RolesApprovalSystemController up

RolesApprovalSystemController up and all needed services

Issue-ID: PORTAL-710
Change-Id: Ib93b211392dfdadd1fc903ee94f9fb5a7d3e8b52
Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>

12 files changed, 795 insertions, 129 deletions

diff --git a/portal-BE/src/main/java/org/onap/portal/controller/RolesApprovalSystemController.java b/portal-BE/src/main/java/org/onap/portal/controller/RolesApprovalSystemController.java
new file mode 100644
index 00000000..53bf7e11
--- /dev/null
+++ b/portal-BE/src/main/java/org/onap/portal/controller/RolesApprovalSystemController.java
@@ -0,0 +1,207 @@
+/*-
+ * ============LICENSE_START==========================================
+ * ONAP Portal
+ * ===================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software 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.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * 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.
+ *
+ * ============LICENSE_END============================================
+ *
+ *
+ */
+
+package org.onap.portal.controller;
+
+import io.swagger.annotations.ApiOperation;
+import java.util.ArrayList;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.onap.portal.domain.dto.PortalRestResponse;
+import org.onap.portal.domain.dto.PortalRestStatusEnum;
+import org.onap.portal.domain.dto.model.ExternalSystemRoleApproval;
+import org.onap.portal.domain.dto.model.ExternalSystemUser;
+import org.onap.portal.domain.dto.transport.ExternalRequestFieldsValidator;
+import org.onap.portal.service.AdminRolesService;
+import org.onap.portal.service.ExternalAccessRolesService;
+import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/auxapi")
+@Configuration
+@EnableAspectJAutoProxy
+public class RolesApprovalSystemController {
+
+    private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(RolesApprovalSystemController.class);
+
+    @Autowired
+    private AdminRolesService userRolesService;
+
+    @ApiOperation(value = "Creates an application user with the specified roles.", response = PortalRestResponse.class)
+    @RequestMapping(value = {"/userProfile"}, method = RequestMethod.POST, produces = "application/json")
+    public PortalRestResponse<String> postUserProfile(HttpServletRequest request,
+        @RequestBody ExternalSystemUser extSysUser, HttpServletResponse response) {
+        ExternalRequestFieldsValidator reqResult = null;
+        try {
+            logger.info(EELFLoggerDelegate.debugLogger, "postUserProfile: request received for app {}, user {}",
+                extSysUser.getApplicationName(), extSysUser.getLoginId());
+
+            validateExtSystemUser(extSysUser, true);
+            reqResult = userRolesService.setExternalRequestUserAppRole(extSysUser, "POST");
+            if (!reqResult.isResult()) {
+                throw new Exception(reqResult.getDetailMessage());
+            }
+        } catch (Exception e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "postUserProfile: failed for app {}, user {}",
+                extSysUser.getApplicationName(), extSysUser.getLoginId(), e);
+            if (reqResult == null || (!reqResult.isResult() && !e.getMessage().contains("404") && !e.getMessage()
+                .contains("405"))) {
+                response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            } else if (e.getMessage().contains("404")) {
+                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            } else if (e.getMessage().contains("500")) {
+                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            } else if (e.getMessage().contains("405")) {
+                response.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR, e.getMessage(),
+                    "save user profile failed");
+            } else {
+                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR, e.getMessage(),
+                    "save user profile failed");
+            }
+        }
+        return new PortalRestResponse<String>(PortalRestStatusEnum.OK, reqResult.getDetailMessage(), "Success");
+    }
+
+    @ApiOperation(value = "Updates an application user to have only the specified roles.", response = PortalRestResponse.class)
+    @RequestMapping(value = {"/userProfile"}, method = RequestMethod.PUT, produces = "application/json")
+    public PortalRestResponse<String> putUserProfile(HttpServletRequest request,
+        @RequestBody ExternalSystemUser extSysUser, HttpServletResponse response) {
+        ExternalRequestFieldsValidator reqResult = null;
+        try {
+            logger.info(EELFLoggerDelegate.debugLogger, "putUserProfile: request received for app {}, user {}",
+                extSysUser.getApplicationName(), extSysUser.getLoginId());
+            validateExtSystemUser(extSysUser, true);
+            reqResult = userRolesService.setExternalRequestUserAppRole(extSysUser, "PUT");
+            if (!reqResult.isResult()) {
+                throw new Exception(reqResult.getDetailMessage());
+            }
+        } catch (Exception e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "putUserProfile: failed for app {}, user {}",
+                extSysUser.getApplicationName(), extSysUser.getLoginId(), e);
+            if (reqResult == null || (!reqResult.isResult() && !e.getMessage().contains("404") && !e.getMessage()
+                .contains("405"))) {
+                response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            } else if (e.getMessage().contains("404")) {
+                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            } else if (e.getMessage().contains("500")) {
+                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            } else if (e.getMessage().contains("405")) {
+                response.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR, e.getMessage(),
+                    "save user profile failed");
+            } else {
+                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "save user profile failed");
+            }
+        }
+        return new PortalRestResponse<String>(PortalRestStatusEnum.OK, reqResult.getDetailMessage(), "Success");
+    }
+
+    @ApiOperation(value = "Processes a request to delete one or more application roles for one	specified user who has roles.", response = PortalRestResponse.class)
+    @RequestMapping(value = {"/userProfile"}, method = RequestMethod.DELETE, produces = "application/json")
+    public PortalRestResponse<String> deleteUserProfile(HttpServletRequest request,
+        @RequestBody ExternalSystemUser extSysUser, HttpServletResponse response) {
+        ExternalRequestFieldsValidator reqResult = null;
+        try {
+            logger.info(EELFLoggerDelegate.debugLogger, "deleteUserProfile: request received for app {}, user {}",
+                extSysUser.getApplicationName(), extSysUser.getLoginId());
+            validateExtSystemUser(extSysUser, false);
+            // Ignore any roles that might be mistakenly present in the request
+            extSysUser.setRoles(new ArrayList<ExternalSystemRoleApproval>());
+            reqResult = userRolesService.setExternalRequestUserAppRole(extSysUser, "DELETE");
+            if (!reqResult.isResult()) {
+                throw new Exception(reqResult.getDetailMessage());
+            }
+        } catch (Exception e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "deleteUserProfile: failed for app {}, user {}",
+                extSysUser.getApplicationName(), extSysUser.getLoginId(), e);
+            if (reqResult == null || (!reqResult.isResult() && !e.getMessage().contains("404"))) {
+                response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "delete user profile failed");
+            } else if (e.getMessage().contains("404")) {
+                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "delete user profile failed");
+            } else {
+                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                return new PortalRestResponse<String>(PortalRestStatusEnum.ERROR,
+                    e.getMessage(), "delete user profile failed");
+            }
+        }
+        return new PortalRestResponse<String>(PortalRestStatusEnum.OK, "Deleted Successfully", "Success");
+    }
+
+    private void validateExtSystemUser(ExternalSystemUser extSysUser, boolean rolesRequired) throws Exception {
+        if (extSysUser.getLoginId() == null || extSysUser.getLoginId() == "") {
+            throw new Exception("Request has no login ID");
+        }
+        if (extSysUser.getApplicationName() == null || extSysUser.getApplicationName() == "") {
+            throw new Exception("Request has no application name");
+        }
+        if (extSysUser.getMyloginrequestId() == null) {
+            throw new Exception("Request has no request ID");
+        }
+        if (rolesRequired && (extSysUser.getRoles() == null || extSysUser.getRoles().size() == 0)) {
+            throw new Exception("Request has no roles");
+        }
+    }
+
+}
diff --git a/portal-BE/src/main/java/org/onap/portal/controller/RolesApprovalSystemVersionController.java b/portal-BE/src/main/java/org/onap/portal/controller/RolesApprovalSystemVersionController.java
new file mode 100644
index 00000000..79311886
--- /dev/null
+++ b/portal-BE/src/main/java/org/onap/portal/controller/RolesApprovalSystemVersionController.java
@@ -0,0 +1,78 @@
+/*-
+ * ============LICENSE_START==========================================
+ * ONAP Portal
+ * ===================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software 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.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * 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.
+ *
+ * ============LICENSE_END============================================
+ *
+ */
+package org.onap.portal.controller;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.onap.portal.annotation.ApiVersion;
+import org.onap.portal.domain.dto.PortalRestResponse;
+import org.onap.portal.domain.dto.model.ExternalSystemUser;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+
+@Configuration
+@EnableAspectJAutoProxy
+@ApiVersion
+public class RolesApprovalSystemVersionController {
+
+    private final RolesApprovalSystemController rolesApprovalSystemController;
+
+    @Autowired
+    public RolesApprovalSystemVersionController(
+        RolesApprovalSystemController rolesApprovalSystemController) {
+        this.rolesApprovalSystemController = rolesApprovalSystemController;
+    }
+
+    @ApiVersion(max = "v3", service = "/v3/userProfile", min = 0, method = "POST")
+    public PortalRestResponse<String> postUserProfile(HttpServletRequest request,
+        HttpServletResponse response, ExternalSystemUser extSysUser) {
+        return rolesApprovalSystemController.postUserProfile(request, extSysUser, response);
+    }
+
+    @ApiVersion(max = "v3", service = "/v3/userProfile", min = 0, method = "PUT")
+    public PortalRestResponse<String> putUserProfile(HttpServletRequest request,
+        HttpServletResponse response, ExternalSystemUser extSysUser) {
+        return rolesApprovalSystemController.putUserProfile(request, extSysUser, response);
+    }
+
+    @ApiVersion(max = "v3", service = "/v3/userProfile", min = 0, method = "DELETE")
+    public PortalRestResponse<String> deleteUserProfile(HttpServletRequest request,
+        HttpServletResponse response, ExternalSystemUser extSysUser) {
+        return rolesApprovalSystemController.deleteUserProfile(request, extSysUser, response);
+    }
+}
diff --git a/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequest.java b/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequest.java
index 113863c3..7828c134 100644
--- a/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequest.java
+++ b/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequest.java
@@ -100,42 +100,42 @@ CREATE TABLE `ep_user_roles_request` (
 @Setter
 @Entity
 public class EpUserRolesRequest implements Serializable {
-       @Id
 
