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Arnold Galovics

Being a good software engineer is 3% talent, 97% not being distracted by the internet.

Encrypting JPA entity attributes using listeners in Spring

 October 8, 2018November 22, 2018

In 2018, it’s mandatory to think about security for every application which stores personal data. When it comes to this topic, you can’t be 100% sure that the application has Continue reading

 17 Comments Tagshibernate, jpa, spring, spring-boot, spring-core

Extending Swagger Codegen with new mustache template files using a new language

 October 2, 2018

We’ve already seen a lot of things in the previous parts of the series. Although, it’s very useful if you know how to extend the code generation process for the Continue reading

 1 Comment Tagscodegen, eureka, feign, gradle, groovy, mustache, netflix, spring, spring-boot, spring-cloud, spring-cloud-netflix, spring-mvc, swagger, swagger-codegen

Pessimistic locking in JPA/Hibernate

 September 19, 2018

There are two ways to deal with concurrency conflicts, optimistic locking and pessimistic locking. Implicit optimistic locking has been already covered, if you didn’t have the chance to read my Continue reading

 Leave a comment Tagsconcurrency, hibernate, jpa, locking, pessimistic, pessimistic-locking, spring, spring-boot, spring-core

Setting up Netdata monitoring with Slack alarms

 August 28, 2018September 29, 2018

Monitoring is a crucial part of running any kind of application. Making sure that you have up-to-date information about the system where your application is set up is very important. Continue reading

 1 Comment Tagsalarms, linux, monitoring, netdata, slack

Optimistic locking in JPA/Hibernate

 August 22, 2018

The applications written today most of the time involves handling multiple users at the same time. With this requirement in place it’s mandatory to understand the possibilities for handling concurrency Continue reading

 6 Comments Tagsconcurrency, hibernate, java, jpa, locking, optimistic, optimistic-locking, spring, spring-boot

Accessing custom attributes in Swagger Codegen

 July 9, 2018

Introduction Customizing your Swagger code generation is easier than you would expect. Adding new custom attributes into your specification file is easy as the OpenAPI spec knows the term extensions  Continue reading

 3 Comments Tagseureka, feign, gradle, mustache, spring, spring-boot, spring-cloud, spring-cloud-netflix, spring-mvc, swagger, swagger-codegen

Generating Feign clients with Swagger Codegen and Gradle

 June 11, 2018

In the last article, I showed you how to use a custom template for code generation. If you haven’t read the previous parts of the series, make sure you do Continue reading

 Leave a comment Tagscodegen, eureka, feign, gradle, groovy, mustache, spring, spring-boot, spring-cloud, spring-cloud-netflix, spring-mvc, swagger, swagger-codegen

Using a custom template for Swagger Codegen with Gradle

 May 28, 2018

This article is the second part of a Swagger Codegen series. If you haven’t read the first one, make sure you do it before continuing. In this one I’ll show Continue reading

 4 Comments Tagscodegen, gradle, groovy, spring, spring-boot, spring-mvc, swagger, swagger-codegen

Generating stubs with Swagger Codegen and Gradle

 May 22, 2018May 27, 2018

Introduction to Swagger Swagger is a powerful tool to enable sharing REST contracts with each other. It’s useful in any architecture today and even better if you are thinking about Continue reading

 2 Comments Tagscodegen, gradle, groovy, spring, spring-boot, spring-mvc, swagger, swagger-codegen

Copying current request information into Feign interceptor with Hystrix enabled

 May 7, 2018

Not so long ago I came across a problem which was related to localization in a microservices architecture which was using Feign for internal service communication. The idea was that Continue reading

 6 Comments Tagsfeign, hystrix, spring-cloud, spring-cloud-netflix

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