backendless/es/cache/index.js

Backendless JavaScript SDK for Node.js and the browser

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _utils = _interopRequireDefault(require("../utils"));
var Cache = /*#__PURE__*/function () {
  function Cache(app) {
    (0, _classCallCheck2["default"])(this, Cache);
    this.app = app;
    this.parsers = {};
  }
  (0, _createClass2["default"])(Cache, [{
    key: "setObjectFactory",
    value: function setObjectFactory(objectName, factoryMethod) {
      this.parsers[objectName] = factoryMethod;
    }
  }, {
    key: "parseItem",
    value: function parseItem(item) {
      var className = item && item.___class;
      if (className) {
        var Class = this.parsers[className];
        if (Class) {
          item = new Class(item);
        }
      }
      return item;
    }
  }, {
    key: "stringifyItem",
    value: function stringifyItem(item) {
      if (_utils["default"].isCustomClassInstance(item)) {
        item.___class = item.___class || _utils["default"].getClassName(item);
      }
      return JSON.stringify(item);
    }
  }, {
    key: "put",
    value: function () {
      var _put = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee(key, value, timeToLive) {
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) switch (_context.prev = _context.next) {
            case 0:
              if (!(!key || typeof key !== 'string')) {
                _context.next = 2;
                break;
              }
              throw new Error('Cache Key must be provided and must be a string.');
            case 2:
              if (!(timeToLive && (typeof timeToLive !== 'number' || timeToLive < 0))) {
                _context.next = 4;
                break;
              }
              throw new Error('Cache TimeToLive must be a positive number.');
            case 4:
              return _context.abrupt("return", this.app.request.put({
                url: this.app.urls.cacheItem(key),
                query: {
                  timeout: timeToLive
                },
                headers: {
                  'Content-Type': 'application/json'
                },
                data: this.stringifyItem(value)
              }));
            case 5:
            case "end":
              return _context.stop();
          }
        }, _callee, this);
      }));
      function put(_x, _x2, _x3) {
        return _put.apply(this, arguments);
      }
      return put;
    }()
  }, {
    key: "get",
    value: function () {
      var _get = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee2(key) {
        var _this = this;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) switch (_context2.prev = _context2.next) {
            case 0:
              if (!(!key || typeof key !== 'string')) {
                _context2.next = 2;
                break;
              }
              throw new Error('Cache Key must be provided and must be a string.');
            case 2:
              return _context2.abrupt("return", this.app.request.get({
                url: this.app.urls.cacheItem(key)
              }).then(function (item) {
                return _this.parseItem(item);
              }));
            case 3:
            case "end":
              return _context2.stop();
          }
        }, _callee2, this);
      }));
      function get(_x4) {
        return _get.apply(this, arguments);
      }
      return get;
    }()
  }, {
    key: "remove",
    value: function () {
      var _remove = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee3(key) {
        return _regenerator["default"].wrap(function _callee3$(_context3) {
          while (1) switch (_context3.prev = _context3.next) {
            case 0:
              if (!(!key || typeof key !== 'string')) {
                _context3.next = 2;
                break;
              }
              throw new Error('Cache Key must be provided and must be a string.');
            case 2:
              return _context3.abrupt("return", this.app.request["delete"]({
                url: this.app.urls.cacheItem(key)
              }));
            case 3:
            case "end":
              return _context3.stop();
          }
        }, _callee3, this);
      }));
      function remove(_x5) {
        return _remove.apply(this, arguments);
      }
      return remove;
    }()
  }, {
    key: "contains",
    value: function () {
      var _contains = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee4(key) {
        return _regenerator["default"].wrap(function _callee4$(_context4) {
          while (1) switch (_context4.prev = _context4.next) {
            case 0:
              if (!(!key || typeof key !== 'string')) {
                _context4.next = 2;
                break;
              }
              throw new Error('Cache Key must be provided and must be a string.');
            case 2:
              return _context4.abrupt("return", this.app.request.get({
                url: this.app.urls.cacheItemCheck(key)
              }));
            case 3:
            case "end":
              return _context4.stop();
          }
        }, _callee4, this);
      }));
      function contains(_x6) {
        return _contains.apply(this, arguments);
      }
      return contains;
    }()
  }, {
    key: "expireIn",
    value: function () {
      var _expireIn = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee5(key, seconds) {
        return _regenerator["default"].wrap(function _callee5$(_context5) {
          while (1) switch (_context5.prev = _context5.next) {
            case 0:
              if (!(!key || typeof key !== 'string')) {
                _context5.next = 2;
                break;
              }
              throw new Error('Cache Key must be provided and must be a string.');
            case 2:
              if (!(typeof seconds !== 'number' || seconds <= 0)) {
                _context5.next = 4;
                break;
              }
              throw new Error('Cache Expiration must be provided and must be a number of seconds.');
            case 4:
              return _context5.abrupt("return", this.app.request.put({
                url: this.app.urls.cacheItemExpireIn(key),
                query: {
                  timeout: seconds
                },
                data: {}
              }));
            case 5:
            case "end":
              return _context5.stop();
          }
        }, _callee5, this);
      }));
      function expireIn(_x7, _x8) {
        return _expireIn.apply(this, arguments);
      }
      return expireIn;
    }()
  }, {
    key: "expireAt",
    value: function () {
      var _expireAt = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee6(key, timestamp) {
        return _regenerator["default"].wrap(function _callee6$(_context6) {
          while (1) switch (_context6.prev = _context6.next) {
            case 0:
              if (!(!key || typeof key !== 'string')) {
                _context6.next = 2;
                break;
              }
              throw new Error('Cache Key must be provided and must be a string.');
            case 2:
              if (!(timestamp instanceof Date)) {
                _context6.next = 6;
                break;
              }
              timestamp = timestamp.getTime();
              _context6.next = 8;
              break;
            case 6:
              if (!(typeof timestamp !== 'number' || timestamp <= 0)) {
                _context6.next = 8;
                break;
              }
              throw new Error('Cache Expiration must be provided and must be a timestamp or an instance of Date.');
            case 8:
              return _context6.abrupt("return", this.app.request.put({
                url: this.app.urls.cacheItemExpireAt(key),
                query: {
                  timestamp: timestamp
                },
                data: {}
              }));
            case 9:
            case "end":
              return _context6.stop();
          }
        }, _callee6, this);
      }));
      function expireAt(_x9, _x10) {
        return _expireAt.apply(this, arguments);
      }
      return expireAt;
    }()
  }]);
  return Cache;
}();
exports["default"] = Cache;