Dreamtech Software Team's Instant Messaging Systems: Cracking the Code PDF

By Dreamtech Software Team

ISBN-10: 0764549537

ISBN-13: 9780764549533

* entire speedy messaging functions with layout requisites, circulation diagrams and resource code with line-by-line rationalization. * contains 2 diversified Jabber-compliant IM strategies - Java dependent and .NET established with C#. * every one answer makes heavy use of internet prone. * The IM purchaser is prolonged past the machine to incorporate hand held instant units. concerning the CD-ROM CD ROM contains totally functioning IM structures inbuilt the e-book, in addition to entire resource code and extra third get together improvement instruments.

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Download e-book for kindle: Instant Messaging Systems: Cracking the Code by Dreamtech Software Team

* whole immediate messaging purposes with layout necessities, circulate diagrams and resource code with line-by-line rationalization. * comprises 2 assorted Jabber-compliant IM ideas - Java dependent and . web dependent with C#. * each one resolution makes heavy use of internet prone. * The IM customer is prolonged past the computer to incorporate hand-held instant units.

Extra resources for Instant Messaging Systems: Cracking the Code

Sample text

Message synchronization As mentioned earlier, the local server needs to be handy while handling clients. Similarly, it becomes mandatory that the local server have the provisions to manage the messages flowing from the Jabber server and from itself for the client. To encounter such a problem, you can incorporate some functionality that queued up the messages for clients so that respective the client can flush them. When messages are queued up, make sure they contain the ID of the recipient client.

Z* Figure 2-3c: Work flow of the local server module The local server is designed to handle all in-coming client requests on port 5555. At the start up of the process, the local server waits for clients to make a connection request. No sooner than the client makes the request, the local server reads the request and stores it in a file. The local server then parses the client request to determine the mode of the request. The nature of the client request at this stage is either for authentication or logging on (if user is registered) or for registration (if user is new).

The connection requests that clients reach the server via some port number; in other words, the server listens for in-coming client requests on some specified port number. In our application, the local server module uses this class for catering to client requests for connection on port 5555. The ServerSocket class maintains the input/output stream for clients to receive requests and to send appropriate responses to the client. • Socket — The local server module uses this class for maintaining connection with the Jabber server, which listens for all incoming requests on the specified port number (5222).

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Instant Messaging Systems: Cracking the Code by Dreamtech Software Team


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