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config.go
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config.go
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// Copyright (c) 2018 The Jaeger 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 producer
import (
"time"
"github.com/Shopify/sarama"
"github.com/jaegertracing/jaeger/pkg/kafka/auth"
)
// Builder builds a new kafka producer
type Builder interface {
NewProducer() (sarama.AsyncProducer, error)
}
// Configuration describes the configuration properties needed to create a Kafka producer
type Configuration struct {
Brokers []string
RequiredAcks sarama.RequiredAcks
Compression sarama.CompressionCodec
CompressionLevel int
ProtocolVersion string
BatchLinger time.Duration
BatchSize int
BatchMaxMessages int
auth.AuthenticationConfig
}
// NewProducer creates a new asynchronous kafka producer
func (c *Configuration) NewProducer() (sarama.AsyncProducer, error) {
saramaConfig := sarama.NewConfig()
saramaConfig.Producer.RequiredAcks = c.RequiredAcks
saramaConfig.Producer.Compression = c.Compression
saramaConfig.Producer.CompressionLevel = c.CompressionLevel
saramaConfig.Producer.Return.Successes = true
saramaConfig.Producer.Flush.Bytes = c.BatchSize
saramaConfig.Producer.Flush.Frequency = c.BatchLinger
saramaConfig.Producer.Flush.MaxMessages = c.BatchMaxMessages
if len(c.ProtocolVersion) > 0 {
ver, err := sarama.ParseKafkaVersion(c.ProtocolVersion)
if err != nil {
return nil, err
}
saramaConfig.Version = ver
}
if err := c.AuthenticationConfig.SetConfiguration(saramaConfig); err != nil {
return nil, err
}
return sarama.NewAsyncProducer(c.Brokers, saramaConfig)
}