Method pctEncode

core/src/main/java/feign/template/UriUtils.java:179–185

Percent Encode the provided byte. @param data to encode @param bos with the output stream to use.

(byte data, ByteArrayOutputStream bos)

   * @param bos with the output stream to use.
   */
  private static void pctEncode(byte data, ByteArrayOutputStream bos) {
    bos.write('%');
    char hex1 = Character.toUpperCase(Character.forDigit((data >> 4) & 0xF, 16));
    char hex2 = Character.toUpperCase(Character.forDigit(data & 0xF, 16));
    bos.write(hex1);
    bos.write(hex2);
  }

  private static boolean isAlpha(int c) {
    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z');