rename

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

ui/src/app/services/message/message.service.ts

@@ -0,0 +1,22 @@
+
+import { Injectable } from '@angular/core';
+import { MatSnackBar, MatSnackBarConfig } from '@angular/material/snack-bar';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class MessageService {
+
+  constructor(
+    private snackbar: MatSnackBar,
+    ) {
+  }
+
+  showMessage(message: string, action?: string, config?: MatSnackBarConfig) {
+    let cfg = config
+    if (!cfg) {
+      cfg = { duration: 2000 }
+    }
+    this.snackbar.open(message, action, cfg);
+  }
+}