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Cas and Spring Security – Client
Continuing from my previous post, I’ll show the client integration to a CAS Authentication service using a little example. It will show how calling the authentication and how verify user credentials...
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5 minutes with – Spring Transaction Isolation Level
Understanding the isolation level of the database transaction is not so obvious as you might think. Let me lead you through the different isolation type in the way to find out the correct one to use in...
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Spring Oauth2 with Authorization Code
In this article I’ll show how to develop a solution that uses OAuth2 as authentication protocol with Authorization code during the flow process. Spring Framework has been used as backbone of the...
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JBoss Hornetq – Connecting from external App
In this article I tried to use JBoss Messaging service by an external Spring solution. The idea is to connect a console app (but it may also work as Web Application) that run in external JVM than JBoss...
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Spring distributed transaction with Atomikos and ActiveMQ
How can we put together different resource in a unique and atomic transaction? We’re speaking about Jta and distributed transactions, not only with Dao resources but also including a Jms resource. It’s...
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5 minutes with – Asymmetric Key
A short summer article about the asymmetric key pairs in order to guarantee an encrypted communication between two endpoints. I’ll show the main steps to achieve this aim using jdk tool (keytool) and a...
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Introduction to Apache Kafka using Spring
A frequently common problem today it’s to deal with big data that makes you adopt of different system in order to achieve the result of processing large data. One of the product that makes it possible...
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5 minutes with – Spring WebFlow
Spring Framework makes available a powerful package named WebFlow that allows the building of step-by-step web navigation. It’s common to have to deal with check out shopping cart in e-commerce web...
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5 minutes with – WebSocket
Build interactive Web Application by using relative new technologies as WebSocket can improve the user experience in the 2.0 Web World. Let’s have a look at how to get it by adopting Browser WebSocket...
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Junit testing with Spring
Testing code is an important step as writing code. Unfortunately this task is frequently put at last position, too near the project deadline and, for that reason, it stays unimplemented. In this post...
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Introduction to Apache Spark
Big data issues are common nowadays than ever before. In order to survive at them and be efficient we need to use tools that help us to elaborate them. Apache Spark can help us to work big data issue...
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Custom Jdbc Spring 4 Authentication
Spring Security makes available a good base customizable authentication layer to transform a plain web application into a secure one. In this article I’ll show some of the behaviours that are...
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Introduction to Spring Batch
How accomplish a job using Spring Batch solution in order to using the same Spring technology adopted for a Web solution. Easy to get, adding an administration monitor that helps to keep under control...
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5 minutes with – Spring Integration
A very common schema, nowadays, is the need of transforming data and processing them through a pipeline where, at the end, we get the data ready to use. In this article, I’ll show how to get it using...
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Java memory for singleton object
The Java Virtual Machine (JVM) manages the memory of the operation system where it’s running in order to obtain the best performance by optimizing the usage of it. In this article, I’ll put the focus...
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Introduction to Docker
A fast introduction to what is growing in the public interest. Docker is climbing the attention of the developers concerning the virtualization. In this article I’ll show you an easy example of how it...
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Junit testing with Spring – part 2
In my previous post on the argument (Junit testing with Spring), I skipped a very interesting part of testing attributes in the code which are inside methods. In these cases, Mockito it’s very helpful...
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Spring Microservices with MongoDb
Distributed applications is always a current topic in the articles and forum discussions; Microservices answers the need for application scalability and makes a good marriage with Cloud solution (AWS)...
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5 minutes with – Spring Object Pooling
Sometimes an object instance is not enough; specially, when you use a stateful classes on concurrency environment runtime, a pool of object is a good solution to achieve a multithreaded executions. In...
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Sample of Voice Authentication
Have you ever thought of using your voice instead of plain text string to get authenticated? It’s not science fiction, it’s called biometric authentication and, some company as Google, are going to...
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