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Added onConnection and connectionLost Handlers

This commit is contained in:
chaton78 2016-04-13 22:58:45 -04:00
parent b151a79fa5
commit edf04d788a
1 changed files with 19 additions and 13 deletions
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32
plugins/inputs/mqtt_consumer/mqtt_consumer.go
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@ -3,6 +3,7 @@ package mqtt_consumer
import (
"fmt"
"log"
"strings"
"sync"
"time"
@ -46,8 +47,8 @@ type MQTTConsumer struct {
// keep the accumulator internally:
acc telegraf.Accumulator
started bool false
started bool
}
var sampleConfig = `
@ -102,6 +103,7 @@ func (m *MQTTConsumer) SetParser(parser parsers.Parser) {
func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
m.Lock()
defer m.Unlock()
m.started = false
if m.PersistentSession && m.ClientID == "" {
return fmt.Errorf("ERROR MQTT Consumer: When using persistent_session" +
@ -118,9 +120,6 @@ func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
return err
}
opts.OnConnect = onConnect
m.client = mqtt.NewClient(opts)
if token := m.client.Connect(); token.Wait() && token.Error() != nil {
return token.Error()
@ -129,14 +128,12 @@ func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
m.in = make(chan mqtt.Message, 1000)
m.done = make(chan struct{})
go m.receiver()
return nil
}
func onConnect(c *MQTT.Client) {
if (!m.PersistentSession || !m.started) {
func (m *MQTTConsumer) onConnect(c mqtt.Client) {
if !m.PersistentSession || !m.started {
topics := make(map[string]byte)
for _, topic := range m.Topics {
topics[topic] = byte(m.QoS)
@ -145,11 +142,18 @@ func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
subscribeToken.Wait()
if subscribeToken.Error() != nil {
log.Printf("MQTT SUBSCRIBE ERROR\ntopics: %s\nerror: %s",
string(m.Topics), err.Error())
strings.Join(m.Topics[:], ","), subscribeToken.Error())
}
m.started = true;
}
}
m.started = true
}
return
}
func (m *MQTTConsumer) onConnectionLost(c mqtt.Client, err error) {
log.Printf("MQTT Connection lost\nerror: %s\nClient should retry to reconnect", err.Error())
return
}
// receiver() reads all incoming messages from the consumer, and parses them into
// influxdb metric points.
func (m *MQTTConsumer) receiver() {
@ -231,6 +235,8 @@ func (m *MQTTConsumer) createOpts() (*mqtt.ClientOptions, error) {
opts.SetAutoReconnect(true)
opts.SetKeepAlive(time.Second * 60)
opts.SetCleanSession(!m.PersistentSession)
opts.SetOnConnectHandler(m.onConnect)
opts.SetConnectionLostHandler(m.onConnectionLost)
return opts, nil
}