JedisClusterCRC16

java.lang.Object

redis.clients.jedis.util.JedisClusterCRC16

public final class JedisClusterCRC16 extends 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

Description

private static final int[]

LOOKUP_TABLE
Constructor Summary

Constructors

Modifier

Constructor

Description

private

JedisClusterCRC16()
Method Summary

Modifier and Type

Method

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(String key)

static int

getSlot(byte[] key)

static int

getSlot(String key)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- LOOKUP_TABLE
  
  private static final int[] LOOKUP_TABLE
Constructor Details
- JedisClusterCRC16
  
  private JedisClusterCRC16()
Method Details
- getSlot
  
  public static int getSlot(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 -
  
  s -
  
  e -
  
  Returns:
  
  CRC16 as integer value See Issue 733
- getCRC16
  
  public static int getCRC16(byte[] bytes)
- getCRC16
  
  public static int getCRC16(String key)