dailylog

what I learnt

Do you remember my posts about the fourth question and fast thursday ?

Here is another constant behaviour for another day – friday with constant question: what you learnt (during this week).

Your answer can be related to your job or to hobby or to whatever you want. Give just one small example of what you learnt, it can be something small and funny or huge and very important 😉 It’s up to you, but share your knowledge, make other start wondering what to do next, maybe you’ll inspire others to do something like you. It’s very informative attitude, you’re expressing yourself, showing you aren’t just a nerd 😉

Ok, so what I learnt ? I remember two things:

  1. below 0 degrees it’s hard drive a bike, not because it’s cold, but because a glass from the helmet freezes and you see nothing on the road 😉
  2. at last I understood what’s the difference between @Inject (JSR-330) and CDI (JSR-299), CDI bases on @Inject, but you cannot put equal mark between them

There were probably more, but it isn’t important to say about all of them, just two is enough. Please try, share your knowledge!

And as usual some nice presentation from TED – be smart, play games 😉

a fast thursday

Do you remember the post about the fourth question ? If so, there is a little backward of that. Some people like to talk, they talk a bit too much, especially in a case of the Daily StandUp. You should answer short and on topic, not to talk about what if … just answer the three questions: what I did, what I’m going to do, what blocks me.

The fourth question should be used to bit relax the discipline (it isn’t the Army ;-)) , but overused it can have negative influences. To stop that, we introduced a fast thursday – the day without the fourth question, you must answer the standard three questions. Nothing more.

Some says, if you talk too much, you did nothing 😉 So, don’t talk, answer!

Today I have another interesting presentation from TED, to sum up: “All right, so for some of you, this may be really, really out there.”

fourth question

Many of you know how the Scrum’s Stand Up Meeting is going to be held. There are three questions you must answer:

  • what did you do ?
  • what are going to do ?
  • what is blocking you ?

It’s quite obvious and after some time it’s getting bored also. So to change a schema you can add the fourth question. It was proposed by Pawel – our Scrum Master and I must say, it was a very good idea – think out of the box 😉

What is the fourth question ? It depends … as say consultants 😀 It shouldn’t be related to your tasks, it must be more about surrounding environment. Like for example: what kind of book have you read recently (not related to software development) ? or what was the lats boardgame you have played ? or what did you learn from the last week ? and so forth …

Why the fourth question is so important ? To break rutin, to express a different you, to show up that there is something other than coding 😉 When people are laughing, sharing experience in different areas they’re socialize, they become more a team of friends instead of a team of geeks. We aren’t just geeks, behind we’re humans 🙂

This time no new interesting TED’s presentation, but if you understand polish language you maybe find something interesting in talks from Confitura 2011 conference. Enjoy!

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Director : Keoni Waxman.
Writer : Keoni Waxman.
Producer : Binh Dang, Steven Seagal, Keoni Waxman.
Release : December 9, 2016
Country : Romania.
Production Company : Daro Film Distribution, Actionhouse Pictures.
Language : English, Pусский.
Runtime : 90 min.
Genre : Action.

Movie ‘Contract to Kill’ was released in December 9, 2016 in genre Action. Keoni Waxman was directed this movie and starring by Steven Seagal. This movie tell story about Harmon is a CIA/DEA enforcer investigating Arab terrorists captured in Mexico. With his team–seductive FBI agent Zara and spy-drone pilot Sharp–he flies to Istanbul and uncovers a brutal plot: Islamic extremists plan to use Sonora drug-smuggling routes to bring deadly weapons, and leaders, into the U.S. To prevent an attack on America, Harmon must turn these two savage forces against one another before his time–and his luck–run out.

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reactivation

I’ve decided to reactivate my technical blog (in Polish) hosted on Java Developer’s Network – why? I’ve stared missing strict technical entries and discussion over them. And there are plenty of english technical blogs out there, so I didn’t want to be another one here. I’m still planning to post some small examples in English, but larges one will be posted there.

Few weeks ago I was moved to join a new project and for last two weeks I was trying hard to recall how JSF 2.0 works. It isn’t an intuitive way and for a guy as me – who was growing up on request-response paradigmate of the Web – the whole components approach is a big fake 😉 The frameworks are cheating us and the users, http protocol is stateless and over it we try to build a statefull application. Jsfize are flying in the air 😛

What else is going on? A lot, I can say. A brand new Apache Struts 2 is out – the web page should be updated soon (on my todo list), also we’ve a few new very active contributors and a new PMC Chair. It looks like we’ve a new opening 🙂

The fourth thing, another we are working to prepare upcoming annual Warsaw Java User Group conference – Confitura 2011 aka Javarsovia. It’s a hard peace of wood now, but hopefully we redo it in something nicer 😉

And the last thing – a new Agile conference in Warsaw is over the horizon – Agile By Example!

