Delete Bzip2Compress.mjs

src/core/operations/Bzip2Compress.mjs

@@ -1,73 +0,0 @@
-/**
- * @author Matt C [me@mitt.dev]
- * @copyright Crown Copyright 2019
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import OperationError from "../errors/OperationError.mjs";
-import Bzip2 from "libbzip2-wasm";
-import { isWorkerEnvironment } from "../Utils.mjs";
-
-/**
- * Bzip2 Compress operation
- */
-class Bzip2Compress extends Operation {
-
-    /**
-     * Bzip2Compress constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "Bzip2 Compress";
-        this.module = "Compression";
-        this.description = "Bzip2 is a compression library developed by Julian Seward (of GHC fame) that uses the Burrows-Wheeler algorithm. It only supports compressing single files and its compression is slow, however is more effective than Deflate (.gz & .zip).";
-        this.infoURL = "https://wikipedia.org/wiki/Bzip2";
-        this.inputType = "ArrayBuffer";
-        this.outputType = "ArrayBuffer";
-        this.args = [
-            {
-                name: "Block size (100s of kb)",
-                type: "number",
-                value: 9,
-                min: 1,
-                max: 9
-            },
-            {
-                name: "Work factor",
-                type: "number",
-                value: 30
-            }
-        ];
-    }
-
-    /**
-     * @param {ArrayBuffer} input
-     * @param {Object[]} args
-     * @returns {File}
-     */
-    run(input, args) {
-        const [blockSize, workFactor] = args;
-        if (input.byteLength <= 0) {
-            throw new OperationError("Please provide an input.");
-        }
-        if (isWorkerEnvironment()) self.sendStatusMessage("Loading Bzip2...");
-        return new Promise((resolve, reject) => {
-            Bzip2().then(bzip2 => {
-                if (isWorkerEnvironment()) self.sendStatusMessage("Compressing data...");
-                const inpArray = new Uint8Array(input);
-                const bzip2cc = bzip2.compressBZ2(inpArray, blockSize, workFactor);
-                if (bzip2cc.error !== 0) {
-                    reject(new OperationError(bzip2cc.error_msg));
-                } else {
-                    const output = bzip2cc.output;
-                    resolve(output.buffer.slice(output.byteOffset, output.byteLength + output.byteOffset));
-                }
-            });
-        });
-    }
-
-}
-
-export default Bzip2Compress;