metrics-8.js

import Ember from 'ember';

export default Ember.Service.extend({
  _adapters: {},

  init() {
    const adapters = Ember.getWithDefault(this, 'metricsAdapters', Ember.A([]));
    this._super(...arguments);
    this.activateAdapters(adapters);
  },

  activateAdapters(adapterOptions = []) {
    const cachedAdapters = Ember.get(this, '_adapters');
    const activatedAdapters = {};

    adapterOptions.forEach((adapterOption) => {
      const { name } = adapterOption;
      let adapter;

      if (cachedAdapters[name]) {
        Ember.warn(`[ember-metrics] Metrics adapter ${name} has already been activated.`);
        adapter = cachedAdapters[name];
      } else {
        adapter = this._activateAdapter(adapterOption);
      }

      Ember.set(activatedAdapters, name, adapter);
    });

    return Ember.set(this, '_adapters', activatedAdapters);
  }
});