* Licensed 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.
 package org.openecomp.sdc.be.ecomp;
 
 import fj.data.Either;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import javax.servlet.http.HttpServletRequest;
 import org.onap.portalsdk.core.onboarding.crossapi.IPortalRestAPIService;
 import org.onap.portalsdk.core.onboarding.exception.CipherUtilException;
 import org.onap.portalsdk.core.onboarding.exception.PortalAPIException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.web.context.ContextLoader;
 
-import javax.servlet.http.HttpServletRequest;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-
 public class EcompIntImpl implements IPortalRestAPIService {
-       private static final String FAILED_TO_CONVERT_ROLES = "Failed to convert Roles";
-       public static final String FAILED_TO_GET_ROLES = "Failed to get Roles";
-       private static final String GET_USER_ROLES = "GetUserRoles";
-       public static final String ERROR_FAILED_TO_GET_ROLES = "Error: Failed to get Roles";
-       private static final String PUSH_USER_ROLE = "PushUserRole";
-       private static final String FAILED_TO_FETCH_ROLES = "Failed to fetch roles";
-       private static final String FAILED_TO_CONVERT_USER2 = "Failed to convert User {}";
-       private static final String GET_USERS = "GetUsers";
-       private static final String FAILED_TO_GET_USERS = "Failed to get Users";
-       private static final String GET_USER = "GetUser";
-       private static final String FAILED_TO_GET_USER = "Failed to get User";
-       private static final String FAILED_TO_UPDATE_USER_CREDENTIALS = "Failed to updateUserCredentials";
-       private static final String FAILED_TO_EDIT_USER = "Failed to edit user";
-       private static final String EDIT_USER = "EditUser";
-       private static final String RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID = "Received null for argument loginId";
-       private static final String NULL_POINTER_RETURNED_FROM_USER_CONVERTER = "NULL pointer returned from user converter";
-       private static final String FAILED_TO_CREATE_USER = "Failed to create user {}";
-       private static final String FAILED_TO_CONVERT_USER = "Failed to convert user";
-       private static final String JH0003 = "jh0003";
-       private static final String PUSH_USER = "PushUser";
-       private static final String RECEIVED_NULL_FOR_ARGUMENT_USER = "Received null for argument user";
-       private static final Logger log = Logger.getLogger(EcompIntImpl.class.getName());
+    private static final String FAILED_TO_CONVERT_ROLES = "Failed to convert Roles";
+    public static final String FAILED_TO_GET_ROLES = "Failed to get Roles";
+    private static final String GET_USER_ROLES = "GetUserRoles";
+    public static final String ERROR_FAILED_TO_GET_ROLES = "Error: Failed to get Roles";
+    private static final String PUSH_USER_ROLE = "PushUserRole";
+    private static final String FAILED_TO_FETCH_ROLES = "Failed to fetch roles";
+    private static final String FAILED_TO_CONVERT_USER2 = "Failed to convert User {}";
+    private static final String GET_USERS = "GetUsers";
+    private static final String FAILED_TO_GET_USERS = "Failed to get Users";
+    private static final String GET_USER = "GetUser";
+    private static final String FAILED_TO_GET_USER = "Failed to get User";
+    private static final String FAILED_TO_UPDATE_USER_CREDENTIALS = "Failed to updateUserCredentials";
+    private static final String FAILED_TO_EDIT_USER = "Failed to edit user";
+    private static final String EDIT_USER = "EditUser";
+    private static final String RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID = "Received null for argument loginId";
+    private static final String FAILED_TO_CREATE_USER = "Failed to create user {}";
+    private static final String JH0003 = "jh0003";
+    private static final String PUSH_USER = "PushUser";
+    private static final String RECEIVED_NULL_FOR_ARGUMENT_USER = "Received null for argument user";
+    private static final Logger log = Logger.getLogger(EcompIntImpl.class.getName());
 
     public EcompIntImpl() {
         log.debug("EcompIntImpl Class Instantiated");
         log.debug("Start handle request of ECOMP pushUser");
         try {
             if (user == null) {
-                BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER, RECEIVED_NULL_FOR_ARGUMENT_USER, ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(PUSH_USER, RECEIVED_NULL_FOR_ARGUMENT_USER, ErrorSeverity.INFO);
                 log.debug(RECEIVED_NULL_FOR_ARGUMENT_USER);
                 throw new PortalAPIException(RECEIVED_NULL_FOR_ARGUMENT_USER);
             }
             log.debug("modifier id is {}", modifierAttId);
 
