升级流程引擎配置文件版本

vendor/go.mongodb.org/mongo-driver/mongo/options/dboptions.go

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+// Copyright (C) MongoDB, Inc. 2017-present.
+//
+// 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
+
+package options
+
+import (
+	"go.mongodb.org/mongo-driver/bson/bsoncodec"
+	"go.mongodb.org/mongo-driver/mongo/readconcern"
+	"go.mongodb.org/mongo-driver/mongo/readpref"
+	"go.mongodb.org/mongo-driver/mongo/writeconcern"
+)
+
+// DatabaseOptions represents options that can be used to configure a Database.
+type DatabaseOptions struct {
+	// ReadConcern is the read concern to use for operations executed on the Database. The default value is nil, which means that
+	// the read concern of the Client used to configure the Database will be used.
+	ReadConcern *readconcern.ReadConcern
+
+	// WriteConcern is the write concern to use for operations executed on the Database. The default value is nil, which means that the
+	// write concern of the Client used to configure the Database will be used.
+	WriteConcern *writeconcern.WriteConcern
+
+	// ReadPreference is the read preference to use for operations executed on the Database. The default value is nil, which means that
+	// the read preference of the Client used to configure the Database will be used.
+	ReadPreference *readpref.ReadPref
+
+	// Registry is the BSON registry to marshal and unmarshal documents for operations executed on the Database. The default value
+	// is nil, which means that the registry of the Client used to configure the Database will be used.
+	Registry *bsoncodec.Registry
+}
+
+// Database creates a new DatabaseOptions instance.
+func Database() *DatabaseOptions {
+	return &DatabaseOptions{}
+}
+
+// SetReadConcern sets the value for the ReadConcern field.
+func (d *DatabaseOptions) SetReadConcern(rc *readconcern.ReadConcern) *DatabaseOptions {
+	d.ReadConcern = rc
+	return d
+}
+
+// SetWriteConcern sets the value for the WriteConcern field.
+func (d *DatabaseOptions) SetWriteConcern(wc *writeconcern.WriteConcern) *DatabaseOptions {
+	d.WriteConcern = wc
+	return d
+}
+
+// SetReadPreference sets the value for the ReadPreference field.
+func (d *DatabaseOptions) SetReadPreference(rp *readpref.ReadPref) *DatabaseOptions {
+	d.ReadPreference = rp
+	return d
+}
+
+// SetRegistry sets the value for the Registry field.
+func (d *DatabaseOptions) SetRegistry(r *bsoncodec.Registry) *DatabaseOptions {
+	d.Registry = r
+	return d
+}
+
+// MergeDatabaseOptions combines the given DatabaseOptions instances into a single DatabaseOptions in a last-one-wins
+// fashion.
+func MergeDatabaseOptions(opts ...*DatabaseOptions) *DatabaseOptions {
+	d := Database()
+
+	for _, opt := range opts {
+		if opt == nil {
+			continue
+		}
+		if opt.ReadConcern != nil {
+			d.ReadConcern = opt.ReadConcern
+		}
+		if opt.WriteConcern != nil {
+			d.WriteConcern = opt.WriteConcern
+		}
+		if opt.ReadPreference != nil {
+			d.ReadPreference = opt.ReadPreference
+		}
+		if opt.Registry != nil {
+			d.Registry = opt.Registry
+		}
+	}
+
+	return d
+}