1050: * Changed the indentation from spaces to tab.

* Included private no-args constructors.
* refactoring.

Signed-off-by: Vikas Adyar <[email protected]>

Author: vAdyar

formatter/formatting.gradle

@@ -6,8 +6,7 @@ allprojects {
             target '**/*.java'
 
             removeUnusedImports()
-            importOrder(
-                    'de.thetaphi',
+            importOrder('de.thetaphi',
                     'com.carrotsearch',
                     'com.fasterxml',
                     'com.avast',
@@ -19,11 +18,10 @@ allprojects {
                     'javax',
                     'java',
                     '',
-                    '\\#java|\\#org.opensearch|\\#org.hamcrest|\\#'
-            )
+                    '\\#java|\\#org.opensearch|\\#org.hamcrest|\\#')
             eclipse().configFile rootProject.file('formatter/formatterConfig.xml')
             trimTrailingWhitespace()
-            endWithNewline();
+            endWithNewline()
 
             // See DEVELOPER_GUIDE.md for details of when to enable this.
             if (System.getProperty('spotless.paddedcell') != null) {
@@ -38,7 +36,7 @@ allprojects {
             indentWithSpaces()
         }
         format("license", {
-            licenseHeaderFile("${rootProject.file("formatter/license-header.txt")}", "package ");
+            licenseHeaderFile("${rootProject.file("formatter/license-header.txt")}", "package ")
             target("src/*/java/**/*.java")
         })
     }

src/main/java/org/opensearch/flowframework/util/ApiSpecFetcher.java

@@ -40,6 +40,8 @@ public class ApiSpecFetcher {
         PARSE_OPTIONS.setResolveFully(true);
     }
 
+    private ApiSpecFetcher() {}
+
     /**
      * Parses the OpenAPI specification directly from the URI.
      *
@@ -87,23 +89,13 @@ public static boolean compareRequiredFields(List<String> requiredEnumParams, Str
     }
 
     private static Content getContent(RestRequest.Method method, PathItem pathItem) throws IllegalArgumentException, ApiSpecParseException {
-        Operation operation;
-        switch (method) {
-            case POST:
-                operation = pathItem.getPost();
-                break;
-            case GET:
-                operation = pathItem.getGet();
-                break;
-            case PUT:
-                operation = pathItem.getPut();
-                break;
-            case DELETE:
-                operation = pathItem.getDelete();
-                break;
-            default:
-                throw new IllegalArgumentException("Unsupported HTTP method: " + method);
-        }
+        Operation operation = switch (method) {
+            case POST -> pathItem.getPost();
+            case GET -> pathItem.getGet();
+            case PUT -> pathItem.getPut();
+            case DELETE -> pathItem.getDelete();
+            default -> throw new IllegalArgumentException("Unsupported HTTP method: " + method);
+        };
 
         if (operation == null) {
             throw new IllegalArgumentException("No operation found for the specified method: " + method);

src/main/java/org/opensearch/flowframework/util/EncryptorUtils.java

@@ -76,7 +76,7 @@ public class EncryptorUtils {
     private static final String WRAPPING_ALGORITHM = "AES/GCM/NOPADDING";
 
     // concurrent map can't have null as a key. This key is to support single tenancy
-    public static final String DEFAULT_TENANT_ID = "";
+    private static final String DEFAULT_TENANT_ID = "";
 
     private final ClusterService clusterService;
     private final Client client;

src/main/java/org/opensearch/flowframework/util/TenantAwareHelper.java

@@ -23,6 +23,8 @@
  */
 public class TenantAwareHelper {
 
+    private TenantAwareHelper() {}
+
     /**
      * Validates the tenant ID based on the multi-tenancy feature setting.
      *

src/main/java/org/opensearch/flowframework/util/WorkflowTimeoutUtility.java

@@ -34,6 +34,8 @@ public class WorkflowTimeoutUtility {
 
     private static final Logger logger = LogManager.getLogger(WorkflowTimeoutUtility.class);
 
+    private WorkflowTimeoutUtility() {}
+
     /**
      * Schedules a timeout task for a workflow execution.
      *