ambari/ambari-web/app/mappers/service_config_version_mapper.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.
 */

var App = require('app');

App.serviceConfigVersionsMapper = App.QuickDataMapper.create({
  model: App.ServiceConfigVersion,
  config: {
    service_name: 'service_name',
    service_id: 'service_name',
    version: "service_config_version",
    create_time: 'createtime',
    group_id: 'group_id',
    group_name: 'group_name',
    hosts: 'hosts',
    author: 'user',
    notes: 'service_config_version_note',
    is_current: 'is_current',
    index: 'index'
  },
  map: function (json) {
    var result = [];
    var itemIds = {};
    var serviceToHostMap = {};

    if (json && json.items) {
      json.items.forEach(function (item, index) {
        var parsedItem = this.parseIt(item, this.get('config'));
        parsedItem.id = parsedItem.service_name + '_' + parsedItem.version;
        parsedItem.is_requested = true;
        itemIds[parsedItem.id] = true;
        parsedItem.index = index;
        if (serviceToHostMap[item.service_name]) {
          serviceToHostMap[item.service_name] = serviceToHostMap[item.service_name].concat(item.hosts);
        } else {
          serviceToHostMap[item.service_name] = item.hosts;
        }
        result.push(parsedItem);
      }, this);

      this.get('model').find().forEach(function (item) {
        if (!itemIds[item.get('id')]) {
          item.set('isRequested', false);
        }
      });
      var itemTotal = parseInt(json.itemTotal);
      if (!isNaN(itemTotal)) {
        App.router.set('mainConfigHistoryController.filteredCount', itemTotal);
      }
      /**
       * this code sets hostNames for default confg group
       * by excluding hostNames that belongs to not default groups
       * from list of all hosts
       */
      Object.keys(serviceToHostMap).forEach(function(sName) {
        var defaultHostNames = App.get('allHostNames');
        for (var i = 0; i < serviceToHostMap[sName].length; i++) {
          defaultHostNames = defaultHostNames.without(serviceToHostMap[sName][i]);
        }
        var defVer = result.find(function(v) {
          return v.is_current && v.group_id == -1 && v.service_name == sName;
        });
        if (defVer) {
          defVer.hosts = defaultHostNames;
        }
      });
      App.store.commit();
      App.store.loadMany(this.get('model'), result);
    }
  }
});