org.jmrtd.io

Class FragmentBuffer

java.lang.Object

org.jmrtd.io.FragmentBuffer

All Implemented Interfaces:

java.io.Serializable

public class FragmentBuffer
extends java.lang.Object
implements java.io.Serializable

A buffer that can be partially filled.

Version:

$Revision: 1559 $

Author:

Martijn Oostdijk ([email protected])

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FragmentBuffer.Fragment Fragments encapsulate pairs of offset and length.

Constructor Summary

Constructors

Constructor and Description
FragmentBuffer() Creates a fragment buffer.
FragmentBuffer(int length) Creates a fragment buffer.

Method Summary

Modifier and Type	Method and Description
void	addFragment(int offset, byte b)
void	addFragment(int offset, byte[] bytes) Adds a fragment of bytes at a specific offset to this file.
void	addFragment(int offset, byte[] bytes, int srcOffset, int srcLength) Adds a fragment of bytes at a specific offset to this file.
boolean	equals(java.lang.Object otherObject)
byte[]	getBuffer()
int	getBufferedLength(int index) Calculates the number of bytes left in the buffer starting from index index.
int	getBytesBuffered()
java.util.Collection<FragmentBuffer.Fragment>	getFragments()
int	getLength()
int	getPosition()
FragmentBuffer.Fragment	getSmallestUnbufferedFragment(int offset, int length) Gets the smallest fragment that contains offset and offset + length that has not been buffered in this buffer.
int	hashCode()
boolean	isCoveredByFragment(int offset)
boolean	isCoveredByFragment(int offset, int length)
java.lang.String	toString()
void	updateFrom(FragmentBuffer other)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FragmentBuffer

public FragmentBuffer()

Creates a fragment buffer.

FragmentBuffer

public FragmentBuffer(int length)

Creates a fragment buffer.

Parameters:

length - the length of the buffer

Method Detail

updateFrom

public void updateFrom(FragmentBuffer other)

addFragment

public void addFragment(int offset,
                        byte b)

addFragment

public void addFragment(int offset,
                        byte[] bytes)

Adds a fragment of bytes at a specific offset to this file.

Parameters:

offset - the fragment offset

bytes - the bytes from which fragment content will be copied

addFragment

public void addFragment(int offset,
                        byte[] bytes,
                        int srcOffset,
                        int srcLength)

Adds a fragment of bytes at a specific offset to this file.

Parameters:

offset - the fragment offset

bytes - the bytes from which fragment contents will be copied

srcOffset - the offset within bytes where the contents of the fragment start

srcLength - the length of the fragment

getPosition

public int getPosition()

getBytesBuffered

public int getBytesBuffered()

isCoveredByFragment

public boolean isCoveredByFragment(int offset)

isCoveredByFragment

public boolean isCoveredByFragment(int offset,
                                   int length)

getBufferedLength

public int getBufferedLength(int index)

Calculates the number of bytes left in the buffer starting from index index.

Parameters:

index - the index

Returns:

the number of bytes left in the buffer

getFragments

public java.util.Collection<FragmentBuffer.Fragment> getFragments()

getBuffer

public byte[] getBuffer()

getLength

public int getLength()

getSmallestUnbufferedFragment

public FragmentBuffer.Fragment getSmallestUnbufferedFragment(int offset,
                                                             int length)

Gets the smallest fragment that contains offset and offset + length that has not been buffered in this buffer.

Parameters:

offset - the offset

length - the length

Returns:

the fragment that has not yet been buffered

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object otherObject)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object