I suggested Sockets, ServerSockets, Threads and XML handling because you'll need those if you want to implement your own XMPP client and/or server. A library like Smack (there are others, but it's the best one I evaluated) handles all this and gives you objects instead.
Forget HTTP.
Erik
Leon Rosenberg wrote:
If you have to embed it in your site, and in your site only, forget about sockets, xml and other "complicated" staff.
3 actions (getmessage, sendmessage, checkmessage) 2 html pages, a bit
javascript (for reloads) and 5-10 classes on the business logic will be enough.
Don't make things unneccessary complicated :-)
Regards
Leon
P.S. if you find that you need a more complicated solution in 6 month, you
still can develop it then. Develop now things you need now, don't look for tomorrow :-) (X.P.)
-----Ursprüngliche Nachricht-----
Von: Miquel Angel [mailto:[EMAIL PROTECTED] Gesendet: Donnerstag, 5. Mai 2005 08:36
An: Struts Users Mailing List
Betreff: RE: [OT] Recommendation of Instant Messagging System
Erik, Leon and Jason, thank you very much for your answers.
I think we will develop our own system (we need a messaging system integrated with our system: our table of users, our forms, ...), but we have no experience with sockets, ServletSockets, Threats ... We are goog developing business software (data base access, transactions, reports, ...)
I found a book that seems a good point to start : Instant messaging in Java:
The Jabber protocols
We are looking for a system to start to work with it (we expect to find it in that book).
One important requirement is that this software must run on Internet not only in a Intranet.
Yours, Miquel Angel Seguí
-----Mensaje original-----
De: Erik Weber [mailto:[EMAIL PROTECTED] Enviado el: miércoles, 04 de mayo de 2005 18:39
Para: Struts Users Mailing List
Asunto: Re: [OT] Recommendation of Instant Messagging System
I just finished putting together a system with a Swing client and combined services over XMPP and HTTP.
I think Leon's suggestion of doing your own is not bad, if you are good with Sockets, ServerSockets, XML APIs and Threads (find a good tutorial on building a chat system such as in the ubiquitous "Thinking in Java").
There is also JMS which gives you a low-level core. If you want something higher level, just get Smack from jivesoftware.com, which will give you an OO interface to Jabber (XMPP). Then get jabberd from jabber.org. jabberd 1.4 is small, written in C and gets the job done for what you are talking about, so I would start with that. They are working on the 2.0 "enterprise" version.
I will warn you that while Smack is a great library (you'll get classes such as "Chat", "Packet", "Message", "Presence", etc.), there are some pitfalls related to Threading to watch out for. I rewrote about a half dozen of the core classes. Fortunately, Smack operates with just two main disptach Threads so once you spend some time with the PacketReader and XMPPConnection classes, you'll figure it out. Apache license, too.
Erik
masegui wrote:
The requirements are these:can click a
1. A user has a list of the other users in the system. He
button that initiates a conversation with the selected user.The other
user can accept or not the conversation. If accepts, a "chatroom" is
opened and now then can have a conversation. The rooms only accept 2 people. We would like a user to be able to have severalconversations
it's normallyat a time, but each conversation only between 2 people.
Thanks in advance.
Miquel Angel Segui
<-----Original Message-----> From: Leon Rosenberg Sent: 4/5/2005 10:50:38 AM To: user@struts.apache.org Subject: Re: [OT] Recommendation of Instant Messagging System
if your only functionality is to allow users to send each other
messages
which are embedded in the site (html, or something, but no standalone-desktop solutions) forget about existing systems and implement it by yourself.
I have implemented dozens of such systems over the time,
----------about 100 locs, much less effort than an integration of an existing system is.
maybe you could tell us a bit more, about the requirements of the system, so we could give you more specific answer.
regards Leon
On Wed, 2005-05-04 at 08:13 +0200, Miquel Angel wrote:
We are developing an application (struts 1.1 + Tomcat 5.5 + Java
1.4). One
of the requirements is to implement an instant messaging system for
the
users of the site (the system should not be very complex). Do you
mind to
share your experience in using this system. We are looking for free
or non
free systems.
Thanks in advance.
Miquel Angel Segui
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