[GitHub] [skywalking] stalary commented on a change in pull request #3357: ADD: add operationName length threshold

[GitBox <gi...@apache.org>]

stalary commented on a change in pull request #3357: ADD: add operationName length threshold
URL: https://github.com/apache/skywalking/pull/3357#discussion_r318400159
 
 

 ##########
 File path: apm-commons/apm-util/src/main/java/org/apache/skywalking/apm/util/StringUtil.java
 ##########
 @@ -62,4 +64,11 @@ public static boolean substringMatch(CharSequence str, int index, CharSequence s
         }
         return true;
     }
+
+    public static String cut(String str, int threshold) {
+        if (isEmpty(str) || str.getBytes().length <= threshold) {
+            return str;
+        }
+        return new String(Arrays.copyOf(str.getBytes(), threshold));
 
 Review comment:
   ok，I will modify it later.

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