Creating your own Registry

Create a custom registry to manage the custom configuration properties file in websphere commerce.

Create a custom class called ApplicationRegistry. This class will be responsible for loading and refreshing your custom configuration property file. This class will implement com.ibm.commerce.registry.Registry interface.

public class ApplicationRegistry implements Registry {       

       /**

        * Name of the applicattion configuration file

        */                                                                         

       public final static String PROPERTIES_FILE = "xxx_configuration.properties";

/**

        * Name of the Registry used for custom application configuration

        */

       public final static String REGISTRY_NAME = "ApplicationRegistry";

Implement Initialize () method of Registry interface and register this custom registry with wcs app as shown below.

/**

        * @see com.ibm.commerce.registry.Registry#initialize()

        */

       public void initialize() throws Exception {

              final String METHOD = "initialize";

Properties prop = new Properties();

              try {

                  prop.load(getInputStream(filename));

              } catch (Exception e) {

                  throw new ECSystemException(ECMessage._ERR_GENERIC,CLASSNAME,e.getMessage());

              }//end try          

WcsApp.registerObject(REGISTRY_NAME, this);

       }

In the initialize method, read the file and populate it to a Properties Object.  Also, register this registry with the websphere commerce application using WcsApp.registerObject(“Registry_Name”, this)

Implement the refresh method of the Registry interface. This method should take care of the refresh registry command issued from Websphere Administration Console.

public void refresh() throws Exception {

              final String METHOD = "refresh";

              ECTrace.entry(ECTraceIdentifiers.COMPONENT_EXTERN, CLASSNAME, METHOD);

                          

              readConfiguration();

              // intializeProfileProperties();

              // initializeRegionCodes();

             

              observable.refresh(this);

              ECTrace.exit(ECTraceIdentifiers.COMPONENT_EXTERN, CLASSNAME, METHOD);

       }

private class RegObservable extends Observable{

           public void refresh(Object object){

               setChanged(); //properties changed

               notifyObservers(object); //notify observers

           }

       };

       private RegObservable observable = new RegObservable ();

The refresh method uses the observer pattern. In the above code, there is a class RegObservable which extends Observable and implements refresh method.
Once your own ApplicationRegistry is created, you need to register the registry in wc-server.xml.

<Registries>

......

......

.....

<registry

      name="ApplicationRegistry" regClassName="com.tgg.commerce.registry.ApplicationRegistry"/>

</Registries>

Now create a custom configuration property file in WC_ToolkitPath/properties  or in WC_profile.ear/properties file (in case of wc_server)