1 files changed, 47 insertions, 0 deletions
diff --git a/vendor/go.opentelemetry.io/contrib/bridges/prometheus/config.go b/vendor/go.opentelemetry.io/contrib/bridges/prometheus/config.go
new file mode 100644
index 000000000..5b8a16c6c
--- /dev/null
+++ b/vendor/go.opentelemetry.io/contrib/bridges/prometheus/config.go
@@ -0,0 +1,47 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package prometheus // import "go.opentelemetry.io/contrib/bridges/prometheus"
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+// config contains options for the producer.
+type config struct {
+	gatherers []prometheus.Gatherer
+}
+
+// newConfig creates a validated config configured with options.
+func newConfig(opts ...Option) config {
+	cfg := config{}
+	for _, opt := range opts {
+		cfg = opt.apply(cfg)
+	}
+
+	if len(cfg.gatherers) == 0 {
+		cfg.gatherers = []prometheus.Gatherer{prometheus.DefaultGatherer}
+	}
+
+	return cfg
+}
+
+// Option sets producer option values.
+type Option interface {
+	apply(config) config
+}
+
+type optionFunc func(config) config
+
+func (fn optionFunc) apply(cfg config) config {
+	return fn(cfg)
+}
+
+// WithGatherer configures which prometheus Gatherer the Bridge will gather
+// from. If no registerer is used the prometheus DefaultGatherer is used.
+func WithGatherer(gatherer prometheus.Gatherer) Option {
+	return optionFunc(func(cfg config) config {
+		cfg.gatherers = append(cfg.gatherers, gatherer)
+		return cfg
+	})
+}