simplify OptionUtil#prefixEndOf (#5833)

* simplify OptionUtil#prefixEndOf * remove Unused import
apache · Apr 12, 2021 · 8c291f8 · 8c291f8
1 parent 0f5040b
commit 8c291f8
Showing 1 changed file with 3 additions and 8 deletions.
diff --git a/.../dubbo-remoting-etcd3/src/main/java/org/apache/dubbo/remoting/etcd/option/OptionUtil.java b/.../dubbo-remoting-etcd3/src/main/java/org/apache/dubbo/remoting/etcd/option/OptionUtil.java
@@ -20,21 +20,16 @@
 import io.grpc.Status;
 import io.netty.handler.codec.http2.Http2Exception;
 
-import java.util.Arrays;
-
 public class OptionUtil {
 
     public static final byte[] NO_PREFIX_END = {0};
 
     public static final ByteSequence prefixEndOf(ByteSequence prefix) {
         byte[] endKey = prefix.getBytes().clone();
-        for (int i = endKey.length - 1; i >= 0; i--) {
-            if (endKey[i] < 0xff) {
-                endKey[i] = (byte) (endKey[i] + 1);
-                return ByteSequence.from(Arrays.copyOf(endKey, i + 1));
-            }
+        if (prefix.size() > 0) {
+            endKey[endKey.length - 1] = (byte) (endKey[endKey.length - 1] + 1);
+            return ByteSequence.from(endKey);
         }
-
         return ByteSequence.from(NO_PREFIX_END);
     }