portainer/api/bolt/endpoint/endpoint.go

146 lines
3.7 KiB
Go

package endpoint
import (
"github.com/boltdb/bolt"
portainer "github.com/portainer/portainer/api"
"github.com/portainer/portainer/api/bolt/internal"
)
const (
// BucketName represents the name of the bucket where this service stores data.
BucketName = "endpoints"
)
// Service represents a service for managing endpoint data.
type Service struct {
connection *internal.DbConnection
}
// NewService creates a new instance of a service.
func NewService(connection *internal.DbConnection) (*Service, error) {
err := internal.CreateBucket(connection, BucketName)
if err != nil {
return nil, err
}
return &Service{
connection: connection,
}, nil
}
// Endpoint returns an endpoint by ID.
func (service *Service) Endpoint(ID portainer.EndpointID) (*portainer.Endpoint, error) {
var endpoint portainer.Endpoint
identifier := internal.Itob(int(ID))
err := internal.GetObject(service.connection, BucketName, identifier, &endpoint)
if err != nil {
return nil, err
}
return &endpoint, nil
}
// UpdateEndpoint updates an endpoint.
func (service *Service) UpdateEndpoint(ID portainer.EndpointID, endpoint *portainer.Endpoint) error {
identifier := internal.Itob(int(ID))
return internal.UpdateObject(service.connection, BucketName, identifier, endpoint)
}
// DeleteEndpoint deletes an endpoint.
func (service *Service) DeleteEndpoint(ID portainer.EndpointID) error {
identifier := internal.Itob(int(ID))
return internal.DeleteObject(service.connection, BucketName, identifier)
}
// Endpoints return an array containing all the endpoints.
func (service *Service) Endpoints() ([]portainer.Endpoint, error) {
var endpoints = make([]portainer.Endpoint, 0)
err := service.connection.View(func(tx *bolt.Tx) error {
bucket := tx.Bucket([]byte(BucketName))
cursor := bucket.Cursor()
for k, v := cursor.First(); k != nil; k, v = cursor.Next() {
var endpoint portainer.Endpoint
err := internal.UnmarshalObjectWithJsoniter(v, &endpoint)
if err != nil {
return err
}
endpoints = append(endpoints, endpoint)
}
return nil
})
return endpoints, err
}
// CreateEndpoint assign an ID to a new endpoint and saves it.
func (service *Service) CreateEndpoint(endpoint *portainer.Endpoint) error {
return service.connection.Update(func(tx *bolt.Tx) error {
bucket := tx.Bucket([]byte(BucketName))
// We manually manage sequences for endpoints
err := bucket.SetSequence(uint64(endpoint.ID))
if err != nil {
return err
}
data, err := internal.MarshalObject(endpoint)
if err != nil {
return err
}
return bucket.Put(internal.Itob(int(endpoint.ID)), data)
})
}
// GetNextIdentifier returns the next identifier for an endpoint.
func (service *Service) GetNextIdentifier() int {
return internal.GetNextIdentifier(service.connection, BucketName)
}
// Synchronize creates, updates and deletes endpoints inside a single transaction.
func (service *Service) Synchronize(toCreate, toUpdate, toDelete []*portainer.Endpoint) error {
return service.connection.Update(func(tx *bolt.Tx) error {
bucket := tx.Bucket([]byte(BucketName))
for _, endpoint := range toCreate {
id, _ := bucket.NextSequence()
endpoint.ID = portainer.EndpointID(id)
data, err := internal.MarshalObject(endpoint)
if err != nil {
return err
}
err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
if err != nil {
return err
}
}
for _, endpoint := range toUpdate {
data, err := internal.MarshalObject(endpoint)
if err != nil {
return err
}
err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
if err != nil {
return err
}
}
for _, endpoint := range toDelete {
err := bucket.Delete(internal.Itob(int(endpoint.ID)))
if err != nil {
return err
}
}
return nil
})
}