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package mongodb
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/filer"
"github.com/chrislusf/seaweedfs/weed/glog"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
func (store *MongodbStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
dir, name := genDirAndName(key)
c := store.connect.Database(store.database).Collection(store.collectionName)
opts := options.Update().SetUpsert(true)
filter := bson.D{{"directory", dir}, {"name", name}}
update := bson.D{{"$set", bson.D{{"meta", value}}}}
_, err = c.UpdateOne(ctx, filter, update, opts)
if err != nil {
return fmt.Errorf("kv put: %v", err)
}
return nil
}
func (store *MongodbStore) KvGet(ctx context.Context, key []byte) (value []byte, err error) {
dir, name := genDirAndName(key)
var data Model
var where = bson.M{"directory": dir, "name": name}
err = store.connect.Database(store.database).Collection(store.collectionName).FindOne(ctx, where).Decode(&data)
if err != mongo.ErrNoDocuments && err != nil {
glog.Errorf("kv get: %v", err)
return nil, filer.ErrKvNotFound
}
if len(data.Meta) == 0 {
return nil, filer.ErrKvNotFound
}
return data.Meta, nil
}
func (store *MongodbStore) KvDelete(ctx context.Context, key []byte) (err error) {
dir, name := genDirAndName(key)
where := bson.M{"directory": dir, "name": name}
_, err = store.connect.Database(store.database).Collection(store.collectionName).DeleteOne(ctx, where)
if err != nil {
return fmt.Errorf("kv delete: %v", err)
}
return nil
}
func genDirAndName(key []byte) (dir string, name string) {
for len(key) < 8 {
key = append(key, 0)
}
dir = string(key[:8])
name = string(key[8:])
return
}
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