org.paneris.util
Class CRLFFtellReader

java.lang.Object
  java.io.Reader
      java.io.FilterReader
          org.paneris.util.CRLFFtellReader

All Implemented Interfaces:

java.io.Closeable, java.lang.Readable

public class CRLFFtellReader
extends java.io.FilterReader

Field Summary

Fields inherited from class java.io.FilterReader

in

Fields inherited from class java.io.Reader

lock

Constructor Summary

CRLFFtellReader(java.io.BufferedReader in)
Create a new CRLFFtellReader.

CRLFFtellReader(java.io.File f)
Create a new CRLFFtellReader.

Method Summary

long	getFtell() Get the current position.
void	mark(int readAheadLimit) Mark the present position in the stream.
int	read() Read a single character.
int	read(char[] cbuf, int off, int len) Read characters into a portion of an array.
java.lang.String	readLine() Read a line from the stream.
void	reset() Reset the stream to the most recent mark.
long	skip(long n) Skip characters.

Methods inherited from class java.io.FilterReader

close, markSupported, ready

Methods inherited from class java.io.Reader

read, read

Methods inherited from class java.lang.Object

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

Constructor Detail

CRLFFtellReader

public CRLFFtellReader(java.io.BufferedReader in)

Create a new CRLFFtellReader.

CRLFFtellReader

public CRLFFtellReader(java.io.File f)
                throws java.io.FileNotFoundException

Create a new CRLFFtellReader.

Throws:

java.io.FileNotFoundException

Method Detail

getFtell

public long getFtell()

Get the current position.

read

public int read()
         throws java.io.IOException

Read a single character.

Overrides:

read in class java.io.FilterReader

Returns:

The character read, or -1 if the end of the stream has been reached

Throws:

java.io.IOException - If an I/O error occurs

read

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

Read characters into a portion of an array.

Overrides:

read in class java.io.FilterReader

Parameters:

cbuf - Destination buffer

off - Offset at which to start storing characters

len - Maximum number of characters to read

Returns:

The number of bytes read, or -1 if the end of the stream has already been reached

Throws:

java.io.IOException - If an I/O error occurs

skip

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

Skip characters.

Overrides:

skip in class java.io.FilterReader

Parameters:

n - The number of characters to skip

Returns:

The number of characters actually skipped

Throws:

java.io.IOException - If an I/O error occurs

mark

public void mark(int readAheadLimit)
          throws java.io.IOException

Mark the present position in the stream. Subsequent calls to reset() will attempt to reposition the stream to this point, and will also reset the line number appropriately.

Overrides:

mark in class java.io.FilterReader

Parameters:

readAheadLimit - Limit on the number of characters that may be read while still preserving the mark. After reading this many characters, attempting to reset the stream may fail.

Throws:

java.io.IOException - If an I/O error occurs

reset

public void reset()
           throws java.io.IOException

Reset the stream to the most recent mark.

Overrides:

reset in class java.io.FilterReader

Throws:

java.io.IOException - If the stream has not been marked, or if the mark has been invalidated

readLine

public java.lang.String readLine()
                          throws java.io.IOException

Read a line from the stream. FIXME if the line is not terminated with CR+LF, the getFtell() value will henceforth be off by one. Really, an efficient and 100% correct CRLFFtellReader would have to be based on BufferedReader.

Throws:

java.io.IOException - If an I/O error occurs