Modules

The WSO2 SOA platform has the capabilities of Axis2 to add modules to extend its capabilities. A module is an archive file that bundles a set of classes, related libraries and third party library dependencies. The global modules will affect all the services deployed within the server.

The folder structure of the module archive file will look as follows:

Test.mar
  - META-INF
     - module.xml
TestModule.class
TestHandler.class

After modules are added to the ESB they can be engaged for a particular service or service group. For more information see Module Engagement for Service and Managing Service Groups.

WSO2 ESB provides numerous build-in modules:

Name	Version	Description
wso2xfer	4.0	This module is an implementation of `WS-Transfer`
rahas	1.61-wso2v8	This module is used to STS enable a service where it add the `RequestSecurityToken` operation to a service that the module is engaged to
wso2mex	4.0	This module provides `MetadataExchange` services for any services that the module is engaged
wso2caching	4.2	This is a web services caching module for WSO2 WSAS and Apache Axis2. This implements both the server side as well as client side caching
wso2throttle	4.2	Module for controlling client access to web service engine. Access throttling can be configured at a global level, service level or operation level.
sandesha2	4.0	This module implements `WS-ReliableMessaging` for Axis2. This implements both the WSRM submitted spec and up to the version CD4 of the new WSRM 1.1 spec.
relay	4.5	Unwraps the binray messages coming from the Message Relay for Admin Services
addressing	4.0	This is the `WS-Addressing` implementation on Axis2, supporting the WS-Addressing 1.0 Recommendation, as well as the Submission version (2004/08).
rampart	1.61-wso2v8	This module provides the `WS-Security` and `WS-SecureConversation` functionalities for Axis2, based on Apache WSS4J, Apache XML-Security and Apache Rahas implementations.

To learn more information about Axis2 Modules, see Apache Axis2 Architecture Guide.

The WSO2 Carbon provides a user friendly interface to engage, disengage and configure these modules.