skyquake/framework/core/modules/api/configuration.js

   1 /*
   2  *
   3  *   Copyright 2016 RIFT.IO Inc
   4  *
   5  *   Licensed under the Apache License, Version 2.0 (the "License");
   6  *   you may not use this file except in compliance with the License.
   7  *   You may obtain a copy of the License at
   8  *
   9  *       http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *   Unless required by applicable law or agreed to in writing, software
  12  *   distributed under the License is distributed on an "AS IS" BASIS,
  13  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *   See the License for the specific language governing permissions and
  15  *   limitations under the License.
  16  *
  17  */
  18
  19 /**
  20  * Configuration api module. Provides API functions to configure node
  21  * @module framework/core/modules/api/configuration
  22  * @author Kiran Kashalkar <kiran.kashalkar@riftio.com>
  23  */
  24
  25 var Promise = require('bluebird');
  26 var constants = require('../../api_utils/constants');
  27 var utils = require('../../api_utils/utils');
  28 var request = utils.request;
  29 var configurationAPI = {};
  30 var _ = require('lodash');
  31 var GLOBAL_CONFIGURATION = {
  32     api_server: 'localhost',
  33     ssl_enabled: true
  34 };
  35
  36 /**
  37  * Get the server configuration for the Express API
  38  * @param {Object} req - the Express request object
  39  * @return {Function} Promise that resolves with success object or rejects
  40  *                                        with error
  41  */
  42 configurationAPI.get = function(req) {
  43         return new Promise(function(resolve, reject) {
  44         resolve({
  45             statusCode: constants.HTTP_RESPONSE_CODES.SUCCESS.OK,
  46             data: GLOBAL_CONFIGURATION
  47         });
  48     });
  49 };
  50
  51 /**
  52  * Update the server configuration for the Express API
  53  * @param {Object} req - the Express request object
  54  * @return {Function} Promise that resolves with success object or rejects
  55  *                    with error
  56  */
  57 configurationAPI.update = function(req) {
  58     var newConfiguration = req.body;
  59     return new Promise(function(resolve, reject) {
  60         try {
  61             _.merge(GLOBAL_CONFIGURATION, newConfiguration);
  62             resolve({
  63                 statusCode: constants.HTTP_RESPONSE_CODES.SUCCESS.NO_CONTENT,
  64                 data: {}
  65             })
  66         } catch (e) {
  67             console.log('Merging on new configuration failed. Error:', e);
  68             reject({
  69                 statusCode: constants.HTTP_RESPONSE_CODES.ERROR.INTERNAL_SERVER_ERROR,
  70                 errorMessage: {
  71                     error: 'Problem with merging new configuration. Error: ' + JSON.stringify(e)
  72                 }
  73             });
  74         }
  75     });
  76 };
  77
  78 configurationAPI.globalConfiguration = {};
  79 /**
  80  * Internally used (by Node.js components) to update server configuration
  81  * @param {Object} data - the configuration to merge
  82  */
  83 configurationAPI.globalConfiguration.update = function(data) {
  84     _.merge(GLOBAL_CONFIGURATION, data);
  85 };
  86
  87 /**
  88  * Internally used (by Node.js components) to get server configuration
  89  * @param {Object} data - the configuration to merge
  90  */
  91 configurationAPI.globalConfiguration.get = function() {
  92     return GLOBAL_CONFIGURATION;
  93 };
  94
  95 module.exports = configurationAPI;