             User convertedAsdcUser = EcompUserConverter.convertEcompUserToUser(user);
-            if (convertedAsdcUser == null) {
-                BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER, NULL_POINTER_RETURNED_FROM_USER_CONVERTER, ErrorSeverity.INFO);
-                log.debug(FAILED_TO_CREATE_USER, user);
-                throw new PortalAPIException("Failed to create user " + convertedAsdcUser);
-            }
             userBusinessLogic.createUser(modifierAttId, convertedAsdcUser);
             log.debug("User created {}", user);
         } catch (ComponentException ce) {
                 log.debug("User already exist {}", user);
             } else {
                 log.debug(FAILED_TO_CREATE_USER, user);
-                BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER, FAILED_TO_CREATE_USER, ErrorSeverity.ERROR);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(PUSH_USER, FAILED_TO_CREATE_USER, ErrorSeverity.ERROR);
                 throw new PortalAPIException(FAILED_TO_CREATE_USER + ce.getActionStatus());
             }
-        }
-        catch (Exception e) {
+        } catch (Exception e) {
             log.debug(FAILED_TO_CREATE_USER, user, e);
-            BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER, FAILED_TO_CREATE_USER, ErrorSeverity.ERROR);
+            BeEcompErrorManager.getInstance()
+                    .logInvalidInputError(PUSH_USER, FAILED_TO_CREATE_USER, ErrorSeverity.ERROR);
             throw new PortalAPIException(FAILED_TO_CREATE_USER, e);
         }
     }
         try {
             if (user == null) {
                 log.debug(RECEIVED_NULL_FOR_ARGUMENT_USER);
-                BeEcompErrorManager.getInstance().logInvalidInputError(EDIT_USER, RECEIVED_NULL_FOR_ARGUMENT_USER, ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(EDIT_USER, RECEIVED_NULL_FOR_ARGUMENT_USER, ErrorSeverity.INFO);
                 throw new PortalAPIException(RECEIVED_NULL_FOR_ARGUMENT_USER);
             } else if (loginId == null) {
                 log.debug(RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID);
-                BeEcompErrorManager.getInstance().logInvalidInputError(EDIT_USER, RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID, ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(EDIT_USER, RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID, ErrorSeverity.INFO);
                 throw new PortalAPIException(RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID);
             }
 
 
             if (user.getLoginId() != null && !user.getLoginId().equals(loginId)) {
                 log.debug("loginId and user loginId not equal");
-                BeEcompErrorManager.getInstance().logInvalidInputError(EDIT_USER, "loginId and user loginId not equal", ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(EDIT_USER, "loginId and user loginId not equal", ErrorSeverity.INFO);
                 throw new PortalAPIException("loginId not equals to the user loginId field");
             } else if (user.getLoginId() == null) {
                 user.setLoginId(loginId);
             }
 
             User asdcUser = EcompUserConverter.convertEcompUserToUser(user);
-            if (asdcUser == null) {
-                log.debug(NULL_POINTER_RETURNED_FROM_USER_CONVERTER);
-                BeEcompErrorManager.getInstance().logInvalidInputError(EDIT_USER, NULL_POINTER_RETURNED_FROM_USER_CONVERTER, ErrorSeverity.INFO);
-                throw new PortalAPIException(FAILED_TO_EDIT_USER);
-            }
-
-            Either<User, ResponseFormat> updateUserCredentialsResponse = userBusinessLogic.updateUserCredentials(asdcUser);
+            Either<User, ResponseFormat> updateUserCredentialsResponse =
+                    userBusinessLogic.updateUserCredentials(asdcUser);
 
             if (updateUserCredentialsResponse.isRight()) {
                 log.debug(FAILED_TO_UPDATE_USER_CREDENTIALS);
-                BeEcompErrorManager.getInstance().logInvalidInputError(EDIT_USER, FAILED_TO_UPDATE_USER_CREDENTIALS, ErrorSeverity.ERROR);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(EDIT_USER, FAILED_TO_UPDATE_USER_CREDENTIALS, ErrorSeverity.ERROR);
                 throw new PortalAPIException(FAILED_TO_EDIT_USER + updateUserCredentialsResponse.right().value());
             }
         } catch (Exception e) {
         try {
             if (loginId == null) {
                 log.debug(RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID);
-                BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER, RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID, ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(GET_USER, RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID, ErrorSeverity.INFO);
                 throw new PortalAPIException(RECEIVED_NULL_FOR_ARGUMENT_LOGIN_ID);
             }
             UserBusinessLogic userBusinessLogic = getUserBusinessLogic();
                 return ecompUser.left().value();
             } else {
                 log.debug(FAILED_TO_GET_USER);
-                BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER, FAILED_TO_GET_USER, ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(GET_USER, FAILED_TO_GET_USER, ErrorSeverity.INFO);
                 throw new PortalAPIException(ecompUser.right().value());
             }
         } catch (ComponentException ce) {
             BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER, FAILED_TO_GET_USER, ErrorSeverity.INFO);
             throw new PortalAPIException(FAILED_TO_GET_USER + ce.getActionStatus());
 