-  @GeneratedValue(strategy = GenerationType.AUTO)
-       @Column(name = "req_id", length = 11, nullable = false, columnDefinition = "int(11) AUTO_INCREMENT")
-       @Digits(integer = 11, fraction = 0)
-       private Long reqId;
-       @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
-       @JoinColumn(name = "user_id", nullable = false, columnDefinition = "bigint")
-       @NotNull
-       @Valid
-       private FnUser userId;
-       @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
-       @JoinColumn(name = "app_id", nullable = false, columnDefinition = "bigint")
-       @NotNull
-       @Valid
-       private FnApp appId;
-       @Column(name = "created_date", nullable = false, columnDefinition = "datetime default now()")
-       @PastOrPresent
-       private LocalDateTime createdDate;
-       @Column(name = "updated_date", nullable = false, columnDefinition = "datetime default now()")
-       @PastOrPresent
-       private LocalDateTime updatedDate;
-       @Column(name = "request_status", nullable = false, length = 50)
-       @Size(max = 50)
-       @NotNull
-       @SafeHtml
-       private String requestStatus;
-       @OneToMany(
-               targetEntity = EpUserRolesRequestDet.class,
-               mappedBy = "reqId",
-               cascade = CascadeType.MERGE,
-               fetch = FetchType.LAZY
-       )
-       private Set<EpUserRolesRequestDet> epUserRolesRequestDets;
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "req_id", length = 11, nullable = false, columnDefinition = "int(11) AUTO_INCREMENT")
+    @Digits(integer = 11, fraction = 0)
+    private Long reqId;
+    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
+    @JoinColumn(name = "user_id", nullable = false, columnDefinition = "bigint")
+    @NotNull
+    @Valid
+    private FnUser userId;
+    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
+    @JoinColumn(name = "app_id", nullable = false, columnDefinition = "bigint")
+    @NotNull
+    @Valid
+    private FnApp appId;
+    @Column(name = "created_date", nullable = false, columnDefinition = "datetime default now()")
+    @PastOrPresent
+    private LocalDateTime createdDate;
+    @Column(name = "updated_date", nullable = false, columnDefinition = "datetime default now()")
+    @PastOrPresent
+    private LocalDateTime updatedDate;
+    @Column(name = "request_status", nullable = false, length = 50)
+    @Size(max = 50)
+    @NotNull
+    @SafeHtml
+    private String requestStatus;
+    @OneToMany(
+        targetEntity = EpUserRolesRequestDet.class,
+        mappedBy = "reqId",
+        cascade = CascadeType.MERGE,
+        fetch = FetchType.LAZY
+    )
+    private Set<EpUserRolesRequestDet> epUserRolesRequestDets;
 
