilesA(String name, String field) {

// handlers.
//
// It is set per-"handler function registration" in the router to allow for
// behavior modification via flags.
//
// This middleware always calls `collectAPIStats` to collect API stats.
//
// The passed in handler function must be a method of `objectAPIHandlers` for
// the name displayed in logs and trace to be accurate. The name is extracted
// via reflection.
//

		}
	}
}

// State returns the current connection status.
func (c *Connection) State() State {
	return State(atomic.LoadUint32((*uint32)(&c.state)))
}

// Stats returns the current connection stats.
func (c *Connection) Stats() madmin.RPCMetrics {
	conn := 0
	if c.State() == StateConnected {
		conn++
	}
	var lastConn time.Time
	if t := c.lastConnect.Load(); t != nil {
		lastConn = *t

func loadAPIRequestsHTTPMetrics(ctx context.Context, m MetricValues, _ *metricsCache) error {
	// Collect node level S3 HTTP metrics.
	httpStats := globalHTTPStats.toServerHTTPStats(false)

	// Currently we only collect S3 API related stats, so we set the "type"
	// label to "s3".

	m.Set(apiRejectedAuthTotal, float64(httpStats.TotalS3RejectedAuth), "type", "s3")
	m.Set(apiRejectedTimestampTotal, float64(httpStats.TotalS3RejectedTime), "type", "s3")

		kmsLogIf(ctx, err, "failed to fetch KMS status information")
		return []madmin.KMS{}
	}

	stats := make([]madmin.KMS, 0, len(stat.Endpoints))
	for endpoint, state := range stat.Endpoints {
		stats = append(stats, madmin.KMS{
			Status:   string(state),
			Endpoint: endpoint,
		})
	}
	return stats
}

func targetStatus(ctx context.Context, h logger.Target) madmin.Status {
	if h.IsOnline(ctx) {

	// BucketStats map of bucket to slice of deployment IDs with stats. This is populated only if there are
	// mismatches or if a specific bucket's stats are requested
	BucketStats map[string]map[string]srBucketStatsSummary
	// PolicyStats map of policy to slice of deployment IDs with stats. This is populated only if there are
	// mismatches or if a specific bucket's stats are requested
	PolicyStats map[string]map[string]srPolicyStatsSummary

	}
	l.removeEntry(resource, args, &lri)
	return reply, nil
}

type lockStats struct {
	Total  int
	Writes int
	Reads  int
}

func (l *localLocker) stats() lockStats {
	l.mutex.Lock()
	defer l.mutex.Unlock()

	st := lockStats{Total: len(l.lockMap)}
	for _, v := range l.lockMap {
		if len(v) == 0 {
			continue
		}
		entry := v[0]
		if entry.Writer {

	}
}

// ConnStats returns the connection statistics for all connections.
func (m *Manager) ConnStats() madmin.RPCMetrics {
	var res madmin.RPCMetrics
	for _, c := range m.targets {
		t := c.Stats()
		res.Merge(&t)
	}
	return res