kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
120 lines (119 loc) • 13.3 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getRequestThrottle = getRequestThrottle;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _utils = require("@kepler.gl/utils");
// SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
var RequestThrottle = /*#__PURE__*/function () {
function RequestThrottle() {
(0, _classCallCheck2["default"])(this, RequestThrottle);
(0, _defineProperty2["default"])(this, "serverQueues", void 0);
(0, _defineProperty2["default"])(this, "maxConcurrentRequests", void 0);
this.serverQueues = {};
this.maxConcurrentRequests = (0, _utils.getApplicationConfig)().rasterServerMaxPerServerRequests;
}
return (0, _createClass2["default"])(RequestThrottle, [{
key: "getServerQueue",
value: function getServerQueue(serverKey) {
if (!this.serverQueues[serverKey]) {
this.serverQueues[serverKey] = {
activeRequests: 0,
queue: []
};
}
return this.serverQueues[serverKey];
}
}, {
key: "getDebugInfo",
value: function getDebugInfo() {
var stats = Object.entries(this.serverQueues).map(function (_ref) {
var _ref2 = (0, _slicedToArray2["default"])(_ref, 2),
serverKey = _ref2[0],
queue = _ref2[1];
return "Server: ".concat(serverKey, "\n Active Requests: ").concat(queue.activeRequests, "\n Queued Requests: ").concat(queue.queue.length);
});
return stats.length > 0 ? "Request Throttle Stats:\n".concat(stats.join('\n')) : 'No active server queues';
}
}, {
key: "throttleRequest",
value: function () {
var _throttleRequest = (0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee2(serverKey, requestFunction) {
var serverQueue, nextRequest;
return _regenerator["default"].wrap(function _callee2$(_context2) {
while (1) switch (_context2.prev = _context2.next) {
case 0:
serverQueue = this.getServerQueue(serverKey);
if (!(serverQueue.activeRequests >= this.maxConcurrentRequests && Boolean(this.maxConcurrentRequests))) {
_context2.next = 4;
break;
}
_context2.next = 4;
return new Promise(function (resolve) {
serverQueue.queue.push( /*#__PURE__*/(0, _asyncToGenerator2["default"])( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
var result;
return _regenerator["default"].wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
_context.prev = 0;
_context.next = 3;
return requestFunction();
case 3:
result = _context.sent;
resolve();
return _context.abrupt("return", result);
case 8:
_context.prev = 8;
_context.t0 = _context["catch"](0);
resolve();
return _context.abrupt("return", null);
case 12:
case "end":
return _context.stop();
}
}, _callee, null, [[0, 8]]);
})));
});
case 4:
serverQueue.activeRequests++;
_context2.prev = 5;
_context2.next = 8;
return requestFunction();
case 8:
return _context2.abrupt("return", _context2.sent);
case 9:
_context2.prev = 9;
serverQueue.activeRequests--;
// Process next request in queue if any
nextRequest = serverQueue.queue.shift();
if (nextRequest) {
nextRequest();
}
return _context2.finish(9);
case 14:
case "end":
return _context2.stop();
}
}, _callee2, this, [[5,, 9, 14]]);
}));
function throttleRequest(_x, _x2) {
return _throttleRequest.apply(this, arguments);
}
return throttleRequest;
}()
}]);
}(); // Create a singleton instance
var requestThrottle = null;
function getRequestThrottle() {
if (!requestThrottle) requestThrottle = new RequestThrottle();
return requestThrottle;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_utils","require","RequestThrottle","_classCallCheck2","_defineProperty2","serverQueues","maxConcurrentRequests","getApplicationConfig","rasterServerMaxPerServerRequests","_createClass2","key","value","getServerQueue","serverKey","activeRequests","queue","getDebugInfo","stats","Object","entries","map","_ref","_ref2","_slicedToArray2","concat","length","join","_throttleRequest","_asyncToGenerator2","_regenerator","mark","_callee2","requestFunction","serverQueue","nextRequest","wrap","_callee2$","_context2","prev","next","Boolean","Promise","resolve","push","_callee","result","_callee$","_context","sent","abrupt","t0","stop","shift","finish","throttleRequest","_x","_x2","apply","arguments","requestThrottle","getRequestThrottle"],"sources":["../../src/raster-tile/request-throttle.ts"],"sourcesContent":["// SPDX-License-Identifier: MIT\n// Copyright contributors to the kepler.gl project\n\nimport {getApplicationConfig} from '@kepler.gl/utils';\n\ninterface RequestQueue {\n  activeRequests: number;\n  queue: Array<() => Promise<any>>;\n}\n\nclass RequestThrottle {\n  private serverQueues: Record<string, RequestQueue>;\n  private maxConcurrentRequests: number;\n\n  constructor() {\n    this.serverQueues = {};\n    this.maxConcurrentRequests = getApplicationConfig().rasterServerMaxPerServerRequests;\n  }\n\n  private getServerQueue(serverKey: string): RequestQueue {\n    if (!this.serverQueues[serverKey]) {\n      this.serverQueues[serverKey] = {\n        activeRequests: 0,\n        queue: []\n      };\n    }\n    return this.serverQueues[serverKey];\n  }\n\n  getDebugInfo(): string {\n    const stats = Object.entries(this.serverQueues).map(([serverKey, queue]) => {\n      return `Server: ${serverKey}\n  Active Requests: ${queue.activeRequests}\n  Queued Requests: ${queue.queue.length}`;\n    });\n\n    return stats.length > 0\n      ? `Request Throttle Stats:\\n${stats.join('\\n')}`\n      : 'No active server queues';\n  }\n\n  async throttleRequest<T>(serverKey: string, requestFunction: () => Promise<T>): Promise<T> {\n    const serverQueue = this.getServerQueue(serverKey);\n\n    if (\n      serverQueue.activeRequests >= this.maxConcurrentRequests &&\n      Boolean(this.maxConcurrentRequests)\n    ) {\n      // Wait for a slot to become available\n      await new Promise<void>(resolve => {\n        serverQueue.queue.push(async () => {\n          try {\n            const result = await requestFunction();\n            resolve();\n            return result;\n          } catch (error) {\n            resolve();\n            return null;\n          }\n        });\n      });\n    }\n\n    serverQueue.activeRequests++;\n    try {\n      return await requestFunction();\n    } finally {\n      serverQueue.activeRequests--;\n      // Process next request in queue if any\n      const nextRequest = serverQueue.queue.shift();\n      