September 2016
Intermediate to advanced
127 pages
2h 43m
English
Content preview from Microservices for Java Developers
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Chapter 4. WildFly Swarm for Microservices
The last Java microservice framework we’ll look at is a relative newcomer to the scene yet leverages tried-and-trusted Java EE functionality found in the JBoss WildFly application server. WildFly Swarm is a complete teardown of the WildFly application server into bite-sized, reusable components called fractions that can be assembled and formed into a microservice application that leverages Java EE APIs. Assembling these fractions is as simple as including a dependency in your Java Maven (or Gradle) build file, and WildFly Swarm takes care of the rest.
Application servers and Java EE have been the workhorse of enterprise Java applications for more than 15 years. WildFly (formerly JBoss Application Server) emerged as an enterprise-capable, open source application server. Many enterprises heavily invested in the Java EE technology (whether open source or proprietary vendors) from how they hire software talent as well as overall training, tooling, and management. Java EE has always been very capable at helping developers build tiered applications by offering functionality like servlets/JSPs, transactions, component models, messaging, and persistence. Deployments of Java EE applications were packaged as EARs, which typically contained many WARs, JARs, and associated configuration. Once you had your Java archive file (EAR/WAR), you would need to find a server, verify it was configured the way you expect, and then install your archive. You could ...
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