/
factory.go
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/
factory.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package otelarrowreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/otelarrowreceiver"
import (
"context"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/config/configgrpc"
"go.opentelemetry.io/collector/config/confignet"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/receiver"
"github.com/open-telemetry/opentelemetry-collector-contrib/internal/sharedcomponent"
"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/otelarrowreceiver/internal/metadata"
)
const (
defaultGRPCEndpoint = "0.0.0.0:4317"
defaultMemoryLimitMiB = 128
)
// NewFactory creates a new OTel-Arrow receiver factory.
func NewFactory() receiver.Factory {
return receiver.NewFactory(
metadata.Type,
createDefaultConfig,
receiver.WithTraces(createTraces, metadata.TracesStability),
receiver.WithMetrics(createMetrics, metadata.MetricsStability),
receiver.WithLogs(createLog, metadata.LogsStability))
}
// createDefaultConfig creates the default configuration for receiver.
func createDefaultConfig() component.Config {
return &Config{
Protocols: Protocols{
GRPC: configgrpc.ServerConfig{
NetAddr: confignet.AddrConfig{
Endpoint: defaultGRPCEndpoint,
Transport: confignet.TransportTypeTCP,
},
// We almost write 0 bytes, so no need to tune WriteBufferSize.
ReadBufferSize: 512 * 1024,
},
Arrow: ArrowSettings{
MemoryLimitMiB: defaultMemoryLimitMiB,
},
},
}
}
// createTraces creates a trace receiver based on provided config.
func createTraces(
_ context.Context,
set receiver.CreateSettings,
cfg component.Config,
nextConsumer consumer.Traces,
) (_ receiver.Traces, err error) {
oCfg := cfg.(*Config)
r := receivers.GetOrAdd(oCfg, func() (comp component.Component) {
comp, err = newOTelArrowReceiver(oCfg, set)
return
})
if err != nil {
return nil, err
}
r.Unwrap().(*otelArrowReceiver).registerTraceConsumer(nextConsumer)
return r, nil
}
// createMetrics creates a metrics receiver based on provided config.
func createMetrics(
_ context.Context,
set receiver.CreateSettings,
cfg component.Config,
consumer consumer.Metrics,
) (_ receiver.Metrics, err error) {
oCfg := cfg.(*Config)
r := receivers.GetOrAdd(oCfg, func() (comp component.Component) {
comp, err = newOTelArrowReceiver(oCfg, set)
return comp
})
if err != nil {
return nil, err
}
r.Unwrap().(*otelArrowReceiver).registerMetricsConsumer(consumer)
return r, nil
}
// createLog creates a log receiver based on provided config.
func createLog(
_ context.Context,
set receiver.CreateSettings,
cfg component.Config,
consumer consumer.Logs,
) (_ receiver.Logs, err error) {
oCfg := cfg.(*Config)
r := receivers.GetOrAdd(oCfg, func() (comp component.Component) {
comp, err = newOTelArrowReceiver(oCfg, set)
return comp
})
if err != nil {
return nil, err
}
r.Unwrap().(*otelArrowReceiver).registerLogsConsumer(consumer)
return r, nil
}
// This is the map of already created OTLP receivers for particular configurations.
// We maintain this map because the Factory is asked trace and metric receivers separately
// when it gets CreateTracesReceiver() and CreateMetricsReceiver() but they must not
// create separate objects, they must use one otelArrowReceiver object per configuration.
// When the receiver is shutdown it should be removed from this map so the same configuration
// can be recreated successfully.
var receivers = sharedcomponent.NewSharedComponents()