Lord Petro

How true...

http://www.markfiore.com/lord_petro_0

DINO Race #2

Race #2 is finished and the standings are up (http://www.dinoseries.com/2008race2-BeginnerMen.htm) - 30th out of 32. Not very good I'm afraid.

The trails at Brown County State Park (http://www.in.gov/dnr/parklake/6725.htm) are a lot of fun but require a lot of stamina. That's because they have long downhill stretches that can be blazingly fast but require climbs that are at least as long. And since I'm not able to do longer rides (right now), I suffered tremendously.

The course started with us riding on about a mile of the paved North entrance to the park. Sounds easy right? Well, there's a section of this road that has to have at least a 30 degree incline! I did well enough on this section to not be last in my group and stay in the saddle but it took everything I had. In later climbs I had to hike to make it to the top.

Also, this was the first time I crashed during a race. Nothing bad, just a cut on my knee and some scrapes and scratches on my arm. I was going around a hill at a good rate of speed and my front tire got caught in the soft stuff. This normally wouldn't have been a big deal but it was right in front of a tree. Basically, my bike stopped and I kept going. Amazingly enough, I didn't have a bent wheel.

And to prove that I was actually there, a photo of me is up on the DINO site (http://www.dinoseries.com/photos/dinophotos.html). Click on the "2008 MTB Race 2" box, then click on the pause button - it'll make it easier to navigate. Now click on the "next" button till you get to the last page. There will be 3 photos. Click on the last one to load it. That's me on the bike! I just got finished saying bye to the wife and kids and am riding up towards the starting gate.

'Til next time...

My first (official) race of the season

I meant to put this out a few days after the race ended. Suffice it to say I finished, and I'm very proud of that. Unfortunately, I was 21st out of 25 in my age group, 45th in class (http://www.dinoseries.com/2008race1-BeginnerMen.htm).

It was a great day weather wise, if a bit too windy. The trails at Winona are pretty amazing. Nothing but single-track through mostly forest. I will definitely be doing this race again, hopefully doing a bit better next time.

I even had a cheering section. Right where the race ends, there's an opening so spectators can cheer you on. Dana and the kids were there, yelling "go daddy!" I decided to wave and almost crashed.

And if you're wondering, my bike didn't fail me this time. She's got a new chain and shifters that are well-lubed.

I can't wait for the next race!

PS. I just wanted to thank Erik again for getting us the Burley. It makes things like this possible and Jonas fell asleep in it!

Biking Again...

So I've finally begun riding my bike to work; today marks the 4th straight workday. It feels good to be back on the bike even though I'm totally out of shape. I'm also hoping to do some racing this summer as well.

I guess I should mention that I attempted a race this past weekend at the DINO Series (http://www.dinoseries.com/mtb.html) Spring Tune-up. Suffice it to say that I did so poorly that I didn't even end up on the results list (http://www.dinoseries.com/2008-bike-tuneup-BeginnerMen.htm). I think the reason I'm not listed (#511) as a DNF is that I didn't even complete a single lap.

Not that anyone should be surprised. I had several things going against me. For one, I'm completely out of shape. Over the winter I was on the bike less than 10 miles. Second, my bike was in pretty rough shape. I couldn't shift the rear derailleur between more than a couple of gears and to top it all off my chain broke.

So I will continue to ride when I can from now on. We met the parents of one of my daughters schoolmates and apparently there are trails near where we live. Maybe this weekend I'll try them out. Lord knows I need the exercise.

Sad but true...

http://www.markfiore.com/basic_budget_training_0

Oh, and I can't wait for this idiot to get out of office...

http://www.markfiore.com/learn_speak_intel_0

Something to remember about JSP EL

I just ran into a little issue with the JSP EL. When you're accessing a property, say 'admin', the EL will choose the boolean type (isAdmin) over the string type (getAdmin). I know I shouldn't have named them that way but I wanted to at least document this behavior.

Connect NetBeans 6 Betas to local CVS repositories

As a continuation to my previous post, things seem to have changed in
NetBeans 6 for the CVS client from the Milestones to Betas. No problem,
we can still make this work. Funny thing is, it's now closer to the
Eclipse setup I had to do :)

Anyways, follow all the steps from my previous post through step 4;
we'll be making a change to step 5.

First create a file called cvswrap.bat. All it needs to contain is the
following:

@echo off
setlocal enableextensions enabledelayedexpansion
%COMSPEC% /c %CVS_EXE% server
endlocal

From now on we won't be using the :local: connection method anymore to
connect to CVS, we'll be using :ext:. Basically, your CVS Root should
look something like:

:ext:username@localhost:/location/of/repo

username can be anything you like since it wont be passed to CVS
anyways. In the Checkout dialog the only other thing left is to have
NetBeans use an External Shell. Just put in the location of your
cvswrap.bat file and you're on your way.

YMMV

Idiots who don't know how to use Hibernate

It's not a good sign when you see code like this in the project you were hired to maintain:

// Initialize the user history collection in case the
// user changes his or her password during this session.
user.getUserHistories( ).size( );

This is wrong on so many levels I don't even know where to start...

Connecting NetBeans 6 to a CVS repository on a shared drive

I'm sure there are others out there who've done this before but I wanted to make sure it was documented for myself. So, here's what you need:

• NetBeans 6 M10 - older and new versions will probably work with this as well
• cygwin - standard install plus cvs

Here are the steps:

1. After NetBeans and cygwin are installed correctly, add the following environment variables:
   • CVS_EXE - <cygwin-install>\bin\cvs.exe
   • CVS_SERVER - <cygwin-install>\bin\cvs.exe
   • add <cygwin-install>\bin to your path
2. Add a place in your cygwin virtual filesystem to set up the mount points, I created a /projects/projecname for each.
3. Set up the mount points in cygwin (note that this is done from the windows command shell and not the cygwin bash shell):
   • >mount z:\shared\drive\path\to\cvs\repo /projects/projectname
   You'll have to do this for each repo you need to connect to.
4. Now here's the really weird part. In the CVSROOT directory of your repo, there's a file named config. You need to edit this file and remove all the new-lines. This is very important as you won't be able to connect otherwise.
5. All you need to do now is open up NetBeans and do a CVS checkout. The path will be something like :local:/projects/projectname

YMMV

No more .NET...Ever!

Just started a new job. Much better pay but more importantly not having to do .NET development. I can be happy again.

Why I won't be using Guice

Why won't I be using Guice? Because if I need help, the only good place to go is the mailing list which is hosted at Google Groups. This obviously isn't a problem at home where nothing is blocked, but at work it's a no-go. At the last three companies I've worked for Google Groups is blocked since it's considered chat. Now I could probably get some kind of allowance for the Guice group but who wants to go through the hassle. So for the time being I'll be sticking with Spring.

Code Monkey

New space heater from Azul

Just read about this on the Register. Should keep you toes warm on those cold winter days...

...and it runs Java too!

http://www.azulsystems.com/products/compute_appliance.htm

A .NET short-list

Since I've been working on the MS side of the fence for about 6 months now I thought I'd share some of the things I've seen.

MVC is pretty foreign to about 99% of .NET developers which I find rather insane. Good thing there are smart people like and Hammett, Ayende and JP. Of course there are good people working at MS. But to make this type of stuff work they have to create these huge frameworks and tools (Web Client Software Factory - it's open source though :).

Oh, and don't get me started with Visual Studio...

Not that anybody is listening, but I hope to blog a bit more often.

Dynamic, selectable table with Behaviour and Dojo

At work I'm working on rewriting a desktop app into a web app and of course it has to use Ajax to keep the feel. This app has several screens that contain data tables that can be filtered using a separate form field.

I first started building these tables by using the DOM completely, but that gets to be a little slooooow in IE, even on my 2gb dual-core laptop. To make things quicker, I would only load the data a page at a time and append new data if the user scrolled to the bottom. But that too was slow.

So I decided to start over. If you've taken a look at the LiveGrid widget from Rico you know what I want to do. Problem with the LiveGrid is that the table isn't selectable.

To start things off, you create the table (It's just a basic HTML table, I didn't have a week to figure out the CSS :).

<div>
<table id="datatable">
<thead>
  <tr><th>col1</th><th>col2</th></tr>
</thead>
<tbody>
  <tr tabindex="0"><td id="row0col0">col1</td><td id="row0col1">col2</td></tr>
  ...
  <tr tabindex="0"><td id="rowNcol0">col1</td><td id="rowNcol1">col2</td></tr>
  </tbody>
</table>
<div id="scrollbar">
<div id="dataHeight"></div>
</div>
</div>

That's the basic table. The sample has only two columns to save space. Of note is the scrollbar and dataHeight divs. This is the scrollbar that will drive the table.

