org.jf.util

Class Utf8Utils

java.lang.Object

org.jf.util.Utf8Utils

public final class Utf8Utils
extends java.lang.Object

Constants of type CONSTANT_Utf8_info.

Constructor Summary

Constructors

Constructor and Description
Utf8Utils()

Method Summary

Modifier and Type	Method and Description
static byte[]	stringToUtf8Bytes(java.lang.String string) Converts a string into its Java-style UTF-8 form.
static java.lang.String	utf8BytesToString(byte[] bytes, int start, int length) Converts an array of UTF-8 bytes into a string.
static java.lang.String	utf8BytesWithUtf16LengthToString(byte[] bytes, int start, int utf16Length) Converts an array of UTF-8 bytes into a string.
static java.lang.String	utf8BytesWithUtf16LengthToString(byte[] bytes, int start, int utf16Length, int[] readLength) Converts an array of UTF-8 bytes into a string.

Methods inherited from class java.lang.Object

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

Constructor Detail

Utf8Utils

public Utf8Utils()

Method Detail

stringToUtf8Bytes

public static byte[] stringToUtf8Bytes(java.lang.String string)

Converts a string into its Java-style UTF-8 form. Java-style UTF-8 differs from normal UTF-8 in the handling of character '\0' and surrogate pairs.

Parameters:

string - non-null; the string to convert

Returns:

non-null; the UTF-8 bytes for it

utf8BytesToString

public static java.lang.String utf8BytesToString(byte[] bytes,
                                                 int start,
                                                 int length)

Converts an array of UTF-8 bytes into a string.

Parameters:

bytes - non-null; the bytes to convert

start - the start index of the utf8 string to convert

length - the length of the utf8 string to convert, not including any null-terminator that might be present

Returns:

non-null; the converted string

utf8BytesWithUtf16LengthToString

public static java.lang.String utf8BytesWithUtf16LengthToString(@Nonnull
                                                                byte[] bytes,
                                                                int start,
                                                                int utf16Length)

Converts an array of UTF-8 bytes into a string.

Parameters:

bytes - non-null; the bytes to convert

start - the start index of the utf8 string to convert

utf16Length - the number of utf16 characters in the string to decode

Returns:

non-null; the converted string

utf8BytesWithUtf16LengthToString

public static java.lang.String utf8BytesWithUtf16LengthToString(@Nonnull
                                                                byte[] bytes,
                                                                int start,
                                                                int utf16Length,
                                                                @Nullable
                                                                int[] readLength)

Converts an array of UTF-8 bytes into a string.

Parameters:

bytes - non-null; the bytes to convert

start - the start index of the utf8 string to convert

utf16Length - the number of utf16 characters in the string to decode

readLength - If non-null, the first element will contain the number of bytes read after the method exits

Returns:

non-null; the converted string