Don Newton | 379ae25 | 2019-04-01 12:17:06 -0400 | [diff] [blame^] | 1 | // Copyright (C) MongoDB, Inc. 2017-present. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 4 | // not use this file except in compliance with the License. You may obtain |
| 5 | // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| 6 | |
| 7 | package session |
| 8 | |
| 9 | import ( |
| 10 | "github.com/mongodb/mongo-go-driver/mongo/readconcern" |
| 11 | "github.com/mongodb/mongo-go-driver/mongo/readpref" |
| 12 | "github.com/mongodb/mongo-go-driver/mongo/writeconcern" |
| 13 | ) |
| 14 | |
| 15 | // ClientOptions represents all possible options for creating a client session. |
| 16 | type ClientOptions struct { |
| 17 | CausalConsistency *bool |
| 18 | DefaultReadConcern *readconcern.ReadConcern |
| 19 | DefaultWriteConcern *writeconcern.WriteConcern |
| 20 | DefaultReadPreference *readpref.ReadPref |
| 21 | } |
| 22 | |
| 23 | // TransactionOptions represents all possible options for starting a transaction in a session. |
| 24 | type TransactionOptions struct { |
| 25 | ReadConcern *readconcern.ReadConcern |
| 26 | WriteConcern *writeconcern.WriteConcern |
| 27 | ReadPreference *readpref.ReadPref |
| 28 | } |
| 29 | |
| 30 | func mergeClientOptions(opts ...*ClientOptions) *ClientOptions { |
| 31 | c := &ClientOptions{} |
| 32 | for _, opt := range opts { |
| 33 | if opt == nil { |
| 34 | continue |
| 35 | } |
| 36 | if opt.CausalConsistency != nil { |
| 37 | c.CausalConsistency = opt.CausalConsistency |
| 38 | } |
| 39 | if opt.DefaultReadConcern != nil { |
| 40 | c.DefaultReadConcern = opt.DefaultReadConcern |
| 41 | } |
| 42 | if opt.DefaultReadPreference != nil { |
| 43 | c.DefaultReadPreference = opt.DefaultReadPreference |
| 44 | } |
| 45 | if opt.DefaultWriteConcern != nil { |
| 46 | c.DefaultWriteConcern = opt.DefaultWriteConcern |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | return c |
| 51 | } |