@splitsoftware/splitio-commons/esm/storages/inMemory/UniqueKeysCacheInMemory.js

Split JavaScript SDK common components

import { DEFAULT_CACHE_SIZE } from '../inRedis/constants';
import { setToArray } from '../../utils/lang/sets';
/**
 * Converts `uniqueKeys` data from cache into request payload for SS.
 */
export function fromUniqueKeysCollector(uniqueKeys) {
    var payload = [];
    var featureNames = Object.keys(uniqueKeys);
    for (var i = 0; i < featureNames.length; i++) {
        var featureName = featureNames[i];
        var userKeys = setToArray(uniqueKeys[featureName]);
        var uniqueKeysPayload = {
            f: featureName,
            ks: userKeys
        };
        payload.push(uniqueKeysPayload);
    }
    return { keys: payload };
}
var UniqueKeysCacheInMemory = /** @class */ (function () {
    function UniqueKeysCacheInMemory(uniqueKeysQueueSize) {
        if (uniqueKeysQueueSize === void 0) { uniqueKeysQueueSize = DEFAULT_CACHE_SIZE; }
        this.name = 'unique keys';
        this.uniqueTrackerSize = 0;
        this.uniqueKeysTracker = {};
        this.maxStorage = uniqueKeysQueueSize;
    }
    UniqueKeysCacheInMemory.prototype.setOnFullQueueCb = function (cb) {
        this.onFullQueue = cb;
    };
    /**
     * Store unique keys per feature.
     */
    UniqueKeysCacheInMemory.prototype.track = function (userKey, featureName) {
        if (!this.uniqueKeysTracker[featureName])
            this.uniqueKeysTracker[featureName] = new Set();
        var tracker = this.uniqueKeysTracker[featureName];
        if (!tracker.has(userKey)) {
            tracker.add(userKey);
            this.uniqueTrackerSize++;
        }
        if (this.uniqueTrackerSize >= this.maxStorage && this.onFullQueue) {
            this.onFullQueue();
        }
    };
    /**
     * Clear the data stored on the cache.
     */
    UniqueKeysCacheInMemory.prototype.clear = function () {
        this.uniqueTrackerSize = 0;
        this.uniqueKeysTracker = {};
    };
    /**
     * Pop the collected data, used as payload for posting.
     */
    UniqueKeysCacheInMemory.prototype.pop = function () {
        var data = this.uniqueKeysTracker;
        this.clear();
        return fromUniqueKeysCollector(data);
    };
    /**
     * Check if the cache is empty.
     */
    UniqueKeysCacheInMemory.prototype.isEmpty = function () {
        return Object.keys(this.uniqueKeysTracker).length === 0;
    };
    return UniqueKeysCacheInMemory;
}());
export { UniqueKeysCacheInMemory };