serverless-offline-msk
Version:
A serverless offline plugin that enables AWS MSK events
53 lines (36 loc) • 1.12 kB
JavaScript
;
/*
Encode functions adapted from:
Version 1.0 12/25/99 Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
http://www.onicos.com/staff/iz/amuse/javascript/expert/base64.txt
*/
const Stream = require('stream');
const internals = {};
exports.encode = function (buffer) {
return Buffer.from(buffer.toString('base64'));
};
exports.Encoder = class Encoder extends Stream.Transform {
constructor() {
super();
this._reminder = null;
}
_transform(chunk, encoding, callback) {
let part = this._reminder ? Buffer.concat([this._reminder, chunk]) : chunk;
const remaining = part.length % 3;
if (remaining) {
this._reminder = part.slice(part.length - remaining);
part = part.slice(0, part.length - remaining);
}
else {
this._reminder = null;
}
this.push(exports.encode(part));
return callback();
}
_flush(callback) {
if (this._reminder) {
this.push(exports.encode(this._reminder));
}
return callback();
}
};