1 files changed, 77 insertions, 0 deletions
diff --git a/cds-ui/client/src/app/common/shared/components/notification/notification.service.ts b/cds-ui/client/src/app/common/shared/components/notification/notification.service.ts
new file mode 100644
index 000000000..83c0504ac
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+++ b/cds-ui/client/src/app/common/shared/components/notification/notification.service.ts
@@ -0,0 +1,77 @@
+/*
+============LICENSE_START==========================================
+===================================================================
+Copyright (C) 2019 IBM 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.
+============LICENSE_END============================================
+*/
+
+import { Injectable } from '@angular/core';
+import { Router, NavigationStart } from '@angular/router';
+import { Observable, Subject } from 'rxjs';
+// import { Subject } from 'rxjs/Subject';
+
+import { Notification, NotificationType} from './notification';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class NotificationService {
+
+  private subject = new Subject<Notification>();
+  private keepAfterRouteChange = false;
+
+  constructor(private router: Router) {
+      router.events.subscribe(event => {
+          if (event instanceof NavigationStart) {
+              if (this.keepAfterRouteChange) {
+                  this.keepAfterRouteChange = false;
+              } else {
+                  this.clear();
+              }
+          }
+      });
+  }
+
+  getAlert(alertId?: string): Observable<any> {
+      return this.subject.asObservable();
+  }
+
+  success(message: string) {
+      this.alert(new Notification({ message, type: NotificationType.Success }));
+  }
+
+  error(message: string) {
+      this.alert(new Notification({ message, type: NotificationType.Error }));
+  }
+
+  info(message: string) {
+      this.alert(new Notification({ message, type: NotificationType.Info }));
+  }
+
+  warn(message: string) {
+      this.alert(new Notification({ message, type: NotificationType.Warning }));
+  }
+
+  alert(alert: Notification) {
+      this.keepAfterRouteChange = alert.keepAfterRouteChange;
+      this.subject.next(alert);
+  }
+
+  clear(alertId?: string) {
+      this.subject.next(new Notification({ alertId }));
+  }
+}