@splitsoftware/splitio-commons/cjs/trackers/impressionObserver/impressionObserverSS.js

Split JavaScript SDK common components

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.impressionObserverSSFactory = exports.hashImpression128 = void 0;
var ImpressionObserver_1 = require("./ImpressionObserver");
var murmur3_128_x86_1 = require("../../utils/murmur3/murmur3_128_x86");
var buildKey_1 = require("./buildKey");
function hashImpression128(impression) {
    return (0, murmur3_128_x86_1.hash128)((0, buildKey_1.buildKey)(impression));
}
exports.hashImpression128 = hashImpression128;
var LAST_SEEN_CACHE_SIZE = 500000; // cache up to 500k impression hashes
function impressionObserverSSFactory() {
    return new ImpressionObserver_1.ImpressionObserver(LAST_SEEN_CACHE_SIZE, hashImpression128);
}
exports.impressionObserverSSFactory = impressionObserverSSFactory;