@microsoft/1ds-post-js
Version:
Microsoft Application Insights JavaScript SDK - 1ds-post-channel-js
93 lines • 3.77 kB
JavaScript
/*
* 1DS JS SDK POST plugin, 4.3.9
* Copyright (c) Microsoft and contributors. All rights reserved.
* (Microsoft Internal Only)
*/
/**
* EventBatch.ts
* @author Nev Wylie (newylie)
* @copyright Microsoft 2020
*/
import { isNullOrUndefined, isValueAssigned } from "@microsoft/1ds-core-js";
import { STR_EMPTY, STR_MSFPC } from "./InternalConstants";
import { _DYN_CONCAT, _DYN_COUNT, _DYN_EVENTS, _DYN_I_KEY, _DYN_LENGTH, _DYN_PUSH, _DYN_SPLIT } from "./__DynamicConstants";
function _getEventMsfpc(theEvent) {
var intWeb = ((theEvent.ext || {})["intweb"]);
if (intWeb && isValueAssigned(intWeb[STR_MSFPC])) {
return intWeb[STR_MSFPC];
}
return null;
}
function _getMsfpc(theEvents) {
var msfpc = null;
for (var lp = 0; msfpc === null && lp < theEvents[_DYN_LENGTH /* @min:%2elength */]; lp++) {
msfpc = _getEventMsfpc(theEvents[lp]);
}
return msfpc;
}
/**
* This class defines a "batch" events related to a specific iKey, it is used by the PostChannel and HttpManager
* to collect and transfer ownership of events without duplicating them in-memory. This reduces the previous
* array duplication and shared ownership issues that occurred due to race conditions caused by the async nature
* of sending requests.
*/
var EventBatch = /** @class */ (function () {
/**
* Private constructor so that caller is forced to use the static create method.
* @param iKey - The iKey to associate with the events (not validated)
* @param addEvents - The optional collection of events to assign to this batch - defaults to an empty array.
*/
function EventBatch(iKey, addEvents) {
var events = addEvents ? [][_DYN_CONCAT /* @min:%2econcat */](addEvents) : [];
var _self = this;
var _msfpc = _getMsfpc(events);
_self[_DYN_I_KEY /* @min:%2eiKey */] = function () {
return iKey;
};
_self.Msfpc = function () {
// return the cached value unless it's undefined -- used to avoid cpu
return _msfpc || STR_EMPTY;
};
_self[_DYN_COUNT /* @min:%2ecount */] = function () {
return events[_DYN_LENGTH /* @min:%2elength */];
};
_self[_DYN_EVENTS /* @min:%2eevents */] = function () {
return events;
};
_self.addEvent = function (theEvent) {
if (theEvent) {
events[_DYN_PUSH /* @min:%2epush */](theEvent);
if (!_msfpc) {
// Not found so try and find one
_msfpc = _getEventMsfpc(theEvent);
}
return true;
}
return false;
};
_self[_DYN_SPLIT /* @min:%2esplit */] = function (fromEvent, numEvents) {
// Create a new batch with the same iKey
var theEvents;
if (fromEvent < events[_DYN_LENGTH /* @min:%2elength */]) {
var cnt = events[_DYN_LENGTH /* @min:%2elength */] - fromEvent;
if (!isNullOrUndefined(numEvents)) {
cnt = numEvents < cnt ? numEvents : cnt;
}
theEvents = events.splice(fromEvent, cnt);
// reset the fetched msfpc value
_msfpc = _getMsfpc(events);
}
return new EventBatch(iKey, theEvents);
};
}
/**
* Creates a new Event Batch object
* @param iKey - The iKey associated with this batch of events
*/
EventBatch.create = function (iKey, theEvents) {
return new EventBatch(iKey, theEvents);
};
return EventBatch;
}());
export { EventBatch };
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