Intro
Overview
What is the microService Architecture?
mSA Backplane Overview
mSA Example: Servlet Engine
mSA Example: Servlet Engine
mSA Example: Management Agent
mSA Example: Management Agent
mSA Example: Data Product
mSA Example: Data Product
mSA Overview
Overview
microService Architecture Components
mSA Backplane Components
mSA Feature Sets
mSA Infrastructure
mSA Design Principles
Overview
The Good: OSGi package loading
Making Code Modular
The Good: Service Registry
Issues with Declarative Services
Our Solution
The Bad: Security
The Bad: Configuration
Configuration in mSA
The Ugly: Java Platform/OSGi Integration
The Ugly: Bundle Installation Model
What OSGi is Not Missing
The microService Architecture (mSA) Backplane is an OSGi-based infrastructure that will be the basis for many future software products from BEA. This project has been in development for about a year, and currently consists of about 100 different OSGi bundles that encompass functions such as logging, thread management, HTTP servlets, web services, and transaction management.
In the course of our work, we have learned a great deal about the process of breaking down existing, production-quality software into individual modules, and we have learned how to effectively use some of the best features of OSGi, such as the class loading infrastructure and the service registry. We also continue to be challenged by other aspects of OSGi, such as the security infrastructure and the mechanisms for starting and launching bundles.
In this talk, we will describe the mSA Backplane, and we will concentrate on the lessons we have learned about OSGi in the process of building it. We will assume that attendees are familiar with fundamental OSGi concepts.
Gregory Brail works on the architecture of the mSA Backplane, the OSGi-based technology that will underly many BEA software products. Previously, he co-led the architecture of the JMS component in WebLogic Server 9.0. In the past, he has held various development and field positions at TransactPlus, IBM, Transarc, and Citibank.