hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/routes/yarn-app/components.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file 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.
 */

import Ember from 'ember';
import AbstractRoute from '../abstract';

export default AbstractRoute.extend({
  model(param, transition) {
    const { app_id } = this.paramsFor('yarn-app');
    const { service } = param;
    transition.send('updateBreadcrumbs', app_id, service, [{text: 'Components'}]);
    return Ember.RSVP.hash({
      appId: app_id,
      serviceName: service,
      components: this.store.query('yarn-service-component', {appId: app_id, type: 'COMPONENT'}).catch(function() {
        return [];
      }),
      instances: this.store.query('yarn-component-instance', {appId: app_id}).catch(function() {
        return [];
      })
    });
  },

  afterModel(model) {
    let instances = model.instances;
    model.components.forEach(function(component) {
      var num = instances.filterBy('component', component.get('name')).length;
      component.set('instances', num);
    });
  },

  refresh() {
    window.location.reload();
  },

  unloadAll() {
    this.store.unloadAll('yarn-service-component');
    this.store.unloadAll('yarn-component-instance');
  }
});