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From: Stanimir Stamenkov <s7an10@netscape.net>
Newsgroups: comp.lang.java.programmer
Subject: Re: Piggypack Encoding/Decoding on RandomAccessFile
Date: Sat, 05 Nov 2011 16:51:45 +0200
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Thu, 03 Nov 2011 19:18:50 +0100, /Jan Burse/:

> How can I go about and encode/decode bytes read
> from a random access file.
>
> I am used to FileInputStream and FileOutputStream,
> but I don't see right now how I could piggypack
> encoding/deconding on a RandomAccessFile:
>
> http://download.oracle.com/javase/7/docs/api/java/io/RandomAccessFile.html
>
> Should I mingle with file descriptor, and get
> associated input and output streams, and then
> move forward?

I think it is o.k. to use the FileDescriptor obtained from a 
RandomAccessFile to create a FileInputStream if you need to read the 
contents of the file through InputStream interface further.

One could also obtain InputStream to the RandomAccessFile using its 
FileChannel:

import java.io.InputStream;
import java.io.RandomAccessFile;
import java.nio.channels.Channels;

   RandomAccessFile raf;
   ...
   InputStream in = Channels.newInputStream(raf.getChannel());

java.nio.channels.Channels also provide:

import java.io.Reader;

   Reader reader = Channels.newReader(raf.getChannel(), "UTF-8");

-- 
Stanimir