/** * Create a new TarFile for the given file. * * @param file * @throws TarException * @throws IOException */ public TarFile(File file) throws TarException, IOException { this.file = file; InputStream in = new FileInputStream(file); // First, check if it's a GZIPInputStream. try { in = new GZIPInputStream(in); } catch (IOException e) { // If it is not compressed we close // the old one and recreate in.close(); in = new FileInputStream(file); } entryEnumerationStream = new TarInputStream(in); curEntry = entryEnumerationStream.getNextEntry(); }
public boolean extractTar(String asset, String target) { byte buf[] = new byte[1024 * 1024]; InputStream assetStream = null; TarInputStream tis = null; try { assetStream = mAssetManager.open(asset, AssetManager.ACCESS_STREAMING); tis = new TarInputStream( new BufferedInputStream( new GZIPInputStream(new BufferedInputStream(assetStream, 8192)), 8192)); } catch (IOException e) { Log.e("python", "opening up extract tar", e); return false; } while (true) { TarEntry entry = null; try { entry = tis.getNextEntry(); } catch (java.io.IOException e) { Log.e("python", "extracting tar", e); return false; } if (entry == null) { break; } Log.i("python", "extracting " + entry.getName()); if (entry.isDirectory()) { try { new File(target + "/" + entry.getName()).mkdirs(); } catch (SecurityException e) { } ; continue; } OutputStream out = null; String path = target + "/" + entry.getName(); try { out = new BufferedOutputStream(new FileOutputStream(path), 8192); } catch (FileNotFoundException e) { } catch (SecurityException e) { } ; if (out == null) { Log.e("python", "could not open " + path); return false; } try { while (true) { int len = tis.read(buf); if (len == -1) { break; } out.write(buf, 0, len); } out.flush(); out.close(); } catch (java.io.IOException e) { Log.e("python", "extracting zip", e); return false; } } try { tis.close(); assetStream.close(); } catch (IOException e) { // pass } return true; }