86 lines
2.4 KiB
Go
86 lines
2.4 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package live
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import (
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"context"
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"strconv"
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"go.uber.org/zap"
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"storj.io/common/uuid"
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"storj.io/storj/storage"
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"storj.io/storj/storage/redis"
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)
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type redisLiveAccounting struct {
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log *zap.Logger
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client *redis.Client
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}
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func newRedisLiveAccounting(log *zap.Logger, address string) (*redisLiveAccounting, error) {
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client, err := redis.NewClientFrom(address)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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return &redisLiveAccounting{
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log: log,
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client: client,
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}, nil
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}
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// GetProjectStorageUsage gets inline and remote storage totals for a given
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// project, back to the time of the last accounting tally.
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func (cache *redisLiveAccounting) GetProjectStorageUsage(ctx context.Context, projectID uuid.UUID) (totalUsed int64, err error) {
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defer mon.Task()(&ctx, projectID)(&err)
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val, err := cache.client.Get(ctx, projectID[:])
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if err != nil {
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if storage.ErrKeyNotFound.Has(err) {
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return 0, nil
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}
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return 0, Error.Wrap(err)
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}
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intval, err := strconv.Atoi(string(val))
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return int64(intval), Error.Wrap(err)
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}
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// AddProjectStorageUsage lets the live accounting know that the given
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// project has just added spaceUsed bytes of storage (from the user's
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// perspective; i.e. segment size).
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func (cache *redisLiveAccounting) AddProjectStorageUsage(ctx context.Context, projectID uuid.UUID, spaceUsed int64) (err error) {
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defer mon.Task()(&ctx, projectID, spaceUsed)(&err)
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return cache.client.IncrBy(ctx, projectID[:], spaceUsed)
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}
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// GetAllProjectTotals iterates through the live accounting DB and returns a map of project IDs and totals.
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func (cache *redisLiveAccounting) GetAllProjectTotals(ctx context.Context) (_ map[uuid.UUID]int64, err error) {
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defer mon.Task()(&ctx)(&err)
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projects := make(map[uuid.UUID]int64)
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err = cache.client.Iterate(ctx, storage.IterateOptions{Recurse: true}, func(ctx context.Context, it storage.Iterator) error {
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var item storage.ListItem
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for it.Next(ctx, &item) {
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if item.Key == nil {
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return Error.New("nil key")
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}
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id := new(uuid.UUID)
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copy(id[:], item.Key[:])
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intval, err := strconv.Atoi(string(item.Value))
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if err != nil {
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return Error.New("could not get total for project %s", id.String())
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}
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projects[*id] = int64(intval)
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}
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return nil
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})
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return projects, err
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}
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// Close the DB connection.
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func (cache *redisLiveAccounting) Close() error {
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return cache.client.Close()
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}
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