Category Archives: Web

Live from TSSJS – Web Frameworks with Matt

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Live blogging from TheServerSide Java Symposium again, this time with Matt Raible, who is giving a presentation entitled “Comparing JVM Web Frameworks”.  He began his talk taking feedback from the audience on what frameworks people are using, with one humerous dialogue that proceeded as follows:

“How many people are using Struts 1?”.
One gentleman raises his hand.
“Poor bastard.  Are you using Struts with WebSphere?”
The gentleman nodded.
“Why haven’t you quit your job yet?”

1.  Web Frameworks – Too many?
In the non-Java market, jQuery has risen to the top but this hasn’t happened in the Java world.  Some people have criticized Java as having too many frameworks to choose from.

Matt is personally very much against Struts 1, as well as JSF.  He talks about how the founder of both, Craig McClanahan has essentially ditched Struts/JSF for Rails in around 2007.  He also quotes James Gosling as saying he hates JSF with a link to the YouTube video, although indicates he may have been referring to JSP.

2. Choosing a framework
Matt often talks about being asked which framework to use.  He has constructed a list of 20 criteria to determine which framework to use such as:

  1. Developer Productivity
  2. Developer Perception
  3. Learning Curve – Should be able to learn in under a week
  4. Project Health
  5. Developer Availability – Will you be able to find developers to hire who know the material?
  6. Job Trends
  7. Templating
  8. Components
  9. Ajax
  10. Plugins or Add-Ons
  11. Scalability
  12. Testing Support
  13. i18n and testing
  14. Validation
  15. Multi-language Support
  16. Quality of Documentation/Tutorials
  17. Books Published
  18. REST Support (client and server)
  19. Mobile / iPhone Support
  20. Degree of Risk

Matt reviewed a number of platforms and posted the resulting matrix online.  The top 5 ones based on these scores are Grails, Tapestry, Lift, Spring, and Struts2.  Often the 5, 6, and 7 providers change every few months.

3.  Business Decisions
Often companies hire consultants to reinforce web framework decisions that they have already made.  A lot of companies have a proprietary web framework that can be successful for their product.

4.  Controversary
Matt has been criticized for his scoring by members of the community.  He has posted a detailed explanation of how he calculated these ratings online.  As a well-read GWT developer, I disagree with some of his scores for GWT, especially templating which only scored a 0.5.

5. Matt’s favorite web frameworks

  1. Grails and Groovy:  Eeasy transition for Java developers.  It is also a gateway to Groovy.  He mentions some companies and developers resist Groovy because it is targeted only for Java developers and there isn’t a high availability of jobs.
  2. GWT:Great for Java developers who hate JavaScript.  The community is open and Google has done a good job growing a vibrant developer base.  The down sides, though, are that it is slow to test and requires Java knowledge to use.
  3. Ruby on Rails: Good for web developers, rather than hard-core Java developers.  The community is excellent.  The down sides is performance, testing, and type safety are limited.
  4. Spring MVC:  Easy configuration and usage
  5. VAADIN:  Excellent theme and layout support.  Uses the GWT API for developing view.
  6. WICKET:  Great for Java Developers.  Active community with creators providing a lot of support.  One downside is very little jobs available for WICKET developers.

Active Mailing Lists
One good measure of the health of a web framework is the number of developers asking questions and involved in the community, such as mailing lists and forum websites.  Some frameworks have hundreds of questions posted a month while others have 1-2 and are clearly not being used much.

Conclusion
Matt finished asking the question “What if there is no ‘best’ web framework?”, to which he spent time presenting competing argument about how people ‘shop’ for frameworks.  He compared shopping for frameworks with shopping for food and discussed an article with a researcher who did trending for how people choose food products.  “When we pursue universal principles in food, aka web services, we are doing ourselves a massive disservice”.  In other words, pick the frameworks that work for you, not neccesssarily the “best” framework.

