Using Request Service Domain Preference API

Using Request Service Domain Preference API

Please follow below steps to request service domain preference

1. Get phone factory and serving system manager instances

auto &phoneFactory = telux::tel::PhoneFactory::getInstance();
auto servingSystemMgr
   = phoneFactory.getServingSystemManager(DEFAULT_SLOT_ID);

### 2. Wait for the serving subsystem initialization ###

bool subSystemStatus = servingSystemMgr->isSubsystemReady();

### 2.1 If serving subsystem is not ready, wait for it to be ready ###

if(!subSystemsStatus) {
   std::cout << "Serving subsystem is not ready" << std::endl;
   std::cout << "wait unconditionally for it to be ready " << std::endl;
   std::future<bool> f = servingSystemMgr->onSubsystemReady();
   subSystemsStatus = f.get();
}

### 3. Exit the application, if SDK is unable to initialize serving subsystem ###

if(subSystemsStatus) {
   std::cout << " *** Serving subsystem ready *** " << std::endl;
} else {
   std::cout << " *** ERROR - Unable to initialize serving subsystem"
             << std::endl;
   return 1;
}

6. Implement response callback to receive response for request service domain preference

class ServiceDomainResponseCallback {
public:
   void serviceDomainResponse(telux::tel::ServiceDomainPreference preference,
                              telux::common::ErrorCode errorCode) {
      if(errorCode == telux::common::ErrorCode::SUCCESS) {
         std::cout << "Service domain preference: "
                   << static_cast<int>(preference)
                   << std::endl;
      } else {
         std::cout << "\n setServiceDomainPreference failed, ErrorCode: "
                   << static_cast<int>(errorCode)
                   << std::endl;
      }
   }
};

7. Send request service domain preference request along with required function object

if(servingSystemMgr) {
   servingSystemMgr->requestServiceDomainPreference(
      ServiceDomainResponseCallback::serviceDomainResponse);
   std::cout << static_cast<int>(status) <<std::endl;
}

8. Receive callback for request service domain preference request in serviceDomainResponse function