Package org.eclipse.jetty.util

Class Utf8Appendable

java.lang.Object
org.eclipse.jetty.util.Utf8Appendable
All Implemented Interfaces:
CharsetStringBuilder
Direct Known Subclasses:
Utf8StringBuffer, Utf8StringBuilder
public abstract class Utf8Appendable extends Object implements CharsetStringBuilder
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 Details

    • LOG

      protected static final org.slf4j.Logger LOG

    • REPLACEMENT

      public static final char REPLACEMENT
      See Also:

    • REPLACEMENT_UTF8

      public static final byte[] REPLACEMENT_UTF8

    • _appendable

      protected final Appendable _appendable

    • _state

      protected int _state

  • Constructor Details

    • Utf8Appendable

      public Utf8Appendable(Appendable appendable)

  • Method Details

    • length

      public abstract int length()

    • reset

      protected void reset()

    • append

      public void append(char c)

    • append

      public void append(String s)

    • append

      public void append(String s, int offset, int length)

    • append

      public void append(byte b)
      Specified by:
      append in interface CharsetStringBuilder

    • append

      public void append(ByteBuffer buf)
      Specified by:
      append in interface CharsetStringBuilder

    • append

      public void append(byte[] b)
      Specified by:
      append in interface CharsetStringBuilder

    • append

      public void append(byte[] b, int offset, int length)
      Specified by:
      append in interface CharsetStringBuilder

    • append

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

    • appendByte

      public void appendByte(byte b) throws IOException
      Throws:
      IOException

    • isUtf8SequenceComplete

      public boolean isUtf8SequenceComplete()

    • checkState

      public void checkState()

    • getPartialString

      public abstract String getPartialString()
      Returns:
      The UTF8 so far decoded, ignoring partial code points

    • takePartialString

      public 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 String toReplacedString()