CIS-6188 How and why we turned our old Java projects into first-class serverless components | Devoxx

Devoxx Poland 2019
from Monday 24 June to Wednesday 26 June 2019.

   How and why we turned our old Java projects into first-class serverless components

Conference

Cloud, Containers & Infrastructure
Cloud, Containers & Infrastructure
Intermediate level

These days rule and workflow engines are often overlooked, possibly because people think that they are only useful inside heavyweight enterprise software products. However, this is not necessarily true. Simply put, a rule engine is just a piece of software that allows you to separate domain and business-specific constraint from the main application flow. Similarly a workflow engine allows you to put higher level abstraction (not always in graphical representation) over your logic, yet keeping you focused on actual business goal. We are the project leads of Drools and jBPM, respectively the rule and workflow engine of Red Hat, and our target was to modernize our projects and make them ready to be used in serverless environments. In this talk we will explore and make sense of technologies like GraalVM and Quarkus. In particular we will show, with very practical use cases like ours, what is necessary to change in a code base making extensive use of reflection, dynamic class loading and other Java sorceries in order to make it compatible with those technologies and demonstrate how this is allowing us to make Drools and jBPM part of the cloud and serverless revolution.

GraalVM   Quarkus   Red Hat OpenShift   serverless   function as a service  
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Mario Fusco
Mario Fusco
From Red Hat

Mario is a principal software engineer at Red Hat working as Drools project lead. He has a huge experience as Java developer having been involved in (and often leading) many enterprise level projects in several industries ranging from media companies to the financial sector. Among his interests there are also functional programming and Domain Specific Languages. By leveraging these 2 passions he created the open source library lambdaj with the purposes of providing an internal Java DSL for manipulating collections and allowing a bit of functional programming in Java. He is also a Java Champion, the JUG Milano coordinator a frequent speaker and the co-author of "Modern Java in Action" published by Manning.


Maciej Swiderski
Maciej Swiderski
From RedHat

Maciej is principal software engineer at JBoss working as project lead of jBPM. Since 2007 he is in business automation domain both from development point of view and helping to adopt it in different sectors. He's passionate about open source and tries to promote it wherever possible. In his spare time he enjoys calm and relax life on country side and travels.


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