Extract messages of unsupported exception as constants (#3887)

Co-authored-by: zhangshuai <[email protected]>
Co-authored-by: M Sazzadul Hoque <[email protected]>

src/main/java/redis/clients/jedis/mcf/MultiClusterTransaction.java

@@ -27,6 +27,8 @@
 public class MultiClusterTransaction extends TransactionBase {
 
   private static final Builder<?> NO_OP_BUILDER = BuilderFactory.RAW_OBJECT;
+
+  private static final String GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE = "Graph commands are not supported.";
 
   private final CircuitBreakerFailoverConnectionProvider failoverProvider;
   private final AtomicInteger extraCommandCount = new AtomicInteger();
@@ -213,52 +215,52 @@ public final String discard() {
   // RedisGraph commands
   @Override
   public Response<ResultSet> graphQuery(String name, String query) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphReadonlyQuery(String name, String query) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphQuery(String name, String query, long timeout) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphReadonlyQuery(String name, String query, long timeout) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphQuery(String name, String query, Map<String, Object> params) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphReadonlyQuery(String name, String query, Map<String, Object> params) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphQuery(String name, String query, Map<String, Object> params, long timeout) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<ResultSet> graphReadonlyQuery(String name, String query, Map<String, Object> params, long timeout) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<String> graphDelete(String name) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
 
   @Override
   public Response<List<String>> graphProfile(String graphName, String query) {
-    throw new UnsupportedOperationException("Graph commands are not supported.");
+    throw new UnsupportedOperationException(GRAPH_COMMANDS_NOT_SUPPORTED_MESSAGE);
   }
   // RedisGraph commands
 }