com.alipay.sofa.common.utils

Class CharsetUtil

java.lang.Object

com.alipay.sofa.common.utils.CharsetUtil

public class CharsetUtil
extends Object

Util to determine Charsets, the implements fork from guava.

Version:

CharsetUtil.java, v 0.1 2023年04月14日 2:06 PM huzijie Exp $

Author:

huzijie

See Also:

Utf8.isWellFormed(byte[])

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	CHARSET_MONITOR_LOG
static int	MODE_ASSERT
static int	MODE_MONITOR

Constructor Summary

Constructors

Constructor and Description
CharsetUtil()

Method Summary

Modifier and Type	Method and Description
static void	assertUTF8WellFormed(byte[] bytes) Asserts the given byte array is well formed in UTF-8 encoding format.
static void	assertUTF8WellFormed(byte[] bytes, int off, int len) Asserts that a portion of the given byte array is well formed in UTF-8 encoding format.
static void	checkUTF8WellFormed(byte[] bytes, int mode) Checks whether the given byte array is well formed in UTF-8 encoding format.
static void	checkUTF8WellFormed(byte[] bytes, int off, int len, int mode) Checks whether a portion of the given byte array is well formed in UTF-8 encoding format.
static boolean	isUTF8WellFormed(byte[] bytes) Determines whether the given byte array is well formed in UTF-8 encoding format according to Unicode 6.0.
static boolean	isUTF8WellFormed(byte[] bytes, int off, int len) Determines whether a portion of the given byte array is well formed in UTF-8 encoding format according to Unicode 6.0.
static void	monitorUTF8WellFormed(byte[] bytes) Monitor the given byte array is well formed in UTF-8 encoding format.
static void	monitorUTF8WellFormed(byte[] bytes, int off, int len) Monitor that a portion of the given byte array is well formed in UTF-8 encoding format.

Methods inherited from class java.lang.Object

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

Field Detail

CHARSET_MONITOR_LOG

public static org.slf4j.Logger CHARSET_MONITOR_LOG

MODE_ASSERT

public static final int MODE_ASSERT

See Also:

Constant Field Values

MODE_MONITOR

public static final int MODE_MONITOR

See Also:

Constant Field Values

Constructor Detail

CharsetUtil

public CharsetUtil()

Method Detail

assertUTF8WellFormed

public static void assertUTF8WellFormed(byte[] bytes)

Asserts the given byte array is well formed in UTF-8 encoding format.

Parameters:

bytes - The byte array to be checked.

assertUTF8WellFormed

public static void assertUTF8WellFormed(byte[] bytes,
                                        int off,
                                        int len)

Asserts that a portion of the given byte array is well formed in UTF-8 encoding format.

Parameters:

bytes - The byte array to be checked.

off - The starting position in the array to be checked.

len - The length of the portion to be checked.

monitorUTF8WellFormed

public static void monitorUTF8WellFormed(byte[] bytes)

Monitor the given byte array is well formed in UTF-8 encoding format.

Parameters:

bytes - The byte array to be checked.

monitorUTF8WellFormed

public static void monitorUTF8WellFormed(byte[] bytes,
                                         int off,
                                         int len)

Monitor that a portion of the given byte array is well formed in UTF-8 encoding format.

Parameters:

bytes - The byte array to be checked.

off - The starting position in the array to be checked.

len - The length of the portion to be checked.

checkUTF8WellFormed

public static void checkUTF8WellFormed(byte[] bytes,
                                       int mode)

Checks whether the given byte array is well formed in UTF-8 encoding format.

Parameters:

bytes - The byte array to be checked.

mode - The checking mode when bytes isn't well formed in UTF-8 encoding forma .

In mode 0, it will throw IllegalArgumentException.

In mode 1, it will print error log in slf4j logger: CHARSET_MONITOR_LOG

checkUTF8WellFormed

public static void checkUTF8WellFormed(byte[] bytes,
                                       int off,
                                       int len,
                                       int mode)

Checks whether a portion of the given byte array is well formed in UTF-8 encoding format.

Parameters:

bytes - The byte array to be checked.

off - The starting position in the array to be checked.

len - The length of the portion to be checked.

mode - The checking mode when bytes isn't well formed in UTF-8 encoding forma .

In mode 0, it will throw IllegalArgumentException.

In mode 1, it will print error log in slf4j logger: CHARSET_MONITOR_LOG

isUTF8WellFormed

public static boolean isUTF8WellFormed(byte[] bytes)

Determines whether the given byte array is well formed in UTF-8 encoding format according to Unicode 6.0.

Parameters:

bytes - The byte array to be checked.

Returns:

true if the byte array is in well formed UTF-8 encoding format, false otherwise

isUTF8WellFormed

public static boolean isUTF8WellFormed(byte[] bytes,
                                       int off,
                                       int len)

Determines whether a portion of the given byte array is well formed in UTF-8 encoding format according to Unicode 6.0.

Parameters:

bytes - The byte array to be checked.

off - The starting position in the array to be checked.

len - The length of the portion to be checked.

Returns:

true if the byte array is in well formed UTF-8 encoding format, false otherwise

See Also:

Utf8.isWellFormed(byte[], int, int)