Golang Message.GetLogger方法代碼示例

func (self *LogOutput) Run(or OutputRunner, h PluginHelper) (err error) {
	inChan := or.InChan()

	var (
		pack *PipelinePack
		msg  *message.Message
	)
	for plc := range inChan {
		pack = plc.Pack
		msg = pack.Message
		if self.payloadOnly {
			log.Printf(msg.GetPayload())
		} else {
			log.Printf("<\n\tTimestamp: %s\n"+
				"\tType: %s\n"+
				"\tHostname: %s\n"+
				"\tPid: %d\n"+
				"\tUUID: %s\n"+
				"\tLogger: %s\n"+
				"\tPayload: %s\n"+
				"\tEnvVersion: %s\n"+
				"\tSeverity: %d\n"+
				"\tFields: %+v\n"+
				"\tCaptures: %v\n>\n",
				time.Unix(0, msg.GetTimestamp()), msg.GetType(),
				msg.GetHostname(), msg.GetPid(), msg.GetUuidString(),
				msg.GetLogger(), msg.GetPayload(), msg.GetEnvVersion(),
				msg.GetSeverity(), msg.Fields, plc.Captures)
		}
		pack.Recycle()
	}
	return
}

func (c *CleanMessageFormatter) Format(m *message.Message) (doc []byte, err error) {
	buf := bytes.Buffer{}
	buf.WriteString(`{`)
	// Iterates over fields configured for clean formating
	for _, f := range c.fields {
		switch strings.ToLower(f) {
		case "uuid":
			writeField(&buf, f, strconv.Quote(m.GetUuidString()))
		case "timestamp":
			t := time.Unix(0, m.GetTimestamp()).UTC()
			writeField(&buf, f, strconv.Quote(t.Format(c.timestampFormat)))
		case "type":
			writeField(&buf, f, strconv.Quote(m.GetType()))
		case "logger":
			writeField(&buf, f, strconv.Quote(m.GetLogger()))
		case "severity":
			writeField(&buf, f, strconv.Itoa(int(m.GetSeverity())))
		case "payload":
			if utf8.ValidString(m.GetPayload()) {
				writeField(&buf, f, strconv.Quote(m.GetPayload()))
			}
		case "envversion":
			writeField(&buf, f, strconv.Quote(m.GetEnvVersion()))
		case "pid":
			writeField(&buf, f, strconv.Itoa(int(m.GetPid())))
		case "hostname":
			writeField(&buf, f, strconv.Quote(m.GetHostname()))
		case "fields":
			for _, field := range m.Fields {
				switch field.GetValueType() {
				case message.Field_STRING:
					writeField(&buf, *field.Name, strconv.Quote(field.GetValue().(string)))
				case message.Field_BYTES:
					data := field.GetValue().([]byte)[:]
					writeField(&buf, *field.Name, strconv.Quote(base64.StdEncoding.EncodeToString(data)))
				case message.Field_INTEGER:
					writeField(&buf, *field.Name, strconv.FormatInt(field.GetValue().(int64), 10))
				case message.Field_DOUBLE:
					writeField(&buf, *field.Name, strconv.FormatFloat(field.GetValue().(float64),
						'g', -1, 64))
				case message.Field_BOOL:
					writeField(&buf, *field.Name, strconv.FormatBool(field.GetValue().(bool)))
				}
			}
		default:
			// Search fo a given fields in the message
			err = fmt.Errorf("Unable to find field: %s", f)
			return
		}
	}
	buf.WriteString(`}`)
	doc = buf.Bytes()
	return
}

func (self *DashboardOutput) Run(or OutputRunner, h PluginHelper) (err error) {
	inChan := or.InChan()
	ticker := or.Ticker()

