| // |
| // ======================================================================== |
| // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.util; |
| |
| |
| /* ------------------------------------------------------------ */ |
| /** UTF-8 StringBuilder. |
| * |
| * This class wraps a standard {@link java.lang.StringBuilder} and provides methods to append |
| * UTF-8 encoded bytes, that are converted into characters. |
| * |
| * This class is stateful and up to 4 calls to {@link #append(byte)} may be needed before |
| * state a character is appended to the string buffer. |
| * |
| * The UTF-8 decoding is done by this class and no additional buffers or Readers are used. |
| * The UTF-8 code was inspired by http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ |
| * |
| */ |
| public class Utf8StringBuilder extends Utf8Appendable |
| { |
| final StringBuilder _buffer; |
| |
| public Utf8StringBuilder() |
| { |
| super(new StringBuilder()); |
| _buffer=(StringBuilder)_appendable; |
| } |
| |
| public Utf8StringBuilder(int capacity) |
| { |
| super(new StringBuilder(capacity)); |
| _buffer=(StringBuilder)_appendable; |
| } |
| |
| @Override |
| public int length() |
| { |
| return _buffer.length(); |
| } |
| |
| @Override |
| public void reset() |
| { |
| super.reset(); |
| _buffer.setLength(0); |
| } |
| |
| public StringBuilder getStringBuilder() |
| { |
| checkState(); |
| return _buffer; |
| } |
| |
| @Override |
| public String toString() |
| { |
| checkState(); |
| return _buffer.toString(); |
| } |
| |
| |
| } |