src/app/app.component.ts

import { Component, OnInit } from '@angular/core';
import { Router } from '@angular/router';
import { Http } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/catch';
import 'rxjs/add/operator/map';
import 'rxjs/add/observable/throw';
import { SessionContext } from './common/session-context';
import { OAuthService } from 'angular-oauth2-oidc';
import { Globals } from './common/globals';
import { BaseDataLoaderService } from './services/jobs/base-data-loader.service';
import { ReminderCallerJobService } from './services/jobs/reminder-caller-job.service';
import { ImportFileCallerService } from './services/jobs/import-file-caller.service';
import { HttpResponseInterceptorService } from './services/http-response-interceptor.service';

import { BannerMessage } from './common/banner-message';
import { BannerMessageStatusEn } from './common/enums';
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})

export class AppComponent implements OnInit {
  title = 'app works!';
  private bannerMessageStatus = BannerMessageStatusEn;

  constructor(private http: Http, public router: Router,
    public baseDataLoader: BaseDataLoaderService,
    public httpInterceptor: HttpResponseInterceptorService,
    private sessionContext: SessionContext,
    public reminderCallerJobService: ReminderCallerJobService,
    public importFileCallerService: ImportFileCallerService) {

      this.http.get('assets/settings.json')
      .subscribe(res => this.sessionContext.settings = res.json());

      this.sessionContext.centralHttpResultCode$.subscribe(rc => {
        this.onRcFromHttpService(rc);
      });

  }

  ngOnInit() {
  /*
    const self = this;
    window.onload = function () {
      if (!self.sessionContext.getCurrUser()) {
        self.router.navigate(['login']);
      }

      return '';
    };
*/  }

  private onRcFromHttpService(rc: number): void {
    if (rc === 401) {
      this.router.navigate(['/login']);
    }

  }

  componentAdded() {

  }
}