-       public void setEpRequestIdDetail(Set<EpUserRolesRequestDet> epMyLoginsDetail) {
-              this.epUserRolesRequestDets = epMyLoginsDetail;
-       }
+    public void setEpRequestIdDetail(Set<EpUserRolesRequestDet> epMyLoginsDetail) {
+        this.epUserRolesRequestDets = epMyLoginsDetail;
+    }
 }
diff --git a/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequestDet.java b/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequestDet.java
index 4d2fcaea..1af088e5 100644
--- a/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequestDet.java
+++ b/portal-BE/src/main/java/org/onap/portal/domain/db/ep/EpUserRolesRequestDet.java
@@ -89,8 +89,8 @@ CREATE TABLE `ep_user_roles_request_det` (
 })
 
 @Table(name = "ep_user_roles_request_det", indexes = {
-        @Index(name = "fk_user_roles_req_fn_req_id", columnList = "req_id"),
-        @Index(name = "fk_user_roles_req_fn_role_id", columnList = "requested_role_id")
+    @Index(name = "fk_user_roles_req_fn_req_id", columnList = "req_id"),
+    @Index(name = "fk_user_roles_req_fn_role_id", columnList = "requested_role_id")
 })
 @NoArgsConstructor
 @AllArgsConstructor
@@ -99,25 +99,25 @@ CREATE TABLE `ep_user_roles_request_det` (
 @Entity
 public class EpUserRolesRequestDet implements Serializable {
 
-       @Id
-
-  @GeneratedValue(strategy = GenerationType.AUTO)
-       @Column(name = "id", length = 11, nullable = false, columnDefinition = "int(11) AUTO_INCREMENT")
-       @Digits(integer = 11, fraction = 0)
-       private Long id;
-       @OneToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
-       @JoinColumn(name = "req_id", columnDefinition = "int(11) default null")
-       @Valid
-       private EpUserRolesRequest reqId;
-       @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
-       @JoinColumn(name = "requested_role_id", nullable = false, columnDefinition = "bigint")
-       @NotNull
-       @Valid
-       private FnRole requestedRoleId;
-       @Column(name = "request_type", length = 10, nullable = false)
-       @Size(max = 10)
-       @NotNull
-       @SafeHtml
-       private String requestType;
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "id", length = 11, nullable = false, columnDefinition = "int(11) AUTO_INCREMENT")
+    @Digits(integer = 11, fraction = 0)
+    private Long id;
+    //TODO One to many
+    @OneToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
+    @JoinColumn(name = "req_id", columnDefinition = "int(11) default null")
+    @Valid
+    private EpUserRolesRequest reqId;
+    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.MERGE)
+    @JoinColumn(name = "requested_role_id", nullable = false, columnDefinition = "bigint")
+    @NotNull
+    @Valid
+    private FnRole requestedRoleId;
+    @Column(name = "request_type", length = 10, nullable = false)
+    @Size(max = 10)
+    @NotNull
+    @SafeHtml
+    private String requestType;
 
 }
diff --git a/portal-BE/src/main/java/org/onap/portal/domain/db/fn/FnApp.java b/portal-BE/src/main/java/org/onap/portal/domain/db/fn/FnApp.java
index 307abebd..beb5bd55 100644
--- a/portal-BE/src/main/java/org/onap/portal/domain/db/fn/FnApp.java
+++ b/portal-BE/src/main/java/org/onap/portal/domain/db/fn/FnApp.java
@@ -108,10 +108,15 @@ CREATE TABLE `fn_app` (
         query = "from FnApp where uebKey = :uebKey"),
     @NamedQuery(
         name = "FnApp.getCentralizedApps",
-        query = "from FnApp where authCentral = 'Y' and open = 'N' and authNamespace is not null"
+        query = "from FnApp where authCentral = 'Y' and open = 'N' and authNamespace is not null"),
+    @NamedQuery(
+        name = "FnApp.retrieveWhereAppName",
+        query = "FROM FnApp WHERE appName = :appName"
     )
 })
 
