Class Utf8Appendable

  • Direct Known Subclasses:
    NullAppendable, Utf8StringBuffer, Utf8StringBuilder

    public abstract class Utf8Appendable
    extends java.lang.Object
    Utf8 Appendable abstract base class This abstract class wraps a standard Appendable and provides methods to append UTF-8 encoded bytes, that are converted into characters. This class is stateful and up to 4 calls to 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/ License information for Bjoern Hoehrmann's code: Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    • Field Detail

      • LOG

        protected static final org.slf4j.Logger LOG
      • REPLACEMENT_UTF8

        public static final byte[] REPLACEMENT_UTF8
      • _appendable

        protected final java.lang.Appendable _appendable
      • _state

        protected int _state
    • Constructor Detail

      • Utf8Appendable

        public Utf8Appendable​(java.lang.Appendable appendable)
    • Method Detail

      • length

        public abstract int length()
      • reset

        protected void reset()
      • append

        public void append​(char c)
      • append

        public void append​(java.lang.String s)
      • append

        public void append​(java.lang.String s,
                           int offset,
                           int length)
      • append

        public void append​(byte b)
      • append

        public void append​(java.nio.ByteBuffer buf)
      • append

        public void append​(byte[] b)
      • append

        public void append​(byte[] b,
                           int offset,
                           int length)
      • append

        public boolean append​(byte[] b,
                              int offset,
                              int length,
                              int maxChars)
      • appendByte

        protected void appendByte​(byte b)
                           throws java.io.IOException
        Throws:
        java.io.IOException
      • isUtf8SequenceComplete

        public boolean isUtf8SequenceComplete()
      • checkState

        public void checkState()
      • getPartialString

        public abstract java.lang.String getPartialString()
        Returns:
        The UTF8 so far decoded, ignoring partial code points
      • takePartialString

        public java.lang.String takePartialString()
        Take the partial string an reset in internal buffer, but retain partial code points.
        Returns:
        The UTF8 so far decoded, ignoring partial code points
      • toReplacedString

        public java.lang.String toReplacedString()