com.jme.util.export
Class ByteUtils

java.lang.Object
  com.jme.util.export.ByteUtils

public class ByteUtils
extends java.lang.Object

ByteUtils is a helper class for converting numeric primitives to and from byte representations.

Author:

Joshua Slack

Constructor Summary

ByteUtils()

Method Summary

static boolean	convertBooleanFromBytes(byte[] byteArray)
static boolean	convertBooleanFromBytes(byte[] byteArray, int offset)
static double	convertDoubleFromBytes(byte[] bytes)
static double	convertDoubleFromBytes(byte[] bytes, int offset)
static float	convertFloatFromBytes(byte[] byteArray)
static float	convertFloatFromBytes(byte[] byteArray, int offset)
static int	convertIntFromBytes(byte[] byteArray)
static int	convertIntFromBytes(byte[] byteArray, int offset)
static long	convertLongFromBytes(byte[] bytes)
static long	convertLongFromBytes(byte[] bytes, int offset)
static short	convertShortFromBytes(byte[] byteArray)
static short	convertShortFromBytes(byte[] byteArray, int offset)
static byte[]	convertToBytes(boolean b)
static byte[]	convertToBytes(double n)
static byte[]	convertToBytes(float f)
static byte[]	convertToBytes(int integer)
static byte[]	convertToBytes(long n)
static byte[]	convertToBytes(short value)
static byte[]	getByteContent(java.io.InputStream inputStream) Takes an InputStream and returns the complete byte content of it
static boolean	readBoolean(java.io.InputStream inputStream) Read in a boolean from an InputStream
static byte[]	readData(byte[] store, int bytes, java.io.InputStream is) Properly reads in data from the given stream until the specified number of bytes have been read.
static double	readDouble(java.io.InputStream inputStream) Read in a double from an InputStream
static float	readFloat(java.io.InputStream inputStream) Read in a float from an InputStream
static int	readInt(java.io.InputStream inputStream) Read in an integer from an InputStream
static long	readLong(java.io.InputStream inputStream) Read in a long from an InputStream
static short	readShort(java.io.InputStream inputStream) Read in a short from an InputStream
static byte[]	rightAlignBytes(byte[] bytes, int width)
static void	writeBoolean(java.io.OutputStream outputStream, boolean bVal) Writes a boolean out to an OutputStream.
static void	writeDouble(java.io.OutputStream outputStream, double value) Writes a double out to an OutputStream.
static void	writeFloat(java.io.OutputStream outputStream, float fVal) Writes an float out to an OutputStream.
static void	writeInt(java.io.OutputStream outputStream, int integer) Writes an integer out to an OutputStream.
static void	writeLong(java.io.OutputStream outputStream, long value) Writes a long out to an OutputStream.
static void	writeShort(java.io.OutputStream outputStream, short value) Writes a short out to an OutputStream.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteUtils

public ByteUtils()

Method Detail

getByteContent

public static byte[] getByteContent(java.io.InputStream inputStream)
                             throws java.io.IOException

Takes an InputStream and returns the complete byte content of it

Parameters:

inputStream - The input stream to read from

Returns:

The byte array containing the data from the input stream

Throws:

java.io.IOException - thrown if there is a problem reading from the input stream provided

writeShort

public static void writeShort(java.io.OutputStream outputStream,
                              short value)
                       throws java.io.IOException

Writes a short out to an OutputStream.

Parameters:

outputStream - The OutputStream the short will be written to

value - The short to write

Throws:

java.io.IOException - Thrown if there is a problem writing to the OutputStream

convertToBytes

public static byte[] convertToBytes(short value)

readShort

public static short readShort(java.io.InputStream inputStream)
                       throws java.io.IOException

Read in a short from an InputStream

Parameters:

inputStream - The InputStream used to read the short

Returns:

A short, which is the next 2 bytes converted from the InputStream

Throws:

java.io.IOException - Thrown if there is a problem reading from the InputStream

convertShortFromBytes

public static short convertShortFromBytes(byte[] byteArray)

convertShortFromBytes

public static short convertShortFromBytes(byte[] byteArray,
                                          int offset)

writeInt

public static void writeInt(java.io.OutputStream outputStream,
                            int integer)
                     throws java.io.IOException

Writes an integer out to an OutputStream.

