File size: 4,284 Bytes
b80fc11 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 |
package database
import (
"time"
_ "github.com/mattn/go-sqlite3"
)
type ServerMetric struct {
Timestamp string `json:"timestamp"`
CPU float64 `json:"cpu"`
CPUModel string `json:"cpuModel"`
CPUCores int32 `json:"cpuCores"`
CPUPhysicalCores int32 `json:"cpuPhysicalCores"`
CPUSpeed float64 `json:"cpuSpeed"`
OS string `json:"os"`
Distro string `json:"distro"`
Kernel string `json:"kernel"`
Arch string `json:"arch"`
MemUsed float64 `json:"memUsed"`
MemUsedGB float64 `json:"memUsedGB"`
MemTotal float64 `json:"memTotal"`
Uptime uint64 `json:"uptime"`
DiskUsed float64 `json:"diskUsed"`
TotalDisk float64 `json:"totalDisk"`
NetworkIn float64 `json:"networkIn"`
NetworkOut float64 `json:"networkOut"`
}
func (db *DB) SaveMetric(metric ServerMetric) error {
if metric.Timestamp == "" {
metric.Timestamp = time.Now().UTC().Format(time.RFC3339Nano)
}
_, err := db.Exec(`
INSERT INTO server_metrics (timestamp, cpu, cpu_model, cpu_cores, cpu_physical_cores, cpu_speed, os, distro, kernel, arch, mem_used, mem_used_gb, mem_total, uptime, disk_used, total_disk, network_in, network_out)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
`, metric.Timestamp, metric.CPU, metric.CPUModel, metric.CPUCores, metric.CPUPhysicalCores, metric.CPUSpeed, metric.OS, metric.Distro, metric.Kernel, metric.Arch, metric.MemUsed, metric.MemUsedGB, metric.MemTotal, metric.Uptime, metric.DiskUsed, metric.TotalDisk, metric.NetworkIn, metric.NetworkOut)
return err
}
func (db *DB) GetMetricsInRange(start, end time.Time) ([]ServerMetric, error) {
rows, err := db.Query(`
SELECT timestamp, cpu, cpu_model, cpu_cores, cpu_physical_cores, cpu_speed, os, distro, kernel, arch, mem_used, mem_used_gb, mem_total, uptime, disk_used, total_disk, network_in, network_out
FROM server_metrics
WHERE timestamp BETWEEN ? AND ?
ORDER BY timestamp ASC
`, start.UTC().Format(time.RFC3339Nano), end.UTC().Format(time.RFC3339Nano))
if err != nil {
return nil, err
}
defer rows.Close()
var metrics []ServerMetric
for rows.Next() {
var m ServerMetric
err := rows.Scan(&m.Timestamp, &m.CPU, &m.CPUModel, &m.CPUCores, &m.CPUPhysicalCores, &m.CPUSpeed, &m.OS, &m.Distro, &m.Kernel, &m.Arch, &m.MemUsed, &m.MemUsedGB, &m.MemTotal, &m.Uptime, &m.DiskUsed, &m.TotalDisk, &m.NetworkIn, &m.NetworkOut)
if err != nil {
return nil, err
}
metrics = append(metrics, m)
}
return metrics, nil
}
func (db *DB) GetLastNMetrics(n int) ([]ServerMetric, error) {
rows, err := db.Query(`
WITH recent_metrics AS (
SELECT timestamp, cpu, cpu_model, cpu_cores, cpu_physical_cores, cpu_speed, os, distro, kernel, arch, mem_used, mem_used_gb, mem_total, uptime, disk_used, total_disk, network_in, network_out
FROM server_metrics
ORDER BY timestamp DESC
LIMIT ?
)
SELECT * FROM recent_metrics
ORDER BY timestamp ASC
`, n)
if err != nil {
return nil, err
}
defer rows.Close()
var metrics []ServerMetric
for rows.Next() {
var m ServerMetric
err := rows.Scan(&m.Timestamp, &m.CPU, &m.CPUModel, &m.CPUCores, &m.CPUPhysicalCores, &m.CPUSpeed, &m.OS, &m.Distro, &m.Kernel, &m.Arch, &m.MemUsed, &m.MemUsedGB, &m.MemTotal, &m.Uptime, &m.DiskUsed, &m.TotalDisk, &m.NetworkIn, &m.NetworkOut)
if err != nil {
return nil, err
}
metrics = append(metrics, m)
}
return metrics, nil
}
func (db *DB) GetAllMetrics() ([]ServerMetric, error) {
rows, err := db.Query(`
SELECT timestamp, cpu, cpu_model, cpu_cores, cpu_physical_cores, cpu_speed, os, distro, kernel, arch, mem_used, mem_used_gb, mem_total, uptime, disk_used, total_disk, network_in, network_out
FROM server_metrics
ORDER BY timestamp ASC
`)
if err != nil {
return nil, err
}
defer rows.Close()
var metrics []ServerMetric
for rows.Next() {
var m ServerMetric
err := rows.Scan(&m.Timestamp, &m.CPU, &m.CPUModel, &m.CPUCores, &m.CPUPhysicalCores, &m.CPUSpeed, &m.OS, &m.Distro, &m.Kernel, &m.Arch, &m.MemUsed, &m.MemUsedGB, &m.MemTotal, &m.Uptime, &m.DiskUsed, &m.TotalDisk, &m.NetworkIn, &m.NetworkOut)
if err != nil {
return nil, err
}
metrics = append(metrics, m)
}
return metrics, nil
}
|