BAEL-3091: The Prototype Pattern in Java (changed code based on valid comments from a reader)

spring-security-angular/client/angular2/app/home/home.component.ts

@@ -0,0 +1,36 @@
+import { Component, OnInit } from '@angular/core';
+import { Http, RequestOptions, Headers } from '@angular/http';
+import 'rxjs/add/operator/map'
+
+@Component({
+    selector:'home',
+    templateUrl: './app/home/home.component.html'
+})
+
+export class HomeComponent implements OnInit {
+
+    userName: string;
+
+    constructor(private http: Http) { }
+
+    ngOnInit() {
+        let url = 'http://localhost:8082/user';
+        let headers = new Headers({
+            'Authorization': 'Basic ' + sessionStorage.getItem('token')
+        });
+        let options = new RequestOptions({ headers: headers });
+        this.http.post(url,{}, options).
+        map(res => res.json()).
+        subscribe(
+            principal => this.userName = principal.name,
+            error => {
+                if(error.status == 401)
+                    alert('Unauthorized');
+            }
+        );
+    }
+
+    logout() {
+        sessionStorage.setItem('token', '');
+    }
+}