func parseAndValidateArgs() *kafka.MirrorMakerConfig {
flag.Var(&consumerConfig, "consumer.config", "Path to consumer configuration file.")
flag.Parse()
runtime.GOMAXPROCS(*maxProcs)
if (*whitelist != "" && *blacklist != "") || (*whitelist == "" && *blacklist == "") {
fmt.Println("Exactly one of whitelist or blacklist is required.")
os.Exit(1)
}
if *producerConfig == "" {
fmt.Println("Producer config is required.")
os.Exit(1)
}
if len(consumerConfig) == 0 {
fmt.Println("At least one consumer config is required.")
os.Exit(1)
}
if *queueSize < 0 {
fmt.Println("Queue size should be equal or greater than 0")
os.Exit(1)
}
config := kafka.NewMirrorMakerConfig()
config.Blacklist = *blacklist
config.Whitelist = *whitelist
config.ChannelSize = *queueSize
config.ConsumerConfigs = []string(consumerConfig)
config.NumProducers = *numProducers
config.NumStreams = *numStreams
config.PreservePartitions = *preservePartitions
config.PreserveOrder = *preserveOrder
config.ProducerConfig = *producerConfig
config.TopicPrefix = *prefix
if *schemaRegistryUrl != "" {
config.KeyEncoder = avro.NewKafkaAvroEncoder(*schemaRegistryUrl).Encode
config.ValueEncoder = avro.NewKafkaAvroEncoder(*schemaRegistryUrl).Encode
config.KeyDecoder = avro.NewKafkaAvroDecoder(*schemaRegistryUrl)
config.ValueDecoder = avro.NewKafkaAvroDecoder(*schemaRegistryUrl)
}
return config
}
func (e *MirrorMakerExecutor) startMirrorMaker() {
consumerConfigs := make([]string, 0)
rawConsumerConfigs := strings.Split(e.config["consumer.config"], ",")
for _, config := range rawConsumerConfigs {
resourceTokens := strings.Split(config, "/")
consumerConfigs = append(consumerConfigs, resourceTokens[len(resourceTokens)-1])
}
rawProducerConfig := strings.Split(e.config["producer.config"], "/")
producerConfig := rawProducerConfig[len(rawProducerConfig)-1]
mmConfig := kafka.NewMirrorMakerConfig()
e.config.SetIntConfig("num.producers", &mmConfig.NumProducers)
e.config.SetIntConfig("num.streams", &mmConfig.NumStreams)
e.config.SetStringConfig("prefix", &mmConfig.TopicPrefix)
e.config.SetIntConfig("queue.size", &mmConfig.ChannelSize)
e.config.SetStringConfig("whitelist", &mmConfig.Whitelist)
e.config.SetStringConfig("blacklist", &mmConfig.Blacklist)
mmConfig.ProducerConfig = producerConfig
mmConfig.ConsumerConfigs = consumerConfigs
e.mirrorMaker = kafka.NewMirrorMaker(mmConfig)
e.mirrorMaker.Start()
}