	var (
		ok   = true
		plc  *PipelineCapture
		pack *PipelinePack
		msg  *message.Message
	)
	for ok {
		select {
		case plc, ok = <-inChan:
			if !ok {
				break
			}
			pack = plc.Pack
			msg = pack.Message
			switch msg.GetType() {
			case "heka.all-report":
				fn := path.Join(self.workingDirectory, "heka_report.json")
				overwriteFile(fn, msg.GetPayload())
			case "heka.sandbox-output":
				tmp, ok := msg.GetFieldValue("payload_type")
				if ok {
					if pt, ok := tmp.(string); ok && pt == "cbuf" {
						html := path.Join(self.workingDirectory, msg.GetLogger()+".html")
						_, err := os.Stat(html)
						if err != nil {
							overwriteFile(html, fmt.Sprintf(getCbufTemplate(), msg.GetLogger(), msg.GetLogger()))
						}
						fn := path.Join(self.workingDirectory, msg.GetLogger()+"."+pt)
						overwriteFile(fn, msg.GetPayload())
					}
				}
			case "heka.sandbox-terminated":
				fn := path.Join(self.workingDirectory, self.terminationFile)
				if file, err := os.OpenFile(fn, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644); err == nil {
					line := fmt.Sprintf("%d\t%s\t%v\n", msg.GetTimestamp()/1e9, msg.GetLogger(), msg.GetPayload())
					file.WriteString(line)
					file.Close()
				}
			}
			plc.Pack.Recycle()
		case <-ticker:
			go h.PipelineConfig().allReportsMsg()
		}
	}
	return
}

func (n *NagiosOutput) Run(or OutputRunner, h PluginHelper) (err error) {
	inChan := or.InChan()

	var (
		pack    *PipelinePack
		msg     *message.Message
		payload string
	)

	for pack = range inChan {
		msg = pack.Message
		payload = msg.GetPayload()
		pos := strings.IndexAny(payload, ":")
		state := "3" // UNKNOWN
		if pos != -1 {
			switch payload[:pos] {
			case "OK":
				state = "0"
			case "WARNING":
				state = "1"
			case "CRITICAL":
				state = "2"
			}
		}

		data := url.Values{
			"cmd_typ":          {"30"}, // PROCESS_SERVICE_CHECK_RESULT
			"cmd_mod":          {"2"},  // CMDMODE_COMMIT
			"host":             {msg.GetHostname()},
			"service":          {msg.GetLogger()},
			"plugin_state":     {state},
			"plugin_output":    {payload[pos+1:]},
			"performance_data": {""}}
		req, err := http.NewRequest("POST", n.conf.Url,
			strings.NewReader(data.Encode()))
		if err == nil {
			req.SetBasicAuth(n.conf.Username, n.conf.Password)
			if resp, err := n.client.Do(req); err == nil {
				resp.Body.Close()
			} else {
				or.LogError(err)
			}
		} else {
			or.LogError(err)
		}
		pack.Recycle()
	}
	return
}

// Replaces a date pattern (ex: %{2012.09.19} in the index name
func interpolateFlag(e *ElasticSearchCoordinates, m *message.Message, name string) (
	interpolatedValue string, err error) {

	iSlice := strings.Split(name, "%{")

	for i, element := range iSlice {
		elEnd := strings.Index(element, "}")

		if elEnd > -1 {
			elVal := element[:elEnd]
			switch elVal {
			case "Type":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], m.GetType(), -1)
			case "Hostname":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], m.GetHostname(), -1)
			case "Pid":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1],
					strconv.Itoa(int(m.GetPid())), -1)
			case "UUID":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], m.GetUuidString(), -1)
			case "Logger":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], m.GetLogger(), -1)
			case "EnvVersion":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], m.GetEnvVersion(), -1)
			case "Severity":
				iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1],
					strconv.Itoa(int(m.GetSeverity())), -1)
			default:
				if fname, ok := m.GetFieldValue(elVal); ok {
					iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], fname.(string), -1)
				} else {
					var t time.Time
					if e.ESIndexFromTimestamp && m.Timestamp != nil {
						t = time.Unix(0, *m.Timestamp).UTC()
					} else {
						t = time.Now().UTC()
					}
					iSlice[i] = strings.Replace(iSlice[i], element[:elEnd+1], t.Format(elVal), -1)
				}
			}
			if iSlice[i] == elVal {
				err = fmt.Errorf("Could not interpolate field from config: %s", name)
			}
		}
	}
	interpolatedValue = strings.Join(iSlice, "")
	return
}

func (n *NagiosOutput) Run(or OutputRunner, h PluginHelper) (err error) {
	inChan := or.InChan()

	var (
		pack    *PipelinePack
		msg     *message.Message
		payload string
	)

	for pack = range inChan {
		msg = pack.Message
		payload = msg.GetPayload()
		pos := strings.IndexAny(payload, ":")
		state := "3" // UNKNOWN
		if pos != -1 {
			switch payload[:pos] {
			case "OK":
				state = "0"
			case "WARNING":
				state = "1"
			case "CRITICAL":
				state = "2"
			}
		}

		host := n.conf.NagiosHost
		if host == "" {
			host = msg.GetHostname()
		}
		service_description := n.conf.NagiosServiceDescription
		if service_description == "" {
			service_description = msg.GetLogger()
		}
		payload = payload[pos+1:]

