D-Net

import {Component, Input, Output, EventEmitter, ViewChild, ElementRef} from '@angular/core';

import {Observable}       from 'rxjs/Observable';

import {ActivatedRoute, Router} from '@angular/router';

import {Title, Meta}                  from '@angular/platform-browser';

@Component({

    selector: 'content',

    templateUrl: './contentPage.component.html'

})

export class ContentPageComponent {

  constructor ( private  route: ActivatedRoute, private _router: Router,

                private _meta: Meta, private _title: Title) {}

  public ngOnInit() {

     this.updateTitle("Content");

     this.updateDescription("content, open access");

  }

  private updateDescription(description:string){

    this._meta.updateTag({content:description},"name='description'");

    this._meta.updateTag({content:description},"property='og:description'");

  }

  private updateTitle(title:string){

    var _prefix ="OpenAIRE | ";

    var _title = _prefix + ((title.length> 50 ) ?title.substring(0,50):title);

    this._title.setTitle(_title);

    this._meta.updateTag({content:_title},"property='og:title'");

  }

  private updateUrl(url:string){

    this._meta.updateTag({content:url},"property='og:url'");

  }

}