/**
   * Zips byte array.
   *
   * @param input Input bytes.
   * @param initBufSize Initial buffer size.
   * @return Zipped byte array.
   * @throws IOException If failed.
   */
  public static byte[] zipBytes(byte[] input, int initBufSize) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream(initBufSize);

    try (ZipOutputStream zos = new ZipOutputStream(bos)) {
      ZipEntry entry = new ZipEntry("");

      try {
        entry.setSize(input.length);

        zos.putNextEntry(entry);

        zos.write(input);
      } finally {
        zos.closeEntry();
      }
    }

    return bos.toByteArray();
  }
Beispiel #2
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  static void testCopyFileToOuputStream(int size) throws IOException {
    Path source = createTempFile("blah", null);
    try {
      byte[] b = new byte[size];
      rand.nextBytes(b);
      write(source, b);

      ByteArrayOutputStream out = new ByteArrayOutputStream();

      long n = copy(source, out);
      assertTrue(n == size);
      assertTrue(out.size() == size);

      byte[] read = out.toByteArray();
      assertTrue(Arrays.equals(read, b));

      // check output stream is open
      out.write(0);
      assertTrue(out.size() == size + 1);
    } finally {
      delete(source);
    }
  }