weblogic.utils

Class CharUtils

java.lang.Object

weblogic.utils.CharUtils

public final class CharUtils
extends java.lang.Object

This class provides various character utilities, primarily related to converting between characters and bytes, escaping unicode characters, etc.

Excluded in public API Reference.

Field Summary

Fields

Modifier and Type	Field and Description
private static char[]	HEX_CHARS

Constructor Summary

Constructors

Modifier	Constructor and Description
private	CharUtils()

Method Summary

Modifier and Type	Method and Description
private static int	escapeChar(java.lang.StringBuilder sb, int offset) converts a character in a string buffer into its unicode escaped form.
static java.lang.String	unicodeEscapeInvalidChars(java.lang.String s, java.lang.String encoding) This method converts the characters of a String which are not valid in a particular codeset into unicode escape sequences.
private static java.lang.String	unicodeEscapeNonASCIIChars(java.lang.String s) Convert codepoint values > 0x7F to Unicode escape sequences.

Methods inherited from class java.lang.Object

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

Field Detail

HEX_CHARS

private static final char[] HEX_CHARS

Constructor Detail

CharUtils

private CharUtils()

Method Detail

unicodeEscapeInvalidChars

public static java.lang.String unicodeEscapeInvalidChars(java.lang.String s,
                                                         java.lang.String encoding)

This method converts the characters of a String which are not valid in a particular codeset into unicode escape sequences. Normally, when converting a String to a byte array of natively encoded characters, any characters which are not valid in the native codeset will be replaced with a question mark (?). You can use this method to convert such characters to unicode escape sequences before doing the conversion, thus preserving the character information. JDK methods used here may not be supported on all platforms, so we will fall back to unicodeEscapeNonASCIIChars. We also fall back to unicodeEscapeNonASCIIChars if encoding is NULL or invalid.

unicodeEscapeNonASCIIChars

private static java.lang.String unicodeEscapeNonASCIIChars(java.lang.String s)

Convert codepoint values > 0x7F to Unicode escape sequences. This is used when you don't know the codeset that you will be converting to.

escapeChar

private static int escapeChar(java.lang.StringBuilder sb,
                              int offset)

converts a character in a string buffer into its unicode escaped form.