// Configure initializes this consumer with values from a plugin config.
func (cons *File) Configure(conf core.PluginConfig) error {
err := cons.ConsumerBase.Configure(conf)
if err != nil {
return err
}
if !conf.HasValue("File") {
return core.NewConsumerError("No file configured for consumer.File")
}
cons.file = nil
cons.fileName = conf.GetString("File", "")
cons.offsetFileName = conf.GetString("OffsetFile", "")
cons.delimiter = shared.Unescape(conf.GetString("Delimiter", "\n"))
switch strings.ToLower(conf.GetString("DefaultOffset", fileOffsetEnd)) {
default:
fallthrough
case fileOffsetEnd:
cons.seek = 2
cons.seekOffset = 0
case fileOffsetStart:
cons.seek = 1
cons.seekOffset = 0
}
return nil
}
// Configure initializes this consumer with values from a plugin config.
func (cons *Kafka) Configure(conf core.PluginConfig) error {
err := cons.ConsumerBase.Configure(conf)
if err != nil {
return err
}
if !conf.HasValue("Servers") {
return core.NewConsumerError("No servers configured for consumer.Kafka")
}
cons.servers = conf.GetStringArray("Servers", []string{})
cons.topic = conf.GetString("Topic", "default")
cons.offsetFile = conf.GetString("OffsetFile", "")
cons.persistTimeout = time.Duration(conf.GetInt("PresistTimoutMs", 5000)) * time.Millisecond
cons.offsets = make(map[int32]int64)
cons.MaxPartitionID = 0
cons.config = kafka.NewConfig()
cons.config.ClientID = conf.GetString("ClientId", "gollum")
cons.config.ChannelBufferSize = conf.GetInt("MessageBufferCount", 256)
cons.config.Net.MaxOpenRequests = conf.GetInt("MaxOpenRequests", 5)
cons.config.Net.DialTimeout = time.Duration(conf.GetInt("ServerTimeoutSec", 30)) * time.Second
cons.config.Net.ReadTimeout = cons.config.Net.DialTimeout
cons.config.Net.WriteTimeout = cons.config.Net.DialTimeout
cons.config.Metadata.Retry.Max = conf.GetInt("ElectRetries", 3)
cons.config.Metadata.Retry.Backoff = time.Duration(conf.GetInt("ElectTimeoutMs", 250)) * time.Millisecond
cons.config.Metadata.RefreshFrequency = time.Duration(conf.GetInt("MetadataRefreshMs", 10000)) * time.Millisecond
cons.config.Consumer.Fetch.Min = int32(conf.GetInt("MinFetchSizeByte", 1))
cons.config.Consumer.Fetch.Max = int32(conf.GetInt("MaxFetchSizeByte", 0))
cons.config.Consumer.Fetch.Default = int32(conf.GetInt("MaxFetchSizeByte", 32768))
cons.config.Consumer.MaxWaitTime = time.Duration(conf.GetInt("FetchTimeoutMs", 250)) * time.Millisecond
offsetValue := strings.ToLower(conf.GetString("DefaultOffset", kafkaOffsetNewest))
switch offsetValue {
case kafkaOffsetNewest:
cons.defaultOffset = kafka.OffsetNewest
case kafkaOffsetOldest:
cons.defaultOffset = kafka.OffsetOldest
default:
cons.defaultOffset, _ = strconv.ParseInt(offsetValue, 10, 64)
fileContents, err := ioutil.ReadFile(cons.offsetFile)
if err != nil {
return err
}
// Decode the JSON file into the partition -> offset map
encodedOffsets := make(map[string]int64)
err = json.Unmarshal(fileContents, &encodedOffsets)
if err != nil {
return err
}
for k, v := range encodedOffsets {
id, err := strconv.Atoi(k)
if err != nil {
return err
}
cons.offsets[int32(id)] = v
}
}
return nil
}