128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
package bolt
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import (
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"github.com/boltdb/bolt"
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"github.com/influxdata/mrfusion"
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"github.com/influxdata/mrfusion/bolt/internal"
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"golang.org/x/net/context"
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)
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// Ensure ExplorationStore implements mrfusion.ExplorationStore.
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var _ mrfusion.ExplorationStore = &ExplorationStore{}
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var ExplorationBucket = []byte("Explorations")
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type ExplorationStore struct {
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client *Client
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}
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// Search the ExplorationStore for all explorations owned by userID.
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func (s *ExplorationStore) Query(ctx context.Context, uid mrfusion.UserID) ([]*mrfusion.Exploration, error) {
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var explorations []*mrfusion.Exploration
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if err := s.client.db.View(func(tx *bolt.Tx) error {
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if err := tx.Bucket(ExplorationBucket).ForEach(func(k, v []byte) error {
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var e mrfusion.Exploration
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if err := internal.UnmarshalExploration(v, &e); err != nil {
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return err
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} else if e.UserID != uid {
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return nil
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}
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explorations = append(explorations, &e)
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return nil
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}); err != nil {
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return err
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}
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return nil
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}); err != nil {
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return nil, err
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}
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return explorations, nil
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}
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// Create a new Exploration in the ExplorationStore.
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func (s *ExplorationStore) Add(ctx context.Context, e *mrfusion.Exploration) (*mrfusion.Exploration, error) {
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if err := s.client.db.Update(func(tx *bolt.Tx) error {
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b := tx.Bucket(ExplorationBucket)
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seq, err := b.NextSequence()
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if err != nil {
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return err
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}
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e.ID = mrfusion.ExplorationID(seq)
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e.CreatedAt = s.client.Now()
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e.UpdatedAt = e.CreatedAt
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if v, err := internal.MarshalExploration(e); err != nil {
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return err
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} else if err := b.Put(itob(int(e.ID)), v); err != nil {
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return err
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}
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return nil
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}); err != nil {
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return nil, err
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}
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return e, nil
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}
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// Delete the exploration from the ExplorationStore
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func (s *ExplorationStore) Delete(ctx context.Context, e *mrfusion.Exploration) error {
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if err := s.client.db.Update(func(tx *bolt.Tx) error {
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if err := tx.Bucket(ExplorationBucket).Delete(itob(int(e.ID))); err != nil {
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return err
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}
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return nil
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}); err != nil {
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return err
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}
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return nil
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}
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// Retrieve an exploration for an id exists.
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func (s *ExplorationStore) Get(ctx context.Context, id mrfusion.ExplorationID) (*mrfusion.Exploration, error) {
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var e mrfusion.Exploration
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if err := s.client.db.View(func(tx *bolt.Tx) error {
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if v := tx.Bucket(ExplorationBucket).Get(itob(int(id))); v == nil {
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return mrfusion.ErrExplorationNotFound
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} else if err := internal.UnmarshalExploration(v, &e); err != nil {
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return err
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}
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return nil
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}); err != nil {
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return nil, err
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}
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return &e, nil
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}
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// Update an exploration; will also update the `UpdatedAt` time.
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func (s *ExplorationStore) Update(ctx context.Context, e *mrfusion.Exploration) error {
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if err := s.client.db.Update(func(tx *bolt.Tx) error {
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// Retreive an existing exploration with the same exploration ID.
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var ee mrfusion.Exploration
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b := tx.Bucket(ExplorationBucket)
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if v := b.Get(itob(int(e.ID))); v == nil {
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return mrfusion.ErrExplorationNotFound
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} else if err := internal.UnmarshalExploration(v, &ee); err != nil {
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return err
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}
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ee.Name = e.Name
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ee.UserID = e.UserID
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ee.Data = e.Data
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ee.UpdatedAt = s.client.Now()
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if v, err := internal.MarshalExploration(&ee); err != nil {
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return err
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} else if err := b.Put(itob(int(ee.ID)), v); err != nil {
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return err
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}
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return nil
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}); err != nil {
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return err
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}
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return nil
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}
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