Add StreamInput.readEnum and StreamOutput.writeEnum (#24475)

Implements the common enum serialization/deserialization pattern for enumeration on the StreamInput/StreamOutput.

1 files changed, 3 insertions, 7 deletions

diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/metrics/percentiles/PercentilesMethod.java b/core/src/main/java/org/elasticsearch/search/aggregations/metrics/percentiles/PercentilesMethod.java
index b10880a13c..3b8085793d 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/metrics/percentiles/PercentilesMethod.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/metrics/percentiles/PercentilesMethod.java
@@ -53,20 +53,16 @@ public enum PercentilesMethod implements Writeable {
     }
 
     public static PercentilesMethod readFromStream(StreamInput in) throws IOException {
-        int ordinal = in.readVInt();
-        if (ordinal < 0 || ordinal >= values().length) {
-            throw new IOException("Unknown PercentilesMethod ordinal [" + ordinal + "]");
-        }
-        return values()[ordinal];
+        return in.readEnum(PercentilesMethod.class);
     }
 
     @Override
     public void writeTo(StreamOutput out) throws IOException {
-        out.writeVInt(ordinal());
+        out.writeEnum(this);
     }
 
     @Override
     public String toString() {
         return parseField.getPreferredName();
     }
-}
\ No newline at end of file
+}