com.inductiveautomation.opcua.util

Class ByteUtilities

java.lang.Object

com.inductiveautomation.opcua.util.ByteUtilities

public class ByteUtilities
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ByteUtilities()

Method Summary

Modifier and Type	Method and Description
static int	byteToShortUnsigned(byte b)
static int	compareInt(int i1, int i2)
static int	compareUnsigned(short b1, short b2) Compares two unsigned shorts.
static byte[]	getBit(boolean value, int length, java.nio.ByteOrder order) Converts a boolean into a byte array of length length.
static java.lang.Boolean	getBit(byte[] buf, int offset, int length, int bit, java.nio.ByteOrder order) Returns bit bit from a byte array of length length.
static short	getBitPosition(long mask) Gets the first bit's position that is high from the mask.
static float	getFloat4(byte[] buf, int offset, java.nio.ByteOrder order) Parses 4 bytes from a byte array, starting at the offset, into a float.
static byte[]	getFloat4(float value, java.nio.ByteOrder order) Converts a float into a byte array of length 4.
static double	getFloat8(byte[] buf, int offset, java.nio.ByteOrder order) Parses 8 bytes from a byte array, starting at the offset, into a double.
static byte[]	getFloat8(double value, java.nio.ByteOrder order) Converts a double into a byte array of length 8.
static short	getInt1(byte[] buf, int offset) Parses 1 byte from a byte array, starting at the offset, into a short.
static byte[]	getInt1(int value) Converts an integer into a byte array of length 1.
static short	getInt2(byte[] buf, int offset, java.nio.ByteOrder order) Parses 2 bytes from a byte array, starting at the offset, into a short.
static byte[]	getInt2(int value, java.nio.ByteOrder order) Converts an integer into a byte array of length 2.
static int	getInt4(byte[] buf, int offset, java.nio.ByteOrder order) Parses 4 bytes from a byte array, starting at the offset, into an integer.
static byte[]	getInt4(int value, java.nio.ByteOrder order) Converts an integer into a byte array of length 4.
static long	getInt8(byte[] buf, int offset, java.nio.ByteOrder order) Parses 8 bytes from a byte array, starting at the offset, into a long.
static byte[]	getInt8(long value, java.nio.ByteOrder order) Converts an long into a byte array of length 8.
static java.lang.String	getString(byte[] buf, int offset, int length, java.nio.ByteOrder order) Parses length bytes from a byte array, starting at the offset, into a string.
static byte[]	getString(java.lang.String value, int length, int offset, java.nio.ByteOrder order) Converts a string into a byte array of length length.
static java.lang.String	toAsciiString(byte[] buf) Converts a byte array into an ASCII string.
static java.lang.String	toString(byte buf) Converts a byte to a hex string
static java.lang.String	toString(byte[] buf) Converts a byte array into a hex string
static java.lang.String	toString(java.nio.ByteBuffer... bufs) Converts multiple byte arrays into a hex string

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteUtilities

public ByteUtilities()

Method Detail

getInt1

public static short getInt1(byte[] buf,
                            int offset)

Parses 1 byte from a byte array, starting at the offset, into a short. Uses the given byte order.

getInt1

public static byte[] getInt1(int value)

Converts an integer into a byte array of length 1. Uses the given byte order.

getInt2

public static short getInt2(byte[] buf,
                            int offset,
                            java.nio.ByteOrder order)

Parses 2 bytes from a byte array, starting at the offset, into a short. Uses the given byte order.

getInt2

public static byte[] getInt2(int value,
                             java.nio.ByteOrder order)

Converts an integer into a byte array of length 2. Uses the given byte order.

getInt4

public static int getInt4(byte[] buf,
                          int offset,
                          java.nio.ByteOrder order)

Parses 4 bytes from a byte array, starting at the offset, into an integer. Uses the given byte order.

getInt4

public static byte[] getInt4(int value,
                             java.nio.ByteOrder order)

Converts an integer into a byte array of length 4. Uses the given byte order.

getInt8

public static long getInt8(byte[] buf,
                           int offset,
                           java.nio.ByteOrder order)

Parses 8 bytes from a byte array, starting at the offset, into a long. Uses the given byte order.

getInt8

public static byte[] getInt8(long value,
                             java.nio.ByteOrder order)

Converts an long into a byte array of length 8. Uses the given byte order.

getFloat4

public static float getFloat4(byte[] buf,
                              int offset,
                              java.nio.ByteOrder order)

Parses 4 bytes from a byte array, starting at the offset, into a float. Uses the given byte order.

getFloat4

public static byte[] getFloat4(float value,
                               java.nio.ByteOrder order)

Converts a float into a byte array of length 4. Uses the given byte order.

getFloat8

public static double getFloat8(byte[] buf,
                               int offset,
                               java.nio.ByteOrder order)

Parses 8 bytes from a byte array, starting at the offset, into a double. Uses the given byte order.

getFloat8

public static byte[] getFloat8(double value,
                               java.nio.ByteOrder order)

Converts a double into a byte array of length 8. Uses the given byte order.

getString

public static java.lang.String getString(byte[] buf,
                                         int offset,
                                         int length,
                                         java.nio.ByteOrder order)

Parses length bytes from a byte array, starting at the offset, into a string. Assumes every two characters are swapped if byte order is given.

getString

public static byte[] getString(java.lang.String value,
                               int length,
                               int offset,
                               java.nio.ByteOrder order)

Converts a string into a byte array of length length. Assumes every two characters are swapped if byte order is given.

getBit

public static java.lang.Boolean getBit(byte[] buf,
                                       int offset,
                                       int length,
                                       int bit,
                                       java.nio.ByteOrder order)

Returns bit bit from a byte array of length length. Uses the given byte order.

getBit

public static byte[] getBit(boolean value,
                            int length,
                            java.nio.ByteOrder order)

Converts a boolean into a byte array of length length. Uses the given byte order.

getBitPosition

public static short getBitPosition(long mask)

Gets the first bit's position that is high from the mask.

toString

public static java.lang.String toString(byte buf)

Converts a byte to a hex string

toString

public static java.lang.String toString(byte[] buf)

Converts a byte array into a hex string

toAsciiString

public static java.lang.String toAsciiString(byte[] buf)

Converts a byte array into an ASCII string. If the character is unknown, the hex value is given.

toString

public static java.lang.String toString(java.nio.ByteBuffer... bufs)

Converts multiple byte arrays into a hex string

compareUnsigned

public static int compareUnsigned(short b1,
                                  short b2)

Compares two unsigned shorts. Returns -1 if b1 is smaller, 0 if equal, 1 if larger.

compareInt

public static int compareInt(int i1,
                             int i2)

byteToShortUnsigned

public static int byteToShortUnsigned(byte b)