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Showing posts from October, 2014

Getting started with Bootstrap 3

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Twitter Bootstrap is an extremely popular front-end framework designed to build websites and web applications. In fact, it is a collection of tools leveraging HTML, CSS and some optional Javascript extensions like dialogs or tooltips and is used to facilitate user interface creation. Its documentation can be found here.  The simplest way to start working with Bootstrap is to use a content delivery network or CDN which delivers all the necessary files via the Internet. To use it all that is necessary to do is to add a couple of links to your HTML file as will be discussed later. A code snippet adapted from Bootstrap Getting started guide is shown below.

It is an HTML file. In this template the <!DOCTYPE html> declaration informs the browser that this page is authored using HTML5. The meta tag <meta charset="utf-8"> is used to instruct the browser to use utf-8 encoding. Then the X-UA-Compatible meta tag has something to do with Internet Explorer and in particular if …

How to run Glassfish 4 Web Application on OpenShift PaaS

There are a few options to publish a Glassfish 4 application in the cloud. One of them is OpenShift Platform-as-a-Service (PaaS), and although it doesn't offer a Glassfish cartridge, it provides a Do It Yourself (DIY) cartridge or application type which could be used to deploy a Glassfish web application.

 If you choose to work with Glassfish application server rather than JBoss or WildFly which are offered by the platform, you workflow will be a little bit different. When working with the Red Hat products, supported by the PaaS, one can publish an application in similar way to publishing to a local application server, particularly when using tools like JBoss Developer Studio. In the case of Glassfish a DIY application containing a Glassfish distribution should be created and then published to OpenShift and a war-file containing your application should be placed in the autodeploy folder of the Glassfish. In fact, you are publishing not your app but a DIY application, which is you…