Develop Generic VCL Call

Description

A VCL Generic Call is a facility to enable the use of custom Java libraries in GreenVulcano^® ESB. The plug-in must implement the CallOperation interface and can be configured in GV Console^® or VulCon^® through a simple configuration interface.

Generic VCL Call life cycle

A Generic VCL Call life cycle is the same as every VCL plug-in:

• the init method is called at instance creation time
• the perform method is called at every service invocation
• the cleanUp method is called after every perform invocation
• the destroy method is called at instance destruction time

Configure the Eclipse workspace

To develop the plug-in is needed to reference some GreenVulcano^® ESB libraries: in GV_HOME/application/deploy/gvesb-javaee5-*.ear/lib

• gvbase-*.jar
• gvcore-*.jar
• gvvcl-*.jar

in JBOSS_HOME/commons/lib

• log4j.jar

The simplest mode is to define a User Libaries set, named "GVESB", as show in the image.

The create an Eclipse Java project (ex.GenericVCLCall) and add the GVESB User Libraries set to the project's classpath.