Package de.undercouch.bson4jackson.io

Class StaticBufferedInputStream

java.lang.Object

java.io.InputStream

de.undercouch.bson4jackson.io.StaticBufferedInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class StaticBufferedInputStream
extends InputStream

Works like BufferedInputStream, but is not thread-safe and also uses a a re-usable static buffer provided by StaticBuffers to achieve better performance

Field Summary

Fields

Modifier and Type	Field	Description
protected final ByteBuffer	_byteBuffer	A re-usable buffer
protected int	_count	The number of bytes in the buffer
protected final InputStream	_in	The original unbuffered input stream
protected int	_mark	The current marked position.
protected int	_pos	The current read position
protected final byte[]	_raw	The raw re-usable buffer
protected final StaticBuffers	_staticBuffers	Provides re-usable buffers
protected static final StaticBuffers.Key	BUFFER_KEY	A unique key for the re-usable buffer

Constructor Summary

Constructors

Constructor	Description
StaticBufferedInputStream(InputStream in)	Creates a new buffered input stream
StaticBufferedInputStream(InputStream in, int size)	Creates a new buffered input stream

Method Summary

Modifier and Type	Method	Description
void	close()
protected void	fill()
void	mark(int marklimit)
boolean	markSupported()
int	read()
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.io.InputStream

available, nullInputStream, read, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Field Details

BUFFER_KEY

protected static final StaticBuffers.Key BUFFER_KEY

A unique key for the re-usable buffer

_staticBuffers

protected final StaticBuffers _staticBuffers

Provides re-usable buffers

_byteBuffer

protected final ByteBuffer _byteBuffer

A re-usable buffer

_raw

protected final byte[] _raw

The raw re-usable buffer

_in

protected final InputStream _in

The original unbuffered input stream

_pos

protected int _pos

The current read position

_count

protected int _count

The number of bytes in the buffer

_mark

protected int _mark

The current marked position. -1 means no mark.

Constructor Details

StaticBufferedInputStream

public StaticBufferedInputStream(InputStream in)

Creates a new buffered input stream

Parameters:

in - the original unbuffered input stream

StaticBufferedInputStream

public StaticBufferedInputStream(InputStream in,
 int size)

Creates a new buffered input stream

Parameters:

in - the original unbuffered input stream

size - the minimum buffer size

Method Details

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

fill

protected void fill()
             throws IOException

Throws:

IOException

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b,
 int off,
 int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

mark

public void mark(int marklimit)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException