org.abstracthorizon.danube.webdav.fs
Class RandomAccessFileRangeInputStream

java.lang.Object
  java.io.InputStream
      org.abstracthorizon.danube.webdav.fs.RandomAccessFileRangeInputStream

All Implemented Interfaces:

Closeable

public class RandomAccessFileRangeInputStream
extends InputStream

Input stream that is based on RandomAccessFile and has given offset and length.

Author:

Daniel Sendula

Field Summary

protected long	initialOffset Initial offset
protected long	len Number of bytes that can be read
protected long	mark Mark pointer
protected long	markLen Mark length
protected RandomAccessFile	raf Random access file reference

Constructor Summary

RandomAccessFileRangeInputStream(File file, long from, long length)
Constructor

Method Summary

void	close()
void	mark(int i)
boolean	markSupported()
int	read()
int	read(byte[] buf, int from, int length)
void	reset()
long	skip(long l)

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

raf

protected RandomAccessFile raf

Random access file reference

len

protected long len

Number of bytes that can be read

initialOffset

protected long initialOffset

Initial offset

mark

protected long mark

Mark pointer

markLen

protected long markLen

Mark length

Constructor Detail

RandomAccessFileRangeInputStream

public RandomAccessFileRangeInputStream(File file,
                                        long from,
                                        long length)
                                 throws IOException

Constructor

Parameters:

file - a file

from - initial offset

length - length

Throws:

IOException - thrown from RandomAccessFile

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buf,
                int from,
                int length)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long l)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

mark

public void mark(int i)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream