func (sip *SCAMPInputPlugin) Run(ir pipeline.InputRunner, h pipeline.PluginHelper) (err error) {
sip.service, err = scamp.NewService(sip.conf.Service, sip.conf.Name)
if err != nil {
return
}
announcer, err := scamp.NewDiscoveryAnnouncer()
if err != nil {
scamp.Error.Printf("failed to create announcer: `%s`", err)
return
}
announcer.Track(sip.service)
go announcer.AnnounceLoop()
var handlerConfig SCAMPInputHandlerConfig
for _, handlerConfig = range sip.conf.Handlers {
scamp.Trace.Printf("registering handler: `%s`", handlerConfig)
sip.service.Register(handlerConfig.Action, func(msg *scamp.Message, client *scamp.Client) {
var pack *pipeline.PipelinePack
pack = <-ir.InChan()
pack.Message.SetUuid(uuid.NewRandom())
pack.Message.SetTimestamp(time.Now().UnixNano())
pack.Message.SetPayload(string(msg.Bytes()[:]))
pack.Message.SetSeverity(int32(handlerConfig.Severity))
pack.Message.SetLogger(handlerConfig.Logger) // TODO not sure what this means
ir.Deliver(pack)
reply := scamp.NewMessage()
reply.SetMessageType(scamp.MESSAGE_TYPE_REPLY)
reply.SetEnvelope(scamp.ENVELOPE_JSON)
reply.SetRequestId(msg.RequestId)
reply.Write([]byte("{}"))
scamp.Trace.Printf("sending msg: {requestId: %d, type: `%s`, envelope: `%s`, body: `%s`}", reply.RequestId, reply.MessageType, reply.Envelope, reply.Bytes())
_, err = client.Send(reply)
if err != nil {
scamp.Error.Printf("could not reply to message: `%s`", err)
client.Close()
return
}
})
}
sip.service.Run()
return
}
func main() {
scamp.Initialize()
service, err := scamp.NewService(":30100", "helloworld")
if err != nil {
scamp.Error.Fatalf("error creating new service: `%s`", err)
}
service.Register("helloworld.hello", func(message *scamp.Message, client *scamp.Client) {
scamp.Info.Printf("go message: `%s`", message.Bytes())
blob := message.Bytes()
if len(blob) > 0 {
scamp.Info.Printf("helloworld had data: %s", blob)
} else {
scamp.Trace.Printf("helloworld was called without data")
}
reply := &scamp.Message{MessageType: scamp.MESSAGE_TYPE_REPLY}
reply.Write(famous_words)
reply.SetRequestId(message.RequestId)
_, err := client.Send(reply)
if err != nil {
scamp.Error.Printf("error while sending reply: `%s`. continuing.", err)
return
}
})
announcer, err := scamp.NewDiscoveryAnnouncer()
if err != nil {
scamp.Error.Printf("failed to create announcer: `%s`", err)
return
}
announcer.Track(service)
go announcer.AnnounceLoop()
service.Run()
}
