2022-09-21 05:45:23 +00:00
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package registry
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import (
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"encoding/binary"
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"encoding/json"
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"os"
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"time"
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"go.etcd.io/bbolt"
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)
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type ObjRegistry struct {
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boltDB *bbolt.DB
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objSelector *ObjSelector
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}
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const (
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// Indicates that an object was created, but its data wasn't verified yet
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statusCreated = "created"
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)
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const bucketName = "_object"
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// ObjectInfo represents information about neoFS object that has been created
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// via gRPC/HTTP/S3 API.
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type ObjectInfo struct {
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Id uint64 // Identifier in bolt DB
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CID string // Container ID in gRPC/HTTP
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OID string // Object ID in gRPC/HTTP
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S3Bucket string // Bucket name in S3
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S3Key string // Object key in S3
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Status string // Status of the object
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PayloadHash string // SHA256 hash of object payload that can be used for verification
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}
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// NewModuleInstance implements the modules.Module interface and returns
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// a new instance for each VU.
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func NewObjRegistry(dbFilePath string) *ObjRegistry {
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options := bbolt.Options{Timeout: 100 * time.Millisecond}
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boltDB, err := bbolt.Open(dbFilePath, os.ModePerm, &options)
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if err != nil {
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panic(err)
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}
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objSelector := ObjSelector{boltDB: boltDB, objStatus: statusCreated}
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objRepository := &ObjRegistry{boltDB: boltDB, objSelector: &objSelector}
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return objRepository
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}
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func (o *ObjRegistry) AddObject(cid, oid, s3Bucket, s3Key, payloadHash string) error {
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return o.boltDB.Update(func(tx *bbolt.Tx) error {
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b, err := tx.CreateBucketIfNotExists([]byte(bucketName))
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if err != nil {
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return err
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}
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id, err := b.NextSequence()
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if err != nil {
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return err
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}
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object := ObjectInfo{
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Id: id,
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CID: cid,
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OID: oid,
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S3Bucket: s3Bucket,
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S3Key: s3Key,
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PayloadHash: payloadHash,
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Status: statusCreated,
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}
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objectJson, err := json.Marshal(object)
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if err != nil {
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return err
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}
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return b.Put(encodeId(id), objectJson)
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})
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}
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func (o *ObjRegistry) SetObjectStatus(id uint64, newStatus string) error {
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return o.boltDB.Update(func(tx *bbolt.Tx) error {
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b, err := tx.CreateBucketIfNotExists([]byte(bucketName))
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if err != nil {
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return err
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}
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objBytes := b.Get(encodeId(id))
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if objBytes == nil {
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return nil
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}
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obj := new(ObjectInfo)
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if err := json.Unmarshal(objBytes, &obj); err != nil {
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return err
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}
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obj.Status = newStatus
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objBytes, err = json.Marshal(obj)
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if err != nil {
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return err
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}
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return b.Put(encodeId(id), objBytes)
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})
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}
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2022-09-21 13:22:33 +00:00
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func (o *ObjRegistry) GetObjectCountInStatus(status string) (int, error) {
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var objCount = 0
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err := o.boltDB.View(func(tx *bbolt.Tx) error {
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b := tx.Bucket([]byte(bucketName))
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if b == nil {
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return nil
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}
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c := b.Cursor()
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for keyBytes, objBytes := c.First(); keyBytes != nil; keyBytes, objBytes = c.Next() {
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if objBytes != nil {
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var obj ObjectInfo
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if err := json.Unmarshal(objBytes, &obj); err != nil {
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// Ignore malformed objects
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continue
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}
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if obj.Status == status {
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objCount++
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}
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}
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}
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return nil
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})
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return objCount, err
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}
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2022-09-21 05:45:23 +00:00
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func (o *ObjRegistry) NextObjectToVerify() (*ObjectInfo, error) {
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return o.objSelector.NextObject()
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}
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func (o *ObjRegistry) Close() error {
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return o.boltDB.Close()
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}
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func encodeId(id uint64) []byte {
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idBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(idBytes, id)
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return idBytes
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}
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func decodeId(idBytes []byte) uint64 {
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return binary.BigEndian.Uint64(idBytes)
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}
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