chronograf/kv/dashboards.go

131 lines
3.3 KiB
Go

package kv
import (
"context"
"strconv"
"github.com/influxdata/chronograf"
"github.com/influxdata/chronograf/kv/internal"
)
// Ensure dashboardsStore implements chronograf.DashboardsStore.
var _ chronograf.DashboardsStore = &dashboardsStore{}
// dashboardsStore is the bolt implementation of storing dashboards
type dashboardsStore struct {
client *Service
IDs chronograf.ID
}
// All returns all known dashboards
func (d *dashboardsStore) All(ctx context.Context) ([]chronograf.Dashboard, error) {
var srcs []chronograf.Dashboard
if err := d.client.kv.View(ctx, func(tx Tx) error {
if err := tx.Bucket(dashboardsBucket).ForEach(func(k, v []byte) error {
var src chronograf.Dashboard
if err := internal.UnmarshalDashboard(v, &src); err != nil {
return err
}
srcs = append(srcs, src)
return nil
}); err != nil {
return err
}
return nil
}); err != nil {
return nil, err
}
return srcs, nil
}
// Add creates a new Dashboard in the dashboardsStore
func (d *dashboardsStore) Add(ctx context.Context, src chronograf.Dashboard) (chronograf.Dashboard, error) {
if err := d.client.kv.Update(ctx, func(tx Tx) error {
b := tx.Bucket(dashboardsBucket)
id, err := b.NextSequence()
if err != nil {
return err
}
src.ID = chronograf.DashboardID(id)
strID := strconv.FormatUint(id, 10)
for i, cell := range src.Cells {
cid, err := d.IDs.Generate()
if err != nil {
return err
}
cell.ID = cid
src.Cells[i] = cell
}
v, err := internal.MarshalDashboard(src)
if err != nil {
return err
}
return b.Put([]byte(strID), v)
}); err != nil {
return chronograf.Dashboard{}, err
}
return src, nil
}
// Get returns a Dashboard if the id exists.
func (d *dashboardsStore) Get(ctx context.Context, id chronograf.DashboardID) (chronograf.Dashboard, error) {
var src chronograf.Dashboard
if err := d.client.kv.View(ctx, func(tx Tx) error {
strID := strconv.Itoa(int(id))
if v, err := tx.Bucket(dashboardsBucket).Get([]byte(strID)); v == nil || err != nil {
return chronograf.ErrDashboardNotFound
} else if err := internal.UnmarshalDashboard(v, &src); err != nil {
return err
}
return nil
}); err != nil {
return chronograf.Dashboard{}, err
}
return src, nil
}
// Delete the dashboard from dashboardsStore
func (d *dashboardsStore) Delete(ctx context.Context, dash chronograf.Dashboard) error {
return d.client.kv.Update(ctx, func(tx Tx) error {
return tx.Bucket(dashboardsBucket).Delete([]byte(strconv.Itoa(int(dash.ID))))
})
}
// Update the dashboard in dashboardsStore
func (d *dashboardsStore) Update(ctx context.Context, dash chronograf.Dashboard) error {
if err := d.client.kv.Update(ctx, func(tx Tx) error {
// Get an existing dashboard with the same ID.
b := tx.Bucket(dashboardsBucket)
strID := strconv.Itoa(int(dash.ID))
if v, err := b.Get([]byte(strID)); v == nil || err != nil {
return chronograf.ErrDashboardNotFound
}
for i, cell := range dash.Cells {
if cell.ID != "" {
continue
}
cid, err := d.IDs.Generate()
if err != nil {
return err
}
cell.ID = cid
dash.Cells[i] = cell
}
if v, err := internal.MarshalDashboard(dash); err != nil {
return err
} else if err := b.Put([]byte(strID), v); err != nil {
return err
}
return nil
}); err != nil {
return err
}
return nil
}