Golang PluginConfig.HasValue方法代码示例

// 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 formatter with values from a plugin config.
func (format *JSON) Configure(conf core.PluginConfig) error {
	format.parser = shared.NewTransitionParser()
	format.state = jsonReadObject
	format.initState = conf.GetString("JSONStartState", "")
	format.timeRead = conf.GetString("JSONTimestampRead", "20060102150405")
	format.timeWrite = conf.GetString("JSONTimestampWrite", "2006-01-02 15:04:05 MST")
	format.parseLock = new(sync.Mutex)

	if !conf.HasValue("JSONDirectives") {
		Log.Warning.Print("JSON formatter has no JSONDirectives setting")
		return nil // ### return, no directives ###
	}

	directiveStrings := conf.GetStringArray("JSONDirectives", []string{})
	if len(directiveStrings) == 0 {
		Log.Warning.Print("JSON formatter has no directives")
		return nil // ### return, no directives ###
	}

	// Parse directives

	parserFunctions := make(map[string]shared.ParsedFunc)
	parserFunctions["key"] = format.readKey
	parserFunctions["val"] = format.readValue
	parserFunctions["esc"] = format.readEscaped
	parserFunctions["dat"] = format.readDate
	parserFunctions["arr"] = format.readArray
	parserFunctions["obj"] = format.readObject
	parserFunctions["end"] = format.readEnd
	parserFunctions["arr+val"] = format.readArrayValue
	parserFunctions["arr+esc"] = format.readArrayEscaped
	parserFunctions["val+end"] = format.readValueEnd
	parserFunctions["esc+end"] = format.readEscapedEnd
	parserFunctions["dat+end"] = format.readDateEnd

	directives := []shared.TransitionDirective{}
	for _, dirString := range directiveStrings {
		directive, err := shared.ParseTransitionDirective(dirString, parserFunctions)
		if err != nil {
			return fmt.Errorf("%s: %s", err.Error(), dirString) // ### return, malformed directive ###
		}
		if format.initState == "" {
			format.initState = directive.State
		}
		directives = append(directives, directive)
	}

	format.parser.AddDirectives(directives)
	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
}

// Configure initializes this producer with values from a plugin config.
func (prod *Kafka) Configure(conf core.PluginConfig) error {
	err := prod.ProducerBase.Configure(conf)
	if err != nil {
		return err
	}

	if !conf.HasValue("Servers") {
		return core.NewProducerError("No servers configured for producer.Kafka")
	}

	prod.servers = conf.GetStringArray("Servers", []string{})
	prod.topic = conf.GetStreamMap("Topic", "")
	prod.clientID = conf.GetString("ClientId", "gollum")

	prod.config = kafka.NewConfig()
	prod.config.ClientID = conf.GetString("ClientId", "gollum")
	prod.config.ChannelBufferSize = conf.GetInt("MessageBufferCount", 256)

	prod.config.Net.MaxOpenRequests = conf.GetInt("MaxOpenRequests", 5)
	prod.config.Net.DialTimeout = time.Duration(conf.GetInt("ServerTimeoutSec", 30)) * time.Second
	prod.config.Net.ReadTimeout = prod.config.Net.DialTimeout
	prod.config.Net.WriteTimeout = prod.config.Net.DialTimeout

	prod.config.Metadata.Retry.Max = conf.GetInt("ElectRetries", 3)
	prod.config.Metadata.Retry.Backoff = time.Duration(conf.GetInt("ElectTimeoutMs", 250)) * time.Millisecond
	prod.config.Metadata.RefreshFrequency = time.Duration(conf.GetInt("MetadataRefreshMs", 10000)) * time.Millisecond

	prod.config.Producer.MaxMessageBytes = conf.GetInt("BatchSizeMaxKB", 1<<10) << 10
	prod.config.Producer.RequiredAcks = kafka.RequiredAcks(conf.GetInt("RequiredAcks", int(kafka.WaitForLocal)))
	prod.config.Producer.Timeout = time.Duration(conf.GetInt("TimoutMs", 1500)) * time.Millisecond

	prod.config.Producer.Return.Errors = true
	prod.config.Producer.Return.Successes = false

	switch strings.ToLower(conf.GetString("Compression", compressNone)) {
	default:
		fallthrough
	case compressNone:
		prod.config.Producer.Compression = kafka.CompressionNone
	case compressGZIP:
		prod.config.Producer.Compression = kafka.CompressionGZIP
	case compressSnappy:
		prod.config.Producer.Compression = kafka.CompressionSnappy
	}

	switch strings.ToLower(conf.GetString("Partitioner", partRandom)) {
	case partRandom:
		prod.config.Producer.Partitioner = kafka.NewRandomPartitioner
	case partRoundrobin:
		prod.config.Producer.Partitioner = kafka.NewRoundRobinPartitioner
	default:
		fallthrough
	case partHash:
		prod.config.Producer.Partitioner = kafka.NewHashPartitioner
	}

	prod.config.Producer.Flush.Bytes = conf.GetInt("BatchSizeByte", 8192)
	prod.config.Producer.Flush.Messages = conf.GetInt("BatchMinCount", 1)
	prod.config.Producer.Flush.Frequency = time.Duration(conf.GetInt("BatchTimeoutSec", 3)) * time.Second
	prod.config.Producer.Flush.MaxMessages = conf.GetInt("BatchMaxCount", 0)
	prod.config.Producer.Retry.Max = conf.GetInt("SendRetries", 3)
	prod.config.Producer.Retry.Backoff = time.Duration(conf.GetInt("SendTimeoutMs", 100)) * time.Millisecond
	return nil
}