Package morfologik.stemming

Class BufferUtils

java.lang.Object

morfologik.stemming.BufferUtils

public final class BufferUtils
extends Object

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BufferUtils()	No instances.

Method Summary

Modifier and Type	Method	Description
static CharBuffer	bytesToChars(CharsetDecoder decoder, ByteBuffer bytes, CharBuffer chars)	Convert byte buffer's content into characters.
static ByteBuffer	charsToBytes(CharsetEncoder encoder, CharBuffer chars, ByteBuffer bytes)	Convert chars into bytes.
static ByteBuffer	clearAndEnsureCapacity(ByteBuffer buffer, int elements)	Ensure the buffer's capacity is large enough to hold a given number of elements.
static CharBuffer	clearAndEnsureCapacity(CharBuffer buffer, int elements)	Ensure the buffer's capacity is large enough to hold a given number of elements.
(package private) static int	sharedPrefixLength(ByteBuffer a, int aStart, ByteBuffer b, int bStart)	Compute the length of the shared prefix between two byte sequences.
(package private) static int	sharedPrefixLength(ByteBuffer a, ByteBuffer b)	Compute the length of the shared prefix between two byte sequences.
static byte[]	toArray(ByteBuffer buffer)
static String	toString(ByteBuffer buffer, Charset charset)
static String	toString(CharBuffer buffer)

Methods inherited from class java.lang.Object

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

Constructor Details

BufferUtils

private BufferUtils()

No instances.

Method Details

clearAndEnsureCapacity

public static ByteBuffer clearAndEnsureCapacity(ByteBuffer buffer,
 int elements)

Ensure the buffer's capacity is large enough to hold a given number of elements. If the input buffer is not large enough, a new buffer is allocated and returned.

Parameters:

buffer - The buffer to check or null if a new buffer should be allocated.

elements - The required number of elements to be appended to the buffer.

Returns:

Returns the same buffer or a new buffer with the given capacity.

clearAndEnsureCapacity

public static CharBuffer clearAndEnsureCapacity(CharBuffer buffer,
 int elements)

Ensure the buffer's capacity is large enough to hold a given number of elements. If the input buffer is not large enough, a new buffer is allocated and returned.

Parameters:

buffer - The buffer to check or null if a new buffer should be allocated.

elements - The required number of elements to be appended to the buffer.

Returns:

Returns the same buffer or a new buffer with the given capacity.

toString

public static String toString(ByteBuffer buffer,
 Charset charset)

Parameters:

buffer - The buffer to convert to a string.

charset - The charset to use when converting bytes to characters.

Returns:

A string representation of buffer's content.

toString

public static String toString(CharBuffer buffer)

toArray

public static byte[] toArray(ByteBuffer buffer)

Parameters:

buffer - The buffer to read from.

Returns:

Returns the remaining bytes from the buffer copied to an array.

sharedPrefixLength

static int sharedPrefixLength(ByteBuffer a,
 int aStart,
 ByteBuffer b,
 int bStart)

Compute the length of the shared prefix between two byte sequences.

sharedPrefixLength

static int sharedPrefixLength(ByteBuffer a,
 ByteBuffer b)

Compute the length of the shared prefix between two byte sequences.

bytesToChars

public static CharBuffer bytesToChars(CharsetDecoder decoder,
 ByteBuffer bytes,
 CharBuffer chars)

Convert byte buffer's content into characters. The input buffer's bytes are not consumed (mark is set and reset).

charsToBytes

public static ByteBuffer charsToBytes(CharsetEncoder encoder,
 CharBuffer chars,
 ByteBuffer bytes)
                               throws UnmappableInputException

Convert chars into bytes.

Throws:

UnmappableInputException