Instant Messaging Status Checker Algorithm in Java

[hisham.i]

Hello
I am developing Instant messaging application using java, i want to know how status checker algorithms work?.. I searched on google but i didn't get any useful link.
thanks

 

[chiro]

Hello
I am developing Instant messaging application using java, i want to know how status checker algorithms work?.. I searched on google but i didn't get any useful link.
thanks

What protocol and network do you want to use?

Maybe Trillian is a good place to start?

http://sourceforge.net/projects/trilldev/

 

[hisham.i]

Iam using tcp/ip...
What i was thinking about is to let the user listen in a specific port, and in order for another user to know that the first user is online, is to try to connect to him at that port if a socket is bounded then it is online if not then it is offline.

 

[chiro]

You will need to do something a bit more higher level.

The application protocol for IM will use something like a protocol in TCP/IP family.

My advice to you is to get some specific specs about a particular IM protocol and use that to do what you need to do.

What you're doing sounds like what typical port scanners do, but actually getting decent information from a client means you will need to do something more specialized.

 

[LudusRex]

I am excited to hear about your development of an instant messaging application using Java! As for your question about status checker algorithms, let me explain how they work.

Status checker algorithms are used to determine the online or offline status of a user in an instant messaging application. They work by continuously checking for updates from the user's device or server and updating their status accordingly. This can be done in several ways, such as through a heartbeat signal or by periodically sending requests to the user's device.

In Java, you can implement a status checker algorithm by using a combination of data structures and logic. For example, you can use a hashmap to store the user's status and a timer to periodically check for updates. You can also use multithreading to ensure efficient and continuous checking of status.

I understand that you have searched for useful links but have not found any. I would recommend looking into online resources or textbooks on data structures and algorithms in Java to get a better understanding of how to implement a status checker algorithm. Additionally, you can reach out to other developers or forums for insights and guidance.

Best of luck with your instant messaging application development! I am sure your use of status checker algorithms will greatly enhance the user experience. Happy coding!