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factory.go
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factory.go
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// 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 elasticsearchreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/elasticsearchreceiver"
import (
"context"
"errors"
"time"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/config/confighttp"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/receiver/scraperhelper"
"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/elasticsearchreceiver/internal/metadata"
)
const (
typeStr = "elasticsearch"
stability = component.StabilityLevelBeta
defaultCollectionInterval = 10 * time.Second
defaultHTTPClientTimeout = 10 * time.Second
)
// NewFactory creates a factory for elasticsearch receiver.
func NewFactory() component.ReceiverFactory {
return component.NewReceiverFactory(
typeStr,
createDefaultConfig,
component.WithMetricsReceiver(createMetricsReceiver, stability))
}
// createDefaultConfig creates the default elasticsearchreceiver config.
func createDefaultConfig() config.Receiver {
return &Config{
ScraperControllerSettings: scraperhelper.ScraperControllerSettings{
ReceiverSettings: config.NewReceiverSettings(config.NewComponentID(typeStr)),
CollectionInterval: defaultCollectionInterval,
},
HTTPClientSettings: confighttp.HTTPClientSettings{
Endpoint: defaultEndpoint,
Timeout: defaultHTTPClientTimeout,
},
Metrics: metadata.DefaultMetricsSettings(),
Nodes: []string{"_all"},
}
}
var errConfigNotES = errors.New("config was not an elasticsearch receiver config")
// createMetricsReceiver creates a metrics receiver for scraping elasticsearch metrics.
func createMetricsReceiver(
_ context.Context,
params component.ReceiverCreateSettings,
rConf config.Receiver,
consumer consumer.Metrics,
) (component.MetricsReceiver, error) {
c, ok := rConf.(*Config)
if !ok {
return nil, errConfigNotES
}
es := newElasticSearchScraper(params, c)
scraper, err := scraperhelper.NewScraper(typeStr, es.scrape, scraperhelper.WithStart(es.start))
if err != nil {
return nil, err
}
return scraperhelper.NewScraperControllerReceiver(
&c.ScraperControllerSettings,
params,
consumer,
scraperhelper.AddScraper(scraper),
)
}