com.epam.common.utils

Class ByteBuffer

java.lang.Object

com.epam.common.utils.ByteBuffer

public final class ByteBuffer
extends Object

The byte buffer helper class.

Field Summary

Fields

Modifier and Type	Field and Description
static int	NO_GROWTH_INCREMENT

Constructor Summary

Constructors

Constructor and Description
ByteBuffer() Creates the ByteBuffer with allocated byte buffer.
ByteBuffer(int length) Creates the ByteBuffer with allocated byte buffer.
ByteBuffer(int length, boolean useNIOBuffer)
ByteBuffer(int length, int growIncrement)
ByteBuffer(int size, int growIncrement, boolean useNIOBuffer)

Method Summary

Modifier and Type	Method and Description
ByteBuffer	add(byte b) Adds byte to buffer.
ByteBuffer	add(byte[] array) Appends the array argument to internal buffer.
ByteBuffer	add(byte[] array, int start, int len) Appends the array argument to internal buffer.
ByteBuffer	add(ByteBuffer buffer)
ByteBuffer	add(ByteBuffer buffer)
ByteBuffer	add(char b) Adds char to buffer.
ByteBuffer	add(String s)
ByteBuffer	addLikeString(long value)
void	checkAndExtend(int length)
static ByteBuffer	demand(int size)
ByteBuffer	flip()
byte	get()
ByteBuffer	get(byte[] dst)
ByteBuffer	get(byte[] dst, int offset, int length)
byte	get(int index)
ByteBuffer	getBuffer()
byte[]	getBulk()
byte[]	getByteArray() Gets internal byte buffer.
byte[]	getByteArray(int position, int length) Gets internal byte buffer.
char	getChar()
char	getChar(int index)
double	getDouble()
double	getDouble(int index)
int	getInt()
int	getInt(int index)
int	getLength() Gets buffer length.
long	getLong()
long	getLong(int index)
ByteBuffer	getNioBuffer()
int	getOffset() Gets buffer offset.
byte[]	getSubArray(int start, int length)
void	increaseBuffer(int increase) Increases the buffer.
boolean	isAvailable(int length) Checks if buffer has a numOfBytes.
boolean	isEmpty()
int	limit()
ByteBuffer	limit(int limit)
int	position()
ByteBuffer	position(int position)
ByteBuffer	put(byte b)
ByteBuffer	put(byte[] src)
ByteBuffer	put(byte[] src, int offset, int length)
ByteBuffer	put(int index, byte b)
ByteBuffer	put(String s)
ByteBuffer	putChar(char value)
ByteBuffer	putChar(int index, char value)
ByteBuffer	putDouble(double value)
ByteBuffer	putDouble(int index, double value)
ByteBuffer	putInAll(int start, int end, byte value)
ByteBuffer	putInt(int value)
ByteBuffer	putInt(int index, int value)
ByteBuffer	putLong(int index, long value)
ByteBuffer	putLong(long value)
void	release()
static void	release(ByteBuffer buffer)
int	remaining()
void	resetBuffer() Resets the buffer.
void	setOffset(int offset) Sets offset of buffer.
static ByteBuffer	wrapBuffer(byte[] buffer)

Methods inherited from class java.lang.Object

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

Field Detail

NO_GROWTH_INCREMENT

public static final int NO_GROWTH_INCREMENT

See Also:

Constant Field Values

Constructor Detail

ByteBuffer

public ByteBuffer()

Creates the ByteBuffer with allocated byte buffer. The default buffer length if 1024 bytes.

ByteBuffer

public ByteBuffer(int length)

Creates the ByteBuffer with allocated byte buffer.

Parameters:

length - allocated buffer length

ByteBuffer

public ByteBuffer(int length,
                  boolean useNIOBuffer)

ByteBuffer

public ByteBuffer(int length,
                  int growIncrement)

ByteBuffer

public ByteBuffer(int size,
                  int growIncrement,
                  boolean useNIOBuffer)

Parameters:

size - buffer size in bytes

growIncrement - grow size in bytes

useNIOBuffer -

Method Detail

getBuffer

public ByteBuffer getBuffer()

addLikeString

public ByteBuffer addLikeString(long value)

checkAndExtend

public void checkAndExtend(int length)

add

public ByteBuffer add(String s)

put

public ByteBuffer put(String s)

add

public ByteBuffer add(byte[] array)

Appends the array argument to internal buffer.

Returns:

a reference to this object.

add

public ByteBuffer add(byte b)

Adds byte to buffer.

Parameters:

b - a byte

add

public ByteBuffer add(char b)

Adds char to buffer.

Parameters:

b - a char

add

public ByteBuffer add(byte[] array,
                      int start,
                      int len)

Appends the array argument to internal buffer.

Returns:

a reference to this object.

add

public ByteBuffer add(ByteBuffer buffer)

add

public ByteBuffer add(ByteBuffer buffer)

isAvailable

public boolean isAvailable(int length)

Checks if buffer has a numOfBytes.

Parameters:

length - the requested space

Returns:

boolean true if has

setOffset

public void setOffset(int offset)

Sets offset of buffer.

Parameters:

offset - the new offset

increaseBuffer

public void increaseBuffer(int increase)

Increases the buffer.

Parameters:

increase - the number of bytes

getByteArray

public byte[] getByteArray()

Gets internal byte buffer.

getByteArray

public byte[] getByteArray(int position,
                           int length)

Gets internal byte buffer.

release

public void release()

limit

public int limit()

limit

public ByteBuffer limit(int limit)

position

public int position()

position

public ByteBuffer position(int position)

put

public ByteBuffer put(byte[] src)

put

public ByteBuffer put(byte b)

get

public byte get()

get

public byte get(int index)

put

public ByteBuffer put(int index,
                      byte b)

put

public ByteBuffer put(byte[] src,
                      int offset,
                      int length)

get

public ByteBuffer get(byte[] dst)

get

public ByteBuffer get(byte[] dst,
                      int offset,
                      int length)

putChar

public ByteBuffer putChar(char value)

putChar

public ByteBuffer putChar(int index,
                          char value)

getChar

public char getChar()

getChar

public char getChar(int index)

putInt

public ByteBuffer putInt(int value)

putInt

public ByteBuffer putInt(int index,
                         int value)

getInt

public int getInt()

getInt

public int getInt(int index)

putLong

public ByteBuffer putLong(long value)

putLong

public ByteBuffer putLong(int index,
                          long value)

getLong

public long getLong()

getLong

public long getLong(int index)

putDouble

public ByteBuffer putDouble(double value)

putDouble

public ByteBuffer putDouble(int index,
                            double value)

getDouble

public double getDouble()

getDouble

public double getDouble(int index)

putInAll

public ByteBuffer putInAll(int start,
                           int end,
                           byte value)

remaining

public int remaining()

flip

public ByteBuffer flip()

demand

public static ByteBuffer demand(int size)

release

public static void release(ByteBuffer buffer)

getNioBuffer

public ByteBuffer getNioBuffer()

resetBuffer

public void resetBuffer()

Resets the buffer.

getOffset

public int getOffset()

Gets buffer offset.

getLength

public int getLength()

Gets buffer length.

Returns:

int length

getBulk

public byte[] getBulk()

isEmpty

public boolean isEmpty()

wrapBuffer

public static ByteBuffer wrapBuffer(byte[] buffer)

getSubArray

public byte[] getSubArray(int start,
                          int length)