Here's some CSS for style:

div, table, tr, td, th, tbody, thead {
 padding: 0px;
 margin: 0px;
 border: none;
}
table {
 width: 500px;
 float: left;
 border-collapse: collapse;
 border-width: 1px 0px 0px 1px;
 border-style: solid;
}
th {
 background-color: #ddd;
 border-width: 0px 1px 1px 0px;
 border-style: solid;
}
td {
 border-width: 0px 1px 1px 0px;
 border-style: solid;
}
#scrollbar {
 width: 20px;
 overflow: auto;
 position: relative;
 left: -4px;
}
#dataHeight {
 width: 1px;
 height: 100000px;
}
.datarow {
}
.datarowfocus {
 background-color: highlight;
 color: highlighttext;
}

Ok, no big deal so far. To make this table work, you need to have a couple of javascript libraries, Dojo and Behaviour. The code was built using Dojo 0.2.2 so I'm only going to assume it will work 0.3.1.

Here's the code:

var tableRules = {
 '#scrollbar' : function(element) {
  element.onscroll = function() {
   // TODO make an ajax call to get new data for table
   generateContent(Math.round(element.scrollTop/20));
  }
 },
 '#datatable tr' : function(element) {
  element.onfocus = function() {
   dojo.html.setClass(element, "datarowfocus");
   var index = 0;
   var counter = 0;
   for (var i = 0; i < element.parentNode.childNodes.length; i++) {
    // have to check the nodeType - firefox sees text nodes between
    // table elements (tr, td, etc.), ie does not
    if (element.parentNode.childNodes[i].nodeType == dojo.dom.ELEMENT_NODE) {
     if (element == element.parentNode.childNodes[i]) {
      index = counter;
     }
     counter++;
    }
   }
   selectedIndex = index;
  },
  element.onblur = function() {
   dojo.html.setClass(element, "datarow");
  },
  element.onkeydown = function(event) {
   if (!event) var event = window.event; // IE
   var scrollBar = dojo.byId("scrollbar");
   var singleRowSize = dojo.style.getContentBoxHeight(element);
   var pageSize = singleRowSize * 13;
   if (event.keyCode == 38) {
    if (selectedIndex == 0) {
     scrollBar.scrollTop -= singleRowSize;
    } else {
     dojo.dom.prevElement(element).focus();
    }
   } else if (event.keyCode == 40) {
    if (selectedIndex == 14) {
     scrollBar.scrollTop += singleRowSize;
    } else {
     dojo.dom.nextElement(element).focus();
    }
   } else if (event.keyCode == 33) { // pgUp
    scrollBar.scrollTop -= pageSize;
   } else if (event.keyCode == 34) { // pgDown
    scrollBar.scrollTop += pageSize;
   }
  }
 },
 '#datatable td' : function(element) {
  element.onfocus = function() {
   element.parentNode.focus();
  }
 }
}
Behaviour.register(tableRules);

var selectedIndex = -1;

function generateContent(row) {
 // this section takes the result of the ajax call and fills the table
 for (var rows = 0; rows < 15; rows++) {
  for (var cols = 0; cols < 2; cols++) {
   var element = dojo.byId("row" + rows + "col" + cols);
   element.innerHTML = "row" + (rows + row) + "col" + cols;
   // TODO implement empty rows when no data found
  }
 }

 // this is needed for ie because the table row will lose focus when you
 // click on the scrollbar to scroll - firefox keeps the focus on the table row
 if (dojo.render.html.ie && (selectedIndex >= 0)) {
  dojo.byId("datatable").childNodes[1].childNodes[selectedIndex].focus();
 }
}

dojo.addOnLoad(function() {
 // load data
 generateContent(0);

 // set the scrollbar div to the same height as the table
 var scrollbarHeight = dojo.style.getMarginBoxHeight(dojo.byId("datatable"));
 dojo.style.setMarginBoxHeight(dojo.byId("scrollbar"), scrollbarHeight);
});

There wasn't anything special about the javascript code that you couldn't replace Dojo or Behaviour with your favorite javascript library. You may have noticed that there's isn't any Ajax calls in the code, but hopefully with the comments you can see where it could be implemented.

Here's the complete file.

Enjoy!