RE: Can Tomcat be used to host socket servers?
In other words instead of committing to single port request TC use a port range for connector? You might be able to accomplish the task by developing an algorithm which rewrites server.xml with 'unused port' Not sure if this has been accomplished ? Martin __ Disclaimer and confidentiality note Everything in this e-mail and any attachments relates to the official business of Sender. This transmission is of a confidential nature and Sender does not endorse distribution to any party other than intended recipient. Sender does not necessarily endorse content contained within this transmission. Date: Wed, 14 Jan 2009 09:20:27 -0500 From: jhmast.develo...@gmail.com To: users@tomcat.apache.org Subject: Can Tomcat be used to host socket servers? Is it possible to use Tomcat to host socket servers? Or is Tomcat a strictly 1 port operation? thanks _ Windows Live™: Keep your life in sync. http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009
Re: Can Tomcat be used to host socket servers?
Well what I want is to have a dedicated port for a socket, I just want all the application infrastructure to be handled by Tomcat rather than a writing a custom solution. Not sure if dynamically rewriting server.xml is the way to go. My guess would by a Valve/Connector type thing, but I'm just not that familiar with Tomcat. I can't be only one who has had this issue. The situation is that we have some existing programs (written in C) that are socket servers. I want to redo them in Java, and having Tomcat host them would be great because I could focus solely on the parts of the program than do request processing and leave the housekeeping to Tomcat. In other words, I want to write servlets that are faux-sockets. On Wed, Jan 14, 2009 at 10:33 AM, Martin Gainty mgai...@hotmail.com wrote: In other words instead of committing to single port request TC use a port range for connector? You might be able to accomplish the task by developing an algorithm which rewrites server.xml with 'unused port' Not sure if this has been accomplished ? Martin __ Disclaimer and confidentiality note Everything in this e-mail and any attachments relates to the official business of Sender. This transmission is of a confidential nature and Sender does not endorse distribution to any party other than intended recipient. Sender does not necessarily endorse content contained within this transmission. Date: Wed, 14 Jan 2009 09:20:27 -0500 From: jhmast.develo...@gmail.com To: users@tomcat.apache.org Subject: Can Tomcat be used to host socket servers? Is it possible to use Tomcat to host socket servers? Or is Tomcat a strictly 1 port operation? thanks _ Windows Live™: Keep your life in sync. http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009
RE: Can Tomcat be used to host socket servers?
From: Jonathan Mast [mailto:jhmast.develo...@gmail.com] Subject: Re: Can Tomcat be used to host socket servers? Not sure if dynamically rewriting server.xml is the way to go. Pretty much guaranteed not to be, since that would require stopping and restarting Tomcat. The situation is that we have some existing programs (written in C) that are socket servers. It's not clear to me exactly what you mean by are socket servers. Do you mean they simply do a listen/accept on a server socket, waiting for connection requests from some client? If so, what protocol is being used? If it's not HTTP (or AJP), Tomcat won't help you. Handling server sockets in Java borders on the trivial; using Tomcat just for that would be massive overkill. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Can Tomcat be used to host socket servers?
Thanks for cogent reply, Chuck :) By socket servers, I mean the existing programs are bound to a particular port number and just sit there waiting for requests. The port numbers are arbitrary, and I'm not knowledgeable enough of networking to know whether they use HTTP or not. I'll probably just write stand alone Java sockets servers and simply bounce incoming requests over to a servlet I'll develop to do the heavy liffting. The reason I would have liked Tomcat to handle the whole shebang is that now I'll have to adjust each system that hosts these sockets to automatically invoke them when they restart. Kinda tedious. Thanks again On Wed, Jan 14, 2009 at 4:35 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Jonathan Mast [mailto:jhmast.develo...@gmail.com] Subject: Re: Can Tomcat be used to host socket servers? Not sure if dynamically rewriting server.xml is the way to go. Pretty much guaranteed not to be, since that would require stopping and restarting Tomcat. The situation is that we have some existing programs (written in C) that are socket servers. It's not clear to me exactly what you mean by are socket servers. Do you mean they simply do a listen/accept on a server socket, waiting for connection requests from some client? If so, what protocol is being used? If it's not HTTP (or AJP), Tomcat won't help you. Handling server sockets in Java borders on the trivial; using Tomcat just for that would be massive overkill. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Can Tomcat be used to host socket servers?
From: Jonathan Mast [mailto:jhmast.develo...@gmail.com] Subject: Re: Can Tomcat be used to host socket servers? By socket servers, I mean the existing programs are bound to a particular port number and just sit there waiting for requests. The port numbers are arbitrary How do they get assigned? When you say the program is listening for a request, does it have a socket_read or socket_accept up? (The first is looking for data, the second for a connection request.) I'm not knowledgeable enough of networking to know whether they use HTTP or not. That's a rather critical factor to determine whether or not you can simply pass on the request to a servlet. The reason I would have liked Tomcat to handle the whole shebang is that now I'll have to adjust each system that hosts these sockets to automatically invoke them when they restart. Kinda tedious. You won't be able to use a stock Tomcat to listen/read on those ports, but you could still package your socket servers inside a webapp. A ServletContextListener inside the webapp would likely have to create a thread for each port of interest, and those threads could connect with the standar Tomcat port to pass on HTTP-formatted requests. Your clients would have to expect HTTP as a response, or your server threads would have to convert the response to whatever protocol the clients do expect. You could also write your own Tomcat connector to do the above, rather than a webapp, but you would then be pretty much tied to a specific level of Tomcat. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
