gelf

package
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Published: Jun 19, 2014 License: MIT Imports: 15 Imported by: 4

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Constants

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const (
	ChunkSize = 1420
)

Used to control GELF chunking. Should be less than (MTU - len(UDP header)).

TODO: generate dynamically using Path MTU Discovery?

Variables

This section is empty.

Functions

This section is empty.

Types

type CompressType

type CompressType int

What compression type the writer should use when sending messages to the graylog2 server

const (
	CompressGzip CompressType = iota
	CompressZlib
)

type Message

type Message struct {
	Version  string                 `json:"version"`
	Host     string                 `json:"host"`
	Short    string                 `json:"short_message"`
	Full     string                 `json:"full_message"`
	TimeUnix float64                `json:"timestamp"`
	Level    int32                  `json:"level"`
	Facility string                 `json:"facility"`
	Extra    map[string]interface{} `json:"-"`
}

Message represents the contents of the GELF message. It is gzipped before sending.

func (*Message) MarshalJSON

func (m *Message) MarshalJSON() ([]byte, error)

func (*Message) UnmarshalJSON

func (m *Message) UnmarshalJSON(data []byte) error

type Reader

type Reader struct {
	// contains filtered or unexported fields
}

func NewReader

func NewReader(addr string) (*Reader, error)

func (*Reader) Addr

func (r *Reader) Addr() string

func (*Reader) Read

func (r *Reader) Read(p []byte) (int, error)

FIXME: this will discard data if p isn't big enough to hold the full message.

func (*Reader) ReadMessage

func (r *Reader) ReadMessage() (*Message, error)

type Writer

type Writer struct {
	Facility         string // defaults to current process name
	CompressionLevel int    // one of the consts from compress/flate
	CompressionType  CompressType
	// contains filtered or unexported fields
}

Writer implements io.Writer and is used to send both discrete messages to a graylog2 server, or data from a stream-oriented interface (like the functions in log).

func NewWriter

func NewWriter(addr string) (*Writer, error)

New returns a new GELF Writer. This writer can be used to send the output of the standard Go log functions to a central GELF server by passing it to log.SetOutput()

func (*Writer) Write

func (w *Writer) Write(p []byte) (n int, err error)

Write encodes the given string in a GELF message and sends it to the server specified in New().

func (*Writer) WriteMessage

func (w *Writer) WriteMessage(m *Message) (err error)

WriteMessage sends the specified message to the GELF server specified in the call to New(). It assumes all the fields are filled out appropriately. In general, clients will want to use Write, rather than WriteMessage.

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