-        }
-        catch (Exception e) {
+        } catch (Exception e) {
             log.debug(FAILED_TO_GET_USER);
             throw new PortalAPIException(FAILED_TO_GET_USER, e);
         }
             List<EcompUser> ecompUserList = new LinkedList<>();
             for (User user : users) {
                 Either<EcompUser, String> ecompUser = EcompUserConverter.convertUserToEcompUser(user);
-                if (ecompUser.isRight()) {
-                    log.debug(FAILED_TO_CONVERT_USER2, user);
-                    BeEcompErrorManager.getInstance().logInvalidInputError(GET_USERS, "Failed to convert User" + user.toString(), ErrorSeverity.WARNING);
-                    continue;
-                } else if (ecompUser.left().value() == null) {
+                if (ecompUser.isRight() || ecompUser.left().value() == null) {
                     log.debug(FAILED_TO_CONVERT_USER2, user);
-                    BeEcompErrorManager.getInstance().logInvalidInputError(GET_USERS, "Failed to convert User" + user.toString(), ErrorSeverity.WARNING);
+                    BeEcompErrorManager.getInstance()
+                            .logInvalidInputError(GET_USERS, "Failed to convert User" + user.toString(),
+                                                  ErrorSeverity.WARNING);
                     continue;
                 }
                 ecompUserList.add(ecompUser.left().value());
             return ecompRolesList;
         } catch (Exception e) {
             log.debug(FAILED_TO_FETCH_ROLES);
-            BeEcompErrorManager.getInstance().logInvalidInputError("GetAvailableRoles", FAILED_TO_FETCH_ROLES, ErrorSeverity.INFO);
+            BeEcompErrorManager.getInstance()
+                    .logInvalidInputError("GetAvailableRoles", FAILED_TO_FETCH_ROLES, ErrorSeverity.INFO);
             throw new PortalAPIException("Roles fetching failed", e);
         }
 
