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| 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 | 1x 1x 1x 13x 7x 7x 6x 6x 13x 14x 14x 14x 6x 8x | import { EncodingType } from "./EncodingType";
import { ZlibEncoder } from "./ZlibEncoder";
export class Encoder {
public encode(encoding: EncodingType, data: Buffer): Buffer {
let encoded: Buffer;
switch (encoding) {
case EncodingType.Raw:
encoded = data;
break;
case EncodingType.ZlibDeflate:
encoded = new ZlibEncoder().encode(data);
break;
default:
throw new Error("Unknown encoding type");
}
return Buffer.concat([Buffer.from([encoding]), encoded]);
}
public decode(buffer: Buffer): Buffer {
const encoding = buffer.readUInt8(0);
const raw = buffer.slice(1);
switch (encoding) {
case EncodingType.Raw:
return raw;
case EncodingType.ZlibDeflate:
return new ZlibEncoder().decode(raw);
default:
throw new Error("Unknown encoding type");
}
}
}
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