Package de.linusdev.lutils.struct.utils

Class BufferUtils

java.lang.Object

de.linusdev.lutils.struct.utils.BufferUtils

public class BufferUtils
extends Object

Util class for creating, slicing and aligning Buffer

Constructor Summary

Constructors

Constructor	Description
BufferUtils()

Method Summary

Modifier and Type	Method	Description
static @NotNull ByteBuffer	createAligned(int capacity, long alignment)	creates an aligned direct ByteBuffer
static long	getHeapAddress(@NotNull ByteBuffer buffer)
static @NotNull String	readString(@NotNull ByteBuffer str, boolean endsWithZero)	The string must fill the whole ByteBuffer.
static @NotNull ByteBuffer	slice(@NotNull ByteBuffer buffer, int start, int length)	Works the same as the java 13 Buffer.slice(int, int) method.

Methods inherited from class java.lang.Object

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

Constructor Details

BufferUtils

public BufferUtils()

Method Details

createAligned

@NotNull
public static @NotNull ByteBuffer createAligned(int capacity,
 long alignment)

creates an aligned direct ByteBuffer

Parameters:

capacity - the capacity of the buffer

alignment - the alignment of the buffer address

Returns:

an aligned buffer with given capacity

getHeapAddress

public static long getHeapAddress(@NotNull
 @NotNull ByteBuffer buffer)

Parameters:

buffer - ByteBuffer to get the address of

Returns:

the address of given buffer

readString

@NotNull
public static @NotNull String readString(@NotNull
 @NotNull ByteBuffer str,
 boolean endsWithZero)

The string must fill the whole ByteBuffer.

Parameters:

str - ByteBuffer containing the string

endsWithZero - true if the string ends with a 0 character (this character will then be removed.)

Returns:

String

slice

@NotNull
public static @NotNull ByteBuffer slice(@NotNull
 @NotNull ByteBuffer buffer,
 int start,
 int length)

Works the same as the java 13 Buffer.slice(int, int) method.

Parameters:

buffer - ByteBuffer to slice

start - start pos

length - index

Returns:

slice of given buffer