Package org.java_websocket.util

Class Charsetfunctions

java.lang.Object

org.java_websocket.util.Charsetfunctions

public class Charsetfunctions
extends Object

Method Summary

Modifier and Type	Method	Description
static byte[]	asciiBytes(String s)
static boolean	isValidUTF8(ByteBuffer data)	Calling isValidUTF8 with offset 0
static boolean	isValidUTF8(ByteBuffer data, int off)	Check if the provided BytebBuffer contains a valid utf8 encoded string.
static String	stringAscii(byte[] bytes)
static String	stringAscii(byte[] bytes, int offset, int length)
static String	stringUtf8(byte[] bytes)
static String	stringUtf8(ByteBuffer bytes)
static byte[]	utf8Bytes(String s)

Methods inherited from class java.lang.Object

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

Method Details

utf8Bytes

public static byte[] utf8Bytes(String s)

asciiBytes

public static byte[] asciiBytes(String s)

stringAscii

public static String stringAscii(byte[] bytes)

stringAscii

public static String stringAscii(byte[] bytes,
 int offset,
 int length)

stringUtf8

public static String stringUtf8(byte[] bytes)
                         throws InvalidDataException

Throws:

InvalidDataException

stringUtf8

public static String stringUtf8(ByteBuffer bytes)
                         throws InvalidDataException

Throws:

InvalidDataException

isValidUTF8

public static boolean isValidUTF8(ByteBuffer data,
 int off)

Check if the provided BytebBuffer contains a valid utf8 encoded string.

Using the algorithm "Flexible and Economical UTF-8 Decoder" by Björn Höhrmann (http://bjoern.hoehrmann.de/utf-8/decoder/dfa/)

Parameters:

data - the ByteBuffer

off - offset (for performance reasons)

Returns:

does the ByteBuffer contain a valid utf8 encoded string

isValidUTF8

public static boolean isValidUTF8(ByteBuffer data)

Calling isValidUTF8 with offset 0

Parameters:

data - the ByteBuffer

Returns:

does the ByteBuffer contain a valid utf8 encoded string