Microservices architecture (MSA) is a trending topic and many organizations today are leaning towards it given its potential advantages. There are a number of frameworks available for microservices development. In this session, Azeez will introduce the Java framework for microservices development, MSF4J (Microservices Framework for Java). MSF4J provides the necessary framework and tooling for building an MSA solution. He will introduce some core features of MSF4J including the programming model, tooling & analytics.

1. Crea%ng Microservices
with
WSO2 Microservices Framework for Java
(MSF4J)
A?ham Azeez,
Director, Architecture
WSO2 Inc.

2. What is MSF4J?
A lightweight, high performance framework
for building microservices in Java

4. Recap: Inner & Outer Architectures

5. Vision for MSF4J
• Lightweight & fast run%me
• Use Java annota%ons as a way of defining microservices APIs as well as
metrics
• Support well known & widely used methods such as JAXRS annota%ons
• Provide simple ways to develop & deploy microservices
• Built-in Metrics & Analy%cs APIs with out of the box integra%on with
WSO2 Data Analy%cs Server (DAS)
• To be used in the WSO2 plaVorm as a way of replacing all admin services
as well as defining other microservices for inter-component interac%ons

6. MSF4J- Performance Comparison

7. MSF4J- Memory ConsumpEon Comparison

8. MSF4J ImplementaEon
• Transport is based on NeYy 4.0
• Supports streaming
• High performance
• Low memory footprint
• 5MB pack size
• Starts within 300ms

9. Download
• MSS 1.0.0 release is available at
hYps://github.com/wso2/msf4j/releases/tag/v1.0.0
• Refer to the gebng started guide in GitHub
• A good place to start is the samples
– hYps://github.com/wso2/msf4j/tree/v1.0.0/samples

10. Core Features in MSS
• Quick & simple development model using simple annota%ons
• Lightweight & high performance
• Custom interceptors
• JWT based security
• Metrics gathering & publishing
• Tracing of requests using a unique message ID
• Streaming input & streaming output support
• WSO2 DevStudio based tooling for genera%ng microservices projects
star%ng from a Swagger API defini%on
• Comprehensive samples demonstra%ng how to develop microservices
applica%on

11. MSF4J– Flow & Thread Model

13. Runner

14. Request Streaming

15. Security
• Security is done via a central server issuing JWT
tokens
• The JWTSecurityInterceptor verifies the
signature, expiry & claims in the token

16. AnalyEcs & Monitoring
• Supports annota%ons
– Timed – measures execu%on %me
– Metered – measures rate of events
– Counted – Counts the total invoca%ons
– HTTPMonitoring – monitors HTTP requests

17. AnalyEcs & Monitoring

18. Metrics Output to Console

19. JMX Metrics

20. AnalyEcs & Monitoring

21. Tooling (Swagger -> Code)
Swagger API
Defini%on
MSS Code
1
2
3

22. MSF4J in AcEon!
hYps://github.com/a?ham/wso2conasia2016

23. MSF4J Pet store sample

24. MSF4J Pet store sample

25. Thank You