+//TODO appName as unique index?
+
 @Table(name = "fn_app")
 @NoArgsConstructor
 @AllArgsConstructor
diff --git a/portal-BE/src/main/java/org/onap/portal/domain/dto/model/ExternalSystemRoleApproval.java b/portal-BE/src/main/java/org/onap/portal/domain/dto/model/ExternalSystemRoleApproval.java
new file mode 100644
index 00000000..7b13b1c6
--- /dev/null
+++ b/portal-BE/src/main/java/org/onap/portal/domain/dto/model/ExternalSystemRoleApproval.java
@@ -0,0 +1,56 @@
+/*-
+ * ============LICENSE_START==========================================
+ * ONAP Portal
+ * ===================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software 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.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * 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.
+ *
+ * ============LICENSE_END============================================
+ *
+ *
+ */
+package org.onap.portal.domain.dto.model;
+
+import java.io.Serializable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.hibernate.validator.constraints.SafeHtml;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class ExternalSystemRoleApproval implements Serializable {
+
+    @SafeHtml
+    private String roleName;
+
+}
diff --git a/portal-BE/src/main/java/org/onap/portal/domain/dto/model/ExternalSystemUser.java b/portal-BE/src/main/java/org/onap/portal/domain/dto/model/ExternalSystemUser.java
new file mode 100644
index 00000000..95b440a0
--- /dev/null
+++ b/portal-BE/src/main/java/org/onap/portal/domain/dto/model/ExternalSystemUser.java
@@ -0,0 +1,64 @@
+/*-
+ * ============LICENSE_START==========================================
+ * ONAP Portal
+ * ===================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ===================================================================
+ *
+ * Unless otherwise specified, all software contained herein is licensed
+ * under the Apache License, Version 2.0 (the "License");
+ * you may not use this software 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.
+ *
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             https://creativecommons.org/licenses/by/4.0/
+ *
+ * Unless required by applicable law or agreed to in writing, documentation
+ * 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.
+ *
+ * ============LICENSE_END============================================
+ *
+ *
+ */
+package org.onap.portal.domain.dto.model;
+
+
+import java.util.List;
+import javax.validation.Valid;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.hibernate.validator.constraints.SafeHtml;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class ExternalSystemUser {
+
+    @SafeHtml
+    private String loginId;
+    @SafeHtml
+    private String applicationName;
+    @SafeHtml
+    private String myloginrequestId;
+    @Valid
+    private List<ExternalSystemRoleApproval> roles;
+
+}
diff --git a/portal-BE/src/main/java/org/onap/portal/service/AdminRolesService.java b/portal-BE/src/main/java/org/onap/portal/service/AdminRolesService.java
index f8ef4a99..3ee30827 100644
--- a/portal-BE/src/main/java/org/onap/portal/service/AdminRolesService.java
+++ b/portal-BE/src/main/java/org/onap/portal/service/AdminRolesService.java
@@ -78,7 +78,9 @@ import org.onap.portal.domain.db.fn.FnRole;
 import org.onap.portal.domain.db.fn.FnRoleFunction;
 import org.onap.portal.domain.db.fn.FnUser;
 import org.onap.portal.domain.db.fn.FnUserRole;
-import org.onap.portal.domain.dto.ecomp.EPUserApp;
+import org.onap.portal.domain.dto.ecomp.EPUserAppRolesRequest;
+import org.onap.portal.domain.dto.model.ExternalSystemRoleApproval;
+import org.onap.portal.domain.dto.model.ExternalSystemUser;
 import org.onap.portal.domain.dto.transport.AppNameIdIsAdmin;
 import org.onap.portal.domain.dto.transport.AppWithRolesForUser;
 import org.onap.portal.domain.dto.transport.AppsListWithAdminRole;
@@ -98,16 +100,16 @@ import org.onap.portal.exception.RoleFunctionException;
 import org.onap.portal.exception.SyncUserRolesException;
 import org.onap.portal.logging.format.EPAppMessagesEnum;
 import org.onap.portal.logging.logic.EPLogUtil;
-import org.onap.portal.service.appFunction.EpAppFunctionService;
-import org.onap.portal.service.roleFunction.FnRoleFunctionService;
-import org.onap.portal.service.userRolesRequestDet.EpUserRolesRequestDetService;
-import org.onap.portal.service.userRolesRequest.EpUserRolesRequestService;
 import org.onap.portal.service.app.FnAppService;
-import org.onap.portal.service.menuFunctionalRoles.FnMenuFunctionalRolesService;
+import org.onap.portal.service.appFunction.EpAppFunctionService;
 import org.onap.portal.service.menuFunctional.FnMenuFunctionalService;
+import org.onap.portal.service.menuFunctionalRoles.FnMenuFunctionalRolesService;
 import org.onap.portal.service.role.FnRoleService;
-import org.onap.portal.service.userRole.FnUserRoleService;
+import org.onap.portal.service.roleFunction.FnRoleFunctionService;
 import org.onap.portal.service.user.FnUserService;
+import org.onap.portal.service.userRole.FnUserRoleService;
+import org.onap.portal.service.userRolesRequest.EpUserRolesRequestService;
+import org.onap.portal.service.userRolesRequestDet.EpUserRolesRequestDetService;
 import org.onap.portal.utils.EPCommonSystemProperties;
 import org.onap.portal.utils.EPUserUtils;
 import org.onap.portal.utils.EcompPortalUtils;
@@ -546,7 +548,7 @@ public class AdminRolesService {
             FnRole appRole = getAppRoles.stream()
                 .filter(applicationRole -> epRole.getId().equals(applicationRole.getId())).findAny().orElse(null);
             List<FnRoleFunction> fnRoleFunctions = new ArrayList<>();
-            for (DomainVo vo: epRole.getRoleFunctions()){
+            for (DomainVo vo : epRole.getRoleFunctions()) {
                 Optional<FnRoleFunction> roleFunction = fnRoleFunctionService.findById(vo.getId());
                 roleFunction.ifPresent(fnRoleFunctions::add);
             }
@@ -688,23 +690,6 @@ public class AdminRolesService {
         }
     }
 
-    private Set<EcompRole> postUsersRolesToLocalApp(List<RoleInAppForUser> roleInAppForUserList) {
-        return constructUsersEcompRoles(roleInAppForUserList);
-    }
-
-    private Set<EcompRole> constructUsersEcompRoles(List<RoleInAppForUser> roleInAppForUserList) {
-        Set<EcompRole> existingUserRoles = new TreeSet<>();
-        for (RoleInAppForUser roleInAppForUser : roleInAppForUserList) {
-            if (roleInAppForUser.getIsApplied()) {
-                EcompRole ecompRole = new EcompRole();
-                ecompRole.setId(roleInAppForUser.getRoleId());
-                ecompRole.setName(roleInAppForUser.getRoleName());
-                existingUserRoles.add(ecompRole);
-            }
-        }
-        return existingUserRoles;
-    }
-
     public RolesInAppForUser constructRolesInAppForUserUpdate(String userId, Long appId,
         Set<EcompRole> userRolesInRemoteApp) {
         RolesInAppForUser result;
@@ -1935,45 +1920,302 @@ public class AdminRolesService {
     }
 
     public AppsListWithAdminRole getAppsWithAdminRoleStateForUser(String orgUserId) {
-            AppsListWithAdminRole appsListWithAdminRole = null;
+        AppsListWithAdminRole appsListWithAdminRole = null;
 