     }
 
     /**
-     * The user role updated through this method only
+     * The user role updated through this method only.
      */
     @Override
     public void pushUserRole(String loginId, List<EcompRole> roles) throws PortalAPIException {
             log.debug("pushing role: {} to user: {}", updatedRole, loginId);
             try {
                 userBusinessLogic.updateUserRole(modifierAttId, loginId, updatedRole);
-            }
-            catch (Exception e) {
+            } catch (Exception e) {
                 log.debug("Error: Failed to update role");
-                BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER_ROLE, "Failed to update role", ErrorSeverity.INFO);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(PUSH_USER_ROLE, "Failed to update role", ErrorSeverity.INFO);
                 throw new PortalAPIException("Failed to update role" + e);
             }
         } else {
             log.debug("Error: No roles in List");
-            BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER_ROLE, FAILED_TO_FETCH_ROLES, ErrorSeverity.INFO);
+            BeEcompErrorManager.getInstance()
+                    .logInvalidInputError(PUSH_USER_ROLE, FAILED_TO_FETCH_ROLES, ErrorSeverity.INFO);
             //in this cases we want to deactivate the user
             try {
                 getUserBusinessLogicExt().deActivateUser(modifierAttId, loginId);
-            }
-            catch (Exception e) {
-                log.debug("Error: Failed to deactivate user {}",loginId);
-                BeEcompErrorManager.getInstance().logInvalidInputError(PUSH_USER_ROLE, "Failed to deactivate user", ErrorSeverity.INFO);
+            } catch (Exception e) {
+                log.debug("Error: Failed to deactivate user {}", loginId);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(PUSH_USER_ROLE, "Failed to deactivate user", ErrorSeverity.INFO);
                 throw new PortalAPIException("Error: Failed to deactivate user" + e);
             }
         }
             Either<EcompUser, String> ecompUser = EcompUserConverter.convertUserToEcompUser(user);
             if (ecompUser.isRight()) {
                 log.debug("Error: Failed to convert Roles");
-                BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER_ROLES, FAILED_TO_CONVERT_ROLES, ErrorSeverity.ERROR);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(GET_USER_ROLES, FAILED_TO_CONVERT_ROLES, ErrorSeverity.ERROR);
                 throw new PortalAPIException(ecompUser.right().value());
             } else if (ecompUser.left().value() == null) {
                 log.debug("Error: Failed to convert Roles");
-                BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER_ROLES, FAILED_TO_CONVERT_ROLES, ErrorSeverity.ERROR);
+                BeEcompErrorManager.getInstance()
+                        .logInvalidInputError(GET_USER_ROLES, FAILED_TO_CONVERT_ROLES, ErrorSeverity.ERROR);
                 throw new PortalAPIException();
             }
             return new LinkedList<>(ecompUser.left().value().getRoles());
         } catch (ComponentException ce) {
             log.debug(ERROR_FAILED_TO_GET_ROLES);
-            BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER_ROLES, FAILED_TO_GET_ROLES, ErrorSeverity.INFO);
+            BeEcompErrorManager.getInstance()
+                    .logInvalidInputError(GET_USER_ROLES, FAILED_TO_GET_ROLES, ErrorSeverity.INFO);
             throw new PortalAPIException(FAILED_TO_GET_ROLES + ce.getActionStatus());
-        }
-        catch (Exception e) {
+        } catch (Exception e) {
             log.debug(ERROR_FAILED_TO_GET_ROLES);
-            BeEcompErrorManager.getInstance().logInvalidInputError(GET_USER_ROLES, FAILED_TO_GET_ROLES, ErrorSeverity.INFO);
+            BeEcompErrorManager.getInstance()
+                    .logInvalidInputError(GET_USER_ROLES, FAILED_TO_GET_ROLES, ErrorSeverity.INFO);
             throw new PortalAPIException(FAILED_TO_GET_ROLES, e);
         }
     }
 
     @Override
-    public boolean isAppAuthenticated(HttpServletRequest request, Map<String,String> appCredentials) throws PortalAPIException {
+    public boolean isAppAuthenticated(HttpServletRequest request, Map<String, String> appCredentials)
+            throws PortalAPIException {
         final String portal_key = PortalApiProperties.getProperty("portal_pass");
         final String portal_user = PortalApiProperties.getProperty("portal_user");
-        final String USERNAME = request.getHeader("username");
-        final String PASSWORD = request.getHeader("password");
+        final String username = request.getHeader("username");
+        final String password = request.getHeader("password");
 
-        if (USERNAME != null && PASSWORD != null) {
+        if (username != null && password != null) {
             try {
-                if (USERNAME.equals(CipherUtil.decryptPKC(portal_user)) &&
-                        PASSWORD.equals(CipherUtil.decryptPKC(portal_key))) {
-                    log.debug("User authenticated - Username: {}", USERNAME);
+                if (username.equals(CipherUtil.decryptPKC(portal_user))
+                        && password.equals(CipherUtil.decryptPKC(portal_key))) {
+                    log.debug("User authenticated - Username: {}", username);
                     return true;
                 }
             } catch (CipherUtilException e) {
      * If any error occurs, the method should throw PortalApiException with an
      * appropriate message. The FW library will catch the exception and send an
      * appropriate response to Portal.
-     * 
-      * As a guideline for AT&T specific implementation, see the sample apps
-     * repository
-     * https://codecloud.web.att.com/projects/EP_SDK/repos/ecomp_portal_sdk_third_party/
-     * for a sample implementation for on-boarded applications using EPSDK-FW.
      * However, the app can always choose to have a custom implementation of
      * this method. For Open-source implementation, for example, the app will
      * have a totally different implementation for this method.
-     * 
-      * @param request
+     *
+     * @param request The HttpServletRequest
      * @return true if the request contains appropriate credentials, else false.
-     * @throws PortalAPIException
-     *             If an unexpected error occurs while processing the request.
+     * @throws PortalAPIException If an unexpected error occurs while processing the request.
      */
     @Override
     public String getUserId(HttpServletRequest request) throws PortalAPIException {
         return request.getHeader(Constants.USER_ID_HEADER);
     }
 
-    //TODO for what the following method stands for
     @Override
     public Map<String, String> getCredentials() throws PortalAPIException {
         return null;