org.opendaylight.openflowplugin.openflow.md.util

Class ByteUtil

java.lang.Object

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

public final class ByteUtil
extends Object

Method Summary

Modifier and Type	Method and Description
static String	bytesToHexstring(byte[] bytes, String delimiter) Converts bytes to a hex string.
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

Method Detail

bytesToHexstring

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

Converts bytes to a hex string.

Parameters:

bytes - bytes that needs to be converted to hex

delimiter - string delimiter

Returns:

hexString containing bytes, separated with delimiter

convertBigIntegerToNBytes

@Nullable
public static byte[] convertBigIntegerToNBytes(@Nullable
                                                         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 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 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 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