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carbon.go
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carbon.go
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// Copyright 2020 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:https://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 datasenders
import (
"context"
"fmt"
"time"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/testbed/testbed"
"go.uber.org/zap"
"github.com/open-telemetry/opentelemetry-collector-contrib/exporter/carbonexporter"
)
// CarbonDataSender implements MetricDataSender for Carbon metrics protocol.
type CarbonDataSender struct {
testbed.DataSenderBase
consumer.Metrics
}
// Ensure CarbonDataSender implements MetricDataSenderOld.
var _ testbed.MetricDataSender = (*CarbonDataSender)(nil)
// NewCarbonDataSender creates a new Carbon metric protocol sender that will send
// to the specified port after Start is called.
func NewCarbonDataSender(port int) *CarbonDataSender {
return &CarbonDataSender{
DataSenderBase: testbed.DataSenderBase{
Port: port,
Host: testbed.DefaultHost,
},
}
}
// Start the sender.
func (cs *CarbonDataSender) Start() error {
factory := carbonexporter.NewFactory()
cfg := &carbonexporter.Config{
ExporterSettings: config.NewExporterSettings(config.NewID(factory.Type())),
Endpoint: cs.GetEndpoint().String(),
Timeout: 5 * time.Second,
}
params := component.ExporterCreateParams{Logger: zap.L()}
exporter, err := factory.CreateMetricsExporter(context.Background(), params, cfg)
if err != nil {
return err
}
cs.Metrics = exporter
return nil
}
// GenConfigYAMLStr returns receiver config for the agent.
func (cs *CarbonDataSender) GenConfigYAMLStr() string {
// Note that this generates a receiver config for agent.
return fmt.Sprintf(`
carbon:
endpoint: %s`, cs.GetEndpoint())
}
// ProtocolName returns protocol name as it is specified in Collector config.
func (cs *CarbonDataSender) ProtocolName() string {
return "carbon"
}