j3deditor.bin.util
Class ByteConverter

java.lang.Object
  j3deditor.bin.util.ByteConverter

public class ByteConverter
extends java.lang.Object

Tool for converting numbers to byte arrays and vice versa.

Author:

Risto Seene

Constructor Summary

ByteConverter()

Method Summary

static byte[]	getBytes(float nr) Encodes the given float into a sequence of bytes.
static byte[]	getBytes(int nr) Encodes the given int into a sequence of bytes.
static byte[]	getBytes(java.lang.String s) Encodes the given String into a sequence of bytes using the "utf-8" charset.
static boolean	isFlagSet(int allFlags, int theFlag) Tests if the given flag is present.
static java.util.BitSet	toBits(byte[] bytes) Returns the bits of the given array of bytes.
static byte[]	toBytes(java.util.BitSet bits) Returns the given bits as the array of bytes.
static float	toFloat(byte[] bytes) Decodes the specified array of bytes to float.
static int	toInt(byte[] bytes) Decodes the specified array of bytes to int.
static java.lang.String	toString(byte[] bytes) Decodes the specified array of bytes to String using "utf-8" charset.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteConverter

public ByteConverter()

Method Detail

getBytes

public static byte[] getBytes(int nr)

Encodes the given int into a sequence of bytes.

Parameters:

nr - integer to be encoded

Returns:

Returns bytes of the given int

getBytes

public static byte[] getBytes(float nr)

Encodes the given float into a sequence of bytes.

Parameters:

nr - float to be encoded

Returns:

Returns bytes of the given float

getBytes

public static byte[] getBytes(java.lang.String s)

Encodes the given String into a sequence of bytes using the "utf-8" charset.

Parameters:

s - string to be encoded

Returns:

Returns bytes of the given String

toInt

public static int toInt(byte[] bytes)
                 throws java.lang.Exception

Decodes the specified array of bytes to int.

Parameters:

bytes - byte array to convert

Returns:

Returns integer converted from bytes

Throws:

java.lang.Exception - IllegalArgumentException if the length of the given array is not equal to 4,
NullPointerException if the given array is null

toFloat

public static float toFloat(byte[] bytes)
                     throws java.lang.Exception

Decodes the specified array of bytes to float.

Parameters:

bytes - byte array to convert

Returns:

Returns float converted from bytes

Throws:

java.lang.Exception - IllegalArgumentException if the length of the given array is not equal to 4,
NullPointerException if the given array is null

toString

public static java.lang.String toString(byte[] bytes)
                                 throws java.lang.Exception

Decodes the specified array of bytes to String using "utf-8" charset.

Parameters:

bytes - array of bytes to be decoded

Returns:

Returns the decoded String

Throws:

java.lang.Exception - if unable to decode the given array

toBits

public static java.util.BitSet toBits(byte[] bytes)

Returns the bits of the given array of bytes.

Parameters:

bytes - bytes which bits will be returned

Returns:

Returns the bits of the given array of bytes

toBytes

public static byte[] toBytes(java.util.BitSet bits)

Returns the given bits as the array of bytes.

Parameters:

bits - bits that will be converted to an array of bytes

Returns:

Returns the given bits as the array of bytes

isFlagSet

public static boolean isFlagSet(int allFlags,
                                int theFlag)

Tests if the given flag is present.

Parameters:

allFlags - flags that are bitwise OR'ed together

theFlag - wanted flag

Returns:

Returns true if the given flag is set, otherwise false