void Activator::ServiceChanged(const ServiceEvent event) {
// MutexLocker lock(&m_mutex);
if (event.GetType() == ServiceEvent::REGISTERED) {
if (!this->ref) {
// Get a reference to the service object.
this->ref = event.GetServiceReference();
this->axService = this->context->GetService(this->ref);
}
}
// If an Autexousious service was unregistered, see if it
// was the one we were using. If so, unget the service
// and try to query to get another one.
else if (event.GetType() == ServiceEvent::UNREGISTERING) {
if (event.GetServiceReference() == this->ref) {
// Unget service object and null references.
this->context->UngetService(this->ref);
this->ref = 0;
this->axService = NULL;
// Query to see if we can get another service.
std::vector<ServiceReference<sl::ax::engine::AutexousiousService> > refs;
try {
refs = this->context->GetServiceReferences<sl::ax::engine::AutexousiousService>();
} catch (const std::invalid_argument& e) {
std::cout << e.what() << std::endl;
}
if (!refs.empty()) {
// Get a reference to the first service object.
this->ref = refs.front();
this->axService = this->context->GetService(this->ref);
}
}
}
}
void ServiceListeners::GetMatchingServiceListeners(const ServiceEvent& evt, ServiceListenerEntries& set,
bool lockProps)
{
US_UNUSED(Lock(this));
// Filter the original set of listeners
ServiceListenerEntries receivers = serviceSet;
coreCtx->serviceHooks.FilterServiceEventReceivers(evt, receivers);
// Check complicated or empty listener filters
for (std::list<ServiceListenerEntry>::const_iterator sse = complicatedListeners.begin();
sse != complicatedListeners.end(); ++sse)
{
if (receivers.count(*sse) == 0) continue;
const LDAPExpr& ldapExpr = sse->GetLDAPExpr();
if (ldapExpr.IsNull() ||
ldapExpr.Evaluate(evt.GetServiceReference().d->GetProperties(), false))
{
set.insert(*sse);
}
}
//US_DEBUG << "Added " << set.size() << " out of " << n
// << " listeners with complicated filters";
// Check the cache
const std::vector<std::string> c(any_cast<std::vector<std::string> >
(evt.GetServiceReference().d->GetProperty(ServiceConstants::OBJECTCLASS(), lockProps)));
for (std::vector<std::string>::const_iterator objClass = c.begin();
objClass != c.end(); ++objClass)
{
AddToSet(set, receivers, OBJECTCLASS_IX, *objClass);
}
long service_id = any_cast<long>(evt.GetServiceReference().d->GetProperty(ServiceConstants::SERVICE_ID(), lockProps));
std::stringstream ss;
ss << service_id;
AddToSet(set, receivers, SERVICE_ID_IX, ss.str());
}
void ServiceListeners::GetMatchingServiceListeners(const ServiceEvent& evt, ServiceListenerEntries& set)
{
// Filter the original set of listeners
ServiceListenerEntries receivers = (this->Lock(), serviceSet);
// This must not be called with any locks held
coreCtx->serviceHooks.FilterServiceEventReceivers(evt, receivers);
// Get a copy of the service reference and keep it until we are
// done with its properties.
auto ref = evt.GetServiceReference();
auto props = ref.d.load()->GetProperties();
{
auto l = this->Lock(); US_UNUSED(l);
// Check complicated or empty listener filters
for (auto& sse : complicatedListeners)
{
if (receivers.count(sse) == 0) continue;
const LDAPExpr& ldapExpr = sse.GetLDAPExpr();
if (ldapExpr.IsNull() ||
ldapExpr.Evaluate(props, false))
{
set.insert(sse);
}
}
// Check the cache
const auto c = any_cast<std::vector<std::string>>(props->Value_unlocked(Constants::OBJECTCLASS));
for (auto& objClass : c)
{
AddToSet_unlocked(set, receivers, OBJECTCLASS_IX, objClass);
}
long service_id = any_cast<long>(props->Value_unlocked(Constants::SERVICE_ID));
AddToSet_unlocked(set, receivers, SERVICE_ID_IX, cppmicroservices::util::ToString((service_id)));
}
}