+        try {
+            List<FnUser> userList = fnUserService.getUserWithOrgUserId(orgUserId);
+            HashMap<Long, Long> appsUserAdmin = new HashMap<>();
+            if (userList != null && userList.size() > 0) {
+                FnUser user = userList.get(0);
+                List<FnUserRole> userAppList = new ArrayList<>();
+                try {
+                    userAppList = fnUserRoleService.retrieveByUserIdAndRoleId(user.getId(), ACCOUNT_ADMIN_ROLE_ID);
+                } catch (Exception e) {
+                    logger.error(EELFLoggerDelegate.errorLogger, "getAppsWithAdminRoleStateForUser 1 failed", e);
+                    EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
+                }
+                for (FnUserRole userApp : userAppList) {
+                    appsUserAdmin.put(userApp.getFnAppId().getId(), userApp.getUserId().getId());
+                }
+            }
+
+            appsListWithAdminRole = new AppsListWithAdminRole();
+            appsListWithAdminRole.setOrgUserId(orgUserId);
+            List<FnApp> appsList = new ArrayList<>();
+            try {
+                appsList = fnAppService.findAll();
+            } catch (Exception e) {
+                logger.error(EELFLoggerDelegate.errorLogger, "getAppsWithAdminRoleStateForUser 2 failed", e);
+                EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
+            }
+            for (FnApp app : appsList) {
+                AppNameIdIsAdmin appNameIdIsAdmin = new AppNameIdIsAdmin();
+                appNameIdIsAdmin.setId(app.getId());
+                appNameIdIsAdmin.setAppName(app.getAppName());
+                appNameIdIsAdmin.setIsAdmin(appsUserAdmin.containsKey(app.getId()));
+                appNameIdIsAdmin.setRestrictedApp(app.isRestrictedApp());
+                appsListWithAdminRole.getAppsRoles().add(appNameIdIsAdmin);
+            }
+        } catch (Exception e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "getAppsWithAdminRoleStateForUser 3 failed", e);
+        }
+        return appsListWithAdminRole;
+    }
+
+    public ExternalRequestFieldsValidator setExternalRequestUserAppRole(ExternalSystemUser newAppRolesForUser,
+        String reqType) {
+        boolean result = false;
+        boolean externalSystemRequest = true;
+        List<FnUser> userInfo = null;
+        FnUser user = null;
+        List<EpUserRolesRequest> epRequestId = null;
+        String orgUserId = "";
+        String updateStatus = "";
+        String reqMessage = "";
+        FnApp app = null;
+        if (newAppRolesForUser != null && newAppRolesForUser.getLoginId() != null) {
+            orgUserId = newAppRolesForUser.getLoginId().trim();
+        }
+        String appName = newAppRolesForUser.getApplicationName();
+        String logMessage = ("DELETE").equals(reqType) ? "Deleting" : "Assigning/Updating";
+        if (orgUserId.length() > 0) {
+            ObjectMapper mapper = new ObjectMapper();
+            mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+            int epRequestIdSize = 0;
             try {
-                List<FnUser> userList = fnUserService.getUserWithOrgUserId(orgUserId);
-                HashMap<Long, Long> appsUserAdmin = new HashMap<>();
-                if (userList!= null && userList.size() > 0) {
-                    FnUser user = userList.get(0);
-                    List<FnUserRole> userAppList = new ArrayList<>();
+                app = fnAppService.getAppDetail(appName);
+                userInfo = checkIfUserExists(orgUserId);
+                reqMessage = "Updated Successfully";
+                if (!reqType.equals("DELETE") && (userInfo.isEmpty())) {
+                    reqMessage = validateNewUser(orgUserId, app);
+                }
+                if (!userInfo.isEmpty()) {
+                    validateExternalRequestFields(app);
+                    user = userInfo.get(0);
+                    epRequestId = epUserRolesRequestService.userAppRolesRequestList(user.getId(), app.getId());
+                    epRequestIdSize = epRequestId.size();
+                }
+                if (!app.getId().equals(PortalConstants.PORTAL_APP_ID) && !app.getAuthCentral()) {
+                    logger.debug(EELFLoggerDelegate.debugLogger,
+                        "setExternalRequestUserAppRole: Starting GET roles for app {}", app.getId());
+                    EcompRole[] appRoles = applicationsRestClientService.get(EcompRole[].class, app.getId(), "/roles");
+                    logger.debug(EELFLoggerDelegate.debugLogger,
+                        "setExternalRequestUserAppRole: Finshed GET roles for app {} and payload {}", app.getId(),
+                        appRoles);
+                    if (appRoles.length > 0) {
+                        syncAppRoles(app.getId(), appRoles);
+                    }
+                }
+                List<RoleInAppForUser> roleInAppForUserList = roleInAppForUserList(newAppRolesForUser.getRoles(),
+                    app.getId(), app.getMlAppName());
+                List<EcompUserAppRoles> userRoleList = null;
+                if (!userInfo.isEmpty()) {
+                    userRoleList = ecompUserAppRolesService.getUserAppExistingRoles(app.getId(), user.getId());
+                }
+                // Check if list contains just account admin role
+                boolean checkIfAdminRoleExists = false;
+                if (reqType.equals("DELETE") && userRoleList != null) {
+                    checkIfAdminRoleExists = userRoleList.stream()
+                        .anyMatch(userRole -> userRole.getRoleId().equals(PortalConstants.ACCOUNT_ADMIN_ROLE_ID));
+                } else {
+                    checkIfAdminRoleExists = roleInAppForUserList.stream()
+                        .anyMatch(roleList -> roleList.getRoleId().equals(PortalConstants.ACCOUNT_ADMIN_ROLE_ID));
+                }
+                if (app.getAuthCentral()) {
                     try {
-                        userAppList = fnUserRoleService.retrieveByUserIdAndRoleId(user.getId(), ACCOUNT_ADMIN_ROLE_ID);
+                        if (!(app.getId().equals(PortalConstants.PORTAL_APP_ID) && reqType.equals("DELETE"))
+                            && ((checkIfAdminRoleExists && roleInAppForUserList.size() > 1)
+                            || (!checkIfAdminRoleExists && roleInAppForUserList.size() >= 1))) {
+                            List<RoleInAppForUser> remoteUserRoles = new ArrayList<>(roleInAppForUserList);
+                            remoteUserRoles.removeIf(role -> {
+                                return (role.getRoleId().equals(PortalConstants.ACCOUNT_ADMIN_ROLE_ID));
+                            });
