Smalltalk Tidbits, Industry Rants

This article is enough to make you think twice about using BlueTooth for any data that matters:

The gun, which is called the BlueSniper rifle, can scan and attack Bluetooth devices from more than a mile away. The first version of the gun showed up at Defcon 2004, a hacker/computer security convention held annually in Las Vegas. You can read about it in Tom's Hardware show coverage report here.

While the early version was held together with tie-straps and rubber bands, this newest version has a much more professional look. The team at Flexilis learned a lot from making their previous gun, and have made many improvements. The gun is now bigger, stronger and more durable and the antenna is almost twice a powerful as the older model. It also has a small computer which eliminates the need for lugging around a heavy laptop just to gather data.

How hard was it to make this gun? John Hering, from Flexilis, says, "The parts are easily available for a few hundred dollars and you can make this gun in a long afternoon." In fact, in this two-part article, we will show you how to build your very own Bluetooth sniper rifle. A complete parts list is provided and we will document each step of the manufacturing process. We'll also report on our test "shoot" of some famous high-rise buildings in downtown L.A., namely the US Bank / Library Tower and the AON Tower.

With how lucrative a field identity theft is, I expect the hackers to be out in force with this technology. I remember when cell phones first came out - just about any trip into New York City was an invitation to have your phone hacked. Things are going to get worse in Wireless tech before they better.

I'll be offline most of tomorrow - heading up to NYC with my daughter's girl scout troop. They are seeing a play - "Mamma Mia". Long trip to take by bus - we head out at 7 am, and don't get back until 10:30. I should kill off some of my reading backlog, at least :)

There's an interesting Smalltalk event taking place in Belgium April 25th:

Web application frameworks in Smalltalk and Common Lisp

Monday, 25th of April 2005, Vrije Universiteit Brussel

The VUB (Programming Technology Lab), ULB (deComp), Belgian Assocation for Dynamic Languages (BADL) and the Belgian Smalltalk User Group (BSUG) are very pleased to invite you to two presentations about web application frameworks based on Smalltalk and Common Lisp. The two presenters are the main authors of the respective frameworks and will show you first-hand overviews and illustrate examples from, and experiences with, real-world use scenarios. It will be especially interesting to see what advantages the use of non mainstream dynamic programming languages brings to the table in a domain that is specifically targeted by Java and .NET frameworks. We also expect a heated discussion about the merits of the use of continuations in Seaside and the lack thereof in the Fractal Framework. ;)

The schedule for this event, held on Monday 25th of April, is as follows:

• 15:00 - 16:00 Avi Bryant, Seaside
• 16:00 - 17:00 Marc Battyani, Fractal Framework
• 17:00 - 18:00 Open Podium Discussion

This event is rounded out with a little reception.

The venue for the event is the Vrije Universiteit Brussel, Campus Etterbeek, Pleinlaan 2, 1050 Brussels, Belgium. For a description of how to get there see http://www.vub.ac.be/english/campEt.html

The exact location is still to be determined and will be announced at the following website: http://prog.vub.ac.be/events/2005/BADL/WebApplicationFrameworks.html

Please make sure to register for the event at the website, so we can plan ahead. The number of places will be limited according to the exact location of the event, and will be announced at the website.

Below are the abstracts of the presentations and the biographies of the speakers.

Avi Bryant, Seaside

On the web, abstraction is a dirty word. The dominant paradigms and philosophies of web development -- CGI, Servlets, Server Pages, REST -- provide only a thin wrapper around the low-level details of HTTP, and encourage you to use the rough stones of the transport protocol as the direct building blocks of your application. Web developers by and large reject any further abstraction in the way that assembly hackers once rejected structured programming: it's too inflexible, uses too many resources, and above all, it doesn't let you see what's really going on. As a result, web applications suffer the same problems now that assembly language programs did years ago; they're fragile, verbose, difficult to maintain and ill-suited to reuse.

That's not to say that better abstractions aren't available. The Lisp and Scheme communities have been working on them for years. Paul Graham's ViaWeb pioneered the use of closures, not query parameters, to capture application state in each link. Christian Quiennec showed how to use first class continuations to invert the flow of control of HTTP and put the server back in the driver's seat. Macro packages like htmlgen bring HTML into the language itself, opening up much more than a template system can provide. Meanwhile, object-oriented packages like WebObjects have demonstrated how to decompose the web page into a tree of stateful, interacting objects, allowing a finer granularity of development.

Seaside combines these ideas and others with the rich development environment of Smalltalk to provide a stable, complete, and innovative web application platform. This talk will introduce Seaside, and will focus in particular on the ways in which these abstractions can be leveraged to enable reuse: how to use closures, continuations, and intelligent HTML generation to destroy the intra- and inter-page coupling that is holding web development back.

Marc Battyani, Fractal Framework

Web sites have evolved from static documents to simple applications (eCommerce) and now to complete applications. Today, frameworks like J2EE and .Net are used for writing these applications made of tens to hundreds of object classes. These huge frameworks suffer from the limitations of their programming languages. Other frameworks, based on continuations, are emerging but still have limitations for complex applications. The Framework presented here has been used in production since 2001 and shows how the unique qualities of Common Lisp can boost the productivity by more than an order of magnitude for writing web applications compared to J2EE/.Net. This framework automatically generates the presentation, modification, validation, storage and data integrity layers of all the object classes of an application. It provides session management, web controls and a unique way for collaborative work. Internally, it makes extensive use of the Meta Object Protocol, CLOS generic functions, lexical closures, and on the fly code generation and compilation.

The speakers

Avi Bryant is the co-founder of Smallthought Systems Inc. Much of his work centers around the use of Squeak Smalltalk as a platform for commercial software development. As an actively contributing member of the Squeak community, he maintains its standard version control system, as well as packages for web development and relational and object database access. As a consultant, he has helped companies develop Squeak-based products for the travel, theatre, and finance industries, higher education, and mobile devices. Avi is based in Vancouver, Canada but currently residing in The Netherlands.

Marc Battyani's professional activities involve electronics design and writing software. He is the founder of Fractal Concept and the author of several open-source libraries (mod_lisp, cl-pdf, cl-typesetting). He works on various domains ranging from medical or industrial systems and applications to network infrastructure management web applications for banks as well as 3D software for robotized testing equipment, 6D real time positioning systems for the industry and the military, smart environmental radio sensors, etc. All the application software is written in Common Lisp with Fractal Concept's web application framework. Marc has a MSc in electronics and a MSc in computer science. He lives near Fontainebleau in France.

Sounds like a great event.

CNET has a report up on personal aviation - a personal helicopter:

Norris, who has developed high-end stereo speakers and an alarm that signals when a hip replacement might be in trouble, is one of the founders of AirScooter, a Henderson, Nev.-based company specializing in small, light flying vehicles. Some of its other planned products include an unmanned helicopter-like flying vehicle and a dimunitive "ready to fly" model that can be assembled in 15 minutes, the company says.

The AirScooter II, though, is designed for people. It weighs around 300 pounds and doesn't require a pilot's license, according to the company's Web site. The company is seeking regulatory approval but has said it expects to release the product this year

There's a QuickTime video here.

Here's today's daily update on Smalltalk Solutions 2005 - register today!

The VisualWorks VM Plugin Framework

presentation

Krishnamachari, Sudhakar: Cincom Systems

Monday 9:15 am to 10 am

Abstract: This VM Plugin framework is used to develop higher-performance C implementations of algorithms or code sections for use as primitives dynamically loaded into the virtual machine. The major part of the development effort is in working with Smalltalk coding to create all the methods that are finally exported as a C code file for compilation as a dll and relinking.

Bio: Sudhakar Krishnamachari is a Software Services Project Leader (Smalltalk), with Cincom Systems India Pvt. Ltd. He has worked with the Cincom Smalltalk Supports division prior to this for nearly a year. He has also worked with ACA-Europe a French CAD firm as a Manager (Specs and Testing) and handled development project team in C/C++ /VC++.

Born in 1967,in India, he is a graduate from the Indian Institute of Technology, Roorkee and a Masters in Computer Science from the University of Illinois, Urbana-Champaign. He was a practicing architect for nearly a decade, with experience in CAD, animation and development of office automation tools, prior to the shift into software development. He strives to contribute very actively to the spread of Smalltalk.

He has been working independently on the MySQL port of the VW as well as on development of a framework for multi-user group workflow based generic webapplication that can be supported on MySQL / Linux combination (as with any OS or DBMS VW supports). Also worked on software development related to architectural graphics in C/VC++ and on other related CAD/Graphics application developments.

See you in Orlando!

IBM is having pains - it's not just Sun, according to the Register:

During a conference call yesterday to explain a 9 cent per share earnings miss, IBM confessed it would consider a "sizable restructuring" but declined to detail what form this reorganization would take. Sanford Bernstein's meticulous analyst Toni Sacconaghi has predicted the restructuring will likely result in between 5,000 and 10,000 staffers losing their jobs. If there are job cuts, they will probably be tied to IBM's mainframe business and particularly mainframe workers in Europe, according to pundits. IBM's mainframe business suffered a double-digit drop in sales during the first quarter, and weak economies in Europe and Japan were blamed for the overall revenue miss.

Then again, is this just one of those "must hit the quarterly numbers" things that panic public companies?

In this week's screencast, I cover how I got BottomFeeder to deal with problematic XML data. When I first started writing Bf, other developers assumed that I had a tag soup parser - because they couldn't imagine how else I could do it. Partly, that's a blinders problem caused by the "final" declarations that litter the class libraries of Java and .NET - allegedly to help developers. Sure, they help - the same way a bullet hole helps ventilate things :)

Anyway - here's the compressed AVI file (187 MB), and here's the progressive WMV (27 MB). I went a little long this time.

I've had a few people ask about building BottomFeeder from the sources. First off, go to the Software With Style and register for the development program. You need WithStyle to build. After that, grab the download instructions from the BottomFeeder site. That zip file contains a script that will do a build, along with all the files you need to do a build. During load, you'll get a message about a missing pre-requisite - WSBundle. You can ignore that. WSBundle is just my application packaging of WithStyle. I do that so that it can be updated like the other components.

Oh - and make sure you grab VisualWorks non-Commercial first, if you don't have it already. You'll need the 7.3 release. One other thing - WS registrations have been having problems of late - Michael is on it, and should have it all working (and the backlog addressed) this weekend.

It seems that not all the B0rg occupants in Redmond are happy with their management - have a look at Mini-Microsoft. Mind you, find me any company and I'm sure that kind of commentary could be produced...

Some clever pranksters at MIT pulled a fast one on the WMSCI conference:

Jeremy Stribling said Thursday that he and two fellow MIT graduate students questioned the standards of some academic conferences, so they wrote a computer program to generate research papers complete with "context-free grammar," charts and diagrams.

The trio submitted two of the randomly assembled papers to the World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI), scheduled to be held July 10-13 in Orlando, Florida.

