void BundleHooks::FilterBundles(const BundleContext& context,
