/*
* Poll the worker's job queue
* jobHandlers - a reference to the clients map of available job handlers
*/
func (this Worker) Poll(jobHandlers map[string]reflect.Type) {
for {
// Pop a job off the queue
var client redis.Client
_, message, err := client.Blpop([]string{this.Queue}, 1)
if err != nil {
fmt.Println(fmt.Sprintf("ERROR: %s\n", err))
} else if len(message) > 0 {
// Basic debugging information
// fmt.Println(this.Name + ": Yay Work Work Work!")
// fmt.Println(string(message))
// Parse the message
name, params, err := this.parseMessage(message)
if err != nil {
fmt.Println(fmt.Sprintf("ERROR: %s\n", err))
} else {
// Construct the handler and call the execute() function
jobHandler := reflect.New(jobHandlers[name])
executeMethod := jobHandler.MethodByName("Execute")
if executeMethod.IsValid() {
executeMethod.Call([]reflect.Value{0: reflect.ValueOf(params)})
} else {
fmt.Println(fmt.Sprintf("ERROR: Invalid job handler"))
}
}
} else {
// fmt.Println(this.Name + ": Nothing to do :(\n")
}
// Sleep for 2 seconds before polling the queue again
time.Sleep(2 * time.Second)
}
}