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diff src/org/eclipse/jetty/util/Utf8StringBuffer.java @ 802:3428c60d7cfc
replace jetty jars with source
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 07 Sep 2016 21:15:48 -0600 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/org/eclipse/jetty/util/Utf8StringBuffer.java Wed Sep 07 21:15:48 2016 -0600 @@ -0,0 +1,75 @@ +// +// ======================================================================== +// 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 StringBuffer. + * + * This class wraps a standard {@link java.lang.StringBuffer} 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 Utf8StringBuffer extends Utf8Appendable +{ + final StringBuffer _buffer; + + public Utf8StringBuffer() + { + super(new StringBuffer()); + _buffer = (StringBuffer)_appendable; + } + + public Utf8StringBuffer(int capacity) + { + super(new StringBuffer(capacity)); + _buffer = (StringBuffer)_appendable; + } + + @Override + public int length() + { + return _buffer.length(); + } + + @Override + public void reset() + { + super.reset(); + _buffer.setLength(0); + } + + public StringBuffer getStringBuffer() + { + checkState(); + return _buffer; + } + + @Override + public String toString() + { + checkState(); + return _buffer.toString(); + } +}