forked from open-telemetry/opentelemetry-collector-contrib
/
factory.go
78 lines (66 loc) · 2.55 KB
/
factory.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package opencensusreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/opencensusreceiver"
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/common/localhostgate"
"github.com/open-telemetry/opentelemetry-collector-contrib/internal/sharedcomponent"
"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/opencensusreceiver/internal/metadata"
)
const grpcPort = 55678
// NewFactory creates a new OpenCensus receiver factory.
func NewFactory() receiver.Factory {
return receiver.NewFactory(
metadata.Type,
createDefaultConfig,
receiver.WithTraces(createTracesReceiver, metadata.TracesStability),
receiver.WithMetrics(createMetricsReceiver, metadata.MetricsStability))
}
func createDefaultConfig() component.Config {
return &Config{
ServerConfig: configgrpc.ServerConfig{
NetAddr: confignet.AddrConfig{
Endpoint: localhostgate.EndpointForPort(grpcPort),
Transport: "tcp",
},
// We almost write 0 bytes, so no need to tune WriteBufferSize.
ReadBufferSize: 512 * 1024,
},
}
}
func createTracesReceiver(
_ context.Context,
set receiver.CreateSettings,
cfg component.Config,
nextConsumer consumer.Traces,
) (receiver.Traces, error) {
r := receivers.GetOrAdd(cfg, func() component.Component {
rCfg := cfg.(*Config)
return newOpenCensusReceiver(rCfg, nil, nil, set, rCfg.buildOptions()...)
})
r.Unwrap().(*ocReceiver).traceConsumer = nextConsumer
return r, nil
}
func createMetricsReceiver(
_ context.Context,
set receiver.CreateSettings,
cfg component.Config,
nextConsumer consumer.Metrics,
) (receiver.Metrics, error) {
r := receivers.GetOrAdd(cfg, func() component.Component {
rCfg := cfg.(*Config)
return newOpenCensusReceiver(rCfg, nil, nil, set, rCfg.buildOptions()...)
})
r.Unwrap().(*ocReceiver).metricsConsumer = nextConsumer
return r, nil
}
// This is the map of already created OpenCensus 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 ocReceiver object per configuration.
var receivers = sharedcomponent.NewSharedComponents()