opentelemetry-collector/service/internal/builders/receiver.go

129 lines
4.2 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package builders // import "go.opentelemetry.io/collector/service/internal/builders"
import (
"context"
"fmt"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/consumer/xconsumer"
"go.opentelemetry.io/collector/pipeline"
"go.opentelemetry.io/collector/receiver"
"go.opentelemetry.io/collector/receiver/receivertest"
"go.opentelemetry.io/collector/receiver/xreceiver"
)
// ReceiverBuilder receiver is a helper struct that given a set of Configs and
// Factories helps with creating receivers.
type ReceiverBuilder struct {
cfgs map[component.ID]component.Config
factories map[component.Type]receiver.Factory
}
// NewReceiver creates a new ReceiverBuilder to help with creating
// components form a set of configs and factories.
func NewReceiver(cfgs map[component.ID]component.Config, factories map[component.Type]receiver.Factory) *ReceiverBuilder {
return &ReceiverBuilder{cfgs: cfgs, factories: factories}
}
// CreateTraces creates a Traces receiver based on the settings and config.
func (b *ReceiverBuilder) CreateTraces(ctx context.Context, set receiver.Settings, next consumer.Traces) (receiver.Traces, error) {
if next == nil {
return nil, errNilNextConsumer
}
cfg, existsCfg := b.cfgs[set.ID]
if !existsCfg {
return nil, fmt.Errorf("receiver %q is not configured", set.ID)
}
f, existsFactory := b.factories[set.ID.Type()]
if !existsFactory {
return nil, fmt.Errorf("receiver factory not available for: %q", set.ID)
}
logStabilityLevel(set.Logger, f.TracesStability())
return f.CreateTraces(ctx, set, cfg, next)
}
// CreateMetrics creates a Metrics receiver based on the settings and config.
func (b *ReceiverBuilder) CreateMetrics(ctx context.Context, set receiver.Settings, next consumer.Metrics) (receiver.Metrics, error) {
if next == nil {
return nil, errNilNextConsumer
}
cfg, existsCfg := b.cfgs[set.ID]
if !existsCfg {
return nil, fmt.Errorf("receiver %q is not configured", set.ID)
}
f, existsFactory := b.factories[set.ID.Type()]
if !existsFactory {
return nil, fmt.Errorf("receiver factory not available for: %q", set.ID)
}
logStabilityLevel(set.Logger, f.MetricsStability())
return f.CreateMetrics(ctx, set, cfg, next)
}
// CreateLogs creates a Logs receiver based on the settings and config.
func (b *ReceiverBuilder) CreateLogs(ctx context.Context, set receiver.Settings, next consumer.Logs) (receiver.Logs, error) {
if next == nil {
return nil, errNilNextConsumer
}
cfg, existsCfg := b.cfgs[set.ID]
if !existsCfg {
return nil, fmt.Errorf("receiver %q is not configured", set.ID)
}
f, existsFactory := b.factories[set.ID.Type()]
if !existsFactory {
return nil, fmt.Errorf("receiver factory not available for: %q", set.ID)
}
logStabilityLevel(set.Logger, f.LogsStability())
return f.CreateLogs(ctx, set, cfg, next)
}
// CreateProfiles creates a Profiles receiver based on the settings and config.
func (b *ReceiverBuilder) CreateProfiles(ctx context.Context, set receiver.Settings, next xconsumer.Profiles) (xreceiver.Profiles, error) {
if next == nil {
return nil, errNilNextConsumer
}
cfg, existsCfg := b.cfgs[set.ID]
if !existsCfg {
return nil, fmt.Errorf("receiver %q is not configured", set.ID)
}
recvFact, existsFactory := b.factories[set.ID.Type()]
if !existsFactory {
return nil, fmt.Errorf("receiver factory not available for: %q", set.ID)
}
f, ok := recvFact.(xreceiver.Factory)
if !ok {
return nil, pipeline.ErrSignalNotSupported
}
logStabilityLevel(set.Logger, f.ProfilesStability())
return f.CreateProfiles(ctx, set, cfg, next)
}
func (b *ReceiverBuilder) Factory(componentType component.Type) component.Factory {
return b.factories[componentType]
}
// NewNopReceiverConfigsAndFactories returns a configuration and factories that allows building a new nop receiver.
func NewNopReceiverConfigsAndFactories() (map[component.ID]component.Config, map[component.Type]receiver.Factory) {
nopFactory := receivertest.NewNopFactory()
configs := map[component.ID]component.Config{
component.NewID(NopType): nopFactory.CreateDefaultConfig(),
}
factories := map[component.Type]receiver.Factory{
NopType: nopFactory,
}
return configs, factories
}