Re: help needed with myjxta installation in a vlan environment

inline.

hth,

- james

--
James Todd :: blogs.sun.com/gonzo | weblogs.java.net/blog/gonzo 

MyJXTA :: use it - learn it - do it

Java == platform independence
XML  == application independence
JXTA == network independence

Secure End-to-End Computing 


abhishek sourabh wrote:
> Hi James,
> 
> Thanks for the quick reply. I have used the java web
> start to install the application and I was able to
> connect to the public network once too (i think so, I
> got a "hi" msg from gonjo, i think that was you or
> some welcome bot, but nothing after that and i had to
> terminate the process due to some problem i cant
> recall .. probably being unable to type.)

the hi messages i indeed an auto-response from my peer. therefore
your instance was installed, running and connected to the public
network.

you might want to hang out a bit on myjxta as others may be online
but not at their keyboards. either that or have a friend start another
instance. you, too, can start 2 instances:

  http://wiki.java.net/bin/view/Jxta/RunningJXTA

lastly, if we sync up, and when i'm no longer on vacation, i will work
with you to ensure we are both online and connected.

i have had trouble with a "internationalized/input method enabled" firefox
(could be underlying jre registered with firefox) whereby i could no longer
input keystrokes yet the mouse continued to work. after switching to my own
firefox install and mapping to a jre i installed this problem went away.

> 
> But the problem has been that each time i click on
> myJXTA icon, it starts going through the entire web
> start process again. tries to install the entire thing
> again.  This has happened quite a few times. ( i tried
> it again right now .. but it has hung at the point
> "starting application ..")

upon second and subsequent runs webstart will check to see
if any component of the application has changed and if so will
download it to run. for me, on linux, the subsequent runs of
myjxta occur in quick succession, ie the entire initial webstart
process is not rerun.

we should try out some tests.

second and subsequent concurrent instances of myjxta do not fully
initialize but instead will simply pass their system parameters on
to the first running instance. i wonder if you have a hidden version
of myjxta running (eg double clicking the webstart icon).

> 
> Then i downloded the files and the batch file had a
> SET command missing before sp="-DJXTA_HOME=%home%"
> code (at least thats what i surmised)... i changed
> that and continued with the installation. I had
> downloaded 2.3.4 version... it threw too many errors
> and would not show me the chat window... then i
> downloaded 2.3.3. and it was able to show a chat
> window, but did not detect another user. 

we should work with 2.3.4 or even the nightly build.

i made some modifications to the bat script yesterday along
the lines of adding the missing "set" command ... but i didn't
test it as i don't have a windows box readily available at this
time.

the application output may not be errors but simply logging
information.

> 
> i have already been through the myJXTA web log. and
> tried to make the changes to the profile.xml and
> myjxta.xml. But there are three directories where
> .myjxta folder and these two files are present. i was
> not sure in which directory i should make the changes.
> I am not sure if i need to change the uuid from what
> was given in the blog. There were some differences in
> the decription of the files in the blog and the
> contents of my xml files.  Hence i was really not sure
> what/how to make the changes. 

depending on which application from which you invoke webstart
the specified HOME can vary. optimally, it would always be under
the user home directory, as is the case on *nix, but this does
not appear to be the case on windows. eg i have seen different
versions of firefox specify a different HOME. this is one reason
we added the "status" directive that will output, to system out,
the current JXTA_HOME value. a directive is an irc-like command
that can be entered in the chat dialog, eg:

  /status

we likely need to include this information in a popup dialog or
some such interface.

you can run more then one concurrent instance as long as they have
distinct JXTA_HOME values and they do not conflict port-wise. the
default configuration addresses the port resolution concern.

each directory that includes a PlatformConfig and, for MyJXTA, myjxta.xml
is known as the application instance JXTA_HOME.

the myjxta.xml and profile.xml files can include default values which
are not visibly present for all deployments. nonetheless, all constructs
listed in the profile.xml schema are available:

  http://wiki.java.net/bin/view/Jxta/ExtConfig

and attributes can be added to elements to override defaults.

> 
> i will try downloading the recent version and
> installing it and would tell you of the results. 

we should coordinate some time whereby you and i are both online
concurrently, if possible.

