update DataType

Author: idegtiarenko

x-pack/plugin/esql-core/src/main/java/org/elasticsearch/xpack/esql/core/type/DataType.java

@@ -437,41 +437,22 @@ public static DataType fromEs(String name) {
     }
 
     public static DataType fromJava(Object value) {
-        if (value == null) {
-            return NULL;
-        }
-        if (value instanceof Integer) {
-            return INTEGER;
-        }
-        if (value instanceof Long) {
-            return LONG;
-        }
-        if (value instanceof BigInteger) {
-            return UNSIGNED_LONG;
-        }
-        if (value instanceof Boolean) {
-            return BOOLEAN;
-        }
-        if (value instanceof Double) {
-            return DOUBLE;
-        }
-        if (value instanceof Float) {
-            return FLOAT;
-        }
-        if (value instanceof Byte) {
-            return BYTE;
-        }
-        if (value instanceof Short) {
-            return SHORT;
-        }
-        if (value instanceof ZonedDateTime) {
-            return DATETIME;
-        }
-        if (value instanceof String || value instanceof Character || value instanceof BytesRef) {
-            return KEYWORD;
-        }
-
-        return null;
+        return switch (value) {
+            case null -> NULL;
+            case Integer i -> INTEGER;
+            case Long l -> LONG;
+            case BigInteger bigInteger -> UNSIGNED_LONG;
+            case Boolean b -> BOOLEAN;
+            case Double v -> DOUBLE;
+            case Float v -> FLOAT;
+            case Byte b -> BYTE;
+            case Short i -> SHORT;
+            case ZonedDateTime zonedDateTime -> DATETIME;
+            case String s -> KEYWORD;
+            case Character c -> KEYWORD;
+            case BytesRef bytesRef -> KEYWORD;
+            default -> null;
+        };
     }
 
     public static boolean isUnsupported(DataType from) {