de.undercouch.bson4jackson.io

Class StaticBufferedInputStream

java.lang.Object

java.io.InputStream

de.undercouch.bson4jackson.io.StaticBufferedInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and 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, read

Methods inherited from class java.lang.Object

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

Field Detail

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 java.nio.ByteBuffer _byteBuffer

A re-usable buffer

_raw

protected final byte[] _raw

The raw re-usable buffer

_in

protected final java.io.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 Detail

StaticBufferedInputStream

public StaticBufferedInputStream(java.io.InputStream in)

Creates a new buffered input stream

Parameters:

in - the original unbuffered input stream

StaticBufferedInputStream

public StaticBufferedInputStream(java.io.InputStream in,
                                 int size)

Creates a new buffered input stream

Parameters:

in - the original unbuffered input stream

size - the minimum buffer size

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

fill

protected void fill()
             throws java.io.IOException

Throws:

java.io.IOException

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

mark

public void mark(int marklimit)

Overrides:

mark in class java.io.InputStream

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException