What is correct path for creation of micro services in Java? Spring Boot or OSGI

spring osgi spring-boot spring-dm
Valters Rostoks picture Valters Rostoks · Mar 2, 2015 · Viewed 8k times · Source

I found a book "Spring DM in action". When I started to check the latest release of Spring for OSGI, I found out that Spring has discontinued this project.

As I have some experience of developing in Spring, I would like to understand should I continue to read about Spring and OSGI or switch to Spring Boot as way of creating modular applications?

Answer

Martin Baumgartner picture Martin Baumgartner · Mar 2, 2015

I've wanted to write a comment, but it didn't give me enough characters.

If you need the modularization and dynamic of OSGi, spring DM (now Gemini Blueprint) is a nice technology. We used it to create a high performance message oriented middleware with a plugin-infrastructure. The plugin-infrastructure was needed, cause the customer wanted to be able to add/replace/update modules and change routes via a web-interface at runtime. Each message also was transformed via 0-N groovy-scripts (stored in db, changeable on runtime). The processing engine was based on spring batch and spring integration.

So if you have a real use cases for OSGi, it can be a nice technology.

But most of the time people tried to use it, to separate the layers of a monolithic webapplication, which is not useful and gives you more work than profit. Once i saw an approach where a developer used OSGi to separate each group of his domain-model into a small module. This harms your application-design more than you can profit from, cause the profit is null.

Also, the book might be a nice idea to give you a different approach on "how to develop" software.

Related questions

Using tx:annotation-driven prevents Autowiring a bean

I'm developing a module on an OSGi application, using Spring MVC and Virgo Webserver. On my module I have a Controller, that access a Manager, which has a list of handlers that are responsible for handling report generation. Everything was …

Read More
Where can I find Spring 4 OSGi bundles

Where can I find OSGi bundles for Spring 4? I checked http://ebr.springsource.com/ but can only find Spring 3.2.x and the artifacts in Maven Central are not bundles. Clarification I'm not looking for Spring DM or similar. I'm looking …

Read More
OSGi vs Spring vs Struts vs EJB vs. Hibernate -- a totally newbie's question

I am not familiar with these "framework" "components" at all, but can someone give me a 101 introduction about what the relationship they are to each other? Basically, I want to know roughly about: what and what are counterparts to each …

Read More