How to use

FilterReader

in

java.io

@Override
public int read() throws IOException {
  if (spacesToInsert > 0) {
    pos++;
    spacesToInsert--;
    return ' ';
  }
  int c = super.read();
  if (c == '\t') {
    // Fill up with spaces up to the next tab stop
    int spaces = tabSize - (pos % tabSize);
    pos++;
    spacesToInsert = spaces - 1;
    return ' ';
  }
  if (c == '\n' || c == '\r') {
    // Reset position on new line
    pos = 0;
  } else {
    pos++;
  }
  return c;
}

@Override
public void close() throws IOException {
  cleanUpClassLoaders(cleanupLoaders);
  super.close();
}

@Override
public long skip(long n) throws IOException {
  count += n;
  return super.skip(n);
}

 public boolean ready() throws IOException {
  return pos < length || super.ready();
 }
}

@Override
public boolean ready() {
  try {
    return super.ready();
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
}

 @Override
 public int read(char[] cbuf, int off, int len) throws IOException {
  return super.read(cbuf, off, Math.min(chunk, len));
 }
};

@Override
public void close() throws IOException {
  if (lineBuf.length() > 0) {
    lines.add(lineBuf.toString());
    lineBuf.setLength(0);
  }
  super.close();
  closed = true;
}

@Override
public long skip(long n) throws IOException {
  count += n;
  return super.skip(n);
}

@Override
public boolean ready() throws IOException {
  ensureOpen();
  return (pos < buf.length) || super.ready();
}

public int read(char[] cbuf, int off, int len) throws IOException {
  int nr = super.read(cbuf, off, len);
  if (nr == -1) {
    logRead();
  } else {
    logText.append(new String(cbuf, off, nr));
  }
  return nr;
}

public void close() throws IOException {
  super.close();
  logRead();
}

@Override public long
skip(long n) throws IOException {
  this.aboutToRead();
  return super.skip(n);
}

@Override
public boolean ready() throws IOException {
  ensureOpen();
  return (pos < buf.length) || super.ready();
}

public int read() throws IOException {
  int c = super.read();
  if (c == -1) {
    logRead();
  } else {
    logText.append((char) c);
  }
  return c;
}

public void close() throws IOException {
  super.close();
  logRead();
}

  /** {@inheritDoc} */
  @Override
  public long skip(final long n) throws IOException {
    checkCloseInvoked("skip");
    return super.skip(n);
  }
}

public int read(char[] cbuf, int off, int len) throws IOException {
  int nr = super.read(cbuf, off, len);
  if (nr == -1) {
    logRead();
  } else {
    logText.append(new String(cbuf, off, nr));
  }
  return nr;
}

/**
 * Really close the input.
 *
 * @see java.io.Reader#close()
 *
 * @throws IOException When an I/O error occurs.
 */
public void doClose() throws IOException {
  super.close();
}

@Override
public long skip(final long pn) throws IOException {
  long n = pn;
  if (n < 0L) {
    throw new IllegalArgumentException("skip value is negative " + pn);
  }
  ensureOpen();
  int avail = buf.length - pos;
  if (avail > 0) {
    if (n <= avail) {
      pos += n;
      return n;
    } else {
      pos = buf.length;
      n -= avail;
    }
  }
  return avail + super.skip(n);
}

public int read() throws IOException {
  int c = super.read();
  if (c == -1) {
    logRead();
  } else {
    logText.append((char) c);
  }
  return c;
}