Parameters:

outputStream - The OutputStream the integer will be written to

integer - The integer to write

Throws:

java.io.IOException - Thrown if there is a problem writing to the OutputStream

convertToBytes

public static byte[] convertToBytes(int integer)

readInt

public static int readInt(java.io.InputStream inputStream)
                   throws java.io.IOException

Read in an integer from an InputStream

Parameters:

inputStream - The InputStream used to read the integer

Returns:

An int, which is the next 4 bytes converted from the InputStream

Throws:

java.io.IOException - Thrown if there is a problem reading from the InputStream

convertIntFromBytes

public static int convertIntFromBytes(byte[] byteArray)

convertIntFromBytes

public static int convertIntFromBytes(byte[] byteArray,
                                      int offset)

writeLong

public static void writeLong(java.io.OutputStream outputStream,
                             long value)
                      throws java.io.IOException

Writes a long out to an OutputStream.

Parameters:

outputStream - The OutputStream the long will be written to

value - The long to write

Throws:

java.io.IOException - Thrown if there is a problem writing to the OutputStream

convertToBytes

public static byte[] convertToBytes(long n)

readLong

public static long readLong(java.io.InputStream inputStream)
                     throws java.io.IOException

Read in a long from an InputStream

Parameters:

inputStream - The InputStream used to read the long

Returns:

A long, which is the next 8 bytes converted from the InputStream

Throws:

java.io.IOException - Thrown if there is a problem reading from the InputStream

convertLongFromBytes

public static long convertLongFromBytes(byte[] bytes)

convertLongFromBytes

public static long convertLongFromBytes(byte[] bytes,
                                        int offset)

writeDouble

public static void writeDouble(java.io.OutputStream outputStream,
                               double value)
                        throws java.io.IOException

Writes a double out to an OutputStream.

Parameters:

outputStream - The OutputStream the double will be written to

value - The double to write

Throws:

java.io.IOException - Thrown if there is a problem writing to the OutputStream

convertToBytes

public static byte[] convertToBytes(double n)

readDouble

public static double readDouble(java.io.InputStream inputStream)
                         throws java.io.IOException

Read in a double from an InputStream

Parameters:

inputStream - The InputStream used to read the double

Returns:

A double, which is the next 8 bytes converted from the InputStream

Throws:

java.io.IOException - Thrown if there is a problem reading from the InputStream

convertDoubleFromBytes

public static double convertDoubleFromBytes(byte[] bytes)

convertDoubleFromBytes

public static double convertDoubleFromBytes(byte[] bytes,
                                            int offset)

writeFloat

public static void writeFloat(java.io.OutputStream outputStream,
                              float fVal)
                       throws java.io.IOException

Writes an float out to an OutputStream.

Parameters:

outputStream - The OutputStream the float will be written to

fVal - The float to write

Throws:

java.io.IOException - Thrown if there is a problem writing to the OutputStream

convertToBytes

public static byte[] convertToBytes(float f)

readFloat

public static float readFloat(java.io.InputStream inputStream)
                       throws java.io.IOException

Read in a float from an InputStream

Parameters:

inputStream - The InputStream used to read the float

Returns:

A float, which is the next 4 bytes converted from the InputStream

Throws:

java.io.IOException - Thrown if there is a problem reading from the InputStream

convertFloatFromBytes

public static float convertFloatFromBytes(byte[] byteArray)

convertFloatFromBytes

public static float convertFloatFromBytes(byte[] byteArray,
                                          int offset)

writeBoolean

public static void writeBoolean(java.io.OutputStream outputStream,
                                boolean bVal)
                         throws java.io.IOException

Writes a boolean out to an OutputStream.

Parameters:

outputStream - The OutputStream the boolean will be written to

bVal - The boolean to write

Throws:

java.io.IOException - Thrown if there is a problem writing to the OutputStream

convertToBytes

public static byte[] convertToBytes(boolean b)

readBoolean

public static boolean readBoolean(java.io.InputStream inputStream)
                           throws java.io.IOException

Read in a boolean from an InputStream

Parameters:

inputStream - The InputStream used to read the boolean

Returns:

A boolean, which is the next byte converted from the InputStream (iow, byte != 0)

Throws:

java.io.IOException - Thrown if there is a problem reading from the InputStream

convertBooleanFromBytes

public static boolean convertBooleanFromBytes(byte[] byteArray)

convertBooleanFromBytes

public static boolean convertBooleanFromBytes(byte[] byteArray,
                                              int offset)

readData

public static byte[] readData(byte[] store,
                              int bytes,
                              java.io.InputStream is)
                       throws java.io.IOException

Properly reads in data from the given stream until the specified number of bytes have been read.

Parameters:

store - the byte array to store in. Should have a length > bytes

bytes - the number of bytes to read.

is - the stream to read from

Returns:

the store array for chaining purposes

Throws:

java.io.IOException - if an error occurs while reading from the stream

java.lang.ArrayIndexOutOfBoundsException - if bytes greater than the length of the store.

rightAlignBytes

public static byte[] rightAlignBytes(byte[] bytes,
                                     int width)