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object.go
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object.go
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package bsdb
import (
"fmt"
"sort"
"time"
"cosmossdk.io/math"
"github.com/forbole/juno/v4/common"
"github.com/spaolacci/murmur3"
"gorm.io/gorm"
"github.com/bnb-chain/greenfield-storage-provider/pkg/log"
)
const ObjectsNumberOfShards = 64
// ListObjectsByBucketName lists objects information by a bucket name.
// The function takes the following parameters:
// - bucketName: The name of the bucket to search for objects.
// - continuationToken: A token to paginate through the list of objects.
// - prefix: A prefix to filter the objects by their object names.
// - delimiter: A delimiter to group objects that share a common prefix. An empty delimiter means no grouping.
// - maxKeys: The maximum number of objects to return in the result.
//
// The function returns a slice of ListObjectsResult, which contains information about the objects and their types (object or common_prefix).
// If there is a delimiter specified, the function will group objects that share a common prefix and return them as common_prefix in the result.
// If the delimiter is empty, the function will return all objects without grouping them by a common prefix.
func (b *BsDBImpl) ListObjectsByBucketName(bucketName, continuationToken, prefix, delimiter string, maxKeys int, includeRemoved bool) ([]*ListObjectsResult, error) {
var (
err error
limit int
results []*ListObjectsResult
filters []func(*gorm.DB) *gorm.DB
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
// return NextContinuationToken by adding 1 additionally
limit = maxKeys + 1
// If delimiter is specified, execute a raw SQL query to:
// 1. Retrieve objects from the given bucket with matching prefix and continuationToken
// 2. Find common prefixes based on the delimiter
// 3. Limit results
if delimiter != "" {
results, err = b.ListObjects(bucketName, continuationToken, prefix, maxKeys)
} else {
// If delimiter is not specified, retrieve objects directly
if continuationToken != "" {
filters = append(filters, ContinuationTokenFilter(continuationToken))
}
if prefix != "" {
filters = append(filters, PrefixFilter(prefix))
}
if includeRemoved {
err = b.db.Table(GetObjectsTableName(bucketName)).
Select("*").
Where("bucket_name = ?", bucketName).
Scopes(filters...).
Limit(limit).
Order("object_name asc").
Find(&results).Error
} else {
err = b.db.Table(GetObjectsTableName(bucketName)).
Select("*").
Where("bucket_name = ? and removed = false", bucketName).
Scopes(filters...).
Limit(limit).
Order("object_name asc").
Find(&results).Error
}
}
return results, err
}
type ByUpdateAtAndObjectID []*Object
func (a ByUpdateAtAndObjectID) Len() int { return len(a) }
// Less we want to sort as ascending here
func (a ByUpdateAtAndObjectID) Less(i, j int) bool {
if a[i].UpdateAt == a[j].UpdateAt {
return a[i].ObjectID.Big().Uint64() < a[j].ObjectID.Big().Uint64()
}
return a[i].UpdateAt < a[j].UpdateAt
}
func (a ByUpdateAtAndObjectID) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
// ListDeletedObjectsByBlockNumberRange list deleted objects info by a block number range
func (b *BsDBImpl) ListDeletedObjectsByBlockNumberRange(startBlockNumber int64, endBlockNumber int64, includePrivate bool) ([]*Object, error) {
var (
totalObjects []*Object
objects []*Object
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
if includePrivate {
for i := 0; i < ObjectsNumberOfShards; i++ {
err = b.db.Table(GetObjectsTableNameByShardNumber(i)).
Select("*").
Where("update_at >= ? and update_at <= ? and removed = ?", startBlockNumber, endBlockNumber, true).
Limit(DeletedObjectsDefaultSize).
Order("update_at,object_id asc").
Find(&objects).Error
totalObjects = append(totalObjects, objects...)
}
} else {
for i := 0; i < ObjectsNumberOfShards; i++ {
objectTableName := GetObjectsTableNameByShardNumber(i)
joins := fmt.Sprintf("right join buckets on buckets.bucket_id = %s.bucket_id", objectTableName)
order := fmt.Sprintf("%s.update_at, %s.object_id asc", objectTableName, objectTableName)
where := fmt.Sprintf("%s.update_at >= ? and %s.update_at <= ? and %s.removed = ? and "+
"((%s.visibility='VISIBILITY_TYPE_PUBLIC_READ') or "+
"(%s.visibility='VISIBILITY_TYPE_INHERIT' and buckets.visibility='VISIBILITY_TYPE_PUBLIC_READ'))",
objectTableName, objectTableName, objectTableName, objectTableName, objectTableName)
err = b.db.Table(objectTableName).
Select(objectTableName+".*").
Joins(joins).
Where(where, startBlockNumber, endBlockNumber, true).
Limit(DeletedObjectsDefaultSize).
Order(order).
Find(&objects).Error
totalObjects = append(totalObjects, objects...)
}
}
sort.Sort(ByUpdateAtAndObjectID(totalObjects))
if len(totalObjects) > DeletedObjectsDefaultSize {
totalObjects = totalObjects[0:DeletedObjectsDefaultSize]
}
return totalObjects, err
}
// GetObjectByName get object info by an object name
func (b *BsDBImpl) GetObjectByName(objectName string, bucketName string, includePrivate bool) (*Object, error) {
var (
object *Object
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
if includePrivate {
err = b.db.Table(GetObjectsTableName(bucketName)).
Select("*").
Where("object_name = ? and bucket_name = ? and removed = false", objectName, bucketName).
Take(&object).Error
return object, err
}
err = b.db.Table(GetObjectsTableName(bucketName)).
Select("objects.*").
Joins("left join objects on buckets.bucket_id = objects.bucket_id").
Where("objects.object_name = ? and objects.bucket_name = ? and objects.removed = false and "+
"((objects.visibility='VISIBILITY_TYPE_PUBLIC_READ') or (objects.visibility='VISIBILITY_TYPE_INHERIT' and buckets.visibility='VISIBILITY_TYPE_PUBLIC_READ'))",
objectName, bucketName).
Take(&object).Error
return object, err
}
// ListObjectsByObjectID list objects by object ids
func (b *BsDBImpl) ListObjectsByObjectID(ids []common.Hash, includeRemoved bool) ([]*Object, error) {
var (
objects []*Object
err error
filters []func(*gorm.DB) *gorm.DB
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
if !includeRemoved {
filters = append(filters, RemovedFilter(includeRemoved))
}
for _, id := range ids {
var object *Object
bucketName, err := b.GetBucketNameByObjectID(id)
if err != nil {
log.Errorw("failed to get bucket name by object id in ListObjectsByObjectID", "error", err)
continue
}
err = b.db.Table(GetObjectsTableName(bucketName)).
Select("*").
Where("object_id = ?", id).
Scopes(filters...).
Take(&object).Error
if err != nil {
log.Errorw("failed to get object by object id in ListObjectsByObjectID", "error", err)
continue
}
objects = append(objects, object)
}
return objects, err
}
func GetObjectsTableName(bucketName string) string {
return GetObjectsTableNameByShardNumber(int(GetObjectsShardNumberByBucketName(bucketName)))
}
func GetObjectsShardNumberByBucketName(bucketName string) uint32 {
return murmur3.Sum32([]byte(bucketName)) % ObjectsNumberOfShards
}
func GetObjectsTableNameByShardNumber(shard int) string {
return fmt.Sprintf("%s_%02d", ObjectTableName, shard)
}
// GetObjectByID get object info by object id
func (b *BsDBImpl) GetObjectByID(objectID int64, includeRemoved bool) (*Object, error) {
var (
object *Object
err error
objectIDHash common.Hash
bucketName string
filters []func(*gorm.DB) *gorm.DB
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
objectIDHash = common.BigToHash(math.NewInt(objectID).BigInt())
if !includeRemoved {
filters = append(filters, RemovedFilter(includeRemoved))
}
bucketName, err = b.GetBucketNameByObjectID(objectIDHash)
if err != nil {
log.Errorw("failed to get bucket name by object id in GetObjectByID", "error", err)
return nil, err
}
err = b.db.Table(GetObjectsTableName(bucketName)).
Select("*").
Where("object_id = ?", objectIDHash).
Scopes(filters...).
