You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@geronimo.apache.org by Kevin Winterton <kw...@mercuri.ca> on 2010/05/05 19:10:50 UTC
Running a non web java application
Hi,
I have designed a Java application that runs like its own server and has
php websites communicating directly with it. I was just wondering if
there was any way I could use Geronimo to run this application on
Geronimo, and if so were I should put it. It was designed in eclipse
just as a Java Project, and when exported is made into a JAR file. Is
it possible to use Geronimo to host an application like this, or can it
only be used for things like servlets, JSP and EJBs.
Please let me know if you need more information, I've already tried
loading the JAR through the Console and it was placed in the App Clients
section.
Thanks,
Kevin
Re: Running a non web java application
Posted by Marshall Crocker <cr...@cavs.msstate.edu>.
One drawback I just thought of, only one instance of this web app can be run on a single server. I could add a list of ports to use in case this happens but that means those ports have to be opened on the firewall. This should work as a temporary fix at least until I can implement a better solution.
>>> "Marshall Crocker" <cr...@CAVS.MsState.Edu> 5/13/2010 11:37 AM >>>
Hi David,
Thanks for the suggestions! I think the gbean approach is my best choice of the solutions you've given. But I think the easiest and fastest solution for me is to implement a simple server that is started in its own thread when the web app starts. This server would simply accept connections on a given socket and handle each transaction in a separate thread.
What drawbacks are there to doing it this way? I would have to be very careful to limit the server threads to prevent any kind of denial of service attack but other than that what problems may I encounter?
The benefits to this method besides being the easiest and fastest for me to implement is that the server would have direct access to all of my web app classes and resources. So it would be able to process the data from the client, create the appropriate objects and save them to the database. Basically it would act the same as the servlets that now accept this data and process it but without all the overhead and limitations of http.
Thanks!
Marshall
>>> David Jencks <da...@yahoo.com> 5/6/2010 11:17 AM >>>
Hi Marshall,
There are several things you can do here. What's best may depend on quite a few factors including how heavily loaded this service is going to be and how you want to configure it.
The most javaee way to approach this is to write an inbound j2ca resource adapter that listens on the socket, retrieves messages, and feeds them to an MDB (possibly with a custom message listener interface). Then your mdb will receive the message in an object and can get access to jpa, jta, jdbc connection pools, etc etc in the standard javaee fashion. The ee container will supply the thread pooling etc for your service.
If you are happy handling thread pooling for requests yourself, you can just write a gbean service and configure it in your geronimo web app plan. In this case if you want to use connection pools you will have to look them up in global jndi, there is no java:comp context for gbeans. The global jndi names for connection pools are printed in the geronimo log as they are set up.
If you are being extremely adventurous and working with geronimo 3 you could alternatively set up your service under osgi perhaps using blueprint and find the datasource in the osgi services registry.
thanks
david jencks
On May 6, 2010, at 7:12 AM, Marshall Crocker wrote:
> Not to hijack this thread but I was wondering the same thing.
>
> In my web app, I want to be able to receive TCP data on a socket. That data will then be parsed and saved to a DB. Clients would connect directly to the TCP socket and transfer the raw data.
>
> Currently the way clients pass data is through the URL such as http://website.com/Servlet?var1=0&var2=1... Since these are mobile devices transmitting using GPRS, I want to eliminate all the http overhead and move to a straight TCP connection.
>
> Any thoughts?
>
> Thanks,
> Marshall
>
>>>> David Jencks <da...@yahoo.com> 5/5/2010 12:45 PM >>>
> You can definitely run it in geronimo (he says with unwarranted overconfidence :-)
>
> You probably want to start it differently than you do as a standalone server. To give advice I'd need to know more about your server including...
>
> -- how do it's clients connect to it
> -- what geronimo services you want it to use.
> -- what setup happens when you start it now
>
> For future-proofing this at the risk of having more uncertainty now you might want to consider packaging your server as an osgi bundle and starting it with an activator (or assembling it with osgi blueprint) and using geronimo 3 (still definitely under development) or if you don't need significant geronimo services felix karaf.
>
> thanks
> david jencks
>
> On May 5, 2010, at 10:10 AM, Kevin Winterton wrote:
>
>> Hi,
>>
>> I have designed a Java application that runs like its own server and has php websites communicating directly with it. I was just wondering if there was any way I could use Geronimo to run this application on Geronimo, and if so were I should put it. It was designed in eclipse just as a Java Project, and when exported is made into a JAR file. Is it possible to use Geronimo to host an application like this, or can it only be used for things like servlets, JSP and EJBs.
>>
>> Please let me know if you need more information, I've already tried loading the JAR through the Console and it was placed in the App Clients section.
>>
>> Thanks,
>> Kevin
>>
>
>
Re: Running a non web java application
Posted by Marshall Crocker <cr...@cavs.msstate.edu>.
