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feat: add sequencer of mongo (mosn#376)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,203 @@ | ||
| // | ||
| // Copyright 2021 Layotto Authors | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| package mock | ||
|
|
||
| import ( | ||
| "context" | ||
| "go.mongodb.org/mongo-driver/bson" | ||
| "go.mongodb.org/mongo-driver/bson/bsoncodec" | ||
| "go.mongodb.org/mongo-driver/mongo" | ||
| "go.mongodb.org/mongo-driver/mongo/options" | ||
| "go.mongodb.org/mongo-driver/mongo/readpref" | ||
| "mosn.io/layotto/components/pkg/utils" | ||
| "reflect" | ||
| "unsafe" | ||
| ) | ||
|
|
||
| var Result = make(map[string]bson.M) | ||
| var id string | ||
|
|
||
| type MockMongoSequencerFactory struct{} | ||
|
|
||
| // MockMongoClient is a mock of MongoClient interface | ||
| type MockMongoSequencerClient struct{} | ||
|
|
||
| // MockMongoSession is a mock of MongoSession interface | ||
| type MockMongoSequencerSession struct { | ||
| mongo.SessionContext | ||
| } | ||
|
|
||
| // MockMongoCollection is a mock of MongoCollection interface | ||
| type MockMongoSequencerCollection struct { | ||
| // '_id' document | ||
| InsertOneResult *mongo.InsertOneResult | ||
| Result map[string]bson.M | ||
| } | ||
|
|
||
| type MockMongoSequencerSingleResult struct{} | ||
|
|
||
| func NewMockMongoSequencerFactory() *MockMongoSequencerFactory { | ||
| return &MockMongoSequencerFactory{} | ||
| } | ||
|
|
||
| func NewMockMongoSequencerSession() *MockMongoSequencerSession { | ||
| return &MockMongoSequencerSession{} | ||
| } | ||
|
|
||
| func (f *MockMongoSequencerFactory) NewSingleResult(sr *mongo.SingleResult) utils.MongoSingleResult { | ||
| return &MockMongoSequencerSingleResult{} | ||
| } | ||
|
|
||
| func (f *MockMongoSequencerFactory) NewMongoClient(m utils.MongoMetadata) (utils.MongoClient, error) { | ||
| return &MockMongoSequencerClient{}, nil | ||
| } | ||
|
|
||
| func (f *MockMongoSequencerFactory) NewMongoCollection(m *mongo.Database, collectionName string, opts *options.CollectionOptions) utils.MongoCollection { | ||
| return &MockMongoSequencerCollection{} | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) FindOne(ctx context.Context, filter interface{}, opts ...*options.FindOneOptions) *mongo.SingleResult { | ||
| result := new(mongo.SingleResult) | ||
| value := reflect.ValueOf(result) | ||
| doc := filter.(bson.M) | ||
| id = doc["_id"].(string) | ||
| if value.Kind() == reflect.Ptr { | ||
| elem := value.Elem() | ||
| err := elem.FieldByName("err") | ||
| *(*error)(unsafe.Pointer(err.Addr().Pointer())) = nil | ||
|
|
||
| cur := elem.FieldByName("cur") | ||
| *(**mongo.Cursor)(unsafe.Pointer(cur.Addr().Pointer())) = &mongo.Cursor{} | ||
|
|
||
| rdr := elem.FieldByName("rdr") | ||
| *(*bson.Raw)(unsafe.Pointer(rdr.Addr().Pointer())) = bson.Raw{} | ||
|
|
||
| reg := elem.FieldByName("reg") | ||
| *(**bsoncodec.Registry)(unsafe.Pointer(reg.Addr().Pointer())) = &bsoncodec.Registry{} | ||
| } | ||
| return result | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) InsertOne(ctx context.Context, document interface{}, opts ...*options.InsertOneOptions) (*mongo.InsertOneResult, error) { | ||
| doc := document.(bson.M) | ||
| value := doc["_id"].(string) | ||
| if _, ok := Result[value]; ok { | ||
| return nil, nil | ||
| } else { | ||
| // insert cache | ||
| Result[value] = doc | ||
| mc.InsertOneResult.InsertedID = value | ||
| return mc.InsertOneResult, nil | ||
| } | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) DeleteOne(ctx context.Context, filter interface{}, opts ...*options.DeleteOptions) (*mongo.DeleteResult, error) { | ||
