@grafana/faro-web-sdk
Version:
Faro instrumentations, metas, transports for web.
140 lines • 5.91 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.ActivityWindowTracker = void 0;
exports.isRequestStartMessage = isRequestStartMessage;
exports.isRequestEndMessage = isRequestEndMessage;
var faro_core_1 = require("@grafana/faro-core");
var const_1 = require("./monitors/const");
function isRequestStartMessage(msg) {
return msg.type === const_1.MESSAGE_TYPE_HTTP_REQUEST_START;
}
function isRequestEndMessage(msg) {
return msg.type === const_1.MESSAGE_TYPE_HTTP_REQUEST_END;
}
/**
* Tracks events in a time‑boxed activity window. When the window goes quiet for `inactivityMs`,
* it enters a draining phase: new short events are ignored; only active operations are awaited
* until they end or `drainTimeoutMs` elapses.
*/
var ActivityWindowTracker = /** @class */ (function (_super) {
__extends(ActivityWindowTracker, _super);
function ActivityWindowTracker(eventsObservable, options) {
var _a, _b, _c, _d;
var _this = _super.call(this) || this;
_this._tracking = false;
_this.eventsObservable = eventsObservable;
_this._options = {
inactivityMs: (_a = options === null || options === void 0 ? void 0 : options.inactivityMs) !== null && _a !== void 0 ? _a : 100,
drainTimeoutMs: (_b = options === null || options === void 0 ? void 0 : options.drainTimeoutMs) !== null && _b !== void 0 ? _b : 10 * 1000,
isOperationStart: (_c = options === null || options === void 0 ? void 0 : options.isOperationStart) !== null && _c !== void 0 ? _c : (function () { return undefined; }),
isOperationEnd: (_d = options === null || options === void 0 ? void 0 : options.isOperationEnd) !== null && _d !== void 0 ? _d : (function () { return undefined; }),
};
_this._initialize();
return _this;
}
ActivityWindowTracker.prototype._initialize = function () {
var _this = this;
this.eventsObservable
.filter(function () {
return _this._tracking;
})
.subscribe(function (event) {
var _a, _b, _c;
_this._lastEventTime = Date.now();
(_a = _this._currentEvents) === null || _a === void 0 ? void 0 : _a.push(event);
var startKey = _this._options.isOperationStart(event);
if (startKey) {
(_b = _this._activeOperations) === null || _b === void 0 ? void 0 : _b.set(startKey, true);
}
var endKey = _this._options.isOperationEnd(event);
if (endKey) {
(_c = _this._activeOperations) === null || _c === void 0 ? void 0 : _c.delete(endKey);
}
_this._scheduleInactivityCheck();
});
};
ActivityWindowTracker.prototype.startTracking = function () {
if (this._tracking) {
return;
}
this._tracking = true;
this._startTime = Date.now();
this._lastEventTime = Date.now();
this.notify({
message: 'tracking-started',
});
this._currentEvents = [];
this._activeOperations = new Map();
this._scheduleInactivityCheck();
};
ActivityWindowTracker.prototype.stopTracking = function () {
this._tracking = false;
this._clearTimer(this._inactivityTid);
this._clearTimer(this._drainTid);
var duration = 0;
if (this.hasActiveOperations()) {
duration = Date.now() - this._startTime;
}
else {
duration = this._lastEventTime ? this._lastEventTime - this._startTime : 0;
}
this.notify({
message: 'tracking-ended',
events: this._currentEvents,
duration: duration,
});
};
ActivityWindowTracker.prototype._scheduleInactivityCheck = function () {
var _this = this;
this._inactivityTid = startTimeout(this._inactivityTid, function () {
if (_this.hasActiveOperations()) {
_this._startDrainTimeout();
}
else {
_this.stopTracking();
}
}, this._options.inactivityMs);
};
ActivityWindowTracker.prototype._startDrainTimeout = function () {
var _this = this;
this._drainTid = startTimeout(this._drainTid, function () {
_this.stopTracking();
}, this._options.drainTimeoutMs);
};
ActivityWindowTracker.prototype.hasActiveOperations = function () {
return !!this._activeOperations && this._activeOperations.size > 0;
};
ActivityWindowTracker.prototype._clearTimer = function (id) {
if (id) {
clearTimeout(id);
}
};
return ActivityWindowTracker;
}(faro_core_1.Observable));
exports.ActivityWindowTracker = ActivityWindowTracker;
function startTimeout(timeoutId, cb, delay) {
if (timeoutId) {
clearTimeout(timeoutId);
}
//@ts-expect-error for some reason vscode is using the node types
timeoutId = setTimeout(function () {
cb();
}, delay);
return timeoutId;
}
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