AVRO-4049: Use JDK Arrays equal to test if two UTF8 strings are equal (…

…#3131)
apache · Sep 23, 2024 · 9bff3c9 · 9bff3c9
1 parent 599be18
commit 9bff3c9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lang/java/avro/src/main/java/org/apache/avro/util/Utf8.java b/lang/java/avro/src/main/java/org/apache/avro/util/Utf8.java
@@ -158,6 +158,10 @@ public boolean equals(Object o) {
     Utf8 that = (Utf8) o;
     if (!(this.length == that.length))
       return false;
+    // For longer strings, leverage vectorization (JDK 9+) to determine equality
+    // For shorter strings, the overhead of this method defeats the value
+    if (this.length > 7)
+      return Arrays.equals(this.bytes, 0, this.length, that.bytes, 0, that.length);
     byte[] thatBytes = that.bytes;
     for (int i = 0; i < this.length; i++)
       if (bytes[i] != thatBytes[i])