69 lines
2.5 KiB
JavaScript
69 lines
2.5 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var LRU_1 = require("./utils/LRU");
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var CACHE_SIZE = 1000;
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/**
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* Inspired node-lru-cache[https://github.com/isaacs/node-lru-cache]
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*/
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var EndpointCache = /** @class */ (function () {
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function EndpointCache(maxSize) {
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if (maxSize === void 0) { maxSize = CACHE_SIZE; }
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this.maxSize = maxSize;
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this.cache = new LRU_1.LRUCache(maxSize);
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}
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;
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Object.defineProperty(EndpointCache.prototype, "size", {
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get: function () {
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return this.cache.length;
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},
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enumerable: true,
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configurable: true
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});
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EndpointCache.prototype.put = function (key, value) {
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var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;
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var endpointRecord = this.populateValue(value);
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this.cache.put(keyString, endpointRecord);
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};
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EndpointCache.prototype.get = function (key) {
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var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;
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var now = Date.now();
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var records = this.cache.get(keyString);
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if (records) {
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for (var i = 0; i < records.length; i++) {
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var record = records[i];
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if (record.Expire < now) {
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this.cache.remove(keyString);
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return undefined;
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}
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}
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}
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return records;
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};
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EndpointCache.getKeyString = function (key) {
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var identifiers = [];
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var identifierNames = Object.keys(key).sort();
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for (var i = 0; i < identifierNames.length; i++) {
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var identifierName = identifierNames[i];
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if (key[identifierName] === undefined)
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continue;
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identifiers.push(key[identifierName]);
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}
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return identifiers.join(' ');
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};
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EndpointCache.prototype.populateValue = function (endpoints) {
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var now = Date.now();
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return endpoints.map(function (endpoint) { return ({
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Address: endpoint.Address || '',
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Expire: now + (endpoint.CachePeriodInMinutes || 1) * 60 * 1000
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}); });
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};
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EndpointCache.prototype.empty = function () {
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this.cache.empty();
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};
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EndpointCache.prototype.remove = function (key) {
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var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;
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this.cache.remove(keyString);
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};
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return EndpointCache;
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}());
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exports.EndpointCache = EndpointCache;
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