org.opendaylight.protocol.util

Class ByteArray

java.lang.Object

org.opendaylight.protocol.util.ByteArray

public final class ByteArray
extends Object

Util class for methods working with byte array.

Method Summary

Modifier and Type	Method and Description
static String	bytesToHRString(byte[] bytes) Decodes bytes to human readable UTF-8 string.
static int	bytesToInt(byte[] bytes) Converts byte array to Integer.
static long	bytesToLong(byte[] bytes) Converts byte array to long.
static byte	copyBitsRange(byte src, int fromBit, int length) Copies range of bits from passed byte and align to right.
static byte[]	cutBytes(byte[] bytes, int count) Cuts 'count' number of bytes from the beginning of given byte array.
static String	encodeBase64(io.netty.buffer.ByteBuf buffer) Encode input ByteBuf with Base64 to string format.
static byte[]	fileToBytes(String name) Parses file to array of bytes
static byte[]	getAllBytes(io.netty.buffer.ByteBuf buffer) Helper method missing from netty ByteBuf methods.
static byte[]	getBytes(io.netty.buffer.ByteBuf buffer, int length) Helper method missing from netty ByteBuf methods.
static byte[]	readAllBytes(io.netty.buffer.ByteBuf buffer) Helper method missing from netty ByteBuf methods.
static byte[]	readBytes(io.netty.buffer.ByteBuf buffer, int length) Helper method missing from netty ByteBuf methods.
static byte[]	subByte(byte[] bytes, int startIndex, int length) Returns a new byte array from given byte array, starting at start index with the size of the length parameter.

Methods inherited from class java.lang.Object

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

Method Detail

readBytes

public static byte[] readBytes(io.netty.buffer.ByteBuf buffer,
                               int length)

Helper method missing from netty ByteBuf methods. Directly returns byte array part of the given buffer, starting at reader index, with given length. Increases reader index of the buffer by 'length'.

Parameters:

buffer - ByteBuf from which the bytes are going to be taken

length - length of the returned byte array

Returns:

byte array

readAllBytes

public static byte[] readAllBytes(io.netty.buffer.ByteBuf buffer)

Helper method missing from netty ByteBuf methods. Directly returns all readable bytes from buffer as byte array. Adjusts reader index of the buffer by length of readable bytes in the buffer.

Parameters:

buffer - byteBuf from which the bytes are going to be taken

Returns:

byte array

getBytes

public static byte[] getBytes(io.netty.buffer.ByteBuf buffer,
                              int length)

Helper method missing from netty ByteBuf methods. Directly returns byte array part of the given buffer, starting at reader index, with given length. Does not modify reader or writer index of the buffer.

Parameters:

buffer - ByteBuf from which the bytes are going to be taken

length - length of the returned byte array

Returns:

byte array

getAllBytes

public static byte[] getAllBytes(io.netty.buffer.ByteBuf buffer)

Helper method missing from netty ByteBuf methods. Directly returns all readable bytes from buffer as byte array. Does not modify writer or reader index of the buffer.

Parameters:

buffer - byteBuf from which the bytes are going to be taken

Returns:

byte array

subByte

public static byte[] subByte(byte[] bytes,
                             int startIndex,
                             int length)

Returns a new byte array from given byte array, starting at start index with the size of the length parameter. Byte array given as parameter stays untouched.

Parameters:

bytes - original byte array

startIndex - beginning index, inclusive

length - how many bytes should be in the sub-array

Returns:

a new byte array that is a sub-array of the original

bytesToInt

public static int bytesToInt(byte[] bytes)

Converts byte array to Integer. If there are less bytes in the array as required (4), the method will push adequate number of zero bytes prepending given byte array.

Parameters:

bytes - array to be converted to int

Returns:

int

bytesToLong

public static long bytesToLong(byte[] bytes)

Converts byte array to long. If there are less bytes in the array as required (Long.Size), the method will push adequate number of zero bytes prepending given byte array.

Parameters:

bytes - array to be converted to long

Returns:

long

cutBytes

public static byte[] cutBytes(byte[] bytes,
                              int count)

Cuts 'count' number of bytes from the beginning of given byte array.

Parameters:

bytes - array to be cut, cannot be null

count - how many bytes needed to be cut, needs to be greater than 0

Returns:

bytes array without first 'count' bytes

fileToBytes

public static byte[] fileToBytes(String name)
                          throws IOException

Parses file to array of bytes

Parameters:

name - path to file to by parsed

Returns:

parsed array of bytes

Throws:

IOException

copyBitsRange

public static byte copyBitsRange(byte src,
                                 int fromBit,
                                 int length)

Copies range of bits from passed byte and align to right.

Parameters:

src - source byte to copy from

fromBit - bit from which will copy (inclusive) - numbered from 0

length - of bits to by copied, valid values are 1 through 8

Returns:

copied value aligned to right

bytesToHRString

public static String bytesToHRString(byte[] bytes)

Decodes bytes to human readable UTF-8 string. If bytes are not valid UTF-8, they are represented as raw binary.

Parameters:

bytes - bytes to be decoded to string

Returns:

String representation of passed bytes

encodeBase64

public static String encodeBase64(io.netty.buffer.ByteBuf buffer)

Encode input ByteBuf with Base64 to string format.

Parameters:

buffer - Input ByteBuf

Returns:

String representation of encoded ByteBuf.