		err = n.submitter(host, service_description, state, payload)
		if err != nil {
			err = NewRetryMessageError(err.Error())
			pack.Recycle(err)
			continue
		}
		or.UpdateCursor(pack.QueueCursor)
		pack.Recycle(nil)
	}
	return
}

func getMessageVariable(msg *message.Message, mvar *messageVariable) string {
	if mvar.header {
		switch mvar.name {
		case "Type":
			return msg.GetType()
		case "Logger":
			return msg.GetLogger()
		case "Hostname":
			return msg.GetHostname()
		case "Payload":
			return msg.GetPayload()
		default:
			return ""
		}
	} else {
		return getFieldAsString(msg, mvar)
	}
}

func (self *DashboardOutput) Run(or OutputRunner, h PluginHelper) (err error) {
	inChan := or.InChan()
	ticker := or.Ticker()
	go self.starterFunc(self)

	var (
		ok   = true
		pack *PipelinePack
		msg  *message.Message
	)

	// Maps sandbox names to plugin list items used to generate the
	// sandboxes.json file.
	sandboxes := make(map[string]*DashPluginListItem)
	sbxsLock := new(sync.Mutex)
	reNotWord, _ := regexp.Compile("\\W")
	for ok {
		select {
		case pack, ok = <-inChan:
			if !ok {
				break
			}
			msg = pack.Message
			switch msg.GetType() {
			case "heka.all-report":
				fn := filepath.Join(self.dataDirectory, "heka_report.json")
				overwriteFile(fn, msg.GetPayload())
				sbxsLock.Lock()
				if err := overwritePluginListFile(self.dataDirectory, sandboxes); err != nil {
					or.LogError(fmt.Errorf("Can't write plugin list file to '%s': %s",
						self.dataDirectory, err))
				}
				sbxsLock.Unlock()
			case "heka.sandbox-output":
				tmp, _ := msg.GetFieldValue("payload_type")
				if payloadType, ok := tmp.(string); ok {
					var payloadName, nameExt string
					tmp, _ := msg.GetFieldValue("payload_name")
					if payloadName, ok = tmp.(string); ok {
						nameExt = reNotWord.ReplaceAllString(payloadName, "")
					}
					if len(nameExt) > 64 {
						nameExt = nameExt[:64]
					}
					nameExt = "." + nameExt

					payloadType = reNotWord.ReplaceAllString(payloadType, "")
					filterName := msg.GetLogger()
					fn := filterName + nameExt + "." + payloadType
					ofn := filepath.Join(self.dataDirectory, fn)
					relPath := path.Join(self.relDataPath, fn) // Used for generating HTTP URLs.
					overwriteFile(ofn, msg.GetPayload())
					sbxsLock.Lock()
					if listItem, ok := sandboxes[filterName]; !ok {
						// First time we've seen this sandbox, add it to the set.
						output := &DashPluginOutput{
							Name:     payloadName,
							Filename: relPath,
						}
						sandboxes[filterName] = &DashPluginListItem{
							Name:    filterName,
							Outputs: []*DashPluginOutput{output},
						}
					} else {
						// We've seen the sandbox, see if we already have this output.
						found := false
						for _, output := range listItem.Outputs {
							if output.Name == payloadName {
								found = true
								break
							}
						}
						if !found {
							output := &DashPluginOutput{
								Name:     payloadName,
								Filename: relPath,
							}
							listItem.Outputs = append(listItem.Outputs, output)
						}
					}
					sbxsLock.Unlock()
				}
			case "heka.sandbox-terminated":
				fn := filepath.Join(self.dataDirectory, "heka_sandbox_termination.tsv")
				filterName := msg.GetLogger()
				if file, err := os.OpenFile(fn, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644); err == nil {
					var line string
					if _, ok := msg.GetFieldValue("ProcessMessageCount"); !ok {
						line = fmt.Sprintf("%d\t%s\t%v\n", msg.GetTimestamp()/1e9,
							msg.GetLogger(), msg.GetPayload())
					} else {
						pmc, _ := msg.GetFieldValue("ProcessMessageCount")
						pms, _ := msg.GetFieldValue("ProcessMessageSamples")
						pmd, _ := msg.GetFieldValue("ProcessMessageAvgDuration")
						mad, _ := msg.GetFieldValue("MatchAvgDuration")
						fcl, _ := msg.GetFieldValue("FilterChanLength")
						mcl, _ := msg.GetFieldValue("MatchChanLength")
						rcl, _ := msg.GetFieldValue("RouterChanLength")
						line = fmt.Sprintf("%d\t%s\t%v"+
							" ProcessMessageCount:%v"+
//.........這裏部分代碼省略.........

