messaging

Documentation

Index

• type Client
• type ClusterConfig
• type KafkaConfig
  • func (k *KafkaConfig) NewKafkaClient(zLogger *zap.Logger, logger bark.Logger, metricScope tally.Scope) Client
• type Producer
  • func NewKafkaProducer(topic string, producer sarama.SyncProducer, logger bark.Logger) Producer
• type TopicConfig
• type TopicList

Types

type Client

type Client interface {
	NewConsumer(currentCluster, sourceCluster, consumerName string, concurrency int) (kafka.Consumer, error)
	NewProducer(sourceCluster string) (Producer, error)
}

Client is the interface used to abstract out interaction with messaging system for replication

type ClusterConfig

type ClusterConfig struct {
	Brokers []string `yaml:"brokers"`
}

ClusterConfig describes the configuration for a single Kafka cluster

type KafkaConfig

type KafkaConfig struct {
	Clusters       map[string]ClusterConfig `yaml:"clusters"`
	Topics         map[string]TopicConfig   `yaml:"topics"`
	ClusterToTopic map[string]TopicList     `yaml:"cadence-cluster-topics"`
}

KafkaConfig describes the configuration needed to connect to all kafka clusters

func (*KafkaConfig) NewKafkaClient

func (k *KafkaConfig) NewKafkaClient(zLogger *zap.Logger, logger bark.Logger, metricScope tally.Scope) Client

NewKafkaClient is used to create an instance of KafkaClient

type Producer

type Producer interface {
	Publish(msg *replicator.ReplicationTask) error
	PublishBatch(msgs []*replicator.ReplicationTask) error
	Close() error
}

Producer is the interface used to send replication tasks to other clusters through replicator

func NewKafkaProducer

func NewKafkaProducer(topic string, producer sarama.SyncProducer, logger bark.Logger) Producer

NewKafkaProducer is used to create the Kafka based producer implementation

type TopicConfig

type TopicConfig struct {
	Cluster string `yaml:"cluster"`
}

TopicConfig describes the mapping from topic to Kafka cluster

type TopicList

type TopicList struct {
	Topic      string `yaml:"topic"`
	RetryTopic string `yaml:"retry-topic"`
	DLQTopic   string `yaml:"dlq-topic"`
}

TopicList describes the topic names for each cluster