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Showing posts from October, 2014

Getting started with Bootstrap 3

October 28, 2014

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 Explore...

How to run Glassfish 4 Web Application on OpenShift PaaS

October 13, 2014

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 yo...