func (s *SandboxDecoder) SetDecoderRunner(dr pipeline.DecoderRunner) {
	if s.sb != nil {
		return // no-op already initialized
	}

	s.dRunner = dr
	var original *message.Message

	switch s.sbc.ScriptType {
	case "lua":
		s.sb, s.err = lua.CreateLuaSandbox(s.sbc)
	default:
		s.err = fmt.Errorf("unsupported script type: %s", s.sbc.ScriptType)
	}

	if s.err == nil {
		s.preservationFile = filepath.Join(s.pConfig.Globals.PrependBaseDir(DATA_DIR),
			dr.Name()+DATA_EXT)
		if s.sbc.PreserveData && fileExists(s.preservationFile) {
			s.err = s.sb.Init(s.preservationFile, "decoder")
		} else {
			s.err = s.sb.Init("", "decoder")
		}
	}
	if s.err != nil {
		dr.LogError(s.err)
		if s.sb != nil {
			s.sb.Destroy("")
			s.sb = nil
		}
		s.pConfig.Globals.ShutDown()
		return
	}

	s.sb.InjectMessage(func(payload, payload_type, payload_name string) int {
		if s.pack == nil {
			s.pack = dr.NewPack()
			if original == nil && len(s.packs) > 0 {
				original = s.packs[0].Message // payload injections have the original header data in the first pack
			}
		} else {
			original = nil // processing a new message, clear the old message
		}
		if len(payload_type) == 0 { // heka protobuf message
			if original == nil {
				original = new(message.Message)
				copyMessageHeaders(original, s.pack.Message) // save off the header values since unmarshal will wipe them out
			}
			if nil != proto.Unmarshal([]byte(payload), s.pack.Message) {
				return 1
			}
			if s.tz != time.UTC {
				const layout = "2006-01-02T15:04:05.999999999" // remove the incorrect UTC tz info
				t := time.Unix(0, s.pack.Message.GetTimestamp())
				t = t.In(time.UTC)
				ct, _ := time.ParseInLocation(layout, t.Format(layout), s.tz)
				s.pack.Message.SetTimestamp(ct.UnixNano())
			}
		} else {
			s.pack.Message.SetPayload(payload)
			ptype, _ := message.NewField("payload_type", payload_type, "file-extension")
			s.pack.Message.AddField(ptype)
			pname, _ := message.NewField("payload_name", payload_name, "")
			s.pack.Message.AddField(pname)
		}
		if original != nil {
			// if future injections fail to set the standard headers, use the values
			// from the original message.
			if s.pack.Message.Uuid == nil {
				s.pack.Message.SetUuid(original.GetUuid())
			}
			if s.pack.Message.Timestamp == nil {
				s.pack.Message.SetTimestamp(original.GetTimestamp())
			}
			if s.pack.Message.Type == nil {
				s.pack.Message.SetType(original.GetType())
			}
			if s.pack.Message.Hostname == nil {
				s.pack.Message.SetHostname(original.GetHostname())
			}
			if s.pack.Message.Logger == nil {
				s.pack.Message.SetLogger(original.GetLogger())
			}
			if s.pack.Message.Severity == nil {
				s.pack.Message.SetSeverity(original.GetSeverity())
			}
			if s.pack.Message.Pid == nil {
				s.pack.Message.SetPid(original.GetPid())
			}
		}
		s.packs = append(s.packs, s.pack)
		s.pack = nil
		return 0
	})
}

//.........這裏部分代碼省略.........
		fmt.Printf("Match specification - %s\n", err)
		os.Exit(2)
	}

	var file *os.File
	if file, err = os.Open(flag.Arg(0)); err != nil {
		fmt.Printf("%s\n", err)
		os.Exit(3)
	}
	defer file.Close()

	var out *os.File
	if "" == *flagOutput {
		out = os.Stdout
	} else {
		if out, err = os.OpenFile(*flagOutput, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644); err != nil {
			fmt.Printf("%s\n", err)
			os.Exit(4)
		}
		defer out.Close()
	}

	var offset int64
	if offset, err = file.Seek(*flagOffset, 0); err != nil {
		fmt.Printf("%s\n", err)
		os.Exit(5)
	}