That’s it folks …. naha … what’s left is some new presentation from TED – not only software can be open sourced 😀

not a live demo

I like the idea when the Iteration is done and you have a lazy day – an easy friday. In my new project that’s how we finished the last week. We had the whole day to read requirements for a new iteration, we were able to do some administrative tasks and to prepare a demo – not a live demo 😉

It’s a quite good idea – you don’t have to organize a room, invite people – forget about wasting time to look up for a best time and place for everybody. You don’t have to worry that something will blow up. You just sit and record what have you done – one demo per each User Story you have implemented. It must be short, 2-3 minutes with comments – this will allow people to follow you smoothly.

Juts all the demos on a server, collect all the informations and send an e-mail to everyone who was normally be invited to the room. People can watch your demos at any time, they can go directly to a demo server and do it yourself base on what they’ve seen. No one is frustrated or bored, they can just watch and give a feedback or ignore your e-mail and go home.

… but that isn’t your problem any more 😉

a bit confused

Yup, I’m. I’m confused because of lack of good TED presentations for last few weeks. Maybe I’m wrong and there were some, please feel free to show me them, because if so, it means that’s something wrong with me 😉

Never mind, back to business. I was working hard for last few weeks to release a new Apache Struts 2 version. The first attempt failed, as during the Vote progress a bug was detected – so it’s good, better sooner than later 😀 The second attempt is under Vote right now and I’m testing it – like a tester, by clicking here and there with the example Showcase application. It looks good, but Matt reported that tests for AppFuse are slower for version 2.2.3 comparing to version 2.1.8. Hmm… only two seconds but always …

I figured out how to check what can be wrong. In the latest version we’ve introduced mechanism to escape action’s name and method’s name as with Dynamic Method Invocation mechanism a hacker can use them for XSS attack. And as an Action is created per each request, that can slow down the whole framework. So I will use YSlow to measure load times for pages in the Showcase application, next I will rollback the changes regarding escaping and re-run the tests. And then compare the results.

Maybe it will give me the answer 😉

Staying around the Apache Software Foundation – proposal to join ASF is almost ready for OGNL project – it’s a very good information as OGNL was homeless for some time. Many thanks to Simone for taking care of that, lot of good work!

Another thing, I’ve started or rather joined a new project or better an on-going project 😉 It’s for financial industry – again someone could say – but it’s something different from what I had been doing for a previous bank. Anyway it should be funny and interesting – lot of JSF2ise, CDIse and JBossise stuff will be flying in the air 😛

What else is going on ? We’re working hard to prepare the next edition of the Warsaw JUG Conference – Confitura 2011 aka Javarsovia – see you there in June. On the beginning of May the GeeCON conference take place and hopefully I’ll be there as well.

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metrics and worm holes

It took me more time than I’ve expected to start the New Year on my blog. So here it is, the first post for the New Year! Happy New Year!

The last year I was at conference and attended to ‘s presentation about . This talk based on his post on the IBM’s web site about and the whole series.

The talk was about and – quite interesting tools to discover potential bugs and hard-to-maintain code in a project. What was the most important for me, Neal used the  project as an example, especially the class – you can find the details in the mentioned article. He presented how to prepare these metrics, how to read them and what they mean. A really interesting talk.

After all, I’ve asked Neal to give me more details about the problem and few days later I received an e-mail from him. I’ve followed his advice and inspired by his talk I’ve gave a promise to my self that I must improve that badly-looking code.

…. but wait, it’s just a badly-looking code. It had taken me another few weeks to discover it isn’t so important to improve that piece of code, it really doesn’t matter right now. There are plenty of places to improve code base of the project and so many users don’t care about that – UIBean doesn’t exist for them.

The current UIBean implementation do the job, it isn’t pretty or easy to maintain, but right now there is no one for whom it is important. No one complains about it. Some day I’ll refactor the code of UIBean class but today isn’t that day.

The conclusion is the same as for code optimization, you shouldn’t optimize too early, so you shouldn’t improve too early. Don’t throw everything and try to improve some bandwagonhost vps not-important part of your project. Don’t trust metrics by heart, they can lie to you, try to figure out what they mean in context of your knowledge of the project. They aren’t a silver bullet.

Today’s day brings to me another newsletter from web site and gave me answer to important question: the shortest connection between two points is …

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