From 03246b95d667c1c26ab6ff141bd27ef13a32e31f Mon Sep 17 00:00:00 2001
From: Nikita <abracham.mitchell@gmail.com>
Date: Thu, 30 Jul 2015 11:13:43 +0300
Subject: [PATCH] RedissonList contains method speed optimization. #199

---
 src/main/java/org/redisson/RedissonList.java | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/main/java/org/redisson/RedissonList.java b/src/main/java/org/redisson/RedissonList.java
index 0cd9f0cbe..6525a5549 100644
--- a/src/main/java/org/redisson/RedissonList.java
+++ b/src/main/java/org/redisson/RedissonList.java
@@ -367,9 +367,15 @@ public class RedissonList<V> extends RedissonExpirable implements RList<V> {
 
     private <R> Future<R> indexOfAsync(Object o, Convertor<R> convertor) {
         return commandExecutor.evalReadAsync(getName(), new RedisCommand<R>("EVAL", convertor, 4),
-                "local s = redis.call('llen', KEYS[1]);" +
-                        "for i = 0, s, 1 do if ARGV[1] == redis.call('lindex', KEYS[1], i) then return i end end;" +
-                        "return -1",
+                "local key = KEYS[1] " +
+                "local obj = ARGV[1] " +
+                "local items = redis.call('lrange', key, 0, -1) " +
+                "for i=1,#items do " +
+                    "if items[i] == obj then " +
+                        "return i - 1 " +
+                    "end " +
+                "end " +
+                "return -1",
                 Collections.<Object>singletonList(getName()), o);
     }