org.abstracthorizon.mercury.imap.util.section
Class MeasuredInputStream

java.lang.Object
  java.io.InputStream
      org.abstracthorizon.mercury.imap.util.section.MeasuredInputStream

All Implemented Interfaces:

Closeable

public class MeasuredInputStream
extends InputStream

Input stream that counts number of bytes and let only specified number of bytes to be read

Author:

Daniel Sendula

Field Summary

protected InputStream	is Wrapped input stream
protected long	len Maximum len
protected long	mark Mark
protected long	read Amount of read bytes

Constructor Summary

MeasuredInputStream(InputStream is, long len)
Constructor

Method Summary

int	available()
void	close()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	size() Returns measured size
long	skip(long n)

Methods inherited from class java.lang.Object

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

Field Detail

is

protected InputStream is

Wrapped input stream

len

protected long len

Maximum len

read

protected long read

Amount of read bytes

mark

protected long mark

Mark

Constructor Detail

MeasuredInputStream

public MeasuredInputStream(InputStream is,
                           long len)

Constructor

Parameters:

is - input stream

len - expected len

Method Detail

size

public long size()

Returns measured size

Returns:

measured size

available

public int available()
              throws IOException

Overrides:

available 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 readlimit)

Overrides:

mark in class InputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

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

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException