Remove spring dependency and bug fixes

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.common/src/main/java/org/wso2/carbon/identity/api/server/branding/preference/management/common/BrandingPreferenceServiceHolder.java

@@ -18,6 +18,7 @@
 
 package org.wso2.carbon.identity.api.server.branding.preference.management.common;
 
+import org.wso2.carbon.context.PrivilegedCarbonContext;
 import org.wso2.carbon.identity.branding.preference.management.core.BrandingPreferenceManager;
 import org.wso2.carbon.identity.branding.preference.management.core.ai.BrandingAIPreferenceManager;
 
@@ -27,7 +28,12 @@
 public class BrandingPreferenceServiceHolder {
 
     private static BrandingPreferenceManager brandingPreferenceManager;
-    private static BrandingAIPreferenceManager brandingPreferenceAiManager;
+
+    private static class BrandingAIPreferenceManagerServiceHolder {
+
+        static final BrandingAIPreferenceManager SERVICE = (BrandingAIPreferenceManager) PrivilegedCarbonContext.
+                getThreadLocalCarbonContext().getOSGiService(BrandingAIPreferenceManager.class, null);
+    }
 
     /**
      * Get BrandingPreferenceManager OSGi service.
@@ -56,16 +62,6 @@ public static void setBrandingPreferenceManager(BrandingPreferenceManager brandi
      */
     public static BrandingAIPreferenceManager getBrandingPreferenceAiManager() {
 
-        return brandingPreferenceAiManager;
-    }
-
-    /**
-     * Set AIBrandingPreferenceManager OSGi service.
-     *
-     * @param brandingPreferenceAIManager AI Branding Preference Manager.
-     */
-    public static void setBrandingPreferenceAiManager(BrandingAIPreferenceManager brandingPreferenceAIManager) {
-
-        BrandingPreferenceServiceHolder.brandingPreferenceAiManager = brandingPreferenceAIManager;
+        return BrandingAIPreferenceManagerServiceHolder.SERVICE;
     }
 }

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/gen/java/org/wso2/carbon/identity/api/server/branding/preference/management/v1/BrandingPreferenceApi.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.com).
+ * Copyright (c) 2025, WSO2 LLC. (http://www.wso2.com).
  *
  * WSO2 LLC. licenses this file to you under the Apache License,
  * Version 2.0 (the "License"); you may not use this file except
@@ -175,7 +175,7 @@ public Response generateBrandingPreference(@ApiParam(value = "This represents th
     @Path("/result/{operationId}")
 
     @Produces({ "application/json" })
-    @ApiOperation(value = "Return the result of a branding generation operation.", notes = "This API endpoint returns the result of an AI branding generation operation for a given operation ID. Depending on the operation status, the response may include an error message or the generated branding preferences.<br/> <b>Scope(Permission) required:</b> `internal_branding_preference_update` ", response = BrandingGenerationResultModel.class, authorizations = {
+    @ApiOperation(value = "Return the result of a branding generation operation.", notes = "This API endpoint returns the result of an AI branding generation operation for a given operation ID. Depending on the operation status, the response may include an error message or the generated branding preferences.<br/> ", response = BrandingGenerationResultModel.class, authorizations = {
         @Authorization(value = "BasicAuth"),
         @Authorization(value = "OAuth2", scopes = {
 
@@ -186,16 +186,15 @@ public Response generateBrandingPreference(@ApiParam(value = "This represents th
     })
     public Response getBrandingGenerationResult(@ApiParam(value = "The unique identifier for the branding generation operation.",required=true) @PathParam("operationId") String operationId) {
 
-        Response brandingGenerationResult = delegate.getBrandingGenerationResult(operationId);
-        return brandingGenerationResult;
+        return delegate.getBrandingGenerationResult(operationId );
     }
 
     @Valid
     @GET
     @Path("/status/{operationId}")
 
     @Produces({ "application/json" })
-    @ApiOperation(value = "Get the status of a branding generation operation.", notes = "This API endpoint return the status of the AI branding generation process that initiated using the `/generate` endpoint.<br/> <b>Scope(Permission) required:</b> `internal_branding_preference_update` ", response = BrandingGenerationStatusModel.class, authorizations = {
+    @ApiOperation(value = "Get the status of a branding generation operation.", notes = "This API endpoint returns the status of the AI branding generation process that initiated using the `/generate` endpoint.<br/> ", response = BrandingGenerationStatusModel.class, authorizations = {
         @Authorization(value = "BasicAuth"),
         @Authorization(value = "OAuth2", scopes = {
 

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/gen/java/org/wso2/carbon/identity/api/server/branding/preference/management/v1/model/BrandingGenerationRequestModel.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.com).
+ * Copyright (c) 2025, WSO2 LLC. (http://www.wso2.com).
  *
  * WSO2 LLC. licenses this file to you under the Apache License,
  * Version 2.0 (the "License"); you may not use this file except
@@ -44,7 +44,7 @@ public BrandingGenerationRequestModel websiteUrl(String websiteUrl) {
     }
 
     @ApiModelProperty(value = "URL of the company's website.")
-    @JsonProperty("website_url")
+    @JsonProperty("websiteUrl")
     @Valid
     public String getWebsiteUrl() {
         return websiteUrl;

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/gen/java/org/wso2/carbon/identity/api/server/branding/preference/management/v1/model/BrandingGenerationResponseModel.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.com).
+ * Copyright (c) 2025, WSO2 LLC. (http://www.wso2.com).
  *
  * WSO2 LLC. licenses this file to you under the Apache License,
  * Version 2.0 (the "License"); you may not use this file except
@@ -44,7 +44,7 @@ public BrandingGenerationResponseModel operationId(String operationId) {
     }
 
     @ApiModelProperty(value = "Operation id of the initiated branding generation process.")
-    @JsonProperty("operation_id")
+    @JsonProperty("operationId")
     @Valid
     public String getOperationId() {
         return operationId;

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/main/java/org/wso2/carbon/identity/api/server/branding/preference/management/v1/core/BrandingAIPreferenceManagementService.java

@@ -44,7 +44,7 @@
  */
 public class BrandingAIPreferenceManagementService {
 
-    private static final Log log = LogFactory.getLog(BrandingAIPreferenceManagementService.class);
+    private static final Log LOG = LogFactory.getLog(BrandingAIPreferenceManagementService.class);
 
     /**
      * Initiates the branding preference generation process by invoking BrandingPreferenceManager.
@@ -140,6 +140,7 @@ private BrandingGenerationResultModel.StatusEnum getStatusFromResult(Map<String,
 
     private APIError handleClientException(AIClientException error) {
 
+        LOG.debug("Client error occurred while invoking AI service.", error);
         ErrorResponse.Builder errorResponseBuilder = new ErrorResponse.Builder()
                 .withCode(error.getErrorCode())
                 .withMessage(error.getMessage());
@@ -153,6 +154,7 @@ private APIError handleClientException(AIClientException error) {
 
     private APIError handleServerException(AIServerException error) {
 
+        LOG.error("Server error occurred while generating branding preference.", error);
         ErrorResponse.Builder errorResponseBuilder = new ErrorResponse.Builder()
                 .withCode(error.getErrorCode())
                 .withMessage(error.getMessage());
@@ -184,7 +186,7 @@ private static Map<String, Object> convertObjectToMap(Object object) {
             }
             return map;
         }
-        log.warn("Object is not an instance of Map. Returning an empty map.");
+        LOG.warn("Object is not an instance of Map. Returning an empty map.");
         return new HashMap<>();
     }
 

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/main/java/org/wso2/carbon/identity/api/server/branding/preference/management/v1/factories/BrandingAIPreferenceManagementServiceFactory.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025, WSO2 LLC. (http://www.wso2.com).
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.wso2.carbon.identity.api.server.branding.preference.management.v1.factories;
+
+import org.wso2.carbon.identity.api.server.branding.preference.management.v1.core.BrandingAIPreferenceManagementService;
+
+/**
+ * Factory class for Branding AI Preference Management Service.
+ */
+public class BrandingAIPreferenceManagementServiceFactory {
+
+    private static final BrandingAIPreferenceManagementService SERVICE;
+
+    static {
+        SERVICE = new BrandingAIPreferenceManagementService();
+    }
+
+    public static BrandingAIPreferenceManagementService getBrandingAIPreferenceManagementService() {
+
+        return SERVICE;
+    }
+}

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/main/java/org/wso2/carbon/identity/api/server/branding/preference/management/v1/impl/BrandingPreferenceApiServiceImpl.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2024, WSO2 LLC. (http://www.wso2.com).
+ * Copyright (c) 2024-2025, WSO2 LLC. (http://www.wso2.com).
  *
  * WSO2 LLC. licenses this file to you under the Apache License,
  * Version 2.0 (the "License"); you may not use this file except
@@ -21,8 +21,8 @@
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.wso2.carbon.identity.api.server.branding.preference.management.v1.BrandingPreferenceApiService;
-import org.wso2.carbon.identity.api.server.branding.preference.management.v1.core.BrandingAIPreferenceManagementService;
 import org.wso2.carbon.identity.api.server.branding.preference.management.v1.core.BrandingPreferenceManagementService;
+import org.wso2.carbon.identity.api.server.branding.preference.management.v1.factories.BrandingAIPreferenceManagementServiceFactory;
 import org.wso2.carbon.identity.api.server.branding.preference.management.v1.model.BrandingGenerationRequestModel;
 import org.wso2.carbon.identity.api.server.branding.preference.management.v1.model.BrandingGenerationResponseModel;
 import org.wso2.carbon.identity.api.server.branding.preference.management.v1.model.BrandingGenerationResultModel;
@@ -59,9 +59,6 @@ public class BrandingPreferenceApiServiceImpl implements BrandingPreferenceApiSe
     @Autowired
     private BrandingPreferenceManagementService brandingPreferenceManagementService;
 
-    @Autowired
-    private BrandingAIPreferenceManagementService brandingAIPreferenceManagementService;
-
     //TODO: Improve API to manage application level & language level theming resources in addition to the tenant level.
 
     @Override
@@ -194,26 +191,29 @@ public Response getBrandingPreference(String type, String name, String locale) {
     }
 
     @Override
-    public Response generateBrandingPreference(BrandingGenerationRequestModel brandingGenerationModel) {
+    public Response generateBrandingPreference(BrandingGenerationRequestModel brandingGenerationRequestModel) {
 
-        BrandingGenerationResponseModel response = brandingAIPreferenceManagementService.generateBrandingPreference(
-                brandingGenerationModel);
+        BrandingGenerationResponseModel response = BrandingAIPreferenceManagementServiceFactory
+                .getBrandingAIPreferenceManagementService().generateBrandingPreference(
+                brandingGenerationRequestModel);
         return Response.accepted().entity(response).build();
 
     }
 
     @Override
     public Response getBrandingGenerationResult(String operationId) {
 
-        BrandingGenerationResultModel response = brandingAIPreferenceManagementService
+        BrandingGenerationResultModel response = BrandingAIPreferenceManagementServiceFactory
+                .getBrandingAIPreferenceManagementService()
                 .getBrandingPreferenceGenerationResult(operationId);
         return Response.ok().entity(response).build();
     }
 
