components/otelopscol/receiver/mongodbreceiver/factory.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 mongodbreceiver // import "github.com/GoogleCloudPlatform/opentelemetry-operations-collector/components/otelopscol/receiver/mongodbreceiver"

import (
	"context"
	"time"

	"go.opentelemetry.io/collector/component"
	"go.opentelemetry.io/collector/config/confignet"
	"go.opentelemetry.io/collector/config/configtls"
	"go.opentelemetry.io/collector/consumer"
	"go.opentelemetry.io/collector/receiver"
	"go.opentelemetry.io/collector/scraper"
	"go.opentelemetry.io/collector/scraper/scraperhelper"

	"github.com/GoogleCloudPlatform/opentelemetry-operations-collector/components/otelopscol/receiver/mongodbreceiver/internal/metadata"
)

// NewFactory creates a factory for mongodb receiver.
func NewFactory() receiver.Factory {
	return receiver.NewFactory(
		metadata.Type,
		createDefaultConfig,
		receiver.WithMetrics(createMetricsReceiver, metadata.MetricsStability))
}

func createDefaultConfig() component.Config {
	return &Config{
		ControllerConfig: scraperhelper.ControllerConfig{
			CollectionInterval: time.Minute,
		},
		Timeout: time.Minute,
		Hosts: []confignet.AddrConfig{
			{
				Endpoint:  "localhost:27017",
				Transport: confignet.TransportTypeTCP,
			},
		},
		Metrics:      metadata.DefaultMetricsConfig(),
		ClientConfig: configtls.ClientConfig{},
	}
}

func createMetricsReceiver(
	_ context.Context,
	params receiver.Settings,
	rConf component.Config,
	consumer consumer.Metrics,
) (receiver.Metrics, error) {
	cfg := rConf.(*Config)
	ms := newMongodbScraper(params, cfg)

	scp, err := scraper.NewMetrics(ms.scrape,
		scraper.WithStart(ms.start),
		scraper.WithShutdown(ms.shutdown))
	if err != nil {
		return nil, err
	}

	return scraperhelper.NewMetricsController(
		&cfg.ControllerConfig, params, consumer,
		scraperhelper.AddScraper(metadata.Type, scp),
	)
}