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pulsar_exporter.go
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pulsar_exporter.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package fkpulsarexporter // import "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/pulsarexporter"
import (
"context"
"fmt"
"github.com/apache/pulsar-client-go/pulsar"
"go.opentelemetry.io/collector/consumer/consumererror"
"go.opentelemetry.io/collector/exporter"
"go.opentelemetry.io/collector/pdata/plog"
"go.opentelemetry.io/collector/pdata/pmetric"
"go.opentelemetry.io/collector/pdata/ptrace"
"go.uber.org/multierr"
"go.uber.org/zap"
)
var errUnrecognizedEncoding = fmt.Errorf("unrecognized encoding")
type PulsarTracesProducer struct {
client pulsar.Client
producer pulsar.Producer
topic string
marshaler TracesMarshaler
logger *zap.Logger
}
func (e *PulsarTracesProducer) tracesPusher(ctx context.Context, td ptrace.Traces) error {
messages, err := e.marshaler.Marshal(td, e.topic)
if err != nil {
return consumererror.NewPermanent(err)
}
var errs error
for _, message := range messages {
e.producer.SendAsync(ctx, message, func(_ pulsar.MessageID, _ *pulsar.ProducerMessage, err error) {
if err != nil {
errs = multierr.Append(errs, err)
}
})
}
return errs
}
func (e *PulsarTracesProducer) Close(context.Context) error {
e.producer.Close()
e.client.Close()
return nil
}
type PulsarMetricsProducer struct {
client pulsar.Client
producer pulsar.Producer
topic string
marshaler MetricsMarshaler
logger *zap.Logger
}
func (e *PulsarMetricsProducer) metricsDataPusher(ctx context.Context, md pmetric.Metrics) error {
messages, err := e.marshaler.Marshal(md, e.topic)
if err != nil {
return consumererror.NewPermanent(err)
}
var errs error
for _, message := range messages {
e.producer.SendAsync(ctx, message, func(_ pulsar.MessageID, _ *pulsar.ProducerMessage, err error) {
if err != nil {
errs = multierr.Append(errs, err)
}
})
}
return errs
}
func (e *PulsarMetricsProducer) Close(context.Context) error {
e.producer.Close()
e.client.Close()
return nil
}
type PulsarLogsProducer struct {
client pulsar.Client
producer pulsar.Producer
topic string
marshaler LogsMarshaler
logger *zap.Logger
}
func (e *PulsarLogsProducer) logsDataPusher(ctx context.Context, ld plog.Logs) error {
messages, err := e.marshaler.Marshal(ld, e.topic)
if err != nil {
return consumererror.NewPermanent(err)
}
var errs error
for _, message := range messages {
e.producer.SendAsync(ctx, message, func(_ pulsar.MessageID, _ *pulsar.ProducerMessage, err error) {
if err != nil {
errs = multierr.Append(errs, err)
}
})
}
return errs
}
func (e *PulsarLogsProducer) Close(context.Context) error {
e.producer.Close()
e.client.Close()
return nil
}
func newPulsarProducer(config Config) (pulsar.Client, pulsar.Producer, error) {
options := config.clientOptions()
client, err := pulsar.NewClient(options)
if err != nil {
return nil, nil, err
}
producerOptions := config.getProducerOptions()
producer, err := client.CreateProducer(producerOptions)
if err != nil {
return nil, nil, err
}
return client, producer, nil
}
func newMetricsExporter(config Config, set exporter.CreateSettings, marshalers map[string]MetricsMarshaler) (*PulsarMetricsProducer, error) {
marshaler := marshalers[config.Encoding]
if marshaler == nil {
return nil, errUnrecognizedEncoding
}
client, producer, err := newPulsarProducer(config)
if err != nil {
return nil, err
}
return &PulsarMetricsProducer{
client: client,
producer: producer,
topic: config.Topic,
marshaler: marshaler,
logger: set.Logger,
}, nil
}
func newTracesExporter(config Config, set exporter.CreateSettings, marshalers map[string]TracesMarshaler) (*PulsarTracesProducer, error) {
marshaler := marshalers[config.Encoding]
if marshaler == nil {
return nil, errUnrecognizedEncoding
}
client, producer, err := newPulsarProducer(config)
if err != nil {
return nil, err
}
return &PulsarTracesProducer{
client: client,
producer: producer,
topic: config.Topic,
marshaler: marshaler,
logger: set.Logger,
}, nil
}
func newLogsExporter(config Config, set exporter.CreateSettings, marshalers map[string]LogsMarshaler) (*PulsarLogsProducer, error) {
marshaler := marshalers[config.Encoding]
if marshaler == nil {
return nil, errUnrecognizedEncoding
}
client, producer, err := newPulsarProducer(config)
if err != nil {
return nil, err
}
return &PulsarLogsProducer{
client: client,
producer: producer,
topic: config.Topic,
marshaler: marshaler,
logger: set.Logger,
}, nil
}