+                            String orgUserIdNewOrExist = (!userInfo.isEmpty()) ? user.getOrgUserId() : orgUserId;
+                            pushRemoteUser(remoteUserRoles, orgUserIdNewOrExist, app, mapper,
+                                applicationsRestClientService, true);
+                        }
                     } catch (Exception e) {
-                        logger.error(EELFLoggerDelegate.errorLogger, "getAppsWithAdminRoleStateForUser 1 failed", e);
-                        EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
+                        reqMessage = e.getMessage();
+                        logger.error(EELFLoggerDelegate.errorLogger,
+                            "setExternalRequestUserAppRole: Failed to added remote user", e);
+                        throw new Exception(reqMessage);
+                    }
+                    Set<EcompRole> userRolesInLocalApp = postUsersRolesToLocalApp(roleInAppForUserList);
+                    RolesInAppForUser rolesInAppForUser = constructRolesInAppForUserUpdate(orgUserId, app.getId(),
+                        userRolesInLocalApp);
+                    List<RoleInAppForUser> roleAppUserList = rolesInAppForUser.getRoles();
+                    Set<EcompRole> rolesGotDeletedByApprover = new TreeSet<>();
+                    if (EcompPortalUtils.checkIfRemoteCentralAccessAllowed()) {
+                        updateUserRolesInExternalSystem(app, rolesInAppForUser.getOrgUserId(), roleAppUserList,
+                            externalSystemRequest, false, rolesGotDeletedByApprover, false);
                     }
-                    for (FnUserRole userApp : userAppList) {
-                        appsUserAdmin.put(userApp.getFnAppId().getId(), userApp.getUserId().getId());
+                    logger.info(EELFLoggerDelegate.debugLogger,
+                        "setExternalRequestUserAppRole: {} user app roles: for app {}, user {}", logMessage,
+                        newAppRolesForUser.getApplicationName(), newAppRolesForUser.getLoginId());
+                    result = applyChangesInUserRolesForAppToEcompDB(rolesInAppForUser, externalSystemRequest, reqType,
+                        false, rolesGotDeletedByApprover, false);
+                } else if (!app.getAuthCentral() && app.getId().equals(PortalConstants.PORTAL_APP_ID)) {
+                    Set<EcompRole> userRolesInLocalApp = postUsersRolesToLocalApp(roleInAppForUserList);
+                    RolesInAppForUser rolesInAppForUser = constructRolesInAppForUserUpdate(orgUserId, app.getId(),
+                        userRolesInLocalApp);
+                    Set<EcompRole> rolesGotDeletedByApprover = new TreeSet<>();
+
+                    result = applyChangesInUserRolesForAppToEcompDB(rolesInAppForUser, externalSystemRequest, reqType,
+                        false, rolesGotDeletedByApprover, false);
+                } else {
+                    if (!((roleInAppForUserList.size() == 1 || reqType.equals("DELETE")) && checkIfAdminRoleExists)) {
+                        FnUser remoteAppUser = null;
+                        remoteAppUser = checkIfRemoteUserExits(orgUserId, app, applicationsRestClientService);
+                        if (remoteAppUser == null) {
+                            addRemoteUser(roleInAppForUserList, orgUserId, app, mapper,
+                                applicationsRestClientService);
+                            reqMessage = "Saved Successfully";
+                        }
+                        Set<EcompRole> userRolesInRemoteApp = postUsersRolesToRemoteApp(roleInAppForUserList, mapper,
+                            applicationsRestClientService, app.getId(), orgUserId);
+                        RolesInAppForUser rolesInAppForUser = constructRolesInAppForUserUpdate(orgUserId, app.getId(),
+                            userRolesInRemoteApp);
+                        logger.info(EELFLoggerDelegate.debugLogger,
+                            "setExternalRequestUserAppRole: {} user app roles: for app {}, user {}", logMessage,
+                            newAppRolesForUser.getApplicationName(), newAppRolesForUser.getLoginId());
+                        Set<EcompRole> rolesGotDeletedByApprover = new TreeSet<>();
+                        result = applyChangesInUserRolesForAppToEcompDB(rolesInAppForUser, externalSystemRequest,
+                            reqType, false, rolesGotDeletedByApprover, false);
+                    } else {
+                        if (!(reqType.equals("DELETE")) && userInfo.isEmpty()) {
+                            reqMessage = "Saved Successfully";
+                        }
+                        Set<EcompRole> userRolesInRemoteApp = constructUsersEcompRoles(roleInAppForUserList);
+                        RolesInAppForUser rolesInAppForUser = constructRolesInAppForUserUpdate(orgUserId, app.getId(),
+                            userRolesInRemoteApp);
+                        logger.info(EELFLoggerDelegate.debugLogger,
+                            "setExternalRequestUserAppRole: {} user app roles: for app {}, user {}",
+                            logMessage, newAppRolesForUser.getApplicationName(), newAppRolesForUser.getLoginId());
+                        Set<EcompRole> rolesGotDeletedByApprover = new TreeSet<>();
+                        result = applyChangesInUserRolesForAppToEcompDB(rolesInAppForUser, externalSystemRequest,
+                            reqType, false, rolesGotDeletedByApprover, false);
+                    }
+                    if (!result) {
+                        reqMessage = "Failed to save the user app role(s)";
+                    }
+                    if (epRequestIdSize > 0 && !userInfo.isEmpty()) {
+                        updateStatus = "C";
+                        applyChangesToAppRolesRequest(user.getId(), updateStatus, epRequestId.get(0));
                     }
                 }
+            } catch (Exception e) {
+                String message = String.format(
+                    "setExternalRequestUserAppRole: Failed to create user or update user roles for User %s, AppId %s",
+                    orgUserId, appName);
+                logger.error(EELFLoggerDelegate.errorLogger, message, e);
+                result = false;
+                reqMessage = e.getMessage();
+                if (epRequestIdSize > 0 && userInfo != null && !userInfo.isEmpty()) {
+                    updateStatus = "F";
+                    applyChangesToAppRolesRequest(user.getId(),
+                        updateStatus, epRequestId.get(0));
+                }
+            }
+        }
+        return new ExternalRequestFieldsValidator(result, reqMessage);
+    }
 
