Develop Generic VCL Call

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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.

GVESBUserLibraries.png

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

SetGVESBUserLibraries.png

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