Class IIOInputStreamAdapter

java.lang.Object

java.io.InputStream

com.twelvemonkeys.imageio.util.IIOInputStreamAdapter

All Implemented Interfaces:

Closeable, AutoCloseable

class IIOInputStreamAdapter
extends InputStream

IIOInputStreamAdapter

Note: You should always wrap this stream in a BufferedInputStream. If not, performance may degrade significantly.

Version:

$Id: IIOInputStreamAdapter.java,v 1.0 Sep 26, 2007 11:35:59 AM haraldk Exp$

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	hasLength
private ImageInputStream	input
private long	left
private long	markPosition

Constructor Summary

Constructors

Modifier	Constructor	Description
	IIOInputStreamAdapter(ImageInputStream pInput)	Creates an InputStream that reads from the given ImageInputStream.
	IIOInputStreamAdapter(ImageInputStream pInput, long pLength)	Creates an InputStream that reads from the given ImageInputStream.
private	IIOInputStreamAdapter(ImageInputStream pInput, long pLength, boolean pHasLength)

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()	Marks this stream as closed.
private long	findMaxLen(long pLength)	Finds the maximum number of bytes we can read or skip, from this stream.
void	mark(int pReadLimit)
boolean	markSupported()
int	read()
final int	read(byte[] pBytes)
int	read(byte[] pBytes, int pOffset, int pLength)
void	reset()
long	skip(long pLength)

Methods inherited from class InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class Object

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

Field Details

input

private ImageInputStream input

hasLength

private final boolean hasLength

left

private long left

markPosition

private long markPosition

Constructor Details

IIOInputStreamAdapter

public IIOInputStreamAdapter(ImageInputStream pInput)

Creates an InputStream that reads from the given ImageInputStream. The input stream will read from the current stream position, until the end of the underlying stream.

Parameters:

pInput - the ImageInputStream to read from.

IIOInputStreamAdapter

public IIOInputStreamAdapter(ImageInputStream pInput,
 long pLength)

Creates an InputStream that reads from the given ImageInputStream. The input stream will read from the current stream position, until at most pLength bytes has been read.

Parameters:

pInput - the ImageInputStream to read from.

pLength - the length of the stream

IIOInputStreamAdapter

private IIOInputStreamAdapter(ImageInputStream pInput,
 long pLength,
 boolean pHasLength)

Method Details

close

public void close()
           throws IOException

Marks this stream as closed. This implementation does not close the underlying stream.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

mark

public void mark(int pReadLimit)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public final int read(byte[] pBytes)
               throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] pBytes,
 int pOffset,
 int pLength)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

findMaxLen

private long findMaxLen(long pLength)

Finds the maximum number of bytes we can read or skip, from this stream. The number will be in the range [0 ... bytes left].

Parameters:

pLength - the requested length

Returns:

the maximum number of bytes to read

skip

public long skip(long pLength)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException