org.torweg.pulse.util.io
Class ByteUtils

java.lang.Object
  org.torweg.pulse.util.io.ByteUtils

public final class ByteUtils
extends java.lang.Object

provides methods to convert Java primitive types to a byte array representation and vice versa.

Internally it uses DataInputStream and DataOutputStream to do the conversions.

Version:

$Revision: 2022 $

Author:

Thomas Weber

Nested Class Summary

static class

ByteUtils.ByteFormatException indicates an exception converting a byte array back to a primitive type.

Method Summary

static byte[]	getBytes(double d) returns the double as four bytes (internally converting the double to a long using Double.doubleToLongBits(double)), high byte first.
static byte[]	getBytes(float f) returns the float as four bytes (internally converting the float to an int using Float.floatToIntBits(float)), high byte first.
static byte[]	getBytes(int i) returns the int as four bytes, high byte first.
static byte[]	getBytes(long l) returns the long as eight bytes, high byte first.
static double	getDouble(byte[] b) returns the first eight bytes of the given byte array as a double, (internally converting the double to a long using Double.longBitsToDouble(long)), high byte first.
static float	getFloat(byte[] b) returns the first four bytes of the given byte array as an float , (internally converting the float to an int using Float.intBitsToFloat(int)), high byte first.
static int	getInt(byte[] b) returns the first four bytes of the given byte array as an int (high byte first).
static long	getLong(byte[] b) returns the first four bytes of the given byte array as an int (high byte first).

Methods inherited from class java.lang.Object

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

Method Detail

getBytes

public static byte[] getBytes(int i)

returns the int as four bytes, high byte first.

Parameters:

i - the int

Returns:

a four byte array

getInt

public static int getInt(byte[] b)

returns the first four bytes of the given byte array as an int (high byte first).

Parameters:

b - the byte array

Returns:

an int

getBytes

public static byte[] getBytes(long l)

returns the long as eight bytes, high byte first.

Parameters:

l - the long

Returns:

an eight byte array

getLong

public static long getLong(byte[] b)

returns the first four bytes of the given byte array as an int (high byte first).

Parameters:

b - the byte array

Returns:

an int

getBytes

public static byte[] getBytes(float f)

returns the float as four bytes (internally converting the float to an int using Float.floatToIntBits(float)), high byte first.

Parameters:

f - the float

Returns:

a four byte array

getFloat

public static float getFloat(byte[] b)

returns the first four bytes of the given byte array as an float , (internally converting the float to an int using Float.intBitsToFloat(int)), high byte first.

Parameters:

b - the byte array

Returns:

an int

getBytes

public static byte[] getBytes(double d)

returns the double as four bytes (internally converting the double to a long using Double.doubleToLongBits(double)), high byte first.

Parameters:

d - the double

Returns:

an eight byte array

getDouble

public static double getDouble(byte[] b)

returns the first eight bytes of the given byte array as a double, (internally converting the double to a long using Double.longBitsToDouble(long)), high byte first.

Parameters:

b - the byte array

Returns:

a double