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