To their surprise, one of the papers -- "Rooter: A Methodology for the Typical Unification of Access Points and Redundancy" -- was accepted for presentation.

Heh.

Water on the Moon? NASA thinks there may be some there, which would make moonbases a whole lot easier.

The Register has the details. I'm not the only one who gets snarky when the subject is Sun :)

Every so often I run across well meaning people that need to be slapped with a huge clueByFour. Here's an example from the "My Turn" column in Newsweek. The author is one of those parents worried about excessive candy intake:

Regardless of the example my wife and I attempt to set, we're working against a lot of variables. So why don't we just grin and bear it? Well, because we understand what's at stake. According to a sobering report that recently appeared in The New England Journal of Medicine, the rapid increase in childhood obesity may cause today's children to have a lower life expectancy than I do—shocking in an age of so many advanced health-care techniques. It was only by explaining the risk of type 2 diabetes to my daughter that I was able to coerce her into eating her vegetables—at least for one night.

Looking at the picture in the story, I'd guess that the kid in question is between 8-10. Yeah, a deep explanation of Type II Diabetes is a great way to encourage eating of vegetables. I've never really had that problem with my daughter. Why? Well, we've made sure that fruits and vegetables are available at every meal, and - more importantly - we haven't gone into hysterics at the site of candy. The guy who wrote that piece sounds like the kind of self righteous a****** that everyone else in the neighborhood hates, because every encounter with him leads to a lecture on healthy living. Bah.

Set a good example, make good food available, and don't get all paranoid about candy - your kids will get the message just fine. Or you can do what this guy does, and have every meal turn into an epic battle.

Those funny guys at Gartner sent me a link to a survey they wanted me to take. I figured it couldn't hurt, so I clicked the link. Here's what I got in Firefox:

Microsoft OLE DB Provider for ODBC Drivers error '80040e10'  
 
[Microsoft][ODBC Microsoft Access Driver] Too few parameters. Expected 1.  
 
/survey/Include/SurveyUtility_inc.asp, line 307
 

So I tried it in IE, and it worked fine. Even better - if I toggle a plugin setting so that Firefox reports itself as IE, it works fine in Firefox. So Gartner's inept web gnomes specifically look for the Agent String and die on non IE ones (with a stupid looking error message). Explain to me again why anyone takes their advice seriously?

We lovers of bad movies have a full plate coming from Sci Fi Channel. I mean, how can I go wrong with this:

Squid/Tentacles (working title), a creature feature starring a giant squid which attacks the crew of a treasure-hunting expedition.

Here's today's spotlighted presentation:

Home grown relation database mapping and management system used with large real life Oracle 9i database application

presentation

Jamrich, Jozef: Prescient

Monday 9:15 am to 10 am

Abstract: This presentation will concentrate on the following.

• explanation of the basic design of the mapping and management system
• explanation of the performance issues experienced
• explanation of the solutions

The system is currently used in real life application with over 300 tables with as much as 900 mil record per row. The daily data feed includes files from Auto-Zone, Target,... with 100,000 rows and more of data to process.

Bio: Jozef Jamrich is a system architect at Prescient.

See you in Orlando!

Dare Obasanjo points to yet another case of spammers abusing the commons - Blogspot has gone to spam heck, and the various tagging schemes (Technorati, de.icio.us) are being abused:

A very high percentage of the spam blogs that we process at PubSub.com also come from blogspot. We’ve got more serious “problems” in Japan and China, however, for the English language, blogspot is pretty much “spamspot.” It is, as always, disappointing to see people abuse a good and free service like that offered by Google/Blogspot in such a way.

And then there's:

All Blogspot blogs right now are included in every Feedster search by default. And now, due to the massive problems with spam on Blogspot, we're actually at the point of saying "Why don't we make searching Blogspot optional for all Feedster users". What's going on is that spammers have learned how to massively exploit Blogspot -- to the point where at times 90% of the blog traffic we get from Blogspot is spam. Now that's bad. Actually this spam issue just plain sucks. And its starting to ruin the user experience that people have with Feedster.

If Blogspot supported categories, Dare's right - things would be even worse. Here's a question I have - what's Microsoft doing to combat this with Spaces? I can see where combatting spam blogs would be pretty hard with a free service. IMHO, this falls back to a very old adage: You get what you pay for. If the service is free, you pay one way or another...

If you updated BottomFeeder yesterday for a non-Windows platform, or via the baseapp-*.zip file, then you didn't get a few important files - my packaging script didn't include them. Just grab the appropriate baseapp-*.zip file now, and unzip it in the Bf directory. Let it replace everything (after quitting BottomFeeder), and restart. The missing stuff? A few icons, and the latest message catalog.

This note in cls may be of interest to VSE users:

After a flurry of activity on the Visual Smalltalk Enterprise mailing list, Kent Beck has agreed to open source Profile/V (a performance profiler for Visual Smalltalk) under the CPL 1.0 license.

Update: Dan Poon uploaded the code to our wiki.

Matt Croyden notes that Comcast was having problems last night - DNS lookup was broken (again). It was fairly widespread (again) - I spoke to a friend in LA via IRC, and he was out as well. Either there's a sustained attack hitting Comcast, or they are doing something very, very wrong...

I've been reading "Krakatoa: The day the Earth Exploded" recently - it's a fascinating summary of the huge volcanic explosion of 1883. Apparently timely as well - take a look at these two stories of an eruptions on Sumatra - here and here. These things can be nasty - the Pinatubo eruption in 1991 cooled the planet for a few years, for instance.

Nothing in modern memory compares with the "year without a summer" - 1816. It was popularly known as "Eighteen hundred and froze to death". Here's some basic info from the Wikipedia page:

The unusual climate aberrations of 1816 had the greatest effect on the American northeast and northern Europe. Typically, the late spring and summer of the American Northeast are relatively stable: temperatures average about 20 25 °C (68 77 °F), and rarely fall below 5 °C (41 °F). Summer snow is an extreme rarity, though May flurries sometimes occur.

In May of 1816, however, frost killed off most of the crops that had been planted, and in June two large snowstorms resulted in many human deaths as well. In July and August, lake and river ice were observed as far south as Pennsylvania. Rapid, dramatic temperature swings were common, with temperatures sometimes reverting from normal or above-normal summer temperatures (as high as 35 °C, or 95 °F) to near-freezing within hours. Even though farmers south of New England did succeed in bringing some crops to maturity, maize (corn) and other grain prices rose dramatically. Oats, for example, rose from 12 cents a bushel the previous year to 92 cents a bushel.

All of that was caused by a large eruption in - you guessed it - Indonesia (then the Dutch East Indies). It's too far back to know the cause for sure, but something very similar happened in 535, as recorded by Byzantine historians:

In the years 535 CE and 536 CE, several remarkable aberrations in world climate took place. The Byzantine historian Procopius recorded of 536 CE, "during this year a most dread portent took place. For the sun gave forth its light without brightness ... and it seemed exceedingly like the sun in eclipse, for the beams it shed were not clear.". Tree ring analysis by dendrochronologist Mike Baillie, Queen's University, Belfast, shows abnormally little growth in Irish oak in 536 CE and another sharp drop in 542 CE, after a partial recovery. Similar patterns are recorded in tree rings from Sweden and Finland, in California's Sierra Nevada and in rings from Chilean Alerce trees.

If one of those volcanos in Indonesia goes in a similar fashion, we could have a very nasty couple of years in front of us. Let's just hope that they don't - The people of that region have suffered enough, and the modern world is less well prepared for that kind of disaster than the early 19th century world was, IMHO.

Adam Connor asks a fair question about complexity in development languages:

Java’s generics don’t have anything like C++’s power — beyond hiding casts, I’m not sure I see much benefit at all — so they aren’t used this way. But Java abounds with other features that are used and abused: classloaders, reflection, dynamic proxies, aspect-oriented programming, and now annotations. Again, the core problem is that the language wasn’t really designed for this level of dynamic behavior, so features such as reflection or dynamic proxies are hard to read and understand. (That is not to say that Java isn’t an advance over C++, where such features are so hard that they simply wouldn’t be attempted.) Again, it’s obvious that more dynamic languages have existed for years, e.g., Smalltalk. Ruby seems like a new language in this vein.

Is every language fated to push at the complexity barrier until it falls over in a heap?

Until people stop trying to recreate dynamic features in rigid languages, yes. Watch Java and C# get more and more baroque over the next couple of years, as "power" gets added to each...

Doc and Dave Winer dislike the "It's a Small World" ride at Disney. I've always rather liked the ride - iirc, it originated at the Worlds Fair in New York City. My daughter loved the ride when she was little. It's no thrill ride (lol), but it's not horrible either. I think they complain way, way too much :)

Even Scoble has cut back on the scope of his reading:

I've noticed something. I haven't been reading my feeds very regularly for the past couple of weeks. I feel more ignorant. But I'm happier. The neat thing is that my aggregator continues to gather weblog posts and whenever I have time, I can read a feed or two. But not putting the pressure on myself to read 1,300+ feeds every night sure is making life more enjoyable.

I always thought 1300 feeds sounded like too many - but I'm sure the amount you can read varies by person (and the level of other responsibilities). For me, I've noticed that I start to feel overloaded every time I get near 300 feeds. I've been holding at just under 270 for a few weeks now.

We've got one of our corporate marketing folks blogging on the site now - Dale Wolf is running the Simplicity blog. This blog will likely end up being multi-author, extending up into other parts of Cincom's management. Stay tuned - and subscribe here.

I just love this sort of story (from MSNBC) - a "what are the blogs saying" segment. I'd quote it, but it's a video segment. The upshot - it's the new "man in the street" segment, with MSNBC peddling the notion that the view from a handful of blogs (never mind the subject) is somehow meaningful. This is every bit as meaningful as Jay Leno's "Jaywalking" segments. There are (quite literally) millions of blogs - would it be too hard for the mainstream media to accept the notion that it's impossible to distill that all down into a 5 minute "what the blogs are saying" segment? Looks like it's about as hard as getting pizza with extra sauce...

The showstopper bug turned out to be a configuration issue. In early builds of 3.9, we had turned spell checking off. It should now work in the XML editor, so it got turned on again. That's when I started having bizarre crashes. I didn't put the two together until Michael gave me a hand with it this morning - I had never copied the various pieces of the spell check system to my 7.3 development directory, and that was the source of the problem. I bundle all of that with the builds, so it wouldn't have actually affected the runtime - but I never got that far.

So, the upshot is - candidate build time...

Sam Ruby gives a nice summary of them - especially useful for people who aren't that familiar with Smalltalk or Ruby.

I have no illusions about Verizon DSL - I've heard friends complaints, and read plenty of others. On the other hand, after the last couple of weeks of Comcast flakiness, I think some local competition would have to help. Last week's outage looked an awful lot like a large scale DNS attack (Comcast has not said anything to that effect). Things were flaky last night in exactly the same way, which started me thinking that the earlier outage may have been less harm and more foul. Now there's an outage just in my node. Sigh.

I've just updated Silt - there's a web interface for updating posts now. The files are in the public Store, along with the new code. The new behavior is active on this server

Read this post, and you'll understand why the CLR isn't really ready for Smalltalk. Heck, I can grab the call stack from inside BottomFeeder - a running Smalltalk application.

Janko Mivsek just announced a new version of AIDA-Web, the web application framework he's been using (and developing) for quite some time now. It's a mature, robust product:

Dear Smalltalkers,

AIDA/Web is standalone web server and framework for complex web applications, with rich collection of web components to build web pages programatically, MVC-like separation of presentation from domain, fully REST-aware with automatic and persistent url links, with integrated session and security management and many more...

It took whole 2 years since last public release and here is newest Aida: ftp://ftp.eranova.si/aida/aida-4.0.4.tar.gz

...with a lot of new stuff:

• CSS support
• nicer graphical design, some demos added
• smarter components like ViewTabs, WebMenus,
• much easier work with tables with WebGrid (see demo)
• support of Wiki syntax in any text
• help support added to every view, can be edited online
• images as methods, so that you don't need separate image files
• web clipboard to cut/copy/paste url links around
• object versioning support
• easier programing of view and action methods
• reorganization of packages, refactoring of WebElement hierarchy
• file upload support

Installation:

• load parcel Swazoo.pcl (0.9.96 !)
• load parcel AIDAWeb.pcl
• doit SwazooServer demoStart
• in web browser open http://localhost:8888

More on http://www.eranova.si/aida, http://wiki.eranova.si/aida

Enjoy!

Janko Mivsek

Eranova d.o.o.

Ljubljana, Slovenia

The SwS guys addressed the insertion point issue in the editor (a problem only for the post/comment tool), and that was the last thing I was waiting for. Rich sent me the updated docs yesterday, and I've got all of those posted. The builds are done, and I'm in the process of uploading 3.9 to the server. Once that's done, I'll post another announcement - and it'll be time to move on to the next release.

Update: Looks like I have a potential show-stopper in the post tool. So, this will just be another dev upload.

I'm going to start posting some details on StS 2005 daily - here's some details on one of the talks you can see by attending:

Object-Relational Mapping

presentation

Knight, Alan: Cincom Systems

Monday 8:30 am to 9:15 am

Abstract: Abstract: Few areas arouse as many different opinions as storing objects in relational database. There are some fundamental issues in doing this efficiently. Also, we often don't have the luxury of designing our own schema, but have to deal with one that does not correspond well to our object model. This presentation outlines some of these problems and the way they are addressed in the open-source GLORP framework (http://www.glorp.org), as well as how we plan to move forward on database mapping software in future releases of VisualWorks.

Bio: Alan Knight is the lead on the GLORP project, and has worked in relational persistence for many years. He was previously the chief architect for the TOPLink family of products, and was a member of the Sun expert groups on EJB 2.0 and JDO. He is co- author of Mastering ENVY/Developer (Cambridge, 2001) and has written and spoken extensively on a variety of topics. He is program chair of Smalltalk Solutions 2005.

I'll have more every day. See you in Orlando!

Slashdot has fresh things you can't possibly do anything about to keep you up at night :)

In Sam Ruby's comments I cam across this proposed efficiency for Atom (and presumably RSS) feeds: mod-speedy-feed. From the description:

Best of all, the content that's sent down, while smaller, remains valid Atom XML, so no real change is needed on the client side other than sending the new headers. All you need to do on the server side is compile and install the module, it works as a filter so any content that's served up with an application/atom+xml content type is automagically effected.

So to get this working, you need:

• A patched version of Apache so that you can support a new status code
• Changes on the client side to send the new headers

Exactly what is my motivation (for a tool like BottomFeeder) to support this? Only a handful of servers are going to support this in the short term - and, unless the Apache Foundation decides it's a good thing, only a handful of servers will ever support it. In other words - I have no motivation.

Here's another question though - what real benefits does this approach offer over mod-gzip? Most tools already support that, it works with arbitrary (Apache and others) servers, and XML text compresses remarkably well. Sometimes the flood of strange ideas is just amazing...

This season of "24" has jumped the shark so many times that you can hear the ocean when you hold the scripts up to your ear. Not only are the plotlines impossible - but the writers have succumbed to "no idea Star Trek mode". What does that mean? Well, you remember how on NextGen, when they ran out of ideas there would always be a Holodeck episode? Well, on "24", they keep going back to the "secreet government conspiracy" plotline. Whoo boy - I sure didn't see that coming.

Here's some information on a couple of the talks coming up at Smalltalk Solutions this summer - register now!

Smalltalk Solutions 2005 will be here before you know it. Make sure you sign up early to take advantage of the savings. Visit www.smalltalksolutions.com to register. Please feel free to email me at jsj@ksc.com to be removed from this list. Thanks!

Here are a few samples of what you can expect from this year's show in Orlando.

Number Crunching Smalltalk

experience report

Poon, Dan: Romax Technology Ltd.

Monday 2 pm to 2:45 pm

Abstract: For over 10 years, Romax Technology Ltd. have pioneered the use of Smalltalk in Engineering Design and Analysis, a numerically intensive domain and traditionally the preserve of FORTRAN and more recently C and Matlab. Many vehicles on the roads today have benefited from Smalltalk analysis.

Smalltalk was initially used for product modelling and visualisation - its uses now includes number crunching where it performs along side FORTRAN.

Smalltalk's USP is that it is such a simple language that, when supported with pair programming between numerical analysts and Smalltalk coaches, it quickly becomes a lingua franca, enabling esoteric numerical algorithms and domain knowledge to be melded with production software skills.

Once captured in Smalltalk, a numerical model is much more malleable than its FORTRAN counterpart, meaning we can easy parameterise the model and apply optimisation techniques such as genetic algorithms.

We will also discuss the political implications of getting engineering analysts and computer scientists to work in pairs, the strong business case for doing so, and how our org chart has evolved with it.

Bio: 16 years of OO development experience from the early days of version 1.0 C++ to OODBMS. From the early attempts at OO methodologies to Agile. Worked within Telecommunications, Foreign Exchange Options Trading, and now Engineering Design Analysis.

Monticello

presentation

Putney, Colin: Quallaby

Tuesday 2 pm to 2:45 pm

Abstract: In the last 2 years Monticello has emerged as a viable tool for source code management and versioning of Squeak applications. Having accumulated some real world experience with Monticello, we've designed a next-generation versioning engine which will form the core of Monticello 2.0.

This talk will examine three hard problems in versioning software, and explore Monticello's unique approach to solving them. Along the way, we'll also see comparisons to other versioning systems, including Store, ENVY and Monticello

First is the "repeated merge" problem. This occurs when we have two (or more) parallel lines of development. Repeatedly merging code back and forth between the two lines can create artificial conflicts during merges, forcing developers to explicitly avoid conflicts as they work. A good versioning tool allows developers to save or merge their work at any time, and records enough history information to prevent spurious conflicts from arising.

The second problem is also one of spurious conflicts. Often, during a merge, we want to apply only some of the changes implied by the merge. But this "cherry picking" of changes introduces a risk that either spurious conflicts will be interoduced to future merges, or genuine conflicts will be missed. Again, the challenge for versioning tools is to record enough history information to allow developers to work naturally, while still doing merges accurately and automatically.

The final problem is so difficult that most versioning tools don't even attempt to solve it. Only Smalltalkers would demand to be able to update a running program with new code, including the kernel on which the versioning tool its self is running! Though still quite experimental, Monticello 2 attempts to solve the "brain autosurgery" problem as well.

Bio: Colin Putney is a software developer at Quallaby Corporation, writing on network monitoring software in VisualWorks Smalltalk. He the author of OmniBrowser and co-author of Monticello, both open source development tools for Squeak Smalltalk. Though he has been programming for many years, he began working in Smalltalk in 2002.

Sci Fi Wire says that there's a remake of "When Worlds Collide" in the offing:

Stephen Sommers, director of The Mummy and Van Helsing, will write and direct a remake of the classic 1951 SF film When Worlds Collide for Paramount, Variety reported.

Mind you, I enjoyed "The Mummy" and "Van Helsing" well enough - based on the plotline of the '51 flick, I'd expect some Armageddon style effects.

I've updated the Wiki with information on the upcoming major release of Cincom Smalltalk (this coming winter). Check out the information page here.

I hadn't noticed that the logging on the server had changed - all the blog requests and feed requests are being logged separately, so as to make various results easier to find. The upshot is, referers weren't being updated over the last few days. That's all working again, and I can see where inbound links are coming from again. It's always something...

And speaking of it always being something - the grass needs cutting. Sigh...

Doc Searls has more information about that newspaper story, along with some constructive advice for the paper. The advice is useful for any newspaper:

Again, my purpose here isn't to play gotcha with the News-Press. The paper needs constructive help, not rebukes. It's a good paper. I read it every day. I'd like us to help make it better. So here are three suggestions for the paper: 1) Reach out to, and take advantage of, local bloggers, friendly and otherwise; 2) Encourage blogging by your own staff (no need to host, as the Scripps papers do - too complicated, and not necessary); and 3) Open those archives - not just to subscribers (registered or otherwise), but to Google and other search engines. Search engines are the reference sections of the world's new library. Excluding your work from that library reduces the paper's authority. For more and more of us, if you're not on the Web, it's like you don't exist.

Just to be clear, that added emphasis is mine. I know why papers hide their archives - they want revenue opportunities for that data. The trouble is, by hiding them they bury them down the memory hole.

Jonathan Schwartz explains Sun's stance on Open Source pretty clearly. Agree or disagree, this is good information, delivered without any caveats or lawyer-speak.

Scoble pointed to these videos, which Steve Rubel apparently found and publicized yesterday. It's an amazing piece of amateur advertising - it's actually better than a lot of the ads I've seen put out by Nike themselves.

Cyrus doesn't much care for tabs in browsers:

Ok, i seriously don't get tabs on Windows.  Hell, i don't get tabs on OSX either.  In the latter there's a great system called Exposé for that, and in the former the task bar does the job just great.  Once i start using tabs though things go all to hell.  On OSX i can't tell which FireFox/Safari window has the tab i want (since it's too small), and similarly in windows i find myself scanning the taskbar for a site i was looking at, but i can't find it because the task bar entry only lists the site that is the currently active tab.  This makes it so difficult to actually find the site i want and it ends up being far slower than just having a window available for each site.

Umm - maybe there's a way to change the default, but - On Windows XP SP2, if I have more than one IE window open, I don't get any useful information at all from the taskbar at the bottom of the screen - it shows the not so helpful tooltip "Internet Explorer (2)". I fail to see how this is better than tabs - heck, it's worse, IMHO. Is there something I'm missing here?

Doc Searls points to the simple errors of a Santa Barbara (CA) news outlet decrying the "lack" of local bloggers. Every so often there are "why don't they trust us" articles in the press - the thing is, if they can't execute a simple web search, what can they do?

I've been reading up on the history of WWI lately - check the last few posts in the "books" category to see what I've been reading. After the last post on this subject, I got a number of recommendations:

• 1919: Six Months That Changed the World
• The Guns of August - this one is a classic, and it's been on my list for awhile
• Not WWI related, but deals with the issues of the preceding century: The Congress of Vienna: A Study in Allied Unity, 1812-1822
• While buying the first two, the Borders clerk recommended another book to me: The
• Illusion of Victory: America in World War I
• Finally, I got this recommendation: A Peace to End All Peace: The Fall of the Ottoman Empire and the Creation of the Modern Middle East

I was able to buy the first 2 and the fourth; looks like I'll have to order the others. This only adds to my impressive reading backlog - who knows when I'll catch up. I started reading the first book immediately, and it became clear in the first 100 pages that the conference was very much a work in progress - they had few examples to draw on (The Congress of Vienna had been a long time ago, and it was a simpler Europe then). The confused handling of Russia alone was fascinating reading.

The more I read about that era, the more I see where the world we live in now came from...

I finally sat down with Turbo-Tax to deal with my tax returns (I know, timely of me). Anyhow - it seems that I had archived my 2004 returns off to a CD that's currently in an undisclosed location, and the only electronic copies I had for the app to pick up previous data entry from was the files for 2001, 2002, and 2003. Stupid app complained, saying it wasn't a "valid 2003 form".

Sheesh - it's not like previous versions of the save file should be an utter mystery to Turbo-Tax. Fortunately, I had paper copies filed away. Stupid app.

At this point I'm waiting on 2 things for the 3.9 release of BottomFeeder:

• There's a word wrap bug in the posting tool. Since the posting tool is one of the biggest changes in 3.9, and since it works with multiple APIs now, it's a stopper
• One more piece of Doc from Rich - which he's got coming shortly.

The code is pretty much frozen at this point - the only change I expect to see is the fixes for the posting tool. Stay tuned

You know your need for coffee is high when you end up chugging your first mug of the morning the way a college student approaches a beer on Friday night :)

WonderBranding has a post up decrying the declining state of service on a particular airline (I've never flown that airline, so I'm not going to mention the name - follow the link). The point I wanted to raise is the reach of unintended marketing. What's unintended marketing? It's what people say about your product or service after they use it (both positive and negative).

Word of mouth has always been critical for local businesses (restaurants, for example) - but less relevant for the bigger outfits. The easy spread of communication - most especially personal websites and blogs - has given word of mouth a huge megaphone. Tick off the wrong customer (i.e., one with a decently well read blog) and you could end up with a negative review that has a Google Rank as high as your own website(s).

And that's where we really get to find out which are the smart outfits, and which are the stupid ones. The stupid ones will deploy lawyers to shut the negative word of mouth down. The smart ones will recognize a problem and strive to fix it. This is exactly why I have RSS searches for the name of my company (Cincom), my name, and the name of the products I work with (ObjectStudio and VisualWorks) tracked in BottomFeeder. It's my way of staying on top of the commentary.

I've got the semi-weekly log results to look at again - this time I've got the results analyzed for the period between March 29 and April 8. There are three sets of results below:

• BottomFeeder Downloads sorted by platform
• General HTTP access to all parts of the cincomsmalltalk site
• Accesses to the XML feeds on cincomsmalltalk

BottomFeeder Report, April 9 2005

So the interesting thing to me there - there's apparently interest in getting an aggregator on a CE device - but the ARM based devices are more common. I find it interesting that the rate of downloads for Linux on Sparc outweighs the rate of downloads for Solaris. Next, the General HTTP accesses by tool:

HTTP Log Report, April 9 2005

Notice how there's far more Mozilla access than IE? That's not the case in the general browser population, but it certainly is in the developer space. Finally, here's the accesses if we look only at the XML feeds:

XML Only Log Report, April 9 2005

XML accesses are just under 50% of the traffic for the site right now - it's been hovering in that neighborhood for awhile now. The interesting thing is that the rate of Mozilla usage stays fairly high - Sage must be pretty popular. The analogous IE plugins don't look nearly as popular. One thing I'd be curious about from other blogs - the rates of usage of paid aggregators vs. the free ones. As you can see above, only one paid aggregator (the Mac based NetNewsWire) breaks out of single digits.

This post from Sam Ruby explains why Atom won't be the "magic balm" so many people seem to think it will be. Sadly, bad practices don't get fixed due to a change in the underlying format...

Today's screencast covers debugging a Smalltalk servlet. Check out the WMV here, or the compressed AVI here.

Next time you go to Best Buy, make sure you don't use any $2 bills. Sheesh.

I've been wondering if the major thing propping up the commercial Unix implementations is inertia; I got an email today that added a data point in that direction. I've had numerous people tell me that Linux on x86 hardware tends to be faster than either Solaris or HPUX - this email snippet goes into that. The first comment was mine, in response to a thread in vwnc on the startup time for VisualWorks applications. The response came from a customer:

"(b) Your Sun boxes are pretty slow/overloaded"

Definitely (b). We have a lot of ~450MHz Sun boxes and the latest generation of Sun hardware is only ~1GHz. We commonly see the same code run 4-6x faster on a cheap Linux box. We would love to support Linux, but our customer base just isn't very interested. Also note that these are server machines that are usually doing other things, so we don't have 100% of the machine at our disposal.

Which is in line with what other people tell me. It's likely the case that Solaris (et. al.) can scale to higher levels than x86 Linux - based on how many CPU's can be slammed into them, if nothing else. That advantage won't hold up much longer.

My local news reports that Maryland shares a dubious honor with New York - the longest average commute times in the US:

The latest U.S. Census study finds Maryland residents have one of the longest commutes to work in the country. Maryland and New York drivers spend 30 minutes on average traveling to work, according to the study.

In fact, residents of Queens County, N.Y., spend the most time on the road at 41 minutes.

In Maryland, Prince George's County drivers have an average 35-minute commute. In Montgomery County, it's 32 minutes; in Howard County, it's 30 minutes; in Baltimore City, it's 29 minutes; and in Anne Arundel County, it's 27 minutes.

The study also found that Maryland is one of three states with the highest percentage of workers who commute more than 90 minutes to their job.

Thank goodness I commute all the way from the bedroom to my first floor office, with a short side trip to the coffee maker :)

Paul Graham has put out a number of essays on hacking and development, relating them to art. Here, for instance, is a link to his Hackers and Painters essay. That one flew around the blogosphere, mostly with positive commentary. Not everyone agreed though - here's a dissenting view from Maciej Ceglowski. First, from Graham:

" The point of painting from life is that it gives your mind something to chew on: when your eyes are looking at something, your hand will do more interesting work."

"Hackers need to understand the theory of computation about as much as painters need to understand paint chemistry. You need to know how to calculate time and space complexity and about Turing completeness. You might also want to remember at least the concept of a state machine, in case you have to write a parser or a regular expression library. Painters in fact have to remember a good deal more about paint chemistry than that."

And the observations:

All of these statements are wrong, or dumb, or both, and yet they are sprinkled through various essays like raisins in a fruitcake, with no further justification, and the reader is expected to enjoy the chewy burst of flavor and move on to the next tidbit.

I am not qualified to call bullshit on Paul Graham when he writes about programming, history, starting a business, or even growing up as a social pariah, but I do know enough about art to see when someone is just making s*** up.

In Paul Graham's world, as soon as oil paint was invented, painting techniques made a discontinuous jump from the fifteenth to the twentienth century, fortuitously allowing Renaissance painters to paint a lot like Paul Graham. And the difficult problems the new medium supposedly helped painters solve just happened to resemble the painting problems that confront an enthusiastic but not particularly talented art student. I hope I am not the only to find this highly suspicious.

I had my doubts about his essay at the time it flew around - in particular, I thought his description of the sort of "great hacker" you want was exactly the kind of obnoxious prima donna that I could do without, thank you very much. But wait, there's more! I like the next paragraph in his post, but then again - I have a soft spot for rants:

I blame Eric Raymond and to a lesser extent Dave Winer for bringing this kind of schlock writing onto the Internet. Raymond is the original perpetrator of the "what is a hacker?" essay, in which you quickly begin to understand that a hacker is someone who resembles Eric Raymond. Dave Winer has recently and mercifully moved his essays off to audio, but you can still hear him snorfling cashew nuts and talking at length about what it means to be a blogger[7] . These essays and this writing style are tempting to people outside the subculture at hand because of their engaging personal tone and idiosyncratic, insider's view. But after a while, you begin to notice that all the essays are an elaborate set of mirrors set up to reflect different facets of the author, in a big distributed act of participatory narcissism.

Now, it's not all hits - Maciej points out that the analogies between art and software development have validity, and that Graham has written very well on other topics - he just doesn't think much of this essay (or others like it from Graham). Go ahead and read the whole thing - it's worth the time

Steve Rubel points to a bunch of local TV stations offering a variety of RSS feeds - the local (to me) Baltimore and Washington NBC stations both offer RSS, for instance.

Steve Rubel points to a useful summary of terms you'll see getting thrown around in the blogsphere.

This post targets Sun with questions, but the same questions could be asked of tons of companies in the software field: How hard should it be to get support?

So you have support plans. WHY ISN'T IT IN MY FACE? Sun - don't you want to make money? Support is a major component of income for many product vendors - and an even bigger component of income for the open source market. If you don't push it, no one is even going to know about it! It should be on your Java home page, your documentation home page, the API page. A small link, no one will care about it if they aren't looking for it, anyone wanting support will see it quickly.

Sun is hardly the only vendor that makes this hard.

Looks like Comcast suffered a general outage last night. I suspect thhey have some kind of VOIP solution for their phones as well - their phones were all weird too.

This is a weird sounding thing: blogging bootcamp:

The high octane blogging bootcamps help participants use emerging Internet tools like blogging, RSS, and RSS analytic services to improve their business's effectiveness in its online communities.

The first high octane blogging bootcamp will start May 14 at University of Michigan's Ross School of Business. The bootcamp immerses students in blogging so that they have a practical basis for assessing three elements critical to the newly emerging face of the Internet: pushbutton web publishing, xml syndication, and mass interaction. In combination, these elements allow companies to more easily discover and engage their online community, with potential to influence key customers and opinion makers.

Those aren't the hard parts. The hard part is writing content that people want to read on a regular basis. For that, a creative writing course might be more valuable. Seriously. Most of the people who ths course is aimed at don't need to be immersed in the technical details.

Well, sometimes the sort of connectivity issue I just talked about can be resolved by rebooting the cable modem. Bad idea. Now I have no connectivity at all (which means that this will only be visible later, when I have it again :) ). Anyway. I can't call the local Comcast number - I still get "all circuits are busy". I tried their 800 number - I got there, made a few jumps through the phone system, and then the phone system had trouble and told me it had to disconnect me. Now all I get from them is a busy signal. Sheesh - this is just bizarre...

And it comes back at bedtime :)