@google-cloud/logging
Version:
Cloud Logging Client Library for Node.js
68 lines • 2.2 kB
JavaScript
;
/*!
* Copyright 2024 Google LLC. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.EventId = void 0;
const crypto = require("crypto");
const chars = '.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz';
function encode(data) {
// Code for this encode method is copied verbatim from the eventid package.
let s = '';
const l = data.length;
let hang = 0;
for (let i = 0; i < l; i++) {
const v = data[i];
switch (i % 3) {
case 0:
s += chars[v >> 2];
hang = (v & 3) << 4;
break;
case 1:
s += chars[hang | (v >> 4)];
hang = (v & 0xf) << 2;
break;
case 2:
s += chars[hang | (v >> 6)];
s += chars[v & 0x3f];
hang = 0;
break;
}
}
if (l % 3)
s += chars[hang];
return s;
}
class EventId {
constructor() {
this.b = new Uint8Array(24);
// Unlike the eventid package, we use crypto here to generate the buffer
// If we use the uuid package it will cause scan errors
crypto.randomFillSync(this.b, 8, 16);
}
new() {
// Code in this new() method is copied verbatim from eventid package.
for (let i = 7; i >= 0; i--) {
if (this.b[i] !== 255) {
this.b[i]++;
break;
}
this.b[i] = 0;
}
return encode(this.b);
}
}
exports.EventId = EventId;
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