Wednesday, 18 February 2009

C++ Server Pages

In my prevoius blogs I wondered if there is/could be a C++ implementation of the Java's Servlet interface(s)*, and recently a friendly fellow blogger** pointed out to me that there already is one, viz the CPPSERV: http://www.total-knowledge.com/progs/cppserv/!

Can you see C++ it its logo?

I cite*:

CPPSERV is a web application server that provides Servlet-like API and JSP-like functionality to C++ programmers.
...
CSP (C++ Server pages), the JSP equivalent for CPPSERV, are currently implemented as a precompiler that converts CSP source to C++ source of a servlet, which, in turn needs to be compiled into CPPSERV servlet
.
...
Current CSP implementation supports basic parsing, as well as compile-time taglibs.

Well, that's it! Or perhaps not? What we have is the equivalent of the Java's JSPs, which generally suck, and standing alone are too week a framework for serious work. But hey, it's not that bad, as we have got some choices: the CPPSERV for the oldskool JSP-like programming, the late Bobcat for more of the same, or the Wt framework*** for more modern, GWT-like work!

And with some discipline (I mean the model 1 ;-))) servlets, do you remember???) it's possible to get working application in C++ quickly! And all that Java frameworks out there are only trying to hide the JSP processing model, and they aren't that beautiful themselves. So for smaller things a JSP-like solution will be probably sufficient, and for more modern applications (including AJAX support) I'd choose the Wt framework.

There remains the question of the OO-Relational mapping, an the creators of CPPSERV suggest using their SPTK classes****, but it seems to be only a JDBC-like DB access layer. I suppose, I'd rather take Qt's DB classes for that, but on the other side, they are somehow heavyweight. But the OO-Relational thing for C++ is a different question in itself. But JDBC style access isn't that horrible either, and in a whole I think there are some viable options for C++ web applications out there!

Now I guess, I should try out the 2 frameworks, but ... ehm ... you know, so little time, so many books...

PS (07 Oct. 2009): meanwhile I have detected two another C++ and C "Servlets". Well they aren't really Servlets, but are rather one step back on the evolutionary path, and are somehow JSP-equivalent. The first of them is named KLone and allows you to include C scripts in the HTML page in the exact JSP manner. The other is GWAN - it's free and it allows you to write "servlet" scripts in C, which will be executed by the server and generate the HTML output - so in this case we are almost there, except for the very limited set of functions you can use in the script. Nonetheless, very interesting!

--
* see: http://ib-krajewski.blogspot.com/2008/10/c-servlets-again.html
** Gavino, unfortunately his profile isn't available :-(((, but nonetheless, thanks bloke!
*** The Wt-framework ("witty" - http://www.webtoolkit.eu/wt/)
**** SPTK: mainly a GUI framework, but it has some DB access support as well: http://www.sptk.net/index.php


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