Customizing Statistics Publishing

The following needs to be done in order to implement a custom statistics observer.

• To disable operation of publishing statistics via the EI Analytics server, add the following configuration in the <EI_HOME>/conf/carbon.xml file to true as shown below.

  <MediationFlowStatisticConfig> <AnalyticPublishingDisable>true</AnalyticPublishingDisable> </MediationFlowStatisticConfig>

  This is useful when you want to collect statistics using a product other than EI Analytics. In such scenarios, preventing the EI Analytics server from publishing statistics allows you to avoid incurring an unnecessary system overhead.
   

• Create the JAR file with the that contains the required statistics observer implementation, and copy it to the <EI_HOME>/lib directory. This implementation should have the following.

  • The org.wso2.carbon.das.messageflow.data.publisher.observer.MessageFlowObserver interface.

  • If the observer is tenant aware, it should also implement org.wso2.carbon.das.messageflow.data.publisher.observer.TenantInformation.
     

• Add all the observers as a comma separated list in the <EI_HOME>/conf/carbon.xml file as shown in the example below.

  <MediationFlowStatisticConfig> <Observers> org.wso2.custom.Observer1,org.wso2.custom.Observer2 </Observers> </MediationFlowStatisticConfig>