net.sf.japaki.io
Class SlicedReader

java.lang.Object
  java.io.Reader
      net.sf.japaki.io.SlicedReader

All Implemented Interfaces:

Closeable, Readable

public class SlicedReader
extends Reader

A sliced reader is a reader that can be "sliced". A slice is a kind of clone that is based on the same reader as the original but stores its own position in the character stream. The ability to keep the position depends on the size of the underlying buffer.

Field Summary

Fields inherited from class java.io.Reader

lock

Constructor Summary

protected

SlicedReader(ReaderBuffer buffer) Constructs a new sliced reader based on the given reader.

Method Summary

void	close()
protected int	getPosition() Returns the current position.
static SlicedReader	newReader(Reader in) Constructs a new sliced reader based on the given reader.
static SlicedReader	newReader(Reader in, int sz) Constructs a new sliced reader based on the given reader.
int	read(char[] cbuf, int off, int len)
SlicedReader	slice() Creates a slice of this reader.

Methods inherited from class java.io.Reader

mark, markSupported, read, read, read, ready, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

SlicedReader

protected SlicedReader(ReaderBuffer buffer)

Constructs a new sliced reader based on the given reader.

Parameters:

buffer - base buffer

Throws:

NullPointerException - if buffer is null

Method Detail

newReader

public static SlicedReader newReader(Reader in,
                                     int sz)

Constructs a new sliced reader based on the given reader.

Parameters:

in - base reader

sz - size to allocate for the buffer

Throws:

NullPointerException - if in is null

IllegalArgumentException - if the size is a negative integer

newReader

public static SlicedReader newReader(Reader in)

Constructs a new sliced reader based on the given reader.

Parameters:

in - base reader

Throws:

NullPointerException - if in is null

getPosition

protected int getPosition()

Returns the current position.

Returns:

the current position

slice

public SlicedReader slice()

Creates a slice of this reader.

Returns:

a new slice of this reader

read

public int read(char[] cbuf,
                int off,
                int len)
         throws IOException

Specified by:

read in class Reader

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in class Reader

Throws:

IOException