-
Notifications
You must be signed in to change notification settings - Fork 0
/
cache.js
41 lines (40 loc) · 992 Bytes
/
cache.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
"use strict";
class Cache {
constructor() {
let e = new Map();
this.get = t => s => {
const o = s.domainName;
let r = e.has(o) && e.get(o);
if (r && Date.now() - r.timestamp <= 300000) {
Logger.info(`Cache hit for ${o}`);
} else {
Logger.info(`Cache missed for ${o}`);
try {
const i = t(s);
r = {
response: i,
timestamp: Date.now()
};
if (i && e.size < 2500 && o !== "debug") {
e.set(o, r);
}
} catch (e) {
Logger.error(`UCC fail open for ${o} due to ${e.message}`);
return {
cancel: false
};
}
}
return r.response;
};
this.evictCache = () => {
const t = e.size;
for (let [t, s] of e) {
if (Date.now() - s.timestamp > 300000) {
e.delete(t);
}
}
Logger.info(`Evicted ${t - e.size} expired cache entries.`);
};
}
}