org.opendaylight.openflowplugin.openflow.md.util

Class ByteUtil

java.lang.Object

org.opendaylight.openflowplugin.openflow.md.util.ByteUtil

public abstract class ByteUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
ByteUtil()

Method Summary

Modifier and Type	Method and Description
static String	bytesToHexstring(byte[] bytes, String delimiter)
static long	bytesToUnsignedInt(byte[] bytes) Converts a 4 byte array of unsigned bytes to unsigned int
static long	bytesToUnsignedMedium(byte[] bytes) Converts a 3 byte array of unsigned bytes to unsigned int
static int	bytesToUnsignedShort(byte[] bytes) Converts a 2 byte array of unsigned bytes to unsigned short
static byte[]	convertBigIntegerToNBytes(BigInteger bigInteger, int numBytes) Utility method to convert BigInteger to n element byte array
static byte[]	unsignedIntToBytes(Long unsignedInt) Converts unsigned integer to a 4 byte array of unsigned bytes
static byte[]	unsignedMediumToBytes(Long unsignedInt) Converts unsigned integer to a 3 byte array of unsigned bytes
static byte[]	unsignedShortToBytes(Integer unsignedShort) Converts unsigned short to a 2 byte array of unsigned bytes

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteUtil

public ByteUtil()

Method Detail

bytesToHexstring

public static String bytesToHexstring(byte[] bytes,
                                      String delimiter)

Parameters:

bytes - bytes that needs to be converted to hex

delimiter - string delimiter

Returns:

hexString containing bytes, separated with delimiter

convertBigIntegerToNBytes

public static byte[] convertBigIntegerToNBytes(BigInteger bigInteger,
                                               int numBytes)

Utility method to convert BigInteger to n element byte array

Parameters:

bigInteger - big integer value that needs to be converted to byte

numBytes - convert to number of bytes

Returns:

byte array containing n * 8 bits.

bytesToUnsignedInt

public static final long bytesToUnsignedInt(byte[] bytes)

Converts a 4 byte array of unsigned bytes to unsigned int

Parameters:

bytes - an array of 4 unsigned bytes

Returns:

a long representing the unsigned int

bytesToUnsignedMedium

public static final long bytesToUnsignedMedium(byte[] bytes)

Converts a 3 byte array of unsigned bytes to unsigned int

Parameters:

bytes - an array of 4 unsigned bytes

Returns:

a long representing the unsigned int

bytesToUnsignedShort

public static final int bytesToUnsignedShort(byte[] bytes)

Converts a 2 byte array of unsigned bytes to unsigned short

Parameters:

bytes - an array of 2 unsigned bytes

Returns:

an int representing the unsigned short

unsignedIntToBytes

public static byte[] unsignedIntToBytes(Long unsignedInt)

Converts unsigned integer to a 4 byte array of unsigned bytes

Parameters:

unsignedInt - representing the unsigned integer

Returns:

bytes an array of 4 unsigned bytes

unsignedMediumToBytes

public static byte[] unsignedMediumToBytes(Long unsignedInt)

Converts unsigned integer to a 3 byte array of unsigned bytes

Parameters:

unsignedInt - representing the unsigned integer

Returns:

bytes an array of 3 unsigned bytes

unsignedShortToBytes

public static byte[] unsignedShortToBytes(Integer unsignedShort)

Converts unsigned short to a 2 byte array of unsigned bytes

Parameters:

unsignedShort - representing the unsigned short

Returns:

bytes an array of 2 unsigned bytes