Agile Tour Vietnam 2015 in HCMC

I had a chance to join this event today. It was great!

For who don’t know Agile Tour, the following is the basic information from http://at2015.agiletour.org/

“Agile Tour has been a way for enthusiasts of Agile to spread the word about Agile practices and to share their experiences, both good and bad, within their local community. These non-profit events occur every year in October and November in several cities.”

Many valuable topics were shared to the community. The topic I like best is “Software Craftsmanship” from Mr. Sandro Mancuso. “Software craftsmanship” is an approach to software development that emphasizes the coding skills of the software developers themselves (wikipedia). I would like to share with you my notes about it:

Agile is actually “a quick feedback loop”. For example, we review the user stories after 2 weeks, we will get feedback; we apply TDD, we will get feedback immediately, etc.
Scrum, a Agile framework, is one main stream of Agile’s framework had a big issue that is technical debt. This is a reason why we should apply XP Practices such as TDD, Pair Programming, Automated Test, etc,… in order to improve the quality of products.
“If you want to go fast, you need to go well”. The reason is that we maybe build the project fast at the beginning if we don’t care too much about the quality of code, structure of project, technical, etc. And then, we will be slow down later on when project is bigger. Because we did not do well before and a lot of bugs occur.
“Building the right thing right”, that means Agile is somehow the “right thing” and we should build it right. According to that statement, we have the manifesto for Software Craftsmanship that is extended from Agile manifesto:

Not only working software but also well-craft software.
Not only responding to change but also steadily adding value.
Not only individual and interaction but also community of professional.
Not only customer collaboration but also productive partnership.
Best practices ever: continuous improvements and finding a better way than the old one.

Here is some pictures were take from this event.

Software Craftsmanship – Sando Mancuso

Behaviour Driven Development topic and my note book

The Pillars of remote team management – Lisette Sutherland

Conflict in team is a matter of choice – Michael Bertrand

I and my colleagues at Agile Tour 2015 HCMC

Thank you! See you on next events.

Comments

The HelloWorld example of JSF 2.2 with Myfaces

I just did by myself create a very simple app "HelloWorld" of JSF 2.2 with a concrete implementation Myfaces that we can use it later on for our further JSF trying out. I attached the source code link at the end part. Just follow these steps below: 1. Create a Maven project in Eclipse (Kepler) with a simple Java web application archetype "maven-archetype-webapp". Maven should be the best choice for managing the dependencies , so far. JSF is a web framework that is the reason why I chose the mentioned archetype for my example. 2. Import dependencies for JSF implementation - Myfaces (v2.2.10) into file pom.xml . The following code that is easy to find from http://mvnrepository.com/ with key words "myfaces". <dependency> <groupId>org.apache.myfaces.core</groupId> <artifactId>myfaces-api</artifactId> <version>2.2.10</version> </dependency> <dependency> <groupId>org.apache.myfaces.core<

Regex - Check a text without special characters but German, French

Special characters such as square brackets ([ ]) can cause an exception " java.util.regex.PatternSyntaxException " or something like this if we don't handle them correctly. I had met this issue. In my case, my customers want our application should allow some characters in German and French even not allow some special characters. The solution is that we limit the allowed characters by showing the validation message on GUI. For an instance, the message looks like the following: "This field can't contain any special characters; only letters, numbers, underscores (_), spaces and single quotes (') are allowed." I used Regular Expression to check it. For entering Germany and French, I actually don't have this type of keyboard, so I referred these sites: * German characters: http://german.typeit.org/ * French characters: http://french.typeit.org/ Here is my code: package vn.nvanhuong.practice; import java.util.regex.Matcher; import java.util

JSF 2 - Dynamically manipulating the component tree with system events

Let's suppose we want to modify the metadata (attributes) of elements such as render , requried , maxlength but we do not define in JSF tags. The manipulating components can be conducted in Drools files, for example. How could we do? I think that is what we need to change something of component tree during JSF life-cycle. JSF supports event handling throughout the JSF life-cycle. In this post, I use two events: postAddToView for scanning components tree and preRenderView for manipulating the meta of components before rendering to GUI. I modified my own project from previous post for this example. This is my first further JSF trying out with the project as I said before. :) We define the tags f:event below the form - a container component of the components which we want to work on. The valid values for the attribute type for f:event can be found from tag library document of JSF 2. <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:

[Snippet] CSS - Child element overlap parent

I searched from somewhere and found that a lot of people says a basic concept for implementing this feature looks like below: HTML code: <div id="parent"> <div id="child"> </div> </div> And, CSS: #parent{ position: relative; overflow:hidden; } #child{ position: absolute; top: -1; right: -1px; } However, I had a lot of grand-parents in my case and the above code didn't work. Therefore, I needed an alternative. I presumed that my app uses Boostrap and AngularJs, maybe some CSS from them affects mine. I didn't know exactly the problem, but I believed when all CSS is loaded into my browser, I could completely handle it. www.tom-collinson.com I tried to create an example to investigated this problem by Fiddle . Accidentally, I just changed: position: parent; to position: static; for one of parents -> the problem is solved. Look at my code: <div class="modal-body dn-placeholder-parent-position&quo

PSMDB - A MongoDB alternative for having Encryption At Rest

Encryption is the most popular tool for securing data both in transit and at rest. - For protecting data in transit, we can configure to use the TLS connection - For protecting data at rest, we can use Percona Server for MongoDB (PSMDB), an open-source alternative for MongoDB Enterprise. License PSMDB Docker images follow the SSPL license. Therefore, it is not a problem when I only have my containers deployed in on-premises environments. Running MongoDB Replication on OpenShift I have successfully installed the replication by following the guide Install Percona Server for MongoDB on OpenShift . In order to make it work properly with my needs, I disabled some features from the default deployment. See the detail in this change Basically, I needed to create a CRD (Custom Resource Definition) to let OpenShift/Kubernetes what PSMDB is. Then, I deployed the Operator pod. Finally, I deployed the PSMDB StatefulSet. I used NFS shares for Persistent Volumes. Create CRD for PSMDB 2 git clone http

vhandit

Search This Blog