コード例 #1
0
ファイル: filestat.go プロジェクト: li-ang/telegraf
func (f *FileStat) Gather(acc telegraf.Accumulator) error {
	var errS string
	var err error

	for _, filepath := range f.Files {
		// Get the compiled glob object for this filepath
		g, ok := f.globs[filepath]
		if !ok {
			if g, err = globpath.Compile(filepath); err != nil {
				errS += err.Error() + " "
				continue
			}
			f.globs[filepath] = g
		}

		files := g.Match()
		if len(files) == 0 {
			acc.AddFields("filestat",
				map[string]interface{}{
					"exists": int64(0),
				},
				map[string]string{
					"file": filepath,
				})
			continue
		}

		for fileName, fileInfo := range files {
			tags := map[string]string{
				"file": fileName,
			}
			fields := map[string]interface{}{
				"exists":     int64(1),
				"size_bytes": fileInfo.Size(),
			}

			if f.Md5 {
				md5, err := getMd5(fileName)
				if err != nil {
					errS += err.Error() + " "
				} else {
					fields["md5_sum"] = md5
				}
			}

			acc.AddFields("filestat", fields, tags)
		}
	}

	if errS != "" {
		return fmt.Errorf(errS)
	}
	return nil
}
コード例 #2
0
ファイル: tail.go プロジェクト: Wikia/telegraf
func (t *Tail) Start(acc telegraf.Accumulator) error {
	t.Lock()
	defer t.Unlock()

	t.acc = acc

	var seek tail.SeekInfo
	if !t.FromBeginning {
		seek.Whence = 2
		seek.Offset = 0
	}

	var errS string
	// Create a "tailer" for each file
	for _, filepath := range t.Files {
		g, err := globpath.Compile(filepath)
		if err != nil {
			log.Printf("E! Error Glob %s failed to compile, %s", filepath, err)
		}
		for file, _ := range g.Match() {
			tailer, err := tail.TailFile(file,
				tail.Config{
					ReOpen:    true,
					Follow:    true,
					Location:  &seek,
					MustExist: true,
				})
			if err != nil {
				errS += err.Error() + " "
				continue
			}
			// create a goroutine for each "tailer"
			t.wg.Add(1)
			go t.receiver(tailer)
			t.tailers = append(t.tailers, tailer)
		}
	}

	if errS != "" {
		return fmt.Errorf(errS)
	}
	return nil
}
コード例 #3
0
ファイル: logparser.go プロジェクト: qindj/telegraf
func (l *LogParserPlugin) Start(acc telegraf.Accumulator) error {
	l.Lock()
	defer l.Unlock()

	l.acc = acc
	l.lines = make(chan string, 1000)
	l.done = make(chan struct{})

	// Looks for fields which implement LogParser interface
	l.parsers = []LogParser{}
	s := reflect.ValueOf(l).Elem()
	for i := 0; i < s.NumField(); i++ {
		f := s.Field(i)

		if !f.CanInterface() {
			continue
		}

		if lpPlugin, ok := f.Interface().(LogParser); ok {
			if reflect.ValueOf(lpPlugin).IsNil() {
				continue
			}
			l.parsers = append(l.parsers, lpPlugin)
		}
	}

	if len(l.parsers) == 0 {
		return fmt.Errorf("ERROR: logparser input plugin: no parser defined.")
	}

	// compile log parser patterns:
	for _, parser := range l.parsers {
		if err := parser.Compile(); err != nil {
			return err
		}
	}

	var seek tail.SeekInfo
	if !l.FromBeginning {
		seek.Whence = 2
		seek.Offset = 0
	}

	l.wg.Add(1)
	go l.parser()

	var errS string
	// Create a "tailer" for each file
	for _, filepath := range l.Files {
		g, err := globpath.Compile(filepath)
		if err != nil {
			log.Printf("ERROR Glob %s failed to compile, %s", filepath, err)
		}
		for file, _ := range g.Match() {
			tailer, err := tail.TailFile(file,
				tail.Config{
					ReOpen:   true,
					Follow:   true,
					Location: &seek,
				})
			if err != nil {
				errS += err.Error() + " "
				continue
			}
			// create a goroutine for each "tailer"
			l.wg.Add(1)
			go l.receiver(tailer)
			l.tailers = append(l.tailers, tailer)
		}
	}

	if errS != "" {
		return fmt.Errorf(errS)
	}
	return nil
}