Spring Security is OSS framework for application-level authentication and authorization, which supports common standards and protocols. We will walk you through adding Spring Security to an existing application, by explaining what happens when you first add the dependencies, what to do next, and how to fix your tests. In this post, I would like to...
Very often, threads are an imaginary thing for programmers that you don’t always need to remember. Today I will go a little further and tell you about another new instance for many of you – ThreadGroup. If you are not too comfortable with the topic of threads, I highly recommend that you first understand the...
Hello Developers! In this article I wanna show you a few information about accumulating calculations on each elements during stream process in Java. According to my latest research, the functional paradigm in Java very often uses a one popular process which is known as map-filter-reduce. I will basically focus on the third one part –...
I would like to present you some smart shortcuts, thanks to which if you spend a lot of time programming, you will be able to save up to 1 hour of time per week. I would like to point out right away that I will not list all the existing IntelliJ hotkeys here, because it...
I suspect that if you have been programming in Java for some time, you have probably already used functional interfaces. Interestingly, sometimes you used them without being fully aware of it. This component appeared in Java version 8 and is now very much liked by developers. The semantics itself (and the way it is used)...
Tomcat – it’s such a tiger with a funny snout. But it’s actually a tool that you should know how to use. Apache Tomcat is a servlet container and web server that is used to host Java applications. Tomcat is an open source implementation of Java Servlet and JavaServer Pages technologies, released by the Apache...
I’ve seen a lot of tutorials in Internet related to Spring Batch tool, but most of them was too simply. I know that these guides can be great for basic understanding the main concept of that technology, but it is not enough to make an application that will find use in real life. In this...
Regular expressions are a powerful tool for text processing (searching, modifying, parsing). In Java, starting with version 1.4, classes and methods to deal with regular expressions are available as part of the standard set of packages. In this tutorial, I will show you the basics of this issue and how to use it (with examples...
Welcome back! We will continue to program the ESB bus with Mule. This is the third part of our Mule tutorial without Anypoint tool. We already have an environment, a ready domain module and implemented services (which even work!). If you want to go back to the previous parts, you can find them here: https://oslyk.com/index.php/2021/09/07/mule-standalone-runtime-without-anypoint-studio/...
Welcome to the second course on the Mule bus. Today we will deal with creating new custom services which will be working in this environment. In this part of the guide, I assume that you already have the application running and a new domain module installed. If not, then go back to the first part...