Class UTFUtils

java.lang.Object
org.jboss.marshalling.UTFUtils
public final class UTFUtils extends Object
Handy utility methods for dealing with strings in the modified UTF-8 format.

  • Field Details

  • Constructor Details

    • UTFUtils

      private UTFUtils()

  • Method Details

    • getShortUTFLength

      public static int getShortUTFLength(String s) throws UTFDataFormatException
      Get the number of bytes used by the modified UTF-8 encoded form of the given string. If the length is greater than 65536, an exception is thrown.
      Parameters:
      s - the string
      Returns:
      the length
      Throws:
      UTFDataFormatException - if the string is longer than 65536 characters
      See Also:

    • getLongUTFLength

      public static long getLongUTFLength(String s)
      Get the number of bytes used by the modified UTF-8 encoded form of the given string.
      Parameters:
      s - the string
      Returns:
      the length
      See Also:

    • writeUTFBytes

      public static void writeUTFBytes(ByteOutput output, String s) throws IOException
      Write the modified UTF-8 form of the given string to the given output.
      Parameters:
      output - the output to write to
      s - the string
      Throws:
      IOException - if an I/O error occurs
      See Also:

    • readUTFBytes

      public static String readUTFBytes(ByteInput input, int len) throws IOException
      Read the given number of characters from the given byte input. The length given is in characters, NOT in bytes.
      Parameters:
      input - the byte source
      len - the number of characters to read
      Returns:
      the string
      Throws:
      IOException - if an I/O error occurs
      See Also:

    • readUTFBytesByByteCount

      public static String readUTFBytesByByteCount(ByteInput input, long len) throws IOException
      Read the given number of characters from the given byte input. The length given is in bytes.
      Parameters:
      input - the byte source
      len - the number of bytes to read
      Returns:
      the string
      Throws:
      IOException - if an I/O error occurs
      See Also:

    • readUTFZBytes

      public static String readUTFZBytes(ByteInput input) throws IOException
      Read a null-terminated modified UTF-8 string from the given byte input. Bytes are read until a 0 is found or until the end of the stream, whichever comes first.
      Parameters:
      input - the input
      Returns:
      the string
      Throws:
      IOException - if an I/O error occurs
      See Also:

    • readUTFChar

      private static int readUTFChar(ByteInput input) throws IOException
      Throws:
      IOException