1  "use strict";
 2  Object.defineProperty(exports, "__esModule", { value: true });
 3  var LRU_1 = require("./utils/LRU");
 4  var CACHE_SIZE = 1000;
 5  /**
 6   * Inspired node-lru-cache[https://github.com/isaacs/node-lru-cache]
 7   */
 8  var EndpointCache = /** @class */ (function () {
 9      function EndpointCache(maxSize) {
10          if (maxSize === void 0) { maxSize = CACHE_SIZE; }
11          this.maxSize = maxSize;
12          this.cache = new LRU_1.LRUCache(maxSize);
13      }
14      ;
15      Object.defineProperty(EndpointCache.prototype, "size", {
16          get: function () {
17              return this.cache.length;
18          },
19          enumerable: true,
20          configurable: true
21      });
22      EndpointCache.prototype.put = function (key, value) {
23        var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;
24          var endpointRecord = this.populateValue(value);
25          this.cache.put(keyString, endpointRecord);
26      };
27      EndpointCache.prototype.get = function (key) {
28        var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;
29          var now = Date.now();
30          var records = this.cache.get(keyString);
31          if (records) {
32              for (var i = records.length-1; i >= 0; i--) {
33                  var record = records[i];
34                  if (record.Expire < now) {
35                      records.splice(i, 1);
36                  }
37              }
38              if (records.length === 0) {
39                  this.cache.remove(keyString);
40                  return undefined;
41              }
42          }
43          return records;
44      };
45      EndpointCache.getKeyString = function (key) {
46          var identifiers = [];
47          var identifierNames = Object.keys(key).sort();
48          for (var i = 0; i < identifierNames.length; i++) {
49              var identifierName = identifierNames[i];
50              if (key[identifierName] === undefined)
51                  continue;
52              identifiers.push(key[identifierName]);
53          }
54          return identifiers.join(' ');
55      };
56      EndpointCache.prototype.populateValue = function (endpoints) {
57          var now = Date.now();
58          return endpoints.map(function (endpoint) { return ({
59              Address: endpoint.Address || '',
60              Expire: now + (endpoint.CachePeriodInMinutes || 1) * 60 * 1000
61          }); });
62      };
63      EndpointCache.prototype.empty = function () {
64          this.cache.empty();
65      };
66      EndpointCache.prototype.remove = function (key) {
67        var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;
68          this.cache.remove(keyString);
69      };
70      return EndpointCache;
71  }());
72  exports.EndpointCache = EndpointCache;