Hi David,
Thanks for the suggestions! I think the gbean approach is my best choice of the solutions you've given. But I think the easiest and fastest solution for me is to implement a simple server that is started in its own thread when the web app starts. This server would simply accept connections on a given socket and handle each transaction in a separate thread.
What drawbacks are there to doing it this way? I would have to be very careful to limit the server threads to prevent any kind of denial of service attack but other than that what problems may I encounter?
The benefits to this method besides being the easiest and fastest for me to implement is that the server would have direct access to all of my web app classes and resources. So it would be able to process the data from the client, create the appropriate objects and save them to the database. Basically it would act the same as the servlets that now accept this data and process it but without all the overhead and limitations of http.
Thanks!
Marshall
>>> David Jencks <da...@yahoo.com> 5/6/2010 11:17 AM >>>
Hi Marshall,
There are several things you can do here. What's best may depend on quite a few factors including how heavily loaded this service is going to be and how you want to configure it.
The most javaee way to approach this is to write an inbound j2ca resource adapter that listens on the socket, retrieves messages, and feeds them to an MDB (possibly with a custom message listener interface). Then your mdb will receive the message in an object and can get access to jpa, jta, jdbc connection pools, etc etc in the standard javaee fashion. The ee container will supply the thread pooling etc for your service.
If you are happy handling thread pooling for requests yourself, you can just write a gbean service and configure it in your geronimo web app plan. In this case if you want to use connection pools you will have to look them up in global jndi, there is no java:comp context for gbeans. The global jndi names for connection pools are printed in the geronimo log as they are set up.
If you are being extremely adventurous and working with geronimo 3 you could alternatively set up your service under osgi perhaps using blueprint and find the datasource in the osgi services registry.
thanks
david jencks
On May 6, 2010, at 7:12 AM, Marshall Crocker wrote:
> Not to hijack this thread but I was wondering the same thing.
>
> In my web app, I want to be able to receive TCP data on a socket. That data will then be parsed and saved to a DB. Clients would connect directly to the TCP socket and transfer the raw data.
>
> Currently the way clients pass data is through the URL such as http://website.com/Servlet?var1=0&var2=1... Since these are mobile devices transmitting using GPRS, I want to eliminate all the http overhead and move to a straight TCP connection.
>
> Any thoughts?
>
> Thanks,
> Marshall
>
>>>> David Jencks <da...@yahoo.com> 5/5/2010 12:45 PM >>>
> You can definitely run it in geronimo (he says with unwarranted overconfidence :-)
>
> You probably want to start it differently than you do as a standalone server. To give advice I'd need to know more about your server including...
>
> -- how do it's clients connect to it
> -- what geronimo services you want it to use.
> -- what setup happens when you start it now
>
> For future-proofing this at the risk of having more uncertainty now you might want to consider packaging your server as an osgi bundle and starting it with an activator (or assembling it with osgi blueprint) and using geronimo 3 (still definitely under development) or if you don't need significant geronimo services felix karaf.
>
> thanks
> david jencks
>
> On May 5, 2010, at 10:10 AM, Kevin Winterton wrote:
>
>> Hi,
>>
>> I have designed a Java application that runs like its own server and has php websites communicating directly with it. I was just wondering if there was any way I could use Geronimo to run this application on Geronimo, and if so were I should put it. It was designed in eclipse just as a Java Project, and when exported is made into a JAR file. Is it possible to use Geronimo to host an application like this, or can it only be used for things like servlets, JSP and EJBs.
>>
>> Please let me know if you need more information, I've already tried loading the JAR through the Console and it was placed in the App Clients section.
>>
>> Thanks,
>> Kevin
>>
>
>
Re: Running a non web java application
Posted by David Jencks <da...@yahoo.com>.
Hi Marshall,
There are several things you can do here. What's best may depend on quite a few factors including how heavily loaded this service is going to be and how you want to configure it.
The most javaee way to approach this is to write an inbound j2ca resource adapter that listens on the socket, retrieves messages, and feeds them to an MDB (possibly with a custom message listener interface). Then your mdb will receive the message in an object and can get access to jpa, jta, jdbc connection pools, etc etc in the standard javaee fashion. The ee container will supply the thread pooling etc for your service.
If you are happy handling thread pooling for requests yourself, you can just write a gbean service and configure it in your geronimo web app plan. In this case if you want to use connection pools you will have to look them up in global jndi, there is no java:comp context for gbeans. The global jndi names for connection pools are printed in the geronimo log as they are set up.
If you are being extremely adventurous and working with geronimo 3 you could alternatively set up your service under osgi perhaps using blueprint and find the datasource in the osgi services registry.
thanks
david jencks
On May 6, 2010, at 7:12 AM, Marshall Crocker wrote:
> Not to hijack this thread but I was wondering the same thing.
