28. March 2013
According to the TIOBE Programming Community Index (March 2013), Objective-C is the third most-popular programming language, behind Java and C. This is not surprising, as Objective-C is used to develop the thousands of Mac apps and 775,000 apps for iPhone, iPad, and iPod touch that are distributed via the App Store (Apple, as of January 2013). With more than 40 billion downloads, getting apps on the market as quickly as possible is highly attractive.
Unfortunately, the software’s (internal) quality often suffers from a short time to market. If the product’s lifecycle is longer than expected and technical debt is not paid off, development costs rise continuously. However, it is not that hard to build quality into the software right from the beginning. The new Clean Objective-C blog post series will demonstrate this. So, let’s get started… Read the rest of this entry »
2 Comments | 
Mobile Solutions | Tagged: clean, ios, ipad, iphone, methods, mobile, objective-c, private | 
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Posted by Bastian Helfert
21. March 2013
In the last post we used a demo application to discuss the development of maintainable Rich Web Applications with AngularJS. We introduced the most important concepts: The Model View Controller pattern and its application, the extension of HTML using directives and the routing concept to define the navigation between views.
This post explains how to integrate AngularJS into a build process based on Maven and shows how to develop automated unit tests and end-to-end tests for AngularJS applications.
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7 Comments | Enterprise Applications | Tagged: AngularJS, end-to-end test, HTML, javascript, JBOSS, Maven, RichWebApplication, unit test | Permalink
Posted by Till Hermsen
4. March 2013
The JBoss EAP6 and AS7 supports different approaches to mange server configurations. One approach is the command line interface (CLI). It is based on the De-Typed Management API and allows the execution of management operations. The CLI has support for CLI scripts with management and configuration operations that can be executed in a non-interactive mode.
In this post we want to introduce two ways of using CLI scripts to manage server configurations.
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2 Comments | Enterprise Applications | Tagged: as7, CLI, CLI Archive, cli script, command line interface, EAP6, JBOSS, JBoss AS 7, jboss-as-maven-plugin, Maven | Permalink
Posted by Heinz Wilming
22. January 2013
Compared to Thin Web Applications, Rich Web Applications imply a higher grade of client-side functionality and complexity as opposed to the server-side. The user interface of a typical Thin Client architecture is server-generated (per page), while rich clients are complete applications running in a web browser. This allows for user interfaces that are more user-friendly, more performant and offline-enabled. Such characteristics, offline capability in particular, are especially important for mobile applications.
HTML5 has established itself as an alternative to solutions like Flash, Java Applets and Silverlight. Compared to proprietary products it offers an open and platform-independent technology standard. Here, HTML and CSS describe the static structure as well as the design of the user interface, while the client-side dynamics is implemented using new HTML5-APIs and JavaScript.
The development of Rich Web Clients using HTML and JavaScript is complicated by maintainability problems though, as the combination of HTML and JavaScript alone offers no possibility to modularize and test the client in a clean fashion. AngularJS considers itself to be an HTML extension dealing with this problem in order to enable the development of maintainable JavaScript-/HTML based Rich Web Applications.
This blog post series introduces the JavaScript framework AngularJS. This first post explains the essential concepts of AngularJS, like the application of the Model View Controller pattern, the extension of HTML by so-called directives as well as the routing concept. In the second post, we will show the integration of unit and end-to-end tests as well as embedding those into a Maven build process.
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10 Comments | Enterprise Applications | Tagged: AngularJS, HTML, javascript, JBOSS, MVC, RichWebApplications | Permalink
Posted by Philipp Kumar
29. November 2012
As announced this is the last post of our series about clustering of the Redhat EAP 6 and JBoss AS 7. The other posts of this series were
Overview
This post will dig deeper into the clustering mechanisms of the EAP 6 and JBoss AS 7. We will show different solutions to multicast problems you will get in most cloud networks as well as some other networks. Infinispan uses JGroups to do its cluster communication. Cluster communication here means multiple things: finding other cluster nodes, providing a reliable transfer, implementing multicast communication even if there is no IP multicast available, identifying dead cluster nodes and a little bit more. In fact JGroups is able to do a lot more but Infinispan does not need all of the opportunities JGroups offers. The upcoming HornetQ version 2.3 which will be included in the EAP 6.1 will use JGroups for server discovery too. This post will explain the basic principles of JGroups and how to configure it in different network setups, especially most cloud networks.
