From 7737db5778b442c14ea0bcf8ae10fea9eb79f019 Mon Sep 17 00:00:00 2001
From: "k.triantafyllou" <k.triantafyllou@d315682c-612b-4755-9ff5-7f18f6832af3>
Date: Mon, 23 Dec 2019 10:18:57 +0000
Subject: [PATCH] [Library | Trunk]: User Management service: Add a lock to
 allow only one call for get user info.

git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/app@57933 d315682c-612b-4755-9ff5-7f18f6832af3
---
 services/user-management.service.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/services/user-management.service.ts b/services/user-management.service.ts
index 6def7a5b..807b1743 100644
--- a/services/user-management.service.ts
+++ b/services/user-management.service.ts
@@ -11,6 +11,7 @@ import {NavigationEnd, Router} from "@angular/router";
 export class UserManagementService {
   
   private getUserInfoSubject: BehaviorSubject<User> = new BehaviorSubject<User>(null);
+  private lock: boolean = false;
   
   constructor(private http: HttpClient,
               private router: Router) {
@@ -29,7 +30,8 @@ export class UserManagementService {
     if (!token) {
       this.getUserInfoSubject.next(null);
     } else {
-      if (this.getUserInfoSubject.getValue() === null) {
+      if (this.getUserInfoSubject.getValue() === null && !this.lock) {
+        this.lock = true;
         this.http.get<User>(url + token).pipe(map(userInfo => {
           return this.parseUserInfo(userInfo);
         })).pipe(timeout(2000), catchError(() => {
@@ -37,6 +39,7 @@ export class UserManagementService {
         })).subscribe(user => {
           if (this.getUserInfoSubject.getValue() === null) {
             this.getUserInfoSubject.next(user);
+            this.lock = false;
           }
         });
       }