-                appsListWithAdminRole = new AppsListWithAdminRole();
-                appsListWithAdminRole.setOrgUserId(orgUserId);
-                List<FnApp> appsList = new ArrayList<>();
-                try {
-                    appsList = fnAppService.findAll();
-                } catch (Exception e) {
-                    logger.error(EELFLoggerDelegate.errorLogger, "getAppsWithAdminRoleStateForUser 2 failed", e);
-                    EPLogUtil.logEcompError(EPAppMessagesEnum.BeDaoSystemError);
+    private Set<EcompRole> postUsersRolesToLocalApp(List<RoleInAppForUser> roleInAppForUserList) {
+        return constructUsersEcompRoles(roleInAppForUserList);
+    }
+
+    private Set<EcompRole> constructUsersEcompRoles(List<RoleInAppForUser> roleInAppForUserList) {
+        Set<EcompRole> existingUserRoles = new TreeSet<>();
+        for (RoleInAppForUser roleInAppForUser : roleInAppForUserList) {
+            if (roleInAppForUser.getIsApplied()) {
+                EcompRole ecompRole = new EcompRole();
+                ecompRole.setId(roleInAppForUser.getRoleId());
+                ecompRole.setName(roleInAppForUser.getRoleName());
+                existingUserRoles.add(ecompRole);
+            }
+        }
+        return existingUserRoles;
+    }
+
+    private List<RoleInAppForUser> roleInAppForUserList(List<ExternalSystemRoleApproval> roleInAppForUserList,
+        Long appId, String appName) throws Exception {
+        List<RoleInAppForUser> existingUserRoles = new ArrayList<>();
+        List<FnRole> existingAppRole;
+        for (ExternalSystemRoleApproval roleInAppForUser : roleInAppForUserList) {
+            RoleInAppForUser ecompRole = new RoleInAppForUser();
+            existingAppRole = fnRoleService.retrieveAppRolesByRoleNameAndByAppId(roleInAppForUser.getRoleName(), appId);
+            if (existingAppRole.isEmpty()) {
+                logger.error(EELFLoggerDelegate.errorLogger, "roleInAppForUserList failed for the roles {}",
+                    roleInAppForUserList);
+                throw new Exception("'" + roleInAppForUser.getRoleName() + "'" + " role does not exist for " + appName
+                    + " application");
+            }
+            if (!existingAppRole.get(0).getActiveYn()) {
+                logger.error(EELFLoggerDelegate.errorLogger, "roleInAppForUserList failed for the roles {}",
+                    roleInAppForUserList);
+                throw new Exception(
+                    roleInAppForUser.getRoleName() + " role is unavailable for " + appName + " application");
+            } else {
+
+                List<FnRole> roleInfo = externalAccessRolesService
+                    .getPortalAppRoleInfo(PortalConstants.ACCOUNT_ADMIN_ROLE_ID);
+                FnRole adminRole = new FnRole();
+                if (roleInfo.size() > 0) {
+                    adminRole = roleInfo.get(0);
+                    logger.debug(EELFLoggerDelegate.debugLogger, "Admin RoleName form DB: " + adminRole.getRoleName());
                 }
-                for (FnApp app : appsList) {
-                    AppNameIdIsAdmin appNameIdIsAdmin = new AppNameIdIsAdmin();
-                    appNameIdIsAdmin.setId(app.getId());
-                    appNameIdIsAdmin.setAppName(app.getAppName());
-                    appNameIdIsAdmin.setIsAdmin(appsUserAdmin.containsKey(app.getId()));
-                    appNameIdIsAdmin.setRestrictedApp(app.isRestrictedApp());
-                    appsListWithAdminRole.getAppsRoles().add(appNameIdIsAdmin);
+                ecompRole.setRoleId(
+                    (appId == 1 || roleInAppForUser.getRoleName().equals(adminRole.getRoleName())) ? existingAppRole
+                        .get(0)
+                        .getId() : existingAppRole.get(0).getAppRoleId());
+                ecompRole.setRoleName(roleInAppForUser.getRoleName());
+                ecompRole.setIsApplied(true);
+                existingUserRoles.add(ecompRole);
+            }
+        }
+        return existingUserRoles;
+    }
+
+    private void validateExternalRequestFields(FnApp app) throws Exception {
+        if (app == null) {
+            throw new Exception("Application does not exist");
+        } else if (!app.getEnabled() && !app.getId().equals(PortalConstants.PORTAL_APP_ID)) {
+            throw new Exception(app.getMlAppName() + " application is unavailable");
+        }
+    }
+
+    private String validateNewUser(String orgUserId, FnApp app) throws Exception {
+        FnUser epUser = fnUserService.getUserWithOrgUserId(orgUserId).get(0);
+        if (epUser == null) {
+            throw new Exception("User does not exist");
+        } else if (!epUser.getOrgUserId().equals(orgUserId)) {
+            throw new Exception("User does not exist");
+        } else if (app == null) {
+            throw new Exception("Application does not exist");
+        }
+        return "Saved Successfully";
+    }
+
+    private void applyChangesToAppRolesRequest(final Long userId, final String updateStatus,
+        final EpUserRolesRequest epUserAppRolesRequest) {
+        try {
+            epUserAppRolesRequest.setUpdatedDate(LocalDateTime.now());
+            epUserAppRolesRequest.setRequestStatus(updateStatus);
+            epUserAppRolesRequest.setUserId(fnUserService.getUser(userId).get());
+            epUserRolesRequestService.saveOne(epUserAppRolesRequest);
+            List<EpUserRolesRequestDet> epUserAppRolessDetailList = epUserRolesRequestDetService
+                .appRolesRequestDetailList(epUserAppRolesRequest.getReqId());
+            if (epUserAppRolessDetailList.size() > 0) {
+                for (EpUserRolesRequestDet epRequestUpdateData : epUserAppRolessDetailList) {
+                    epRequestUpdateData.setRequestType(updateStatus);
+                    epRequestUpdateData.setReqId(epUserAppRolesRequest);
+                    epRequestUpdateData.setReqId(epUserAppRolesRequest);
+                    epUserRolesRequestDetService.saveOne(epRequestUpdateData);
                 }
-            } catch (Exception e) {
-                logger.error(EELFLoggerDelegate.errorLogger, "getAppsWithAdminRoleStateForUser 3 failed", e);
             }
-            return appsListWithAdminRole;
+            logger.debug(EELFLoggerDelegate.debugLogger, "The request is set to complete");
+        } catch (Exception e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "applyChangesToAppRolesRequest failed", e);
         }
+    }
 }
diff --git a/portal-BE/src/main/java/org/onap/portal/service/ExternalAccessRolesService.java b/portal-BE/src/main/java/org/onap/portal/service/ExternalAccessRolesService.java
index 1fa6203d..4bfce266 100644
--- a/portal-BE/src/main/java/org/onap/portal/service/ExternalAccessRolesService.java
+++ b/portal-BE/src/main/java/org/onap/portal/service/ExternalAccessRolesService.java
@@ -72,7 +72,9 @@ import org.onap.portal.domain.db.fn.FnRoleFunction;
 import org.onap.portal.domain.db.fn.FnUser;
 import org.onap.portal.domain.db.fn.FnUserRole;
 import org.onap.portal.domain.dto.ecomp.EPAppRoleFunction;
+import org.onap.portal.domain.dto.ecomp.EPUserAppRolesRequest;
 import org.onap.portal.domain.dto.ecomp.ExternalRoleDetails;
+import org.onap.portal.domain.dto.model.ExternalSystemUser;
 import org.onap.portal.domain.dto.transport.BulkUploadRoleFunction;
 import org.onap.portal.domain.dto.transport.BulkUploadUserRoles;
 import org.onap.portal.domain.dto.transport.CentralApp;
@@ -3223,5 +3225,4 @@ public class ExternalAccessRolesService {
         }
         return roleDescUpdated;
     }
-
 }
diff --git a/portal-BE/src/main/java/org/onap/portal/service/app/FnAppDao.java b/portal-BE/src/main/java/org/onap/portal/service/app/FnAppDao.java
index f57cc246..2313ce18 100644
--- a/portal-BE/src/main/java/org/onap/portal/service/app/FnAppDao.java
+++ b/portal-BE/src/main/java/org/onap/portal/service/app/FnAppDao.java
@@ -1,6 +1,7 @@
 package org.onap.portal.service.app;
 
