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