| return nil, nil | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) Find(ctx context.Context, filter interface{}, opts ...*options.FindOptions) (*mongo.Cursor, error) { | ||
| cursor := &mongo.Cursor{} | ||
| return cursor, nil | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) Indexes() mongo.IndexView { | ||
| return mongo.IndexView{} | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) UpdateOne(ctx context.Context, filter interface{}, update interface{}, opts ...*options.UpdateOptions) (*mongo.UpdateResult, error) { | ||
| doc := filter.(bson.M) | ||
| value := doc["_id"].(string) | ||
| if res, ok := Result[value]; ok { | ||
| Result[value] = bson.M{"_id": res["_id"], "sequencer_value": res["sequencer_value"].(int) + 1} | ||
| return nil, nil | ||
| } | ||
| return nil, nil | ||
| } | ||
|
|
||
| func (mc *MockMongoSequencerCollection) FindOneAndUpdate(ctx context.Context, filter interface{}, | ||
| update interface{}, opts ...*options.FindOneAndUpdateOptions) *mongo.SingleResult { | ||
| doc := filter.(bson.M) | ||
| id = doc["_id"].(string) | ||
| upDoc := update.(bson.M) | ||
| value := doc["_id"].(string) | ||
| up := upDoc["$inc"].(bson.M) | ||
| num := up["sequencer_value"].(int) | ||
| if res, ok := Result[value]; ok { | ||
| Result[value] = bson.M{"_id": res["_id"], "sequencer_value": res["sequencer_value"].(int) + num} | ||
| return nil | ||
| } else { | ||
| bm := bson.M{"_id": doc["_id"], "sequencer_value": num} | ||
| mc.InsertOne(ctx, bm) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (c *MockMongoSequencerClient) StartSession(opts ...*options.SessionOptions) (mongo.Session, error) { | ||
| return &MockMongoSequencerSession{}, nil | ||
| } | ||
|
|
||
| func (c *MockMongoSequencerClient) Ping(ctx context.Context, rp *readpref.ReadPref) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (c *MockMongoSequencerClient) Database(name string, opts ...*options.DatabaseOptions) *mongo.Database { | ||
| return nil | ||
| } | ||
|
|
||
| func (c *MockMongoSequencerClient) Disconnect(ctx context.Context) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (s *MockMongoSequencerSession) AbortTransaction(context.Context) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (s *MockMongoSequencerSession) CommitTransaction(context.Context) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (s *MockMongoSequencerSession) WithTransaction(ctx context.Context, fn func(sessCtx mongo.SessionContext) (interface{}, error), | ||
| opts ...*options.TransactionOptions) (interface{}, error) { | ||
| res, err := fn(s) | ||
| return res, err | ||
| } | ||
|
|
||
| func (s *MockMongoSequencerSession) EndSession(context.Context) {} | ||
|
|
||
| func (d *MockMongoSequencerSingleResult) Decode(v interface{}) error { | ||
| b := Result[id] | ||
| id := b["_id"].(string) | ||
| value := b["sequencer_value"].(int) | ||
| ref := reflect.ValueOf(v) | ||
| if ref.Kind() == reflect.Ptr { | ||
| elem := ref.Elem() | ||
| Id := elem.FieldByName("Id") | ||
| *(*string)(unsafe.Pointer(Id.Addr().Pointer())) = id | ||
|
|
||
| v := elem.FieldByName("Sequencer_value") | ||
| *(*int)(unsafe.Pointer(v.Addr().Pointer())) = value | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (d *MockMongoSequencerSingleResult) Err() error { | ||
| if Result[id] == nil { | ||
| return mongo.ErrNoDocuments | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (d *MockMongoSequencerSingleResult) DecodeBytes() (bson.Raw, error) { | ||
| return nil, nil | ||
| } |
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