	sRunner, err := makeSplitterRunner()
	if err != nil {
		fmt.Println(err)
		os.Exit(7)
	}
	msg := new(message.Message)
	var processed, matched int64

	fmt.Printf("Input:%s  Offset:%d  Match:%s  Format:%s  Tail:%t  Output:%s\n",
		flag.Arg(0), *flagOffset, *flagMatch, *flagFormat, *flagTail, *flagOutput)
	for true {
		n, record, err := sRunner.GetRecordFromStream(file)
		if n > 0 && n != len(record) {
			fmt.Printf("Corruption detected at offset: %d bytes: %d\n", offset, n-len(record))
		}
		if err != nil {
			if err == io.EOF {
				if !*flagTail || "count" == *flagFormat {
					break
				}
				time.Sleep(time.Duration(500) * time.Millisecond)
			} else {
				break
			}
		} else {
			if len(record) > 0 {
				processed += 1
				headerLen := int(record[1]) + message.HEADER_FRAMING_SIZE
				if err = proto.Unmarshal(record[headerLen:], msg); err != nil {
					fmt.Printf("Error unmarshalling message at offset: %d error: %s\n", offset, err)
					continue
				}

				if !match.Match(msg) {
					continue
				}
				matched += 1

				switch *flagFormat {
				case "count":
					// no op
				case "json":
					contents, _ := json.Marshal(msg)
					fmt.Fprintf(out, "%s\n", contents)
				case "heka":
					fmt.Fprintf(out, "%s", record)
				default:
					fmt.Fprintf(out, "Timestamp: %s\n"+
						"Type: %s\n"+
						"Hostname: %s\n"+
						"Pid: %d\n"+
						"UUID: %s\n"+
						"Logger: %s\n"+
						"Payload: %s\n"+
						"EnvVersion: %s\n"+
						"Severity: %d\n"+
						"Fields: %+v\n\n",
						time.Unix(0, msg.GetTimestamp()), msg.GetType(),
						msg.GetHostname(), msg.GetPid(), msg.GetUuidString(),
						msg.GetLogger(), msg.GetPayload(), msg.GetEnvVersion(),
						msg.GetSeverity(), msg.Fields)
				}
			}
		}
		offset += int64(n)
	}
	fmt.Printf("Processed: %d, matched: %d messages\n", processed, matched)
	if err != nil {
		fmt.Printf("%s\n", err)
		os.Exit(6)
	}
}

func (self *DashboardOutput) Run(or OutputRunner, h PluginHelper) (err error) {
	inChan := or.InChan()
	ticker := or.Ticker()

	var (
		ok   = true
		pack *PipelinePack
		msg  *message.Message
	)

	reNotWord, _ := regexp.Compile("\\W")
	for ok {
		select {
		case pack, ok = <-inChan:
			if !ok {
				break
			}
			msg = pack.Message
			switch msg.GetType() {
			case "heka.all-report":
				fn := path.Join(self.workingDirectory, "heka_report.json")
				createPluginPages(self.workingDirectory, msg.GetPayload())
				overwriteFile(fn, msg.GetPayload())
			case "heka.sandbox-output":
				tmp, _ := msg.GetFieldValue("payload_type")
				if payloadType, ok := tmp.(string); ok {
					var payloadName, nameExt string
					tmp, _ := msg.GetFieldValue("payload_name")
					if payloadName, ok = tmp.(string); ok {
						nameExt = reNotWord.ReplaceAllString(payloadName, "")
					}
					if len(nameExt) > 64 {
						nameExt = nameExt[:64]
					}
					nameExt = "." + nameExt

