Roy Tutorials

Introduction In this post we will see how to install Mosquitto MQTT Client or MQTT.fx in Windows environment. In our previous tutorial we have seen how to install Mosquitto server. MQTT.fx is an user interface through which you can check messages arrive on topics. You have the option to connect to, disconnect from Mosquitto server. You can also subscribe to…

Introduction In this post we will see how to install Eclipse Mosquitto in Windows environment. Mosquitto is an open source message broker that implements MQTT protocol. Mosquitto is light-weight and suitable for low power computers to full servers.

Introduction We will discuss here how to use CSS in WordPress plugin. We will use the same plugin we created in the example. We have seen how to use AJAX, jQuery in our previous tutorial. This example will also show you how to en-queue CSS file. Till now our simple email subscription form does the necessary things what it required. But in this…

Introduction We will discuss here how to use AJAX in WordPress plugin. We will use the same plugin we created in the example. We have seen how to create MySQL table in our previous tutorial. This example will also show you how to en-queue JavaScript files. Till now our simple email subscription form could not perform any action but in…

Introduction In this post we will discuss about how to create table with WordPress plugin. When you are writing a plugin for WordPress (a simple email subscription form), you will find that you need to store some information in the WordPress database. Certainly there are ways to store information and you can find more on this here but we will…

Introduction We will create Spring integration file adapter example. This example will show you how to transfer file from source directory to destination directory using file adapter in Spring integration or how to move a file from source to destination folder or how to poll a directory at an interval to move file to the destination folder. You may also…

Introduction In this post we are going to discuss how to create plugin in WordPress CMS (Content Management System). Creating custom WordPress plugin is simple and you just need to follow some steps to make it available in your WordPress site. We will create a simple email subscription form through which users will be able to subscribe to your recent…

IntellijIDEA I will discuss here how to make auto complete search case insensitive or remove case sensitive from auto complete search in IntellijIDEA. Case sensitivity makes you irritating when you are typing something partially to get complete answer for it. Because either you have to type in small letters or capital letters. But end users should not be bother about…

Introduction In this post I will discuss how to rebase feature branch with master branch in Git repository. You might have seen post on Git tutorial using command line tool or CLI (Command Line Interface) about how to commit and push code into the Git repository. I will explain here how to use command line tool to rebase feature branch…

Introduction We will create an example to read file content from source directory using file adapter in Spring integration. This example will show you how to read file content from a particular location and log the file content into console. You may further process this file content for your business requirements. Prerequisites Eclipse 4.12, Java 8 or 12, Gradle 5.6,…