opentelemetry-collector/component/factories.go

94 lines
3.3 KiB
Go

// 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 component
import (
"fmt"
"go.opentelemetry.io/collector/config"
)
// Factories struct holds in a single type all component factories that
// can be handled by the Config.
type Factories struct {
// Receivers maps receiver type names in the config to the respective factory.
Receivers map[config.Type]ReceiverFactory
// Processors maps processor type names in the config to the respective factory.
Processors map[config.Type]ProcessorFactory
// Exporters maps exporter type names in the config to the respective factory.
Exporters map[config.Type]ExporterFactory
// Extensions maps extension type names in the config to the respective factory.
Extensions map[config.Type]ExtensionFactory
}
// MakeReceiverFactoryMap takes a list of receiver factories and returns a map
// with factory type as keys. It returns a non-nil error when more than one factories
// have the same type.
func MakeReceiverFactoryMap(factories ...ReceiverFactory) (map[config.Type]ReceiverFactory, error) {
fMap := map[config.Type]ReceiverFactory{}
for _, f := range factories {
if _, ok := fMap[f.Type()]; ok {
return fMap, fmt.Errorf("duplicate receiver factory %q", f.Type())
}
fMap[f.Type()] = f
}
return fMap, nil
}
// MakeProcessorFactoryMap takes a list of processor factories and returns a map
// with factory type as keys. It returns a non-nil error when more than one factories
// have the same type.
func MakeProcessorFactoryMap(factories ...ProcessorFactory) (map[config.Type]ProcessorFactory, error) {
fMap := map[config.Type]ProcessorFactory{}
for _, f := range factories {
if _, ok := fMap[f.Type()]; ok {
return fMap, fmt.Errorf("duplicate processor factory %q", f.Type())
}
fMap[f.Type()] = f
}
return fMap, nil
}
// MakeExporterFactoryMap takes a list of exporter factories and returns a map
// with factory type as keys. It returns a non-nil error when more than one factories
// have the same type.
func MakeExporterFactoryMap(factories ...ExporterFactory) (map[config.Type]ExporterFactory, error) {
fMap := map[config.Type]ExporterFactory{}
for _, f := range factories {
if _, ok := fMap[f.Type()]; ok {
return fMap, fmt.Errorf("duplicate exporter factory %q", f.Type())
}
fMap[f.Type()] = f
}
return fMap, nil
}
// MakeExtensionFactoryMap takes a list of extension factories and returns a map
// with factory type as keys. It returns a non-nil error when more than one factories
// have the same type.
func MakeExtensionFactoryMap(factories ...ExtensionFactory) (map[config.Type]ExtensionFactory, error) {
fMap := map[config.Type]ExtensionFactory{}
for _, f := range factories {
if _, ok := fMap[f.Type()]; ok {
return fMap, fmt.Errorf("duplicate extension factory %q", f.Type())
}
fMap[f.Type()] = f
}
return fMap, nil
}