use producers array element directly (with casting)

consumer.go

@@ -15,6 +15,8 @@ import (
 	"sync"
 	"sync/atomic"
 	"time"
+
+	"github.com/bitly/go-simplejson"
 )
 
 // Handler is the message processing interface for Consumer
@@ -405,8 +407,8 @@ func (r *Consumer) queryLookupd() {
 	// }
 	producersArray := data.Get("Producers").MustArray()
 	nsqdAddrs := make([]string, len(producersArray))
-	for i := range producersArray {
-		producer := data.Get("Producers").GetIndex(i)
+	for _, element := range producersArray {
+		producer := element.(*simplejson.Json)
 		broadcastAddress := producer.Get("broadcast_address").MustString()
 		port := producer.Get("tcp_port").MustInt()
 		joined := net.JoinHostPort(broadcastAddress, strconv.Itoa(port))