uk.ac.rdg.resc.jstyx.tutorial
Class WhoAmIFile

java.lang.Object
  uk.ac.rdg.resc.jstyx.server.StyxFile
      uk.ac.rdg.resc.jstyx.tutorial.WhoAmIFile

public class WhoAmIFile
extends StyxFile

Simple custom Styx file that, when read, returns the IP address and local port of the client that is connected.

Author:

Jon Blower $Revision: 391 $ $Date: 2005-09-05 08:21:14 +0100 (Mon, 05 Sep 2005) $ $Log$ Revision 1.3 2005/09/05 07:21:14 jonblower Set permissions of file to 0444 Revision 1.2 2005/08/30 16:27:49 jonblower Continued to develop website and tutorial Revision 1.1 2005/08/30 09:50:48 jonblower Renamed "WhoAmI" to "WhoAmIFile" Revision 1.1 2005/08/30 08:01:48 jonblower Continuing development of tutorial

Field Summary

Fields inherited from class uk.ac.rdg.resc.jstyx.server.StyxFile

auth, directory, lastModifiedTime, name, parent

Constructor Summary

WhoAmIFile()
Creates a new instance of WhoAmIFile

Method Summary

static void	main(java.lang.String[] args) Simple test function: sets up a StyxServer that serves up a WhoAmIFile
void	read(StyxFileClient client, long offset, int count, int tag) Reads data from this file.

Methods inherited from class uk.ac.rdg.resc.jstyx.server.StyxFile

addChangeListener, addClient, checkSetLastModifiedTime, checkSetLength, checkSetMode, checkSetName, clientConnected, clientDisconnected, contentsChanged, delete, fireContentsChanged, getClient, getDirEntry, getFullPath, getGroup, getLength, getName, getNumClients, getOwner, getParent, getPermissions, getQid, getVersion, incrementVersion, isAppendOnly, isAuth, isDirectory, isExclusive, processAndReplyRead, processAndReplyRead, processAndReplyRead, refresh, remove, removeChangeListener, removeClient, rename, replyRead, replyRead, replyRead, replyRead, replyRead, replyWrite, setLastAccessTime, setLastModified, setLength, setMode, setName, setPermissions, setReadOnly, write

Methods inherited from class java.lang.Object

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

Constructor Detail

WhoAmIFile

public WhoAmIFile()
           throws StyxException

Creates a new instance of WhoAmIFile

Throws:

StyxException

Method Detail

read

public void read(StyxFileClient client,
                 long offset,
                 int count,
                 int tag)
          throws StyxException

Reads data from this file. Gets the IP address of the remote client and returns it.

Overrides:

read in class StyxFile

Parameters:

client - The client that is performing the read

offset - The index of the first byte of data to return

count - The maximum number of bytes to read

tag - The tag of the incoming read message (this is needed when calling readReply())

Throws:

StyxException

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Simple test function: sets up a StyxServer that serves up a WhoAmIFile

Throws:

java.lang.Exception