forked from TrueCloudLab/frostfs-http-gw
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
package frostfs
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/cache"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
|
|
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
type Source struct {
|
|
frostFS *FrostFS
|
|
netmapCache *cache.NetmapCache
|
|
bucketCache *cache.BucketCache
|
|
log *zap.Logger
|
|
}
|
|
|
|
func NewSource(frostFS *FrostFS, netmapCache *cache.NetmapCache, bucketCache *cache.BucketCache, log *zap.Logger) *Source {
|
|
return &Source{
|
|
frostFS: frostFS,
|
|
netmapCache: netmapCache,
|
|
bucketCache: bucketCache,
|
|
log: log,
|
|
}
|
|
}
|
|
|
|
func (s *Source) NetMapSnapshot(ctx context.Context) (netmap.NetMap, error) {
|
|
cachedNetmap := s.netmapCache.Get()
|
|
if cachedNetmap != nil {
|
|
return *cachedNetmap, nil
|
|
}
|
|
|
|
netmapSnapshot, err := s.frostFS.NetmapSnapshot(ctx)
|
|
if err != nil {
|
|
return netmap.NetMap{}, fmt.Errorf("get netmap: %w", err)
|
|
}
|
|
|
|
if err = s.netmapCache.Put(netmapSnapshot); err != nil {
|
|
s.log.Warn(logs.CouldntCacheNetmap, zap.Error(err))
|
|
}
|
|
|
|
return netmapSnapshot, nil
|
|
}
|
|
|
|
func (s *Source) PlacementPolicy(ctx context.Context, cnrID cid.ID) (netmap.PlacementPolicy, error) {
|
|
info := s.bucketCache.GetByCID(cnrID)
|
|
if info != nil {
|
|
return info.PlacementPolicy, nil
|
|
}
|
|
|
|
prm := handler.PrmContainer{
|
|
ContainerID: cnrID,
|
|
}
|
|
res, err := s.frostFS.Container(ctx, prm)
|
|
if err != nil {
|
|
return netmap.PlacementPolicy{}, fmt.Errorf("get container: %w", err)
|
|
}
|
|
|
|
// We don't put container back to the cache to keep cache
|
|
// coherent to the requests made by users. FrostFS Source
|
|
// is being used by SDK Tree Pool and it should not fill cache
|
|
// with possibly irrelevant container values.
|
|
|
|
return res.PlacementPolicy(), nil
|
|
}
|