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1 Comment | All, Enterprise Applications | Tagged: as7, Berlin, cloud, cluster, clustering, discovery, EAP6, Enterprise Application Platform, ha, high availability, Java, Java EE, JBOSS, JBoss AS 7, JGroups, multicast, Redhat, transport | Permalink
Posted by Immanuel Sims
24. November 2012
In the recent posts of this series we talked about many different aspects of clustering for the JBoss AS 7 and its quality assured version EAP 6, such as:
Until now, there is one important thing we have not covered yet: clustering of the messaging subsystem. The EAP 6 as well as the AS 7 uses HornetQ as default messaging provider. In this post we want to give an overview about the clustering abilities of HornetQ and explain how to use the various clustering features in combination with the EAP 6 or respectively the JBoss AS 7. We implemented a simple JMS client application to demonstrate the HornetQ clustering abilities.
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6 Comments | All, Enterprise Applications | Tagged: akquinet, as7, cluster, clustering, EAP6, Enterprise Application Platform, failover, ha, high availability, hornetq, JBOSS, JBoss AS 7, JMS, live-backup, load-balancing, messaging, Redhat | Permalink
Posted by Immanuel Sims
21. November 2012
Motivation
In a software development process, there are usually multiple environments, such as development, test and production, etc. The development team usually provides the QA users a test version before acceptance and production, as illustrated below.
If, however, the application contains assumptions about the environment, this chain is broken. Therefore it is good practice, for the deployment to make no assumptions about the target environment. A good way to achieve this is that the application servers provide the environment specific configurations of the application, such as datasource configuration or integration of other Enterprise Information Systems (EIS). But this is often not so easy.
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3 Comments | All, Enterprise Applications | Tagged: as7, configuration, deployment, EAP6, ejb-jar, JBOSS, property replacement, Redhat | Permalink
Posted by Heinz Wilming
9. November 2012
In the recent posts of this series about the clustering capabilities of the JBoss EAP6 and the AS7, we covered the basic concepts, managing cluster nodes in domain mode and scalable HA cluster topologies. This post will be about clustering capabilities for remote EJB clients. We will explain how to cluster EJB components and invoke them from a standalone remote client with client-side failover and load balancing.
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5 Comments | Enterprise Applications | Tagged: akquinet, as7, Berlin, cluster, clustering, EAP6, EJB, EJB client, EJB client API, failover, JBOSS, JBoss AS 7, jndi, load-balancing, lookup, Redhat, Remote EJB, remote-naming | Permalink
Posted by Heinz Wilming
1. November 2012
VisualVM is a useful tool for monitoring and simple profiling of JVM processes. It integrates various command line tools of the JDK such as jstat, jinfo, jstack into a graphical UI. The tool is part of the JDK since 1.6.0_07.
VisualVM start screen
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4 Comments | Enterprise Applications | Tagged: as7, EAP6, JBOSS, jboss remoting, jbossas7, JDK, jmx, jvm, Redhat, remote connection, troubleshooting, VisualVM | Permalink
Posted by Heinz Wilming
2. October 2012
Intro
While maintaining our development infrastructure, we regularly have to deal with a plethora of feature and plugin wishes. Because balancing all these different wishes, requirements and purposes is so time-consuming, we considered how we might increase our performance in this area. We designed and tested a method for this in the context of a Jenkins upgrade. We then invested some more time to create a sample HTML5 presentation that you may like to use yourself to try out threshold voting workshops in action.
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1 Comment | Uncategorized | Permalink
Posted by akquinet tech@spree
