redis.clients.util

Class JedisClusterCRC16

java.lang.Object

redis.clients.util.JedisClusterCRC16

public final class JedisClusterCRC16
extends java.lang.Object

CRC16 Implementation according to CCITT standard Polynomial : 1021 (x^16 + x^12 + x^5 + 1) See Appendix A. CRC16 reference implementation in ANSI C

Field Summary

Fields

Modifier and Type	Field and Description
private static int[]	LOOKUP_TABLE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	JedisClusterCRC16()

Method Summary

Modifier and Type	Method and Description
static int	getCRC16(byte[] bytes)
static int	getCRC16(byte[] bytes, int s, int e) Create a CRC16 checksum from the bytes.
static int	getCRC16(java.lang.String key)
static int	getSlot(byte[] key)
static int	getSlot(java.lang.String key)

Methods inherited from class java.lang.Object

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

Field Detail

LOOKUP_TABLE

private static final int[] LOOKUP_TABLE

Constructor Detail

JedisClusterCRC16

private JedisClusterCRC16()

Method Detail

getSlot

public static int getSlot(java.lang.String key)

getSlot

public static int getSlot(byte[] key)

getCRC16

public static int getCRC16(byte[] bytes,
                           int s,
                           int e)

Create a CRC16 checksum from the bytes. implementation is from mp911de/lettuce, modified with some more optimizations

Parameters:

bytes -

Returns:

CRC16 as integer value See Issue 733

getCRC16

public static int getCRC16(byte[] bytes)

getCRC16

public static int getCRC16(java.lang.String key)