Skip to content

All posts by moore - 90. page

Dropping the .com from package names

Dion wonders whether you need fully qualified package names on your java packages. For instance, is code that I write with this package declaration: package com.mooreds.foo; that much better than package mooreds.foo;?

Given that there are no other mooreds MLDs (from a search at network solutions):

mooreds.net is available.
mooreds.org is available.
mooreds.info is available.
mooreds.tv is available.
mooreds.us is available.
mooreds.cc is available.
mooreds.name is available.
mooreds.bz is available.
mooreds.co.uk is available.
mooreds.de is available.
mooreds.be is available.
mooreds.co.nz is available.
mooreds.at is available.
mooreds.com is unavailable.

I think the answer is that it doesn’t matter very much right now. And the chances of it mattering in the future are slim. I’d have to write some code with the same classname as another ‘mooreds’ packager, and want to import that code. Improbable, but possible. And if this situation arose, I’d have to rename my class, use a different package name (after all, packages don’t have to be meaningful) or use a different class.

What are the benefits of leaving off the com. declaration? Well, it saves everyone who wants to use it four characters of typing per import (those who don’t use auto importers). Four characters!

So, it’s safe to say that package mooreds.foo; and package com.mooreds.foo; probably won’t hurt anything, but given the cost benefit analysis, I can’t see why anyone wouldn’t use the full package declaration: package com.mooreds.foo; .

Now, if someone is using a domain they don’t own, well, that’s just braindead. 15$ and a credit card will get you a domain name. If you can’t afford that, then choose a TLD of your own creation; package lalala.mooreds.foo; won’t collide with anyone who is following the spec, and has an even smaller chance of colliding with someone who isn’t than just dropping the TLD.

In a different vein, I used to give an unusual name for restaurant waitlists, but oftne when they called out ‘Archibald’ I wasn’t attuned to it like I was to ‘Dan’ and more often than not, I missed my seating. Similarly, if you use a domain that someone else owns as your package name, well, you’re looking for trouble that you don’t really need to. I mean, really, isn’t software hard enough?

Java | moore |

Installing eRoom 7 on Windows XP Pro

This is a quick doc explaining how to install eRoom 7 on Windows XP Professional. It assumes that Windows XP Pro is installed, and you have the eRoom 7 setup program downloaded. This is based on the events of last week, but I believe I remembered everything.

1. Install IIS.

2. Make sure the install account has the ‘Act As Part Of The Operating System’ privilege. Do this by opening up your control panel (changing to the classic view if need be), double clicking Adminstrative Tools, then Local Security Policy, then expanding the Local Policies node, then clicking the User Rights Assignment node. Double click on ‘Act as part of the operating system’ (it’s the 2nd entry on my list) and add the user that will be installing eRoom.

3. Restart.

4. Run the eRoom setup program. At the end, you’ll get this message:

Exception number 0x80040707
Description: Dll function call crashed ISRT._DoSprintf

5. Re-register all your eRoom dlls by opening up a cmd window, cding to C:\Program Files\eRoom\eRoom Server\ and running

regsvr32.exe [dllname]

for each dll in that directory.

6. Run the eRoom MMC plugin: Start Menu, Run, “C:\Program Files\eRoom\eRoom Server\ERSAdmin.msc”

You should then be able to create a site via this screen.

Technology | moore |

Evaluating CMSes: cmsmatrix.org

One of the hardest decisions every developer faces is build vs buy. In general, build takes more money and time, but can deliver a program closer to the users’ needs with greater flexibility. Buy, on the other hand, limits extension of the software–only in ways that the creators have intended can you typically extend bought software–but delivers it quickly and for a known cost (unless you’re buying Oracle in which case, I hear, the price is negotiable :).

One of the harder components of deciding to buy is comparing features. This usually involves rummaging around websites, downloading evaluation copies and installing them. I’ve done a few of these (for open source portals, open source CMSes and bug tracking tools) and it’s interesting as well as daunting. There’s just a lot out there, and with limited time, I end up making decisions based on less than full fledged implementation. You can’t afford to entirely implement the solution using the proposed software, and every solution will cause you pain (including, for that matter, custom built solutions).

Regardless, a friend sent me a website that takes some of the tediousness out of evaluating CMSes. Sure, it’s not a replacement for downloading the software and trying it out, but it does give you a central starting point and makes it easier to quickly rule out possible solutions. I was also impressed by their inclusion of blogging tools and ease of use as well as the breadth of features compared.

Programming | moore |

Using XSLT to grab only certain RSS entries

So, as I’ve mentioned before, RSS can help you find a job. However, many jobs in my area are posted to a yahoo group (rmiug-jobs). I’m usually interested in seeing new contracts, even if it’s just to see how the market is doing. However, subscribing to this email list presents you with four choices:

1. Have your inbox flooded with job postings, most of which don’t apply to you. The benefit of this method is that when you do see one that applies, you can respond. Every single response I’ve received off of this list was in reply to a mail I sent minutes after seeing the job post; I’m guessing that almost 8000 members means that any job posters are flooded with resumes.

2. Create a filter so that all the mail messages (or even the ones with interesting subject lines) are pushed to one folder in your email client. This means that your inbox isn’t flooded, but that you have to read that folder regularly. I didn’t do that often enough to be worthwhile. In fact, as the messages piled up in that folder, I felt less and less able to read it. In addition, you may have issues if your filtering rules are complex (I want A and B but not C), though not if you use procmail.

3. Get the daily digest and miss out on timely job postings. I did this for a few months and found that I almost never read the large digest. I just felt guilty at the bandwidth wastage.

4. Use the search functionality to periodically check for postings of relevance to you. This helps with research, but doesn’t deal with the time issue. And, you have to remember to check periodically.

However, now there’s a fifth solution. Yahoo provides an RSS feed for that group. (Not all groups seem to have rss provided for them, and I couldn’t figure out how to turn it on for a group that I moderate.)

With the magic of XSLT, I was able to write a stylesheet which only grabs entries with interesting keywords in the title, thus avoiding the flooding problem. RSS is not real time, but it’s can be close (as close as I want/am allowed to poll the feed). Additionally, I’m a lot more likely to scan it than I would any of the email solutions.

Here’s the relevant XSLT:

<xsl:template match="item">
        <xsl:variable name="item_link" select="link"/>
        <xsl:variable name="item_desc" select="description"/>
        <xsl:variable name="item_title" select="title"/>
        <xsl:variable name="uc_item_title" select="translate($item_title,'boulderjava','BOULDERJAVA')"/>
        <xsl:choose>
           <xsl:when test="contains($uc_item_title, 'JAVA')">
              <li><a href="{$item_link}" title="{$item_desc}"><xsl:value-of select="title"/></a></li>
           </xsl:when>
           <xsl:when test="contains($uc_item_title, 'BOULDER')">
              <li><a href="{$item_link}" title="{$item_desc}"><xsl:value-of select="title"/></a></li>
           </xsl:when>
           <xsl:otherwise>
           </xsl:otherwise>
        </xsl:choose>

</xsl:template>

The reason for the translate cheesiness is that the version of the perl RSS module I’m using does not support the upper-case function (here’s a useful list of XSLT functions).

Programming | moore |

“The Enthusiastic Employee” Author Interview

Here’s a very interesting interview with one of the authors of “The Enthusiastic Employee”. Updated 12/2/2006: Apparently you now have to sign up to view the interview. Here’s a tidbit of the interview to let you know if you want to sign up for a free account:

Knowledge@Wharton: Your research shows most workers are happy at a new job for about six months before the honeymoon ends. What goes wrong?

Sirota: We are often asked how to motivate employees. Our response is, that’s a silly question. The real question is: ‘How do you keep management from destroying motivation?’ When we look at the data we find that people coming to a new job are quite enthusiastic. Most of them are very happy to be there and looking forward to meeting their new coworkers. But as you study the data you find morale, or enthusiasm, declines precipitously after five or six months. One theory is that there is a natural honeymoon that is bound to end. And yet we find that in 10% of companies the honeymoon continues throughout a worker’s entire career. So there are organizations that are able to maintain enthusiasm.

As a general proposition it is hard to be enthusiastic about an organization that is not enthusiastic about you. Let’s look at a few specific things. One is job security. We expect employees to be enthusiastic, loyal and engaged in an organization, but with the slightest downturn or prospective downturn we get rid of them. They are expendable. They are treated like paperclips. How can you be loyal and committed to an organization that seems to have absolutely no concern about your job?

“The Enthusiastic Employee” at Amazon.

Books | moore |

Article Clipping on the Internet

How many times have you been reading a print magazine and run across an article that would be of intense interest to one of your friends? This happens to me often, and when it does, I either rip out the article or give the magazine to my buddy (if it’s my magazine) or make a copy of the article, if I’m in the public library.

I also subscribe to Salon.com, a liberal online news magazine. On Sunday, I was talking to my mother about health issues and mentioned that today’s kids are the first generation to have a shorter life expectancy than their parents. This was from Growing Up Too Fat a recent Salon article. Like most of the articles, it was considered, well written, and entirely inaccessible to non subscribers. I would have loved to shot my mother the link to the article. This would have introduced her to Salon and its excellent journalism. However, I couldn’t do this easily because to view the article she’d either have to be a subscriber or view a commercial, neither of which she’d be willing to do.

Why isn’t the analog of the print article copying that we all have done available? I can think of a technical solution right off the top of my head that would generate a one time link that could only be used for a specific article (preventing someone from handing out subscriptions) and only once (preventing someone from posting the link to slashdot). My mother win, since she gets useful information via a reliable source (me). And Salon wins, because they’ve just gained exposure and also made me a happier subscriber.

There’s no reason why this same technology can’t be applied to any website that has subscription based revenues. Other than the development and the incremental bandwidth cost, it’s free to the website, and it exposes the website in a positive light to people who are, by definition, not subscribers.

Technology and Society | moore |

Book Review: Saving Capitalism From the Capitalists

If you’ve seen ‘Meet the Fockers,’ you probably remember the scene where Greg’s parents have constructed a shrine to him, full of 8th place medals and the odd 10th place ribbon. Greg apparently didn’t do too well in competition, but his parents loved him anyway. Not everyone is so forgiving, and most people had competition. To rephrase that, most people hate losing at competition–winning is just fine, thank you very much. In a free market system as well, most firms and people don’t like competition–it forces firms to respond to customers and people to work harder. However, the overall benefits to society are larger in a system where everything is competitive.

Saving Capitalism from the Capitalists, by Rashuram Rajan and Luigi Zingales, examines competition from an academic perspective, choosing to focus on financial markets. As you’d expect from two economics professors, they argue that markets are the most powerful economic invention of all time, and the solution to many problems facing us today is to make them more prevalent. However, the central thesis of their book is that markets depend on governments for vital infrastructure (rule of law, contracts, etc) and thus depend on politics. Because of the nature of politics the interests of a focused few can outweigh the interests of a diffuse many. This means that government regulation of markets can be easily hijacked by those with disliking competition to smother it.

The authors examine many cases where this hijacking occurred, from developed and developing countries and many different time periods. They focus on finance because free flow of capital has a magnifying effect on competition since upstart produces of goods often need capital. The focus is on incumbent firms, who are usually the party with the will and ability to influence the government to put the needs of the few over the needs of the many.

Other issues they tackle include the emergence of financial markets, whether finance benefits the rich disproportinately, and how the free markets of the early 20th century were rolled back in the 1930s and what replaced them.

Well written, if dense, this book would have been average had the last chapter, which proposes solutions to the political vulnerabilty of markets, been omitted. However, with their proposed solutions, which build on the foundation that they laid out in previous chapters, I feel that this book is a useful read for anyone interested in knowing how the world works and might work better. In addition, I think it’s wise and brave of them to trumpet that current markets aren’t really free but instead are usually hijacked by powerful incumbent firms. This is something that you don’t hear economists acknowledge often enough.

“Saving Capitalism From the Capitalists” at Amazon.

Books | moore |