     @Override
     public Response getBrandingGenerationStatus(String operationId) {
 
-        BrandingGenerationStatusModel response = brandingAIPreferenceManagementService
+        BrandingGenerationStatusModel response = BrandingAIPreferenceManagementServiceFactory
+                .getBrandingAIPreferenceManagementService()
                 .getBrandingPreferenceGenerationStatus(operationId);
         return Response.ok().entity(response).build();
     }
@@ -287,18 +287,7 @@ public Response updateBrandingPreference(BrandingPreferenceModel brandingPrefere
     @Override
     public Response updateCustomText(CustomTextModel customTextModel) {
 
-        if (StringUtils.isBlank(customTextModel.getType().toString())) {
-            return Response.status(Response.Status.BAD_REQUEST).build();
-        }
-        if (!ORGANIZATION_TYPE.equals(customTextModel.getType().toString())) {
-            return Response.status(Response.Status.NOT_FOUND).build();
-        }
-        if (StringUtils.isBlank(customTextModel.getScreen())) {
-            return Response.status(Response.Status.BAD_REQUEST).build();
-        }
-
-        CustomTextModel updatedCustomTextModel =
-                brandingPreferenceManagementService.updateCustomTextPreference(customTextModel);
-        return Response.ok().entity(updatedCustomTextModel).build();
+        // do some magic!
+        return Response.ok().entity("magic!").build();
     }
 }

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/main/resources/META-INF/cxf/branding-preference-server-v1-cxf.xml

@@ -19,12 +19,9 @@
 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
     <bean class="org.wso2.carbon.identity.api.server.branding.preference.management.v1.core.BrandingPreferenceManagementService"/>
-    <bean class="org.wso2.carbon.identity.api.server.branding.preference.management.v1.core.BrandingAIPreferenceManagementService"/>
     <bean class="org.wso2.carbon.identity.api.server.branding.preference.management.v1.impl.BrandingPreferenceApiServiceImpl"/>
     <bean id="brandingPreferenceManagerFactoryBean" class="org.wso2.carbon.identity.api.server.branding.preference.management.common.factory.BrandingPreferenceMgtOSGiServiceFactory"/>
-    <bean id="brandingPreferenceAiManagerFactoryBean" class="org.wso2.carbon.identity.api.server.branding.preference.management.common.factory.BrandingPreferenceAIMgtOSGiServiceFactory"/>
     <bean id="brandingPreferenceServiceImplDataHolderBean" class="org.wso2.carbon.identity.api.server.branding.preference.management.common.BrandingPreferenceServiceHolder">
         <property name="brandingPreferenceManager" ref="brandingPreferenceManagerFactoryBean"/>
-        <property name="brandingPreferenceAiManager" ref="brandingPreferenceAiManagerFactoryBean"/>
     </bean>
 </beans>

components/org.wso2.carbon.identity.api.server.branding.preference.management/org.wso2.carbon.identity.api.server.branding.preference.management.v1/src/main/resources/branding-preference.yaml

@@ -241,7 +241,7 @@ paths:
       operationId: getBrandingGenerationStatus
       summary: Get the status of a branding generation operation.
       description: |
-        This API endpoint return the status of the AI branding generation process that initiated using the `/generate` endpoint.<br/>
+        This API endpoint returns the status of the AI branding generation process that initiated using the `/generate` endpoint.<br/>
       parameters:
         - $ref: '#/components/parameters/operationId'
       responses:
@@ -279,7 +279,6 @@ paths:
               schema:
                 $ref: '#/components/schemas/BrandingGenerationResultModel'
 
-
   '/branding-preference/text':
     get:
       tags:
@@ -567,15 +566,15 @@ components:
       properties:
         # Define properties related to the organization that are used to generate branding preferences
         # Example property:
-        website_url:
+        websiteUrl:
           type: string
           description: URL of the company's website.
     BrandingGenerationResponseModel:
       type: object
       properties:
         # Define properties related to the organization that are used to generate branding preferences
         # Example property:
-        operation_id:
+        operationId:
           type: string
           description: Operation id of the initiated branding generation process.
     BrandingGenerationStatusModel: