cosmium/internal/datastore/badger_datastore/partition_key_ranges.go

54 lines
1.6 KiB
Go

package badgerdatastore
import (
"fmt"
"github.com/google/uuid"
"github.com/pikami/cosmium/internal/datastore"
"github.com/pikami/cosmium/internal/resourceid"
)
// I have no idea what this is tbh
func (r *BadgerDataStore) GetPartitionKeyRanges(databaseId string, collectionId string) ([]datastore.PartitionKeyRange, datastore.DataStoreStatus) {
databaseRid := databaseId
collectionRid := collectionId
var timestamp int64 = 0
txn := r.db.NewTransaction(false)
defer txn.Discard()
var database datastore.Database
status := getKey(txn, generateDatabaseKey(databaseId), &database)
if status != datastore.StatusOk {
databaseRid = database.ResourceID
}
var collection datastore.Collection
status = getKey(txn, generateCollectionKey(databaseId, collectionId), &collection)
if status != datastore.StatusOk {
collectionRid = collection.ResourceID
timestamp = collection.TimeStamp
}
pkrResourceId := resourceid.NewCombined(collectionRid, resourceid.New(resourceid.ResourceTypePartitionKeyRange))
pkrSelf := fmt.Sprintf("dbs/%s/colls/%s/pkranges/%s/", databaseRid, collectionRid, pkrResourceId)
etag := fmt.Sprintf("\"%s\"", uuid.New())
return []datastore.PartitionKeyRange{
{
ResourceID: pkrResourceId,
ID: "0",
Etag: etag,
MinInclusive: "",
MaxExclusive: "FF",
RidPrefix: 0,
Self: pkrSelf,
ThroughputFraction: 1,
Status: "online",
Parents: []interface{}{},
TimeStamp: timestamp,
Lsn: 17,
},
}, datastore.StatusOk
}