The document discusses the WSO2 Carbon architecture, which provides a lean, modular, and enterprise-class middleware platform for building various WSO2 products. Key points: - Carbon is built on OSGi and uses its modularization features. It provides a minimal runtime and common components like security, caching, and logging that products can use. - Products like the application server and API manager are built as a collection of modules running on the Carbon runtime. This allows agile development and no integration challenges between products. - The architecture provides benefits like consistency across products, reduced learning curves, and unprecedented extensibility through additional modules. - Future releases will focus on areas like the next version Carbon 5

1. Using the Carbon Architecture
to build a
Fit-for-Purpose Platform
Sameera Jayasoma
Architect @ WSO2

2. WSO2 Carbon
● Tag cloud

3. WSO2 Carbon Platform
● WSO2 Carbon is a
○ lean,
○ modular,
○ enterprise-class middleware platform.
● All WSO2 middleware products are build on top of
Carbon
■
Application Server, Enterprise Service Bus, Identity Server, Business
Process Server, API Manager..
● Offers a wide-range of reusable core components to
middleware products.
■
Security, Clustering, Caching, Logging, Monitoring, User management..

4. What is Carbon?

5. Carbon Kernel Runtime
● Modular server development framework
○
○
○
Defines how to develop modules/components in Carbon
Defines how these modules collaborate at runtime.
Provides a provisioning solution for the Carbon platform.
● Provides a minimal runtime for any WSO2 middleware
product.
○ A WSO2 middleware product can be considered as a collection of
related modules/components running on this minimal runtime.

6. Under the covers: OSGi, P2
● OSGi as the fundamental modularization technology in
WSO2 Carbon.
● OSGi provides a better module system for Java:
■
■
■
Better control than packages
Versioning
Dynamic loading
● Carbon Relies on Eclipse’ open source
implementation of OSGi - Equinox.
● Provisioning solution based on Equinox P2
○
P2 is generic provisioning solution for OSGi based systems.

7. Feature Provisioning in Carbon

8. Benefits of WSO2 Carbon
● WSO2 technology as well our customers have
benefitted from this componentized middleware
platform.
● Enables agile development
○
○
Small teams focusing on their own features
Time to market factor for product teams.
● Best of breed
○
Each product brings enhancements to the core.
● No Internal integration challenges.
○
○
Eliminated these challenges by sharing cross-cutting features
across all the middleware products
e.g. Security, User mgt, Clustering, Multi-tenancy, Logging

9. Consistency in usability
● User experience is same
across all the products.
● Reduced learning curve.
● Any Carbon based product
will have this directory
hierarchy.
● If you are familiar with
installing, configuring and
operating Application server,
same applies all the other
products.

10. Composite Application model (CApp)
● Improved definition of “enterprise project”.
● WSO2 developer studio allows to package config and
code of an enterprise project into a single archive. (a
“car” file)
● A CAR file can be deployed to different runtimes.
● Each runtime will only deploy the artefacts which match
with the role that the runtime is playing.
■
e.g. ESB runtime will not deploy a data service in the CAR file
unless otherwise the default configuration is altered.

11. Deployment Synchronization

12. Deployment Choices
Stratos
Private
PaaS
StratosLive
Public
PaaS
C-App
Carbon
On-Premise

13. Server Profiles
● Enables a product to run in multiple modes/profiles
● A profile of a product describes the runtime behaviour.
● Each ale contains only the required set of components
○
E.g. A single API Manager distribution can play following
roles.
API Publisher
API Subscriber
API Gateway
Auth Server
● One download, multiple servers.
e.g. sh wso2carbon.sh -Dprofile=profile_name

14. Unprecedented Extensibility
● Extensibility is provided from the heart of the Carbon
platform.
● Componentized architecture allows you to enrich the
rich set of features of Carbon platform.
● Certain Extensions are treated as first class citizens of
the platform.

15. Core Platform Components
● User Manager
○
○
User provisioning and access model
APIs to integrate third party user stores
● Registry
○
Provides repository API to store any type of data of metadata.
● Distributed Caching and Clustering
○
Based use Hazelcast
● Deployment Engine
○
○
Ghost deployment
Deployment Synchronization and APIs to plugin any repository.
● UI framework
○
Based on Apache Tiles, it provides clean API to plugin your custom UI
components.
● Data sources

16. WSO2 Platform Adaptability

17. What Carbon Platform means for
your Business
● Simpler, speedier projects.
● Reduced risk of failure
● Required only few specialized consultants
● Platform evolution.

19. WSO2 Carbon 5 (C5)
● Next generation of the Carbon platform.
● Still at the milestone 1 level.
● Planning to release in 6 months.

20. Q&A ???

21. Thank You!!!