/
config.go
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/
config.go
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// Copyright The OpenTelemetry 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 otlpreceiver // import "go.opentelemetry.io/collector/receiver/otlpreceiver"
import (
"errors"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/config/configgrpc"
"go.opentelemetry.io/collector/config/confighttp"
"go.opentelemetry.io/collector/confmap"
)
const (
// Protocol values.
protoGRPC = "grpc"
protoHTTP = "http"
protocolsFieldName = "protocols"
)
// Protocols is the configuration for the supported protocols.
type Protocols struct {
GRPC *configgrpc.GRPCServerSettings `mapstructure:"grpc"`
HTTP *confighttp.HTTPServerSettings `mapstructure:"http"`
}
// Config defines configuration for OTLP receiver.
type Config struct {
config.ReceiverSettings `mapstructure:",squash"` // squash ensures fields are correctly decoded in embedded struct
// Protocols is the configuration for the supported protocols, currently gRPC and HTTP (Proto and JSON).
Protocols `mapstructure:"protocols"`
}
var _ config.Receiver = (*Config)(nil)
var _ config.Unmarshallable = (*Config)(nil)
// Validate checks the receiver configuration is valid
func (cfg *Config) Validate() error {
if cfg.GRPC == nil &&
cfg.HTTP == nil {
return errors.New("must specify at least one protocol when using the OTLP receiver")
}
return nil
}
// Unmarshal a confmap.Conf into the config struct.
func (cfg *Config) Unmarshal(componentParser *confmap.Conf) error {
if componentParser == nil || len(componentParser.AllKeys()) == 0 {
return errors.New("empty config for OTLP receiver")
}
// first load the config normally
err := componentParser.UnmarshalExact(cfg)
if err != nil {
return err
}
// next manually search for protocols in the confmap.Conf, if a protocol is not present it means it is disabled.
protocols, err := componentParser.Sub(protocolsFieldName)
if err != nil {
return err
}
if !protocols.IsSet(protoGRPC) {
cfg.GRPC = nil
}
if !protocols.IsSet(protoHTTP) {
cfg.HTTP = nil
}
return nil
}