ISSUE-80: Fixing ActionDTO parsing from config

Author: iliax

api/src/main/java/io/kafbat/ui/controller/ApplicationConfigController.java

@@ -5,6 +5,7 @@
 
 import io.kafbat.ui.api.ApplicationConfigApi;
 import io.kafbat.ui.config.ClustersProperties;
+import io.kafbat.ui.model.ActionDTO;
 import io.kafbat.ui.model.ApplicationConfigDTO;
 import io.kafbat.ui.model.ApplicationConfigPropertiesDTO;
 import io.kafbat.ui.model.ApplicationConfigValidationDTO;
@@ -18,6 +19,7 @@
 import io.kafbat.ui.util.ApplicationRestarter;
 import io.kafbat.ui.util.DynamicConfigOperations;
 import java.util.Map;
+import java.util.Optional;
 import javax.annotation.Nullable;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -46,6 +48,12 @@ interface PropertiesMapper {
     DynamicConfigOperations.PropertiesStructure fromDto(ApplicationConfigPropertiesDTO dto);
 
     ApplicationConfigPropertiesDTO toDto(DynamicConfigOperations.PropertiesStructure propertiesStructure);
+
+    default ActionDTO stringToActionDTO(String str) {
+      return Optional.ofNullable(str)
+          .map(s -> Enum.valueOf(ActionDTO.class, s.toUpperCase()))
+          .orElseThrow();
+    }
   }
 
   private final DynamicConfigOperations dynamicConfigOperations;
@@ -75,7 +83,7 @@ public Mono<ResponseEntity<ApplicationConfigDTO>> getCurrentConfig(ServerWebExch
   @Override
   public Mono<ResponseEntity<Void>> restartWithConfig(Mono<RestartRequestDTO> restartRequestDto,
                                                       ServerWebExchange exchange) {
-    var context =  AccessContext.builder()
+    var context = AccessContext.builder()
         .applicationConfigActions(EDIT)
         .operationName("restartWithConfig")
         .build();