Home » Author Archives: Alex Soto (page 3)

Author Archives: Alex Soto

Use reCaptcha in a Spring MVC web application

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A CAPTCHA is a program that can generate and grade tests that humans can pass but computer programs ‘cannot‘. One of strategies followed are showing an image to user with distorted text, and user should write text in input area. If showed text is the same as input by user, then we can ‘assure‘ that a human is on computer. A captcha ...

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Avoiding FORs – Anti-If Campaign

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Have you ever wondered how FORs impact your code? How they are limiting your design and more important how they are transforming your code into an amount of lines without any human meaning? In this post we are going to see how to transform a simple example of a for (provided by Francesco Cirillio – anti-if campaign), to something more readable and well designed. ...

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Testing client side of RESTful services

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Develop an application that uses RESTful web API may imply developing server and client side. Writing integration tests for server side can be as easy as using Arquillian to start up server and REST-assured to test that the services works as expected. The problem is how to test the client side. In this post we are going to see how ...

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Jenkins: Deploying JEE Artifacts

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With the advent of Continuous Integration and Continuous Delivery , our builds are split into different steps creating the deployment pipeline. Some of these steps can be for example compile and run fast tests, run slow tests, run automated acceptance tests, or releasing the application, to cite a few. The final steps of our deployment pipeline, implies a deployment of ...

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Observer Pattern with Spring Events

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INTRODUCTION The essence of the Observer Pattern is to ‘Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.’ GoF. Observer pattern is a subset of publish/subscribe pattern which allows a number of observer objects to see an event. This pattern can be used in different situations, but in ...

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Build Flow Jenkins Plugin

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Most of us we are using Jenkins/Hudson to implement Continuous Integration/Delivery, and we manage job orchestration combining some Jenkins plugins like build pipeline, parameterized-build, join or downstream-ext. We require configuring all of them which implies polluting the job configuration through multiple jobs, which takes the system configuration very complex to maintain. Build Flow enables us to define an upper level ...

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Answering with Mockito

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When you are writing unit tests, you must keep in mind to not have dependencies to external components. To avoid this we use mock frameworks which for me the easiest one to use is Mockito. In this post we are going to see an ‘advanced’ technique used in Mockito to return same argument instance on a mocked method using Answer ...

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Bye, Bye, 5 * 60 * 1000 //Five Minutes, Bye, Bye

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In this post I am going to talk about one class that was first introduced in version 1.5, that I have used too much but talking with some people they said that they didn’t know it exists. This class is TimeUnit. TimeUnit class represents time durations at a given unit of granularity and also provides utility methods to convert to ...

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NoSQLUnit 0.3.0 Released

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Introduction Unit testing is a method by which the smallest testable part of an application is validated. Unit tests must follow the FIRST Rules; these are Fast, Isolated, Repeatable, Self-Validated and Timely. It is strange to think about a JEE application without persistence layer (typical Relational databases or new NoSQL databases) so should be interesting to write unit tests of ...

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Testing Abstract Classes and Template Method Pattern

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From wikipedia “A template method defines the program skeleton of an algorithm. One or more of the algorithm steps can be overridden by subclasses to allow differing behaviors while ensuring that the overarching algorithm is still followed”. Typically this pattern is composed by two or more classes, one that is an abstract class providing template methods (non-abstract) that have calls ...

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