org.indunet.fastproto.checksum

类 ChecksumUtils

java.lang.Object

org.indunet.fastproto.checksum.ChecksumUtils

public class ChecksumUtils
extends Object

CRC utilities for CRC8/CRC16/CRC32. - calculate(data, offset, length, type) operates on [offset, offset + length). - Reuses singleton CRC engines (stateless, thread-safe under current design). - Endianness does not affect calculation; it only applies when reading/writing values elsewhere. - Throws CodecException if an unsupported type is requested.

从以下版本开始:

3.11.0

作者:

Deng Ran

字段概要

字段

限定符和类型	字段和说明
protected static BCC	BCC_INSTANCE
protected static CRC16CCITT	CRC16_CCITT_INSTANCE
protected static CRC16	CRC16_INSTANCE
protected static CRC16Modbus	CRC16_MODBUS_INSTANCE
protected static CRC32	CRC32_INSTANCE
protected static CRC32C	CRC32C_INSTANCE
protected static CRC64ECMA182	CRC64_ECMA182_INSTANCE
protected static CRC64ISO	CRC64_ISO_INSTANCE
protected static CRC8	CRC8_INSTANCE
protected static CRC8Maxim	CRC8_MAXIM_INSTANCE
protected static CRC8SMBus	CRC8_SMBUS_INSTANCE
protected static LRC	LRC_INSTANCE

构造器概要

构造器

构造器和说明
ChecksumUtils()

方法概要

限定符和类型	方法和说明
static int	bcc(byte[] data)
static int	bcc(byte[] data, int offset, int length)
static long	calculate(byte[] data, int offset, int length, Checksum.Type type) Calculate checksum for specific range.
static int	crc16(byte[] data)
static int	crc16(byte[] data, int offset, int length)
static int	crc16ccitt(byte[] data)
static int	crc16ccitt(byte[] data, int offset, int length)
static int	crc16modbus(byte[] data)
static int	crc16modbus(byte[] data, int offset, int length)
static int	crc32(byte[] data)
static int	crc32(byte[] data, int offset, int length)
static int	crc32c(byte[] data)
static int	crc32c(byte[] data, int offset, int length)
static long	crc64ecma182(byte[] data)
static long	crc64ecma182(byte[] data, int offset, int length)
static long	crc64iso(byte[] data)
static long	crc64iso(byte[] data, int offset, int length)
static int	crc8(byte[] data)
static int	crc8(byte[] data, int offset, int length)
static int	crc8maxim(byte[] data)
static int	crc8maxim(byte[] data, int offset, int length)
static int	crc8smbus(byte[] data)
static int	crc8smbus(byte[] data, int offset, int length)
static int	lrc(byte[] data)
static int	lrc(byte[] data, int offset, int length)

从类继承的方法 java.lang.Object

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

字段详细资料

CRC8_INSTANCE

protected static final CRC8 CRC8_INSTANCE

CRC8_SMBUS_INSTANCE

protected static final CRC8SMBus CRC8_SMBUS_INSTANCE

CRC8_MAXIM_INSTANCE

protected static final CRC8Maxim CRC8_MAXIM_INSTANCE

BCC_INSTANCE

protected static final BCC BCC_INSTANCE

LRC_INSTANCE

protected static final LRC LRC_INSTANCE

CRC16_INSTANCE

protected static final CRC16 CRC16_INSTANCE

CRC16_MODBUS_INSTANCE

protected static final CRC16Modbus CRC16_MODBUS_INSTANCE

CRC16_CCITT_INSTANCE

protected static final CRC16CCITT CRC16_CCITT_INSTANCE

CRC32_INSTANCE

protected static final CRC32 CRC32_INSTANCE

CRC32C_INSTANCE

protected static final CRC32C CRC32C_INSTANCE

CRC64_ECMA182_INSTANCE

protected static final CRC64ECMA182 CRC64_ECMA182_INSTANCE

CRC64_ISO_INSTANCE

protected static final CRC64ISO CRC64_ISO_INSTANCE

构造器详细资料

ChecksumUtils

public ChecksumUtils()

方法详细资料

crc8

public static int crc8(byte[] data)

crc8smbus

public static int crc8smbus(byte[] data)

crc8maxim

public static int crc8maxim(byte[] data)

bcc

public static int bcc(byte[] data)

lrc

public static int lrc(byte[] data)

crc16

public static int crc16(byte[] data)

crc16modbus

public static int crc16modbus(byte[] data)

crc16ccitt

public static int crc16ccitt(byte[] data)

crc32

public static int crc32(byte[] data)

crc32c

public static int crc32c(byte[] data)

crc64ecma182

public static long crc64ecma182(byte[] data)

crc64iso

public static long crc64iso(byte[] data)

crc8

public static int crc8(byte[] data,
                       int offset,
                       int length)

crc8smbus

public static int crc8smbus(byte[] data,
                            int offset,
                            int length)

crc8maxim

public static int crc8maxim(byte[] data,
                            int offset,
                            int length)

bcc

public static int bcc(byte[] data,
                      int offset,
                      int length)

lrc

public static int lrc(byte[] data,
                      int offset,
                      int length)

crc16

public static int crc16(byte[] data,
                        int offset,
                        int length)

crc16modbus

public static int crc16modbus(byte[] data,
                              int offset,
                              int length)

crc16ccitt

public static int crc16ccitt(byte[] data,
                             int offset,
                             int length)

crc32

public static int crc32(byte[] data,
                        int offset,
                        int length)

crc32c

public static int crc32c(byte[] data,
                         int offset,
                         int length)

crc64ecma182

public static long crc64ecma182(byte[] data,
                                int offset,
                                int length)

crc64iso

public static long crc64iso(byte[] data,
                            int offset,
                            int length)

calculate

public static long calculate(byte[] data,
                             int offset,
                             int length,
                             Checksum.Type type)

Calculate checksum for specific range.