Andrew Pollack's Blog

Technology, Family, Entertainment, Politics, and Random Noise

To servlet, or to Java agent...let....(updated)

By Andrew Pollack on 10/07/2003 at 07:21 AM EDT

So I'm sure a servlet would be "better strong faster" but do think its worth it in terms of deployment?

What I have is a page of html & javascript. As part of that page, I want to insert the body of a notes document. What I've done is to insert on the page where I want the inserted body to go, the following:

<script src='/mydatabase.nsf/testAgent?Openagent&id=232232434234234234234234'></script>

Now, testAgent is a java agent, that does a URL call to the document of the unid that matches "id". The way it calls that url, the body of the document is rendered with tags around it, so it can be easily stripped out by the java agent.

The java agent takes that html, applies URLEncode.encode() to it, then a String.replace('+', ' '), and finally returns it wrapped with:

document.write(unescape('" javas string "'));

What happens is slick as hell -- the java agents returns a dynamic javascript script, that has it print the html that makes up the rich text. Its way cooler than copying the rich text fields around because it doesn't bother with objects or graphics -- just the references to them. Its also cooler than pre-computing and saving the html, because the java agent can run as web user, and any embedded computed text in the document still fires.

Well, I like it.

So I know that it won't "SCALE" this way -- and I know I could make this into a servlet with little more than cut paste and an hour or two of banging my head on the desk.

But is it worth it? D6 serves this agent really damn fast already.

more thinking.... I doubt there's much real difference unless something gets added... [Comment]

Condering the load on the server.....

Either way, the second http call gets made, the second document gets rendered by the render engine, the string manipulation stuff within the agent fires. About the only real advantage in this case for the servlet would be the agent load process itself, since nothing is being cached.

If I were to track unids in a hashed index and say keep the html associated with them for some period of time -- or even better until some other call to the same servlet notified it that the document had been updated within domino, that would save some power on the server, but it ratchets up complexity.

Given that I want to distribute the template, calling on the server operator to load a servlet seems like a bit hassle without much payoff for most.

There are  - loading -  comments....

Other Recent Stories...

  1. 01/26/2023Better Running VirtualBox or VMWARE Virtual Machines on Windows 10+ Forgive me, Reader, for I have sinned. I has been nearly 3 years since my last blog entry. The truth is, I haven't had much to say that was worthy of more than a basic social media post -- until today. For my current work, I was assigned a new laptop. It's a real powerhouse machine with 14 processor cores and 64 gigs of ram. It should be perfect for running my development environment in a virtual machine, but it wasn't. VirtualBox was barely starting, and no matter how many features I turned off, it could ...... 
  2. 04/04/2020How many Ventilators for the price of those tanks the Pentagon didn't even want?This goes WAY beyond Trump or Obama. This is decades of poor planning and poor use of funds. Certainly it should have been addressed in the Trump, Obama, Bush, Clinton, Bush, and Reagan administrations -- all of which were well aware of the implications of a pandemic. I want a military prepared to help us, not just hurt other people. As an American I expect that with the ridiculous funding of our military might, we are prepared for damn near everything. Not just killing people and breaking things, but ...... 
  3. 01/28/2020Copyright Troll WarningThere's a copyright troll firm that has automated reverse-image searches and goes around looking for any posted images that they can make a quick copyright claim on. This is not quite a scam because it's technically legal, but it's run very much like a scam. This company works with a few "clients" that have vast repositories of copyrighted images. The trolls do a reverse web search on those images looking for hits. When they find one on a site that looks like someone they can scare, they work it like ...... 
  4. 03/26/2019Undestanding how OAUTH scopes will bring the concept of APPS to your Domino server 
  5. 02/05/2019Toro Yard Equipment - Not really a premium brand as far as I am concerned 
  6. 10/08/2018Will you be at the NYC Launch Event for HCL Domino v10 -- Find me! 
  7. 09/04/2018With two big projects on hold, I suddenly find myself very available for new short and long term projects.  
  8. 07/13/2018Who is HCL and why is it a good thing that they are now the ones behind Notes and Domino? 
  9. 03/21/2018Domino Apps on IOS is a Game Changer. Quit holding back. 
  10. 02/15/2018Andrew’s Proposed Gun Laws 
Click here for more articles.....

pen icon Comment Entry
Your Name
*Your Email
* Your email address is required, but not displayed.
Your thoughts....
Remember Me  

Please wait while your document is saved.