Example #1
0
func (input *NsqInput) Run(runner pipeline.InputRunner,
	helper pipeline.PluginHelper) (err error) {
	var (
		dRunner pipeline.DecoderRunner
		ok      bool
	)

	if input.DecoderName != "" {
		if dRunner, ok = helper.DecoderRunner(input.DecoderName,
			fmt.Sprintf("%s-%s", runner.Name(), input.DecoderName)); !ok {
			return fmt.Errorf("Decoder not found: %s", input.DecoderName)
		}
		input.decoderChan = dRunner.InChan()
	}

	input.runner = runner
	input.packSupply = runner.InChan()

	input.consumer.AddHandler(input)

	err = input.consumer.ConnectToNSQDs(input.NsqdAddrs)
	if err != nil {
		return err
	}
	err = input.consumer.ConnectToNSQLookupds(input.LookupdAddrs)
	if err != nil {
		return err
	}

	<-input.consumer.StoppedChan()

	return nil
}
Example #2
0
func (lsi *LogstreamInput) Run(ir p.InputRunner, h p.PluginHelper, stopChan chan chan bool,
	dRunner p.DecoderRunner) {

	var (
		parser func(ir p.InputRunner, deliver Deliver, stop chan chan bool) error
		err    error
	)

	if lsi.parseFunction == "payload" {
		parser = lsi.payloadParser
	} else if lsi.parseFunction == "messageProto" {
		parser = lsi.messageProtoParser
	}

	// Setup our pack delivery function appropriately for the configuration
	deliver := func(pack *p.PipelinePack) {
		if dRunner == nil {
			ir.Inject(pack)
		} else {
			dRunner.InChan() <- pack
		}
	}

	// Check for more data interval
	interval, _ := time.ParseDuration("250ms")
	tick := time.Tick(interval)

	ok := true
	for ok {
		// Clear our error
		err = nil

		// Attempt to read as many as we can
		err = parser(ir, deliver, stopChan)

		// Save our location after reading as much as we can
		lsi.stream.SavePosition()
		lsi.recordCount = 0

		if err != nil && err != io.EOF {
			ir.LogError(err)
		}

		// Did our parser func get stopped?
		if lsi.stopped != nil {
			ok = false
			continue
		}

		// Wait for our next interval, stop if needed
		select {
		case lsi.stopped = <-stopChan:
			ok = false
		case <-tick:
			continue
		}
	}
	close(lsi.stopped)
}
Example #3
0
func (input *FilePollingInput) Run(runner pipeline.InputRunner,
	helper pipeline.PluginHelper) error {

	var (
		data    []byte
		pack    *pipeline.PipelinePack
		dRunner pipeline.DecoderRunner
		ok      bool
		err     error
	)

	if input.DecoderName != "" {
		if dRunner, ok = helper.DecoderRunner(input.DecoderName,
			fmt.Sprintf("%s-%s", runner.Name(), input.DecoderName)); !ok {
			return fmt.Errorf("Decoder not found: %s", input.DecoderName)
		}
		input.decoderChan = dRunner.InChan()
	}
	input.runner = runner

	hostname := helper.PipelineConfig().Hostname()
	packSupply := runner.InChan()
	tickChan := runner.Ticker()

	for {
		select {
		case <-input.stop:
			return nil
		case <-tickChan:
		}

		data, err = ioutil.ReadFile(input.FilePath)
		if err != nil {
			runner.LogError(fmt.Errorf("Error reading file: %s", err))
			continue
		}

		pack = <-packSupply
		pack.Message.SetUuid(uuid.NewRandom())
		pack.Message.SetTimestamp(time.Now().UnixNano())
		pack.Message.SetType("heka.file.polling")
		pack.Message.SetHostname(hostname)
		pack.Message.SetPayload(string(data))
		if field, err := message.NewField("TickerInterval", int(input.TickerInterval), ""); err != nil {
			runner.LogError(err)
		} else {
			pack.Message.AddField(field)
		}
		if field, err := message.NewField("FilePath", input.FilePath, ""); err != nil {
			runner.LogError(err)
		} else {
			pack.Message.AddField(field)
		}
		input.sendPack(pack)
	}

	return nil
}
Example #4
0
func (ni *NsqInput) Run(ir pipeline.InputRunner, h pipeline.PluginHelper) error {
	// Get the InputRunner's chan to receive empty PipelinePacks
	var pack *pipeline.PipelinePack
	var err error
	var dRunner pipeline.DecoderRunner
	var decoder pipeline.Decoder
	var ok bool
	var e error

	//pos := 0
	//output := make([]*Message, 2)
	packSupply := ir.InChan()

	if ni.conf.Decoder != "" {
		if dRunner, ok = h.DecoderRunner(ni.conf.Decoder); !ok {
			return fmt.Errorf("Decoder not found: %s", ni.conf.Decoder)
		}
		decoder = dRunner.Decoder()
	}

	err = ni.nsqReader.ConnectToLookupd(ni.conf.Address)
	if err != nil {
		ir.LogError(errors.New("ConnectToLookupd failed."))
	}

	header := &message.Header{}

	stopped := false
	//readLoop:
	for !stopped {
		//stopped = true
		select {
		case <-ni.stopChan:
			ir.LogError(errors.New("get ni.stopChan, set stopped=true"))
			stopped = true
		default:
			pack = <-packSupply
			m, ok1 := <-ni.handler.logChan
			if !ok1 {
				stopped = true
				break
			}

			if ni.conf.Serialize {
				if dRunner == nil {
					pack.Recycle()
					ir.LogError(errors.New("Serialize messages require a decoder."))
				}
				//header := &message.Header{}
				_, msgOk := findMessage(m.msg.Body, header, &(pack.MsgBytes))
				if msgOk {
					dRunner.InChan() <- pack
				} else {
					pack.Recycle()
					ir.LogError(errors.New("Can't find Heka message."))
				}
				header.Reset()
			} else {
				//ir.LogError(fmt.Errorf("message body: %s", m.msg.Body))
				pack.Message.SetType("nsq")
				pack.Message.SetPayload(string(m.msg.Body))
				pack.Message.SetTimestamp(time.Now().UnixNano())
				var packs []*pipeline.PipelinePack
				if decoder == nil {
					packs = []*pipeline.PipelinePack{pack}
				} else {
					packs, e = decoder.Decode(pack)
				}
				if packs != nil {
					for _, p := range packs {
						ir.Inject(p)
					}
				} else {
					if e != nil {
						ir.LogError(fmt.Errorf("Couldn't parse Nsq message: %s", m.msg.Body))
					}
					pack.Recycle()
				}
			}
			m.returnChannel <- &nsq.FinishedMessage{m.msg.Id, 0, true}
			/*
			   output[pos] = m
			   pos++
			   if pos == 2 {
			           for pos > 0 {
			                   pos--
			                   m1 := output[pos]
			                   m1.returnChannel <- &nsq.FinishedMessage{m1.msg.Id, 0, true}
			                   output[pos] = nil
			           }
			   }
			*/
		}
	}
	return nil
}