text: // Copyright (c) 2015 Uber Technologies, Inc.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  'use strict';
  
  module.exports = SessionCreateReplyMessage;
  
  var AbstractNetworkMessage = require('./abstract_network_message');
  var Errors = require('../errors');
  var util = require('util');
  
  function SessionCreateReplyMessage(options) {
      options = options || {};
      AbstractNetworkMessage.call(this, options);
  
      if (typeof options.sessionToken === 'string') {
          this.sessionToken = options.sessionToken;
          this.error = null;
      } else if (options.error instanceof Error) {
          this.sessionToken = null;
          this.error = options.error;
      } else {
          throw new Error('Requires sessionToken or error');
      }
  }
  
  util.inherits(SessionCreateReplyMessage, AbstractNetworkMessage);
  
  SessionCreateReplyMessage.type = 'SessionCreateReply';
  
  SessionCreateReplyMessage.parseAsJSON = function(json, callback) {
      if (!json || json.type !== this.type) {
          return callback(new Error('Message type was not \'' + this.type + '\''));
      }
  
      var message;
      try {
          message = new SessionCreateReplyMessage(json);
      } catch (err) {
          return callback(err);
      }
      
      callback(null, message);
  };
  
  SessionCreateReplyMessage.prototype.toJSON = function() {
      var json = AbstractNetworkMessage.prototype.toJSON.call(this);
      if (this.sessionToken) {
          json.sessionToken = this.sessionToken;
      }
      if (this.error) {
          json.error = Errors.jsonify(this.error);
      }
      return json;
  };
  