Package io.netty.util

Class CharsetUtil

  • public final class CharsetUtil
extends java.lang.Object
    A utility class that provides various common operations and constants related with Charset and its relevant classes.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.nio.charset.Charset ISO_8859_1
      ISO Latin Alphabet No. 1, as known as ISO-LATIN-1
      static java.nio.charset.Charset US_ASCII
      7-bit ASCII, as known as ISO646-US or the Basic Latin block of the Unicode character set
      static java.nio.charset.Charset UTF_16
      16-bit UTF (UCS Transformation Format) whose byte order is identified by an optional byte-order mark
      static java.nio.charset.Charset UTF_16BE
      16-bit UTF (UCS Transformation Format) whose byte order is big-endian
      static java.nio.charset.Charset UTF_16LE
      16-bit UTF (UCS Transformation Format) whose byte order is little-endian
      static java.nio.charset.Charset UTF_8
      8-bit UTF (UCS Transformation Format)

    • Method Summary

      All Methods Static Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      static java.nio.charset.CharsetDecoder decoder​(java.nio.charset.Charset charset)
      Returns a cached thread-local CharsetDecoder for the specified Charset.
      static java.nio.charset.CharsetDecoder decoder​(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction codingErrorAction)
      Returns a new CharsetDecoder for the Charset with the specified error action.
      static java.nio.charset.CharsetDecoder decoder​(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction malformedInputAction, java.nio.charset.CodingErrorAction unmappableCharacterAction)
      Returns a new CharsetDecoder for the Charset with specified error actions.
      static java.nio.charset.CharsetEncoder encoder​(java.nio.charset.Charset charset)
      Returns a cached thread-local CharsetEncoder for the specified Charset.
      static java.nio.charset.CharsetEncoder encoder​(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction codingErrorAction)
      Returns a new CharsetEncoder for the Charset with the specified error action.
      static java.nio.charset.CharsetEncoder encoder​(java.nio.charset.Charset charset, java.nio.charset.CodingErrorAction malformedInputAction, java.nio.charset.CodingErrorAction unmappableCharacterAction)
      Returns a new CharsetEncoder for the Charset with specified error actions.
      static java.nio.charset.CharsetDecoder getDecoder​(java.nio.charset.Charset charset)
      Deprecated.
      Use decoder(Charset).
      static java.nio.charset.CharsetEncoder getEncoder​(java.nio.charset.Charset charset)
      Deprecated.
      Use encoder(Charset).
      static java.nio.charset.Charset[] values()  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • UTF_16

        public static final java.nio.charset.Charset UTF_16
        16-bit UTF (UCS Transformation Format) whose byte order is identified by an optional byte-order mark

      • UTF_16BE

        public static final java.nio.charset.Charset UTF_16BE
        16-bit UTF (UCS Transformation Format) whose byte order is big-endian

      • UTF_16LE

        public static final java.nio.charset.Charset UTF_16LE
        16-bit UTF (UCS Transformation Format) whose byte order is little-endian

      • UTF_8

        public static final java.nio.charset.Charset UTF_8
        8-bit UTF (UCS Transformation Format)

      • ISO_8859_1

        public static final java.nio.charset.Charset ISO_8859_1
        ISO Latin Alphabet No. 1, as known as ISO-LATIN-1

      • US_ASCII

        public static final java.nio.charset.Charset US_ASCII
        7-bit ASCII, as known as ISO646-US or the Basic Latin block of the Unicode character set

    • Method Detail

      • values

        public static java.nio.charset.Charset[] values()

      • getEncoder

        @Deprecated
public static java.nio.charset.CharsetEncoder getEncoder​(java.nio.charset.Charset charset)
        Deprecated.
        Use encoder(Charset).

      • encoder

        public static java.nio.charset.CharsetEncoder encoder​(java.nio.charset.Charset charset,
                                                      java.nio.charset.CodingErrorAction malformedInputAction,
                                                      java.nio.charset.CodingErrorAction unmappableCharacterAction)
        Returns a new CharsetEncoder for the Charset with specified error actions.
        Parameters:
        charset - The specified charset
        malformedInputAction - The encoder's action for malformed-input errors
        unmappableCharacterAction - The encoder's action for unmappable-character errors
        Returns:
        The encoder for the specified charset

      • encoder

        public static java.nio.charset.CharsetEncoder encoder​(java.nio.charset.Charset charset,
                                                      java.nio.charset.CodingErrorAction codingErrorAction)
        Returns a new CharsetEncoder for the Charset with the specified error action.
        Parameters:
        charset - The specified charset
        codingErrorAction - The encoder's action for malformed-input and unmappable-character errors
        Returns:
        The encoder for the specified charset

      • encoder

        public static java.nio.charset.CharsetEncoder encoder​(java.nio.charset.Charset charset)
        Returns a cached thread-local CharsetEncoder for the specified Charset.
        Parameters:
        charset - The specified charset
        Returns:
        The encoder for the specified charset

      • getDecoder

        @Deprecated
public static java.nio.charset.CharsetDecoder getDecoder​(java.nio.charset.Charset charset)
        Deprecated.
        Use decoder(Charset).

      • decoder

        public static java.nio.charset.CharsetDecoder decoder​(java.nio.charset.Charset charset,
                                                      java.nio.charset.CodingErrorAction malformedInputAction,
                                                      java.nio.charset.CodingErrorAction unmappableCharacterAction)
        Returns a new CharsetDecoder for the Charset with specified error actions.
        Parameters:
        charset - The specified charset
        malformedInputAction - The decoder's action for malformed-input errors
        unmappableCharacterAction - The decoder's action for unmappable-character errors
        Returns:
        The decoder for the specified charset

      • decoder

        public static java.nio.charset.CharsetDecoder decoder​(java.nio.charset.Charset charset,
                                                      java.nio.charset.CodingErrorAction codingErrorAction)
        Returns a new CharsetDecoder for the Charset with the specified error action.
        Parameters:
        charset - The specified charset
        codingErrorAction - The decoder's action for malformed-input and unmappable-character errors
        Returns:
        The decoder for the specified charset

      • decoder

        public static java.nio.charset.CharsetDecoder decoder​(java.nio.charset.Charset charset)
        Returns a cached thread-local CharsetDecoder for the specified Charset.
        Parameters:
        charset - The specified charset
        Returns:
        The decoder for the specified charset