io.pkts.buffer

Class Buffers

java.lang.Object

io.pkts.buffer.Buffers

public final class Buffers
extends Object

Author:

jonas@jonasborjesson.com

Field Summary

Fields

Modifier and Type	Field and Description
static Buffer	EMPTY_BUFFER An empty buffer.

Method Summary

Modifier and Type	Method and Description
static void	assertNotEmpty(Buffer buffer)
static void	assertNotEmpty(Buffer buffer, String msg)
static Buffer	createBuffer(int capacity) Create a new Buffer
static void	getBytes(int i, int index, byte[] buf) Copied straight from the Integer class but modified to return bytes instead.
static void	getBytes(long i, int index, byte[] buf) Copied straight from the Long class but modified to return bytes instead.
static int	stringSize(int x)
static int	stringSize(long x)
static int	stringSizeOf(int value) Find out how many characters it would take to represent the value as a string.
static int	stringSizeOf(long value) Find out how many characters it would take to represent the value as a string.
static Buffer	wrap(Buffer one, Buffer two) Combine two buffers into one.
static Buffer	wrap(byte[] buffer) Wrap the supplied byte array
static Buffer	wrap(byte[] buffer, int lowerBoundary, int upperBoundary) Wrap the supplied byte array specifying the allowed range of visible bytes.
static Buffer	wrap(InputStream is)
static Buffer	wrap(int value) Converts the integer value into a string and that is what is being wrapped in a Buffer
static Buffer	wrap(long value)
static Buffer	wrap(String s)
static Buffer	wrapAndClone(byte[] buffer) Same as wrap(byte[]) but we will clone the byte array first.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_BUFFER

public static Buffer EMPTY_BUFFER

An empty buffer.

Method Detail

wrap

public static Buffer wrap(int value)

Converts the integer value into a string and that is what is being wrapped in a Buffer

Parameters:

value -

Returns:

wrap

public static Buffer wrap(long value)

wrap

public static Buffer wrap(String s)

wrap

public static Buffer wrap(InputStream is)

createBuffer

public static Buffer createBuffer(int capacity)

Create a new Buffer

Parameters:

capacity -

Returns:

wrap

public static Buffer wrap(byte[] buffer)

Wrap the supplied byte array

Parameters:

buffer -

Returns:

wrapAndClone

public static Buffer wrapAndClone(byte[] buffer)

Same as wrap(byte[]) but we will clone the byte array first.

Parameters:

buffer -

Returns:

wrap

public static Buffer wrap(Buffer one,
                          Buffer two)

Combine two buffers into one. The resulting buffer will share the underlying byte storage so changing the value in one will affect the other. However, the original two buffers will still have their own reader and writer index.

Parameters:

one -

two -

Returns:

wrap

public static Buffer wrap(byte[] buffer,
                          int lowerBoundary,
                          int upperBoundary)

Wrap the supplied byte array specifying the allowed range of visible bytes.

Parameters:

buffer -

lowerBoundary - the index of the lowest byte that is accessible to this Buffer (zero based index)

upperBoundary - the upper boundary (exclusive) of the range of visible bytes.

Returns:

assertNotEmpty

public static void assertNotEmpty(Buffer buffer)

assertNotEmpty

public static void assertNotEmpty(Buffer buffer,
                                  String msg)

getBytes

public static void getBytes(int i,
                            int index,
                            byte[] buf)

Copied straight from the Integer class but modified to return bytes instead. Places characters representing the integer i into the character array buf. The characters are placed into the buffer backwards starting with the least significant digit at the specified index (exclusive), and working backwards from there. Will fail if i == Integer.MIN_VALUE

stringSizeOf

public static int stringSizeOf(int value)

Find out how many characters it would take to represent the value as a string.

Parameters:

value -

Returns:

stringSize

public static int stringSize(int x)

getBytes

public static void getBytes(long i,
                            int index,
                            byte[] buf)

Copied straight from the Long class but modified to return bytes instead. Places characters representing the integer i into the character array buf. The characters are placed into the buffer backwards starting with the least significant digit at the specified index (exclusive), and working backwards from there. Will fail if i == Long.MIN_VALUE

stringSizeOf

public static int stringSizeOf(long value)

Find out how many characters it would take to represent the value as a string.

Parameters:

value -

Returns:

stringSize

public static int stringSize(long x)