How to fetch component and stream name from a changeset associated to a workitem

If this is a SCM delivery participant, you can probably get at the data. Start here: https://rsjazz.wordpress.com/2012/11/01/restrict-delivery-of-changesets-to-workitem-types-advisordelivery-of-changesets-associated-to-wrong-work-item-types-advisor/
It is an advisor, but except that it implements the advisor, all the other code is relevant. That at least gives you the right entry point into the SCM API. I don't have more example code. You can find some other code using the SCM API on  https://rsjazz.wordpress.com/ and there is also some code on http://thescmlounge.blogspot.de/ but probably not exactly what you are looking for.

Object data1 = operation.getOperationData();
DeliverOperationData deliverydata = (DeliverOperationData) data1;

I have used the above given code snippet, but facing the below given exception. Please suggest.

java.lang.ClassCastException: com.ibm.team.workitem.common.internal.SaveParameter incompatible with com.ibm.team.scm.common.process.DeliverOperationData

currently, we have the below given existing method which accepts IParticipantInfoCollector as one of the arguments.

public void run(AdvisableOperation operation,
            IProcessConfigurationElement participantConfig,
            IParticipantInfoCollector collector, IProgressMonitor monitor)
            throws TeamRepositoryException {
       
        System.out.println("Welcome to DXA ALM Server side Plugin");
        Object data = operation.getOperationData();
        ISaveParameter saveParameter = null;
}

but for the DeliverOperationData, one of the argument is mismatching - which is IAdvisorInfoCollector how can we make both the methods compatible? please suggest.

public void run(AdvisableOperation operation,
            IProcessConfigurationElement advisorConfiguration,
            IAdvisorInfoCollector collector, IProgressMonitor monitor)
            throws TeamRepositoryException {
        Object operationData = operation.getOperationData();
       
        DeliverOperationData data = (DeliverOperationData) operationData;
    }

How to fetch DeliverOperationData reference inside AbstractService class. Can you please tell me if is there any way to fetch this DeliverOperationData in my user defined class.

 The ClassCastException thrown to indicate that your code has attempted to cast an object to a subclass of which it is not an instance.  Casting only works when the casted object follows an is a relationship to the type you are trying to cast to.