Johnny, The answers to most of your questions are still up in the air. There are several ways that I could go about the project. The CNC machines that I have experience with rely on an operator (human) to point it (the machine) at a file that contains the instructions and say 'GO'.
Along these lines, I was thinking one approach would be to have the CNC programmer write what would essentially be a JSP that has instructions in G code and any logic in java. Next the programmer would request this page from Tomcat and the response would only have the G code instructions and this file could be saved to the filesystem. Then the CNC operator would then point the machine at this file. That is the 'manual version'. Another version of the system could have the CNC machine make the request for a page from the server. This seems like the slicker, cooler version. My servlet would be very similar to JSP but instead of responding with HTML, it would respond with a text file containing the G code instructions. I have to look into the machines communication protocols. I am fairly certain that they are using TCP/IP to find files on a file system. -----Original Message----- From: Johnny Kewl [mailto:[EMAIL PROTECTED] Sent: Friday, November 16, 2007 11:57 AM To: Tomcat Users List Subject: Re: Can Tomcat be used as a servlet container for non-http servlets? --------------------------------------------------------------------------- HARBOR: http://coolharbor.100free.com/index.htm Now Tomcat is also a cool pojo application server --------------------------------------------------------------------------- ----- Original Message ----- From: "Sean Nagle" <[EMAIL PROTECTED]> To: "apache users" <users@tomcat.apache.org> Sent: Friday, November 16, 2007 6:28 PM Subject: Can Tomcat be used as a servlet container for non-http servlets? > Where can I get more information about the design and use of Tomcat in > regards to non-http servlet applications? I tried searching in the mailing > list archives for "non http" and found this thread: > > http://mail-archives.apache.org/mod_mbox/tomcat-dev/200004.mbox/%3c38F4C980. > [EMAIL PROTECTED] > > This thread was from April 2000 and Tomcat 3.x and the developers were > still > trying to figure out the architecture of generic vs. http servlets. > > I am interested in writing a servlet that would derive from GenericServlet > and I am wondering if I will be able to use Tomcat as the servlet > container. > My application would doesn't have anything to do with email or ftp or the > like. What I would like to do is something similar to JSP but instead of > the > response being html it would be instructions to run a CNC machine Magic! Nice project... I think the only question is whether the CNC machine can make TCP/IP requests. If so, yes why not? Its just a raw request with no protocol in it, ie no HTTP headers and all the other things that browsers need, so you just have to study what the machine wants to see. //Machine will call into this public void service(ServletRequest req, ServletResponse res){ //Tell than machine what it needs to hear ;) } The CNC machine maybe the server though... in which case you will have to use a socket to talk to it. What protocol does the machine support? Is it a Client or Server? > > Other google searches have not turned up much information about how to use > Tomcat in this way. > > If it is not currently designed for such a purpose, would it be possible > to > modify or extend Tomcat so that it would be able to? > > Thanks in advance for any help > > Sean Nagle > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
