Hi I need to write a program that will check the contents of a xml doc against rules taken from a database. I needed some tips on how to make it as efficient as possible. The specs were:

the engine - a daemon that listens for requests on a certain port. When the daemon is started up it hits the database and stores all the rules in memory.

this is how the process would work

client -> feeds xml doc -> the engine

than

the engine processes the rules against the values in the xml doc and returns -> xml doc back to the client with weather each rules passed or not

a sample of a rule might be: 
(##state## eq ca){
  ##max_ticket_price## = ##face_value## + 3;
}

[download]


The engine needs to be able to handle a lot of requests and be able to que requests somehow. I was thinking

client request -> que -> engine

engine -> que -> process rules -> client

any tips would be appreciated.

thanks

In reply to XML Process Engine by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.