					payloadType = reNotWord.ReplaceAllString(payloadType, "")
					fn := msg.GetLogger() + nameExt + "." + payloadType
					ofn := path.Join(self.workingDirectory, fn)
					if payloadType == "cbuf" {
						html := msg.GetLogger() + nameExt + ".html"
						ohtml := path.Join(self.workingDirectory, html)
						_, err := os.Stat(ohtml)
						if err != nil {
							overwriteFile(ohtml, fmt.Sprintf(getCbufTemplate(),
								msg.GetLogger(),
								payloadName,
								fn))
						}
						overwriteFile(ofn, msg.GetPayload())
						updatePluginMetadata(self.workingDirectory, msg.GetLogger(), html, payloadName)
					} else {
						overwriteFile(ofn, msg.GetPayload())
						updatePluginMetadata(self.workingDirectory, msg.GetLogger(), fn, payloadName)
					}
				}
			case "heka.sandbox-terminated":
				fn := path.Join(self.workingDirectory, "heka_sandbox_termination.tsv")
				if file, err := os.OpenFile(fn, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644); err == nil {
					var line string
					if _, ok := msg.GetFieldValue("ProcessMessageCount"); !ok {
						line = fmt.Sprintf("%d\t%s\t%v\n", msg.GetTimestamp()/1e9, msg.GetLogger(), msg.GetPayload())
					} else {
						pmc, _ := msg.GetFieldValue("ProcessMessageCount")
						pms, _ := msg.GetFieldValue("ProcessMessageSamples")
						pmd, _ := msg.GetFieldValue("ProcessMessageAvgDuration")
						ms, _ := msg.GetFieldValue("MatchSamples")
						mad, _ := msg.GetFieldValue("MatchAvgDuration")
						fcl, _ := msg.GetFieldValue("FilterChanLength")
						mcl, _ := msg.GetFieldValue("MatchChanLength")
						rcl, _ := msg.GetFieldValue("RouterChanLength")
						line = fmt.Sprintf("%d\t%s\t%v"+
							" ProcessMessageCount:%v"+
							" ProcessMessageSamples:%v"+
							" ProcessMessageAvgDuration:%v"+
							" MatchSamples:%v"+
							" MatchAvgDuration:%v"+
							" FilterChanLength:%v"+
							" MatchChanLength:%v"+
							" RouterChanLength:%v\n",
							msg.GetTimestamp()/1e9,
							msg.GetLogger(), msg.GetPayload(), pmc, pms, pmd,
							ms, mad, fcl, mcl, rcl)
					}
					file.WriteString(line)
					file.Close()
				}
			}
			pack.Recycle()
		case <-ticker:
			go h.PipelineConfig().allReportsMsg()
		}
	}
	return
}

// Save matching client records locally to the given output file in the given
// format.
func save(recordChannel <-chan s3splitfile.S3Record, match *message.MatcherSpecification, format string, out *os.File, done chan<- int) {
	processed := 0
	matched := 0
	bytes := 0
	msg := new(message.Message)
	ok := true
	for ok {
		r, ok := <-recordChannel
		if !ok {
			// Channel is closed
			done <- bytes
			break
		}

		bytes += len(r.Record)

		processed += 1
		headerLen := int(r.Record[1]) + message.HEADER_FRAMING_SIZE
		messageBytes := r.Record[headerLen:]
		unsnappy, decodeErr := snappy.Decode(nil, messageBytes)
		if decodeErr == nil {
			messageBytes = unsnappy
		}
		if err := proto.Unmarshal(messageBytes, msg); err != nil {
			fmt.Fprintf(os.Stderr, "Error unmarshalling message %d in %s, error: %s\n", processed, r.Key, err)
			continue
		}

		if !match.Match(msg) {
			continue
		}

		matched += 1

		switch format {
		case "count":
			// no op
		case "json":
			contents, _ := json.Marshal(msg)
			fmt.Fprintf(out, "%s\n", contents)
		case "heka":
			fmt.Fprintf(out, "%s", r.Record)
		case "offsets":
			// Use offsets mode for indexing the S3 files by clientId
			clientId, ok := msg.GetFieldValue("clientId")
			recordLength := len(r.Record) - headerLen
			if ok {
				fmt.Fprintf(out, "%s\t%s\t%d\t%d\n", r.Key, clientId, (r.Offset + uint64(headerLen)), recordLength)
			} else {
				fmt.Fprintf(os.Stderr, "Missing client id in %s @ %d+%d\n", r.Key, r.Offset, recordLength)
			}
		default:
			fmt.Fprintf(out, "Timestamp: %s\n"+
				"Type: %s\n"+
				"Hostname: %s\n"+
				"Pid: %d\n"+
				"UUID: %s\n"+
				"Logger: %s\n"+
				"Payload: %s\n"+
				"EnvVersion: %s\n"+
				"Severity: %d\n"+
				"Fields: %+v\n\n",
				time.Unix(0, msg.GetTimestamp()), msg.GetType(),
				msg.GetHostname(), msg.GetPid(), msg.GetUuidString(),
				msg.GetLogger(), msg.GetPayload(), msg.GetEnvVersion(),
				msg.GetSeverity(), msg.Fields)
		}
	}
	fmt.Fprintf(os.Stderr, "Processed: %d, matched: %d messages (%.2f MB)\n", processed, matched, (float64(bytes) / 1024.0 / 1024.0))
}