110 lines
3.6 KiB
Go
110 lines
3.6 KiB
Go
package storage
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import (
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"context"
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"errors"
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platform "github.com/influxdata/influxdb"
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"github.com/influxdata/influxdb/kit/tracing"
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)
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// BucketDeleter defines the behaviour of deleting a bucket.
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type BucketDeleter interface {
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DeleteBucket(context.Context, platform.ID, platform.ID) error
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}
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// BucketService wraps an existing platform.BucketService implementation.
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//
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// BucketService ensures that when a bucket is deleted, all stored data
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// associated with the bucket is either removed, or marked to be removed via a
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// future compaction.
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type BucketService struct {
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inner platform.BucketService
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engine BucketDeleter
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}
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// NewBucketService returns a new BucketService for the provided BucketDeleter,
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// which typically will be an Engine.
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func NewBucketService(s platform.BucketService, engine BucketDeleter) *BucketService {
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return &BucketService{
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inner: s,
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engine: engine,
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}
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}
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// FindBucketByID returns a single bucket by ID.
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func (s *BucketService) FindBucketByID(ctx context.Context, id platform.ID) (*platform.Bucket, error) {
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span, ctx := tracing.StartSpanFromContext(ctx)
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defer span.Finish()
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if s.inner == nil || s.engine == nil {
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return nil, errors.New("nil inner BucketService or Engine")
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}
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return s.inner.FindBucketByID(ctx, id)
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}
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// FindBucket returns the first bucket that matches filter.
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func (s *BucketService) FindBucket(ctx context.Context, filter platform.BucketFilter) (*platform.Bucket, error) {
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span, ctx := tracing.StartSpanFromContext(ctx)
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defer span.Finish()
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if s.inner == nil || s.engine == nil {
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return nil, errors.New("nil inner BucketService or Engine")
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}
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return s.inner.FindBucket(ctx, filter)
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}
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// FindBuckets returns a list of buckets that match filter and the total count of matching buckets.
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// Additional options provide pagination & sorting.
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func (s *BucketService) FindBuckets(ctx context.Context, filter platform.BucketFilter, opt ...platform.FindOptions) ([]*platform.Bucket, int, error) {
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span, ctx := tracing.StartSpanFromContext(ctx)
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defer span.Finish()
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if s.inner == nil || s.engine == nil {
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return nil, 0, errors.New("nil inner BucketService or Engine")
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}
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return s.inner.FindBuckets(ctx, filter, opt...)
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}
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// CreateBucket creates a new bucket and sets b.ID with the new identifier.
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func (s *BucketService) CreateBucket(ctx context.Context, b *platform.Bucket) error {
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span, ctx := tracing.StartSpanFromContext(ctx)
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defer span.Finish()
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if s.inner == nil || s.engine == nil {
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return errors.New("nil inner BucketService or Engine")
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}
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return s.inner.CreateBucket(ctx, b)
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}
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// UpdateBucket updates a single bucket with changeset.
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// Returns the new bucket state after update.
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func (s *BucketService) UpdateBucket(ctx context.Context, id platform.ID, upd platform.BucketUpdate) (*platform.Bucket, error) {
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span, ctx := tracing.StartSpanFromContext(ctx)
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defer span.Finish()
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if s.inner == nil || s.engine == nil {
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return nil, errors.New("nil inner BucketService or Engine")
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}
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return s.inner.UpdateBucket(ctx, id, upd)
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}
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// DeleteBucket removes a bucket by ID.
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func (s *BucketService) DeleteBucket(ctx context.Context, bucketID platform.ID) error {
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span, ctx := tracing.StartSpanFromContext(ctx)
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defer span.Finish()
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bucket, err := s.FindBucketByID(ctx, bucketID)
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if err != nil {
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return err
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}
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// The data is dropped first from the storage engine. If this fails for any
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// reason, then the bucket will still be available in the future to retrieve
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// the orgID, which is needed for the engine.
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if err := s.engine.DeleteBucket(ctx, bucket.OrgID, bucketID); err != nil {
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return err
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}
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return s.inner.DeleteBucket(ctx, bucketID)
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}
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