>
> In my web app, I want to be able to receive TCP data on a socket. That data will then be parsed and saved to a DB. Clients would connect directly to the TCP socket and transfer the raw data.
>
> Currently the way clients pass data is through the URL such as http://website.com/Servlet?var1=0&var2=1... Since these are mobile devices transmitting using GPRS, I want to eliminate all the http overhead and move to a straight TCP connection.
>
> Any thoughts?
>
> Thanks,
> Marshall
>
>>>> David Jencks <da...@yahoo.com> 5/5/2010 12:45 PM >>>
> You can definitely run it in geronimo (he says with unwarranted overconfidence :-)
>
> You probably want to start it differently than you do as a standalone server. To give advice I'd need to know more about your server including...
>
> -- how do it's clients connect to it
> -- what geronimo services you want it to use.
> -- what setup happens when you start it now
>
> For future-proofing this at the risk of having more uncertainty now you might want to consider packaging your server as an osgi bundle and starting it with an activator (or assembling it with osgi blueprint) and using geronimo 3 (still definitely under development) or if you don't need significant geronimo services felix karaf.
>
> thanks
> david jencks
>
> On May 5, 2010, at 10:10 AM, Kevin Winterton wrote:
>
>> Hi,
>>
>> I have designed a Java application that runs like its own server and has php websites communicating directly with it. I was just wondering if there was any way I could use Geronimo to run this application on Geronimo, and if so were I should put it. It was designed in eclipse just as a Java Project, and when exported is made into a JAR file. Is it possible to use Geronimo to host an application like this, or can it only be used for things like servlets, JSP and EJBs.
>>
>> Please let me know if you need more information, I've already tried loading the JAR through the Console and it was placed in the App Clients section.
>>
>> Thanks,
>> Kevin
>>
>
>
Re: Running a non web java application
Posted by Marshall Crocker <cr...@cavs.msstate.edu>.
Not to hijack this thread but I was wondering the same thing.
In my web app, I want to be able to receive TCP data on a socket. That data will then be parsed and saved to a DB. Clients would connect directly to the TCP socket and transfer the raw data.
Currently the way clients pass data is through the URL such as http://website.com/Servlet?var1=0&var2=1... Since these are mobile devices transmitting using GPRS, I want to eliminate all the http overhead and move to a straight TCP connection.
Any thoughts?
Thanks,
Marshall
>>> David Jencks <da...@yahoo.com> 5/5/2010 12:45 PM >>>
You can definitely run it in geronimo (he says with unwarranted overconfidence :-)
You probably want to start it differently than you do as a standalone server. To give advice I'd need to know more about your server including...
-- how do it's clients connect to it
-- what geronimo services you want it to use.
-- what setup happens when you start it now
For future-proofing this at the risk of having more uncertainty now you might want to consider packaging your server as an osgi bundle and starting it with an activator (or assembling it with osgi blueprint) and using geronimo 3 (still definitely under development) or if you don't need significant geronimo services felix karaf.
thanks
david jencks
On May 5, 2010, at 10:10 AM, Kevin Winterton wrote:
> Hi,
>
> I have designed a Java application that runs like its own server and has php websites communicating directly with it. I was just wondering if there was any way I could use Geronimo to run this application on Geronimo, and if so were I should put it. It was designed in eclipse just as a Java Project, and when exported is made into a JAR file. Is it possible to use Geronimo to host an application like this, or can it only be used for things like servlets, JSP and EJBs.
>
> Please let me know if you need more information, I've already tried loading the JAR through the Console and it was placed in the App Clients section.
>
> Thanks,
> Kevin
>
Re: Running a non web java application
Posted by David Jencks <da...@yahoo.com>.
You can definitely run it in geronimo (he says with unwarranted overconfidence :-)
You probably want to start it differently than you do as a standalone server. To give advice I'd need to know more about your server including...
-- how do it's clients connect to it
-- what geronimo services you want it to use.
-- what setup happens when you start it now
For future-proofing this at the risk of having more uncertainty now you might want to consider packaging your server as an osgi bundle and starting it with an activator (or assembling it with osgi blueprint) and using geronimo 3 (still definitely under development) or if you don't need significant geronimo services felix karaf.
thanks
david jencks
On May 5, 2010, at 10:10 AM, Kevin Winterton wrote:
> Hi,
>
> I have designed a Java application that runs like its own server and has php websites communicating directly with it. I was just wondering if there was any way I could use Geronimo to run this application on Geronimo, and if so were I should put it. It was designed in eclipse just as a Java Project, and when exported is made into a JAR file. Is it possible to use Geronimo to host an application like this, or can it only be used for things like servlets, JSP and EJBs.
>
> Please let me know if you need more information, I've already tried loading the JAR through the Console and it was placed in the App Clients section.
>
> Thanks,
> Kevin
>