VENDOR intensifies

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

@@ -0,0 +1,60 @@
+// 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 readpref
+
+import (
+	"errors"
+	"time"
+
+	"go.mongodb.org/mongo-driver/tag"
+)
+
+// ErrInvalidTagSet indicates that an invalid set of tags was specified.
+var ErrInvalidTagSet = errors.New("an even number of tags must be specified")
+
+// Option configures a read preference
+type Option func(*ReadPref) error
+
+// WithMaxStaleness sets the maximum staleness a
+// server is allowed.
+func WithMaxStaleness(ms time.Duration) Option {
+	return func(rp *ReadPref) error {
+		rp.maxStaleness = ms
+		rp.maxStalenessSet = true
+		return nil
+	}
+}
+
+// WithTags sets a single tag set used to match
+// a server. The last call to WithTags or WithTagSets
+// overrides all previous calls to either method.
+func WithTags(tags ...string) Option {
+	return func(rp *ReadPref) error {
+		length := len(tags)
+		if length < 2 || length%2 != 0 {
+			return ErrInvalidTagSet
+		}
+
+		tagset := make(tag.Set, 0, length/2)
+
+		for i := 1; i < length; i += 2 {
+			tagset = append(tagset, tag.Tag{Name: tags[i-1], Value: tags[i]})
+		}
+
+		return WithTagSets(tagset)(rp)
+	}
+}
+
+// WithTagSets sets the tag sets used to match
+// a server. The last call to WithTags or WithTagSets
+// overrides all previous calls to either method.
+func WithTagSets(tagSets ...tag.Set) Option {
+	return func(rp *ReadPref) error {
+		rp.tagSets = tagSets
+		return nil
+	}
+}