Package org.ldaptive.asn1

Class DefaultDERBuffer

java.lang.Object

org.ldaptive.asn1.DefaultDERBuffer

All Implemented Interfaces:

DERBuffer

public class DefaultDERBuffer
extends Object
implements DERBuffer

DERBuffer that uses a ByteBuffer.

Field Summary

Fields

Modifier and Type	Field	Description
private final ByteBuffer	buffer	Underlying byte buffer.

Constructor Summary

Constructors

Constructor	Description
DefaultDERBuffer(byte[] array)	Creates a new default DER buffer.
DefaultDERBuffer(ByteBuffer buf)	Creates a new default DER buffer.
DefaultDERBuffer(ByteBuffer buf, int pos, int lim)	Creates a new default DER buffer and sets the initial position and limit.

Method Summary

Modifier and Type	Method	Description
int	capacity()	Returns this buffer's capacity.
DERBuffer	clear()	Sets the position to zero and the limit to the capacity.
byte	get()	Relative get method.
DERBuffer	get(byte[] dst)	Relative bulk get method.
int	limit()	Returns this buffer's limit.
DERBuffer	limit(int newLimit)	Sets this buffer's limit.
int	position()	Returns this buffer's position.
DERBuffer	position(int newPosition)	Sets this buffer's position.
DERBuffer	positionAndLimit(int newPosition, int newLimit)	Sets this buffer's position and limit at the same time.
DERBuffer	slice()	Creates a new DER buffer whose content is a shared sub-sequence of this buffer's content.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ldaptive.asn1.DERBuffer

getRemainingBytes, hasRemaining, remaining

Field Details

buffer

private final ByteBuffer buffer

Underlying byte buffer.

Constructor Details

DefaultDERBuffer

public DefaultDERBuffer(byte[] array)

Creates a new default DER buffer. See ByteBuffer.wrap(byte[]).

Parameters:

array - contents of the buffer

DefaultDERBuffer

public DefaultDERBuffer(ByteBuffer buf)

Creates a new default DER buffer.

Parameters:

buf - existing byte buffer

DefaultDERBuffer

public DefaultDERBuffer(ByteBuffer buf,
 int pos,
 int lim)

Creates a new default DER buffer and sets the initial position and limit.

Parameters:

buf - existing byte buffer

pos - initial buffer position

lim - initial buffer limit

Method Details

position

public int position()

Description copied from interface: DERBuffer

Returns this buffer's position.

Specified by:

position in interface DERBuffer

Returns:

position of this buffer

position

public DERBuffer position(int newPosition)

Description copied from interface: DERBuffer

Sets this buffer's position.

Specified by:

position in interface DERBuffer

Parameters:

newPosition - The new position value; must be non-negative and no larger than the current limit

Returns:

This buffer

limit

public int limit()

Description copied from interface: DERBuffer

Returns this buffer's limit.

Specified by:

limit in interface DERBuffer

Returns:

limit of this buffer

capacity

public int capacity()

Description copied from interface: DERBuffer

Returns this buffer's capacity.

Specified by:

capacity in interface DERBuffer

Returns:

capacity of this buffer

limit

public DERBuffer limit(int newLimit)

Description copied from interface: DERBuffer

Sets this buffer's limit.

Specified by:

limit in interface DERBuffer

Parameters:

newLimit - The new limit value; must be non-negative and no larger than this buffer's capacity

Returns:

This buffer

positionAndLimit

public DERBuffer positionAndLimit(int newPosition,
 int newLimit)

Description copied from interface: DERBuffer

Sets this buffer's position and limit at the same time. Different buffer implementations may impose different constraints when moving both the position and limit indexes at the same time. Consequently, you may not be able to chain the DERBuffer.position(int) and DERBuffer.limit(int) methods correctly for all implementations.

Specified by:

positionAndLimit in interface DERBuffer

Parameters:

newPosition - The new position value; must be non-negative and no larger than the current limit

newLimit - The new limit value; must be non-negative and no larger than this buffer's capacity

Returns:

This buffer

clear

public DERBuffer clear()

Description copied from interface: DERBuffer

Sets the position to zero and the limit to the capacity.

This method does not actually erase the data in the buffer.

Specified by:

clear in interface DERBuffer

Returns:

This buffer

get

public byte get()

Description copied from interface: DERBuffer

Relative get method. Reads the byte at this buffer's current position and then increments the position.

Specified by:

get in interface DERBuffer

Returns:

byte at the buffer's current position

get

public DERBuffer get(byte[] dst)

Description copied from interface: DERBuffer

Relative bulk get method.

Specified by:

get in interface DERBuffer

Parameters:

dst - destination array

Returns:

This buffer

slice

public DERBuffer slice()

Description copied from interface: DERBuffer

Creates a new DER buffer whose content is a shared sub-sequence of this buffer's content.

The content of the new buffer will start at this buffer's current position. Changes to this buffer's content will be visible in the new buffer, and vice versa; the two buffers' position and limit will be independent.

The new buffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this buffer.

Specified by:

slice in interface DERBuffer

Returns:

The new byte buffer

toString

public String toString()

Overrides:

toString in class Object