 import java.util.List;
+import java.util.Optional;
 import org.onap.portal.domain.db.fn.FnApp;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
@@ -12,10 +13,12 @@ import org.springframework.transaction.annotation.Transactional;
 @Transactional
 interface FnAppDao extends JpaRepository<FnApp, Long> {
 
-  @Query
-  List<FnApp> getByUebKey(final @Param("uebKey") String uebKey);
+    @Query
+    List<FnApp> getByUebKey(final @Param("uebKey") String uebKey);
 
-  @Query
-  List<FnApp> getCentralizedApps();
+    @Query
+    List<FnApp> getCentralizedApps();
 
+    @Query
+    Optional<List<FnApp>> retrieveWhereAppName(final @Param("appName") String appName);
 }
diff --git a/portal-BE/src/main/java/org/onap/portal/service/app/FnAppService.java b/portal-BE/src/main/java/org/onap/portal/service/app/FnAppService.java
index 1a7c2fa5..98cb0fa7 100644
--- a/portal-BE/src/main/java/org/onap/portal/service/app/FnAppService.java
+++ b/portal-BE/src/main/java/org/onap/portal/service/app/FnAppService.java
@@ -142,4 +142,13 @@ public class FnAppService {
   public List<FnApp> findAll() {
     return Optional.of(fnAppDao.findAll()).orElse(new ArrayList<>());
   }
+
+  public FnApp getAppDetail(final String appName) {
+    List<FnApp> fnApps = fnAppDao.retrieveWhereAppName(appName).orElse(new ArrayList<>());
+    if (!fnApps.isEmpty()) {
+      return fnApps.get(0);
+    } else {
+      throw new EntityExistsException("No FnApp where appName equals " + appName);
+    }
+  }
 }
diff --git a/portal-BE/src/main/java/org/onap/portal/service/userRolesRequestDet/EpUserRolesRequestDetService.java b/portal-BE/src/main/java/org/onap/portal/service/userRolesRequestDet/EpUserRolesRequestDetService.java
index f8641f06..57a6c9f1 100644
--- a/portal-BE/src/main/java/org/onap/portal/service/userRolesRequestDet/EpUserRolesRequestDetService.java
+++ b/portal-BE/src/main/java/org/onap/portal/service/userRolesRequestDet/EpUserRolesRequestDetService.java
@@ -51,18 +51,19 @@ import org.springframework.transaction.annotation.Transactional;
 @Service
 @Transactional
 public class EpUserRolesRequestDetService {
-       private final EpUserRolesRequestDetDao epUserRolesRequestDetDao;
 
-       @Autowired
-       public EpUserRolesRequestDetService(EpUserRolesRequestDetDao epUserRolesRequestDetDao) {
-              this.epUserRolesRequestDetDao = epUserRolesRequestDetDao;
-       }
+    private final EpUserRolesRequestDetDao epUserRolesRequestDetDao;
 
-       public EpUserRolesRequestDet saveOne(EpUserRolesRequestDet epUserRolesRequestDet){
-              return epUserRolesRequestDetDao.save(epUserRolesRequestDet);
-       }
+    @Autowired
+    public EpUserRolesRequestDetService(EpUserRolesRequestDetDao epUserRolesRequestDetDao) {
+        this.epUserRolesRequestDetDao = epUserRolesRequestDetDao;
+    }
 
-       public List<EpUserRolesRequestDet> appRolesRequestDetailList(final Long reqId){
-              return Optional.of(epUserRolesRequestDetDao.appRolesRequestDetailList(reqId)).orElse(new ArrayList<>());
-       }
+    public EpUserRolesRequestDet saveOne(EpUserRolesRequestDet epUserRolesRequestDet) {
+        return epUserRolesRequestDetDao.save(epUserRolesRequestDet);
+    }
+
+    public List<EpUserRolesRequestDet> appRolesRequestDetailList(final Long reqId) {
+        return Optional.of(epUserRolesRequestDetDao.appRolesRequestDetailList(reqId)).orElse(new ArrayList<>());
+    }
 }