Posts about technology and arts.
My chrome died twice this morning. Checking the system logs I found some segmentation errors. Since it was not so recent version, I updated to the latest version of Chrome. But after that my Flash player was laggy/slowly, and I couldn't listen to Live Ireland Channel 1 no more :-( (I listen to either this radio or r/electrohouse on reddit.tv while I'm programming... I know, I'm a bit weird).
If you are having the same problem, here's the list of actions that I did to fix it.
TL;DR: Disable the Pepper Flash, as well as the Gnash or other flash libraries installed, download flash plug-in from http://get.adobe.com/flashplayer/ and enable it.
And now I'm happily writing this blog and code, listening to Salonika - Dublin City Ramblers.
Last year I became an Apache committer, and dedicated most of my time learning the Apache way, reading different mailing lists and getting used to the things a committer is supposed to know (voting process, keeping everything in the mailing list, and so it goes) and getting used to [functor] API.
In 2013 I hope I can help in the release of [functor], since Java and functional programming are getting a lot more of attention recently, probably due to the project lambda. But I also want to start contributing with the other components from commons (like math, io, jcs) and other top level projects (hadoop, nutch, lucene).
FUNCTOR-14 was created to enhance the generators API in [functor]. I'd worked on a branch for this issue, but needed some review in order to be able to merge it with the trunk. That's where you can see why Open Source is so awesome. Another Apache member, Matt Benson, created another branch to work on the project structure, but also to review the generator API.
I've been working in a client site without Internet connection, and behind a troll proxy. There is an internal yum repository, but many dependencies are missing.
There weren't git-all, git or git-core packages there, so I had to download and install from sources. I didn't pay attention to the
./configure output and proceeded with
Git was installed and ready to rock, but in my first
git clone https:// (SSH ports are blocked) I received: fatal: Unable to find remote helper for 'https'.
Turns out that I was missing libcurl-devel, though I did have curl. After installing libcurl-devel and installing from sources again all worked fine.
Apache Commons Functor (hereon [functor]) is an Apache Commons component that provides a functional programming API and several patterns implemented (visitor, generator, aggregator, etc). Java 8 has several nice new features, including lambda expressions and functional interfaces. In Java 8, lambdas or lambdas expressions are closures that can be evaluated and behave like anonymous methods.
Functional interfaces are interfaces with only one method. These interfaces can be used in lambdas and save you a lot of time from writing anonymous classes or even implementing the interfaces. [functor] provides several functional interfaces (thanks to Matt Benson). It hasn't been released yet, but there are some new examples in the project site, in the trunk of the SVN. I will use one of these examples to show how [functor] functional interfaces can be used in conjunction with Java 8 lambdas.
After the example with [functor] in Java 8, I will explain how I am running Java 8 in Eclipse (it's kind of a gambiarra, but works well).
Similar integration has already been proposed in JinFeng, by Olivier Renault. Basically, you write BDD stories in TestLink (a story goes into the Test Case summary), Jenkins retrieves these stories and executes them using a skeleton project.
There are many ways to use BDD. In some of them you write code like Java, Ruby or Perl, and in others you write a DSL. I started working with JBehave, but for this integration, I preferred to use a DSL - as TestLink doesn’t maintain source code, only test cases -, so I switched to easyb.