Take(&object).Error
return object, err
}
// ListObjectsInGVGAndBucket list objects by gvg and bucket id
func (b *BsDBImpl) ListObjectsInGVGAndBucket(bucketID common.Hash, gvgID uint32, startAfter common.Hash, limit int) ([]*Object, *Bucket, error) {
var (
localGroups []*LocalVirtualGroup
objects []*Object
gvgIDs []uint32
lvgIDs []uint32
bucket *Bucket
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
gvgIDs = append(gvgIDs, gvgID)
localGroups, err = b.ListLvgByGvgAndBucketID(bucketID, gvgIDs)
if err != nil || len(localGroups) == 0 {
return nil, nil, err
}
lvgIDs = make([]uint32, len(localGroups))
for i, group := range localGroups {
lvgIDs[i] = group.LocalVirtualGroupId
}
objects, bucket, err = b.ListObjectsByLVGID(lvgIDs, bucketID, startAfter, limit)
return objects, bucket, err
}
// ListObjectsByGVGAndBucketForGC list objects by gvg and bucket for gc
func (b *BsDBImpl) ListObjectsByGVGAndBucketForGC(bucketID common.Hash, gvgID uint32, startAfter common.Hash, limit int) ([]*Object, *Bucket, error) {
var (
localGroups []*LocalVirtualGroup
objects []*Object
gvgIDs []uint32
lvgIDs []uint32
completeEvent *EventCompleteMigrationBucket
bucket *Bucket
filters []func(*gorm.DB) *gorm.DB
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
gvgIDs = append(gvgIDs, gvgID)
localGroups, err = b.ListLvgByGvgAndBucketID(bucketID, gvgIDs)
if err != nil || len(localGroups) == 0 {
return nil, nil, err
}
lvgIDs = make([]uint32, len(localGroups))
for i, group := range localGroups {
lvgIDs[i] = group.LocalVirtualGroupId
}
completeEvent, err = b.GetMigrateBucketEventByBucketID(bucketID)
if err != nil {
return nil, nil, err
}
if completeEvent != nil {
filters = append(filters, CreateAtFilter(completeEvent.CreateAt))
}
objects, bucket, err = b.ListObjectsByLVGID(lvgIDs, bucketID, startAfter, limit, filters...)
return objects, bucket, err
}
// ListObjectsByLVGID list objects by lvg id
func (b *BsDBImpl) ListObjectsByLVGID(lvgIDs []uint32, bucketID common.Hash, startAfter common.Hash, limit int, filters ...func(*gorm.DB) *gorm.DB) ([]*Object, *Bucket, error) {
var (
bucket *Bucket
objects []*Object
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
bucket, err = b.GetBucketByID(bucketID.Big().Int64(), true)
if err != nil {
log.Errorw("failed to get bucket name by bucket id in ListObjectsByLVGID", "error", err)
return nil, nil, err
}
filters = append(filters, ObjectIDStartAfterFilter(startAfter), RemovedFilter(false), WithLimit(limit))
err = b.db.Table(GetObjectsTableName(bucket.BucketName)).
Select("*").
Where("local_virtual_group_id in (?) and bucket_id = ? and status = 'OBJECT_STATUS_SEALED'", lvgIDs, bucketID).
Scopes(filters...).
Order("object_id").
Find(&objects).Error
return objects, bucket, err
}
// ListObjectsInGVG list objects by gvg and bucket id
func (b *BsDBImpl) ListObjectsInGVG(gvgID uint32, startAfter common.Hash, limit int) ([]*Object, []*Bucket, error) {
var (
localGroups []*LocalVirtualGroup
objects []*Object
buckets []*Bucket
bucketIDs []common.Hash
bucketIDsMap map[common.Hash]bool
tableNameMap map[common.Hash]string
gvgIDs []uint32
query string
err error
)
startTime := time.Now()
methodName := currentFunction()
defer func() {
if err != nil {
MetadataDatabaseFailureMetrics(err, startTime, methodName)
} else {
MetadataDatabaseSuccessMetrics(startTime, methodName)
}
}()
gvgIDs = append(gvgIDs, gvgID)
localGroups, err = b.ListLvgByGvgID(gvgIDs)
if err != nil || len(localGroups) == 0 {
return nil, nil, err
}
bucketIDsMap = make(map[common.Hash]bool)
bucketIDs = make([]common.Hash, 0)
for _, group := range localGroups {
if _, ok := bucketIDsMap[group.BucketID]; !ok {
bucketIDs = append(bucketIDs, group.BucketID)
bucketIDsMap[group.BucketID] = true
}
}
buckets, err = b.ListBucketsByBucketID(bucketIDs, false)
if err != nil {
return nil, nil, err
}
tableNameMap = make(map[common.Hash]string)
for _, bucket := range buckets {
tableNameMap[bucket.BucketID] = GetObjectsTableName(bucket.BucketName)
}
query = fmt.Sprintf("select * from ((select * from %s where local_virtual_group_id = %d and bucket_id = %s)", tableNameMap[localGroups[0].BucketID], localGroups[0].LocalVirtualGroupId, localGroups[0].BucketID.String())
if len(localGroups) > 1 {
for _, group := range localGroups[1:] {
subQuery := fmt.Sprintf(" UNION ALL (select * from %s where local_virtual_group_id = %d and bucket_id = %s)", tableNameMap[group.BucketID], group.LocalVirtualGroupId, group.BucketID.String())
query = query + subQuery
}
}
query = query + fmt.Sprintf(") as combined where status = 'OBJECT_STATUS_SEALED' and object_id > %s and removed = false order by object_id limit %d;", startAfter.String(), limit)
err = b.db.Table((&Object{}).TableName()).Raw(query).Find(&objects).Error
return objects, buckets, err
}