how to interface servlet with running java app

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Marcel Hell - 14 Feb 2007 12:49 GMT

I have a path search algorithm application, that holds a large path
array in memory. I want to be able to fire search requests on this
application from jsp or servlets.

I don't know how to interface the ordinary application with servlet
requests from within tomcat. These requests should be handled through
tomcat's message queue.

Any idea or link for further information would be highly appreciated.

Marcel

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Marcel Hell - 14 Feb 2007 14:30 GMT

Maybe this is more precise:

> I have a path search algorithm application, that holds a large path
> array in memory, that for memory size reasons should not run as a servlet on tomcat. I want to be able to fire search requests on this
[quoted text clipped - 7 lines]
>
> Marcel

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Nigel Wade - 15 Feb 2007 09:27 GMT

> Maybe this is more precise:
>
[quoted text clipped - 4 lines]
>> I don't know how to interface the ordinary application with servlet
>> requests from within tomcat.

What I have done in a case like this is to make the external application an RMI
server. When a request comes in to the servlet the servlet makes an RMI call to
the external application. The external app. handles the request and returns
data to the servlet. The servlet then sends whatever reply is appropriate back
to the network client.

>> These requests should be handled through
>> tomcat's message queue.

I don't know what Tomcat's message queue is, so I can offer no advice on how it
might affect your requirements.

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Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555

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how to interface servlet with running java app

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