From 13ef2261d669795205588e292c547dc8ed9c31f7 Mon Sep 17 00:00:00 2001
From: myPrecious <Moriadry@users.noreply.github.com>
Date: Sat, 12 Aug 2017 06:42:14 +0800
Subject: [PATCH] core: Use bulk operation instead of iteration

---
 core/src/main/java/io/grpc/PickFirstBalancerFactory.java    | 4 +---
 grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancer.java | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/core/src/main/java/io/grpc/PickFirstBalancerFactory.java b/core/src/main/java/io/grpc/PickFirstBalancerFactory.java
index a1177ed337..40c5931b62 100644
--- a/core/src/main/java/io/grpc/PickFirstBalancerFactory.java
+++ b/core/src/main/java/io/grpc/PickFirstBalancerFactory.java
@@ -133,9 +133,7 @@ public final class PickFirstBalancerFactory extends LoadBalancer.Factory {
         List<EquivalentAddressGroup> groupList) {
       List<SocketAddress> addrs = new ArrayList<SocketAddress>();
       for (EquivalentAddressGroup group : groupList) {
-        for (SocketAddress addr : group.getAddresses()) {
-          addrs.add(addr);
-        }
+        addrs.addAll(group.getAddresses());
       }
       return new EquivalentAddressGroup(addrs);
     }
diff --git a/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancer.java b/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancer.java
index fd0fb1b74c..ecfae44d4d 100644
--- a/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancer.java
+++ b/grpclb/src/main/java/io/grpc/grpclb/GrpclbLoadBalancer.java
@@ -626,9 +626,7 @@ class GrpclbLoadBalancer extends LoadBalancer implements WithLogId {
       List<EquivalentAddressGroup> groupList) {
     List<SocketAddress> addrs = new ArrayList<SocketAddress>();
     for (EquivalentAddressGroup group : groupList) {
-      for (SocketAddress addr : group.getAddresses()) {
-        addrs.add(addr);
-      }
+      addrs.addAll(group.getAddresses());
     }
     return new EquivalentAddressGroup(addrs);
   }