Matt gave one of the best presentations I’ve attended at TheServerSide Java Symposium, and covered a large variety of web frameworks, while demonstrating expertise in each.  As a fellow consultant, I appreciate that he emphasized how quickly it is to pick up these frameworks as well as how easy it is to find a job with these skills.  At one point, he was one of only 3 active GWT developers in the Denver area and would get a call anytime there was a GWT job available.

Side note:  Matt recommends all Java developers learn about and know JRebel given its power, saying if you take away only one thing from this presentation it is that you should know JRebel.

firefox – I know I saw that web page!

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I can’t find that page!  I know I saw it yesterday evening, but where did it go?

This was the question I posed to Scott earlier today.  After telling him what I wanted to blog about, I said that I just needed to find the web page that had the information.

Firefox history

I was aware that I could use the “search bookmarks and history” feature to look at all the webpages I had been to recently.  I tried narrowing it down to Oracle.com pages but could not find the page that I had seen last night.

Scott told me that I could view my browser history by time.  Perfect!  I know I saw it last night and I didn’t go to that many pages then.

I just went to History > Show all history.  It lets you filter by today, yesterday, the last 6 months and older than 6 months.  I chose “yesterday”, sorted by time and found the page.  It was a java.sun.com page which explains why Oracle.com pages didn’t find it!

When it doesn’t work

This “feature” is a bit creepy.  What if you don’t want your history around for so long.

  • When in “private browsing” mode, your history is not stored
  • If you’ve cleared your browser’s history, it is not in the list
  • If you’ve gone into the history and right clicked “delete”, that item is not in the list
  • If you’ve gone into the history and right clicked “forget about this site”, no items from that domain are in the list.

If you are like me and nobody else has access to your computer, this is an awesome feature though!  I certainly wouldn’t have remembered where I saw that information.

—

As to what that topic I actually wanted to blog about was – you’ll have to check back tomorrow.  Hint – it’s about Java certifications.

find friends in social networking without a password

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I’ve always been concerned about the whole “give us your e-mail password and we will tell you which of your friends are registered on our service” thing on social networking sites.  To the point that I refuse to give out the password.  If I give out my password, the sites can do whatever they want with it.  Surely there is a better way!

While I’ve been reading about open standards for such things, today was the first day I actually saw it in practice.  I registered for GoodReads this week.  When clicking on find friends, you see the usual – click yahoo/hotmail/gmail/AOL/facebook/twitter/plaxo.  When clicking you have the option to type your password.  For some, you have an alternate choice.  Marked as “new”.  This alternate choice actually looks secure.

Summary of providers

Provider Allows providing password to glean contacts Comments on Non-password access to glean contacts
Yahoo Yes Worked well – similar to google as described below
Hotmail Yes Allows, but don’t have a hotmail account so untried
Gmail Yes Worked great; see below
AOL Yes No access
Facebook No Allows, but didn’t try.  I have to allow GoodReads access to write on my wall not just see contacts and didn’t want to go through the remove process at Facebook.
Twitter Yes Have to temporarily allow more access, but easy to revoke after from twitter’s connections page.
Plaxo No Not sure.  Plaxo wasn’t clear enough about what information they would be getting so I didn’t say ok.

Walking through gmail

  1. Click “Or: sign in directly on Gmail. (new)”
  2. Takes to page at a GOOGLE URL saying “The site www.goodreads.com is requesting access to your Google Account for the product(s) listed below.  Google Contacts“
  3. Choose “grant access”
  4. [do stuff on GoodReads]
  5. Optional which I did because I only want to grant one time access – remove GoodReads from accessing my contacts list:
    1. Go to Google Accounts
    2. Click “change authorized websites”
    3. Click “revoke access”

The good

I am giving google my password.  Google already has my gmail password and is just checking it is correct.  I’m not passing it through GoodReads.  Google is also telling me specifically what information they are letting GoodReads see.

The bad

Just because I e-mailed someone once and they are in my Google contact list doesn’t mean I know them.  I also have to trust GoodReads won’t spam all my contacts.  Both of these problems exist with the old “give me your password” method.  I’m willing to accept both of these on a reputable site and not willing to provide a password.  So great progress.