if (nextRequest) {\n        nextRequest();\n      }\n    }\n  }\n}\n\n// Create a singleton instance\nlet requestThrottle: RequestThrottle | null = null;\n\nexport function getRequestThrottle(): RequestThrottle {\n  if (!requestThrottle) requestThrottle = new RequestThrottle();\n  return requestThrottle;\n}\n"],"mappings":";;;;;;;;;;;;;AAGA,IAAAA,MAAA,GAAAC,OAAA;AAHA;AACA;AAAA,IASMC,eAAe;EAInB,SAAAA,gBAAA,EAAc;IAAA,IAAAC,gBAAA,mBAAAD,eAAA;IAAA,IAAAE,gBAAA;IAAA,IAAAA,gBAAA;IACZ,IAAI,CAACC,YAAY,GAAG,CAAC,CAAC;IACtB,IAAI,CAACC,qBAAqB,GAAG,IAAAC,2BAAoB,EAAC,CAAC,CAACC,gCAAgC;EACtF;EAAC,WAAAC,aAAA,aAAAP,eAAA;IAAAQ,GAAA;IAAAC,KAAA,EAED,SAAQC,cAAcA,CAACC,SAAiB,EAAgB;MACtD,IAAI,CAAC,IAAI,CAACR,YAAY,CAACQ,SAAS,CAAC,EAAE;QACjC,IAAI,CAACR,YAAY,CAACQ,SAAS,CAAC,GAAG;UAC7BC,cAAc,EAAE,CAAC;UACjBC,KAAK,EAAE;QACT,CAAC;MACH;MACA,OAAO,IAAI,CAACV,YAAY,CAACQ,SAAS,CAAC;IACrC;EAAC;IAAAH,GAAA;IAAAC,KAAA,EAED,SAAAK,YAAYA,CAAA,EAAW;MACrB,IAAMC,KAAK,GAAGC,MAAM,CAACC,OAAO,CAAC,IAAI,CAACd,YAAY,CAAC,CAACe,GAAG,CAAC,UAAAC,IAAA,EAAwB;QAAA,IAAAC,KAAA,OAAAC,eAAA,aAAAF,IAAA;UAAtBR,SAAS,GAAAS,KAAA;UAAEP,KAAK,GAAAO,KAAA;QACpE,kBAAAE,MAAA,CAAkBX,SAAS,2BAAAW,MAAA,CACZT,KAAK,CAACD,cAAc,2BAAAU,MAAA,CACpBT,KAAK,CAACA,KAAK,CAACU,MAAM;MACnC,CAAC,CAAC;MAEF,OAAOR,KAAK,CAACQ,MAAM,GAAG,CAAC,+BAAAD,MAAA,CACSP,KAAK,CAACS,IAAI,CAAC,IAAI,CAAC,IAC5C,yBAAyB;IAC/B;EAAC;IAAAhB,GAAA;IAAAC,KAAA;MAAA,IAAAgB,gBAAA,OAAAC,kBAAA,2BAAAC,YAAA,YAAAC,IAAA,CAED,SAAAC,SAAyBlB,SAAiB,EAAEmB,eAAiC;QAAA,IAAAC,WAAA,EAAAC,WAAA;QAAA,OAAAL,YAAA,YAAAM,IAAA,UAAAC,UAAAC,SAAA;UAAA,kBAAAA,SAAA,CAAAC,IAAA,GAAAD,SAAA,CAAAE,IAAA;YAAA;cACrEN,WAAW,GAAG,IAAI,CAACrB,cAAc,CAACC,SAAS,CAAC;cAAA,MAGhDoB,WAAW,CAACnB,cAAc,IAAI,IAAI,CAACR,qBAAqB,IACxDkC,OAAO,CAAC,IAAI,CAAClC,qBAAqB,CAAC;gBAAA+B,SAAA,CAAAE,IAAA;gBAAA;cAAA;cAAAF,SAAA,CAAAE,IAAA;cAAA,OAG7B,IAAIE,OAAO,CAAO,UAAAC,OAAO,EAAI;gBACjCT,WAAW,CAAClB,KAAK,CAAC4B,IAAI,mBAAAf,kBAAA,2BAAAC,YAAA,YAAAC,IAAA,CAAC,SAAAc,QAAA;kBAAA,IAAAC,MAAA;kBAAA,OAAAhB,YAAA,YAAAM,IAAA,UAAAW,SAAAC,QAAA;oBAAA,kBAAAA,QAAA,CAAAT,IAAA,GAAAS,QAAA,CAAAR,IAAA;sBAAA;wBAAAQ,QAAA,CAAAT,IAAA;wBAAAS,QAAA,CAAAR,IAAA;wBAAA,OAEEP,eAAe,CAAC,CAAC;sBAAA;wBAAhCa,MAAM,GAAAE,QAAA,CAAAC,IAAA;wBACZN,OAAO,CAAC,CAAC;wBAAC,OAAAK,QAAA,CAAAE,MAAA,WACHJ,MAAM;sBAAA;wBAAAE,QAAA,CAAAT,IAAA;wBAAAS,QAAA,CAAAG,EAAA,GAAAH,QAAA;wBAEbL,OAAO,CAAC,CAAC;wBAAC,OAAAK,QAAA,CAAAE,MAAA,WACH,IAAI;sBAAA;sBAAA;wBAAA,OAAAF,QAAA,CAAAI,IAAA;oBAAA;kBAAA,GAAAP,OAAA;gBAAA,CAEd,GAAC;cACJ,CAAC,CAAC;YAAA;cAGJX,WAAW,CAACnB,cAAc,EAAE;cAACuB,SAAA,CAAAC,IAAA;cAAAD,SAAA,CAAAE,IAAA;cAAA,OAEdP,eAAe,CAAC,CAAC;YAAA;cAAA,OAAAK,SAAA,CAAAY,MAAA,WAAAZ,SAAA,CAAAW,IAAA;YAAA;cAAAX,SAAA,CAAAC,IAAA;cAE9BL,WAAW,CAACnB,cAAc,EAAE;cAC5B;cACMoB,WAAW,GAAGD,WAAW,CAAClB,KAAK,CAACqC,KAAK,CAAC,CAAC;cAC7C,IAAIlB,WAAW,EAAE;gBACfA,WAAW,CAAC,CAAC;cACf;cAAC,OAAAG,SAAA,CAAAgB,MAAA;YAAA;YAAA;cAAA,OAAAhB,SAAA,CAAAc,IAAA;UAAA;QAAA,GAAApB,QAAA;MAAA,CAEJ;MAAA,SAjCKuB,eAAeA,CAAAC,EAAA,EAAAC,GAAA;QAAA,OAAA7B,gBAAA,CAAA8B,KAAA,OAAAC,SAAA;MAAA;MAAA,OAAfJ,eAAe;IAAA;EAAA;AAAA,KAoCvB;AACA,IAAIK,eAAuC,GAAG,IAAI;AAE3C,SAASC,kBAAkBA,CAAA,EAAoB;EACpD,IAAI,CAACD,eAAe,EAAEA,eAAe,GAAG,IAAIzD,eAAe,CAAC,CAAC;EAC7D,OAAOyD,eAAe;AACxB","ignoreList":[]}