Use a switch expression to get validator

We are looking at an enumeration, hence we can use switch expression
exhaustiveness to eliminate an ISE.

Change-Id: Iebfd1b7f8d5ea19a5c7508c5f1a4f3d69074ab84
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/parser/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviate/AbstractDeviateStatementSupport.java b/parser/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviate/AbstractDeviateStatementSupport.java
index d76f414f8817b73f180e139655d57529a4ff5c33..f137d12310c6d14ffc22e46e26a20b03c0126331 100644 (file)
--- a/parser/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviate/AbstractDeviateStatementSupport.java
+++ b/parser/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviate/AbstractDeviateStatementSupport.java
@@ -213,19 +213,12 @@ abstract class AbstractDeviateStatementSupport
     }
 
     protected SubstatementValidator getSubstatementValidatorForDeviate(final DeviateKind deviateKind) {
-        switch (deviateKind) {
-            case NOT_SUPPORTED:
-                return DEVIATE_NOT_SUPPORTED_SUBSTATEMENT_VALIDATOR;
-            case ADD:
-                return DEVIATE_ADD_SUBSTATEMENT_VALIDATOR;
-            case REPLACE:
-                return DEVIATE_REPLACE_SUBSTATEMENT_VALIDATOR;
-            case DELETE:
-                return DEVIATE_DELETE_SUBSTATEMENT_VALIDATOR;
-            default:
-                throw new IllegalStateException(String.format(
-                        "Substatement validator for deviate %s has not been defined.", deviateKind));
-        }
+        return switch (deviateKind) {
+            case NOT_SUPPORTED -> DEVIATE_NOT_SUPPORTED_SUBSTATEMENT_VALIDATOR;
+            case ADD -> DEVIATE_ADD_SUBSTATEMENT_VALIDATOR;
+            case REPLACE -> DEVIATE_REPLACE_SUBSTATEMENT_VALIDATOR;
+            case DELETE -> DEVIATE_DELETE_SUBSTATEMENT_VALIDATOR;
+        };
     }
 
     private static boolean isDeviationSupported(