Hi, +1. Can you please give me a usage for returned 'properties' in the interface/implementation ?
thanks. On Thu, Aug 21, 2014 at 6:09 AM, Isuru Haththotuwa <isu...@apache.org> wrote: > +1 for this change. This will enable us to cater to such customizations in > future as well, without using long and ugly if-else statements. > > > On Thu, Aug 21, 2014 at 9:28 AM, Nirmal Fernando <nirmal070...@gmail.com> > wrote: > >> Hi All, >> >> Currently, there's no clean way to intercept a subscription request and >> do some pre-processing. As of now, we do some pre-processing of a >> subscription request in order to identify the need of a load balancer and >> act accordingly. I currently have another use-case to intercept a >> subscription request and act upon a parameter. >> >> Hence, to make the code clean over there, I propose we introduce a >> Subscription Filter chain where you could intercept a subscription request >> and do some pre-processing before creating the actual subscription. >> >> Following is the interface design, I've come up with. >> >> /** >> >> * Intercepts the flow of Cartridge Subscription. >> >> * Implementations of this class would get executed before making the >> real subscription. >> >> */ >> >> public interface SubscriptionFilter { >> >> >> /** >> >> * Do some pre-processing on a subscription request. >> >> * @param cartridgeInfo {@link CartridgeInfo} >> >> * @param subscriptionData {@link SubscriptionData} >> >> * @return {@link Properties}, if there are any. >> >> * @throws ADCException on a failure while processing. >> >> */ >> >> public Properties execute(CartridgeInfo cartridgeInfo, SubscriptionData >> subscriptionData) throws ADCException ; >> >> } >> >> Let me know your thoughts. >> >> -- >> Best Regards, >> Nirmal >> >> Nirmal Fernando. >> PPMC Member & Committer of Apache Stratos, >> Senior Software Engineer, WSO2 Inc. >> >> Blog: http://nirmalfdo.blogspot.com/ >> >> -- >> <http://nirmalfdo.blogspot.com/> >> Thanks and Regards, >> >> Isuru H. >> <http://nirmalfdo.blogspot.com/> >> +94 716 358 048 <http://nirmalfdo.blogspot.com/>* <http://wso2.com/>* >> >> >> * <http://wso2.com/>* >> >> >> -- Pradeep Fernando. http://pradeepfernando.blogspot.com/