Subscription Activate

To implement the Subscription activate API using the SDK, implement the abstract method processSubscriptionActivate from the PurchaseServlet:

/**
* Process a subscription activation based on the request and returns the response to
* whether or not the request succeeded.
 *
 * @param request
 * the request object with information about the subscription
 *
 * @return a SubscriptionActivateResponse object
 */
 public abstract SubscriptionActivateResponse
processSubscriptionActivate(SubscriptionActivateRequest request);