> 
> thanks for your time.

thank you for the feedback and trying out myjxta :)

> 
> abhishek
> 
> P.S.: I am CCing this to dev list as well.but i am not
> sure if this will be allowed past filters cuz i dont
> think non-member mails are allowed. 
> 
> --- James Todd <[email protected]> wrote:
> 
> 
>>Hi Abhishek -
>>
>>  Cc'ing the MyJXTA dev list ... as others on that
>>list run MyJXTA on Windows.
>>
>>  I'm still on vacation, and running late for an
>>appointment, so my response
>>  here is short. That said, when I'm back online
>>I'll help out as needed. The
>>  MyJXTA code slingers are quite helpful as well so
>>I suspect someone on the
>>  above Cc list can help.
>>
>>  In short, MyJXTA can likely fill your needs. That
>>said, any JXTA application
>>  with like capabilities can help as well.
>>
>>  You might want to try the WebStart/JNLP build if
>>you haven't already:
>>
>>   
>>
> 
> http://download.jxta.org/build/nightly/jnlp/myjxta.jnlp
> 
>>    note: webstart information -
>>http://java.sun.com/products/javawebstart
>>
>>  I have not run the MyJXTA bat script for awhile
>>now and it could be that it
>>  includes an error. If so, we should get that
>>fixed. Hmmmmmmmm ... I just looked
>>  at the file that generates the bat script and made
>>some mods that might work.
>>  It should be tested.
>>
>>  I recommend trying to connect on the default
>>"Public Network" (aka PubNet) first
>>  and if it works as expected we can work to help
>>you construct a private network
>>  deployment. A blog titled "My MyJXTA" on java.net
>>details how to achieve a private
>>  network deployment:
>>
>>    http://weblogs.java.net/blog/gonzo
>>
>>    note: configuration improvements are forthcoming
>>that should further ease/aid
>>          non-default deployments
>>
>>  Lastly, the MyJXTA Wiki has more information as
>>well:
>>
>>    http://wiki.java.net/bin/view/Jxta/MyJXTA
>>
>>  hth,
>>
>>- james
>>
>>--
>>James Todd :: blogs.sun.com/gonzo |
>>weblogs.java.net/blog/gonzo 
>>
>>MyJXTA :: use it - learn it - do it
>>
>>Java == platform independence
>>XML  == application independence
>>JXTA == network independence
>>
>>Secure End-to-End Computing 
>>
>>
>>abhishek sourabh wrote:
>>
>>>hi,
>>>
>>>I am a student and I just came across myJXTA and
>>
>>was
>>
>>>interested in
>>>knowing if it can be used in my lan environment. 
>>>
>>>Our
>>>lan has 3 vlans which makes it impossible to use a
>>>broadcast based messenger for communicating to
>>>everyone. We were looking for a non-server based
>>>solution which can connect the users in all 3
>>
>>vlans
>>
>>>and allow them to see everyone who is on-line,
>>
>>send
>>
>>>msgs to them and exchange files with them. we
>>
>>wanted a
>>
>>>software which would allow us to do this without
>>
>>any
>>
>>>need to connect to outside the three vlans. The
>>>software should automatically detect all the users
>>
>>and
>>
>>>list them. If the division in to 3 vlans mean that
>>
>>the
>>
>>>address of at least one router/rendezvous computer
>>>needs
>>>to be given, then that is okay.
>>>
>>>I am not proficient with java but from what i
>>
>>could
>>
>>>gather myjxta can be used for solving this
>>
>>problem. i
>>
>>>copied the zip files from downloads section and
>>
>>tried
>>
>>>installing it on my system, but there seemed to be
>>>some errors in the batch files. i have a win XP
>>>system. On executing the batch file, the dos
>>
>>window
>>
>>>gave an error saying that 'sd' is not a recognised
>>>command name. i tried launching the demo version
>>
>>from
>>
>>>the site http://www.jxta.org/demo.html but it
>>
>>takes
>>
>>>too long to install and i am not clear if this is
>>
>>what
>>
>>>is needed for our purpose.
>>>
>>>Could you help me  by answering the following
>>>questions:
>>>
>>>1. Can myJXTA help me solve the problem mentioned
>>>above?
>>>2. Can it do so in a way that technically
>>
>>primitive
>>
>>>people can use it?
>>>3. If yes, What are the steps i should take?
>>>4. If you could send me an installation file (my
>>>account can accept files up to 10 Mb size, if the
>>>files
>>>are bigger, a link would also do), in case the
>>
>>files
>>
>>>given in the download section are not suitable for
>>
>>my
>>
>>>purpose or are not a stable version.
>>>5. If the files just need to be tweaked a little
>>
>>bit
>>
>>>to make it suitable, can i do that and distribute
>>
>>the
>>
>>>files among the users of my lan. This distribution
>>>would just be for the purpose of using the
>>
>>software
>>
>>>and not selling/profiting out of it.
>>>6. If the files need to be tweaked, can it be done
>>
>>by
>>
>>>a relatively inexperienced user? If yes, are there
>>
>>any
>>
>>>manuals/guidelines for handholding?
>>>
>>>thanks a lot, looking forward to hearing from you.
>>>
>>>abhishek
>>>
>>>
>>>		
>>>
>>
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