akovalenko/go-zabbix-sender
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Refactoring zabbix.go

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This commit is contained in:
Alexey Dubkov 2015-03-01 14:01:04 -08:00
parent a5c2167921
commit 2a239bf2dd
1 changed files with 9 additions and 17 deletions
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26
zabbix.go
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@ -21,10 +21,7 @@ type Metric struct {
// Metric class constructor. // Metric class constructor.
func NewMetric(host, key, value string, clock ...int64) *Metric { func NewMetric(host, key, value string, clock ...int64) *Metric {
m := new(Metric) m := &Metric{Host: host, Key: key, Value: value}
m.Host = host
m.Key = key
m.Value = value
// use current time, if `clock` is not specified // use current time, if `clock` is not specified
if m.Clock = time.Now().Unix(); len(clock) > 0 { if m.Clock = time.Now().Unix(); len(clock) > 0 {
m.Clock = int64(clock[0]) m.Clock = int64(clock[0])
@ -41,9 +38,7 @@ type Packet struct {
// Packet class cunstructor. // Packet class cunstructor.
func NewPacket(data []*Metric, clock ...int64) *Packet { func NewPacket(data []*Metric, clock ...int64) *Packet {
p := new(Packet) p := &Packet{Request: `sender data`, Data: data}
p.Request = `sender data`
p.Data = data
// use current time, if `clock` is not specified // use current time, if `clock` is not specified
if p.Clock = time.Now().Unix(); len(clock) > 0 { if p.Clock = time.Now().Unix(); len(clock) > 0 {
p.Clock = int64(clock[0]) p.Clock = int64(clock[0])
@ -52,7 +47,7 @@ func NewPacket(data []*Metric, clock ...int64) *Packet {
} }
// DataLen Packet class method, return 8 bytes with packet length in little endian order. // DataLen Packet class method, return 8 bytes with packet length in little endian order.
func (p Packet) DataLen() []byte { func (p *Packet) DataLen() []byte {
dataLen := make([]byte, 8) dataLen := make([]byte, 8)
JSONData, _ := json.Marshal(p) JSONData, _ := json.Marshal(p)
binary.LittleEndian.PutUint32(dataLen, uint32(len(JSONData))) binary.LittleEndian.PutUint32(dataLen, uint32(len(JSONData)))
@ -67,19 +62,17 @@ type Sender struct {
// Sender class constructor. // Sender class constructor.
func NewSender(host string, port int) *Sender { func NewSender(host string, port int) *Sender {
s := new(Sender) s := &Sender{Host: host, Port: port}
s.Host = host
s.Port = port
return s return s
} }
// Method Sender class, return zabbix header. // Method Sender class, return zabbix header.
func (s Sender) getHeader() []byte { func (s *Sender) getHeader() []byte {
return []byte("ZBXD\x01") return []byte("ZBXD\x01")
} }
// Method Sender class, resolve uri by name:port. // Method Sender class, resolve uri by name:port.
func (s Sender) getTCPAddr() *net.TCPAddr { func (s *Sender) getTCPAddr() *net.TCPAddr {
// format: hostname:port // format: hostname:port
addr := fmt.Sprintf("%s:%d", s.Host, s.Port) addr := fmt.Sprintf("%s:%d", s.Host, s.Port)
@ -95,7 +88,7 @@ func (s Sender) getTCPAddr() *net.TCPAddr {
} }
// Method Sender class, make connection to uri. // Method Sender class, make connection to uri.
func (s Sender) connect() *net.TCPConn { func (s *Sender) connect() *net.TCPConn {
// Open connection to zabbix host // Open connection to zabbix host
iaddr := s.getTCPAddr() iaddr := s.getTCPAddr()
conn, err := net.DialTCP("tcp", nil, iaddr) conn, err := net.DialTCP("tcp", nil, iaddr)
@ -109,7 +102,7 @@ func (s Sender) connect() *net.TCPConn {
} }
// Method Sender class, read data from connection. // Method Sender class, read data from connection.
func (s Sender) read(conn *net.TCPConn) []byte { func (s *Sender) read(conn *net.TCPConn) []byte {
res := make([]byte, 1024) res := make([]byte, 1024)
res, err := ioutil.ReadAll(conn) res, err := ioutil.ReadAll(conn)
if err != nil { if err != nil {
@ -121,13 +114,12 @@ func (s Sender) read(conn *net.TCPConn) []byte {
} }
// Method Sender class, send packet to zabbix. // Method Sender class, send packet to zabbix.
func (s Sender) Send(packet *Packet) []byte { func (s *Sender) Send(packet *Packet) []byte {
conn := s.connect() conn := s.connect()
defer conn.Close() defer conn.Close()
dataPacket, _ := json.Marshal(packet) dataPacket, _ := json.Marshal(packet)
// Make zabbix header
/* /*
fmt.Printf("HEADER: % x (%s)\n", s.getHeader(), s.getHeader()) fmt.Printf("HEADER: % x (%s)\n", s.getHeader(), s.getHeader())
fmt.Printf("DATALEN: % x, %d byte\n", packet.DataLen(), len(packet.DataLen())) fmt.Printf("DATALEN: % x, %d byte\n", packet.DataLen(), len(packet.DataLen()))