com.prosysopc.ua.stack.encoding.binary

Class ByteUtils

java.lang.Object

com.prosysopc.ua.stack.encoding.binary.ByteUtils

public class ByteUtils
extends Object

Internal helper for byte operations, but used from multiple packages.

Method Summary

Modifier and Type	Method and Description
static int	bytesToInt(byte[] value, ByteOrder byteOrder) Convert the given 4-byte array to int.
static long	bytesToLong(byte[] value, ByteOrder byteOrder) Convert the given 8-byte array to long.
static short	bytesToShort(byte[] value, ByteOrder byteOrder) Convert the given 2-byte array to short.
static byte[]	concat(byte[] first, byte[] second) Returns byte-array that has the contents of first and (then) second parameter.
static byte[]	intToBytes(int value, ByteOrder byteOrder) Returns byte-array-representation of the given int.
static boolean	isNullOrEmpty(byte[] data) Returns true if given data is null or it's length is equal to 0, false otherwise.
static byte[]	longToBytes(long value, ByteOrder byteOrder) Returns byte-array-representation of the given long.
static byte[]	reverse(byte[] data) Returns byte-arrary (or null if given null) with reversed (last index is now first etc.) contents.
static byte[]	shortToBytes(short value, ByteOrder byteOrder) Returns byte-array-representation of the given int.
static byte[]	writeInt(int source, byte[] target, int index, ByteOrder byteOrder) Writes the given int to the given target byte[] starting from the given index.
static byte[]	writeLong(long source, byte[] target, int index, ByteOrder byteOrder) Writes the given long to the given target byte[] starting from the given index.
static byte[]	writeShort(short source, byte[] target, int index, ByteOrder byteOrder) Writes the given short to the given target byte[] starting from the given index.

Methods inherited from class java.lang.Object

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

Method Detail

bytesToInt

public static int bytesToInt(byte[] value,
                             ByteOrder byteOrder)

Convert the given 4-byte array to int.

bytesToLong

public static long bytesToLong(byte[] value,
                               ByteOrder byteOrder)

Convert the given 8-byte array to long.

bytesToShort

public static short bytesToShort(byte[] value,
                                 ByteOrder byteOrder)

Convert the given 2-byte array to short.

concat

public static byte[] concat(byte[] first,
                            byte[] second)

Returns byte-array that has the contents of first and (then) second parameter.

intToBytes

public static byte[] intToBytes(int value,
                                ByteOrder byteOrder)

Returns byte-array-representation of the given int.

isNullOrEmpty

public static boolean isNullOrEmpty(byte[] data)

Returns true if given data is null or it's length is equal to 0, false otherwise.

longToBytes

public static byte[] longToBytes(long value,
                                 ByteOrder byteOrder)

Returns byte-array-representation of the given long.

reverse

public static byte[] reverse(byte[] data)

Returns byte-arrary (or null if given null) with reversed (last index is now first etc.) contents.

shortToBytes

public static byte[] shortToBytes(short value,
                                  ByteOrder byteOrder)

Returns byte-array-representation of the given int.

writeInt

public static byte[] writeInt(int source,
                              byte[] target,
                              int index,
                              ByteOrder byteOrder)

Writes the given int to the given target byte[] starting from the given index. Returns the target buffer.

writeLong

public static byte[] writeLong(long source,
                               byte[] target,
                               int index,
                               ByteOrder byteOrder)

Writes the given long to the given target byte[] starting from the given index. Returns the target buffer.

writeShort

public static byte[] writeShort(short source,
                                byte[] target,
                                int index,
                                ByteOrder byteOrder)

Writes the given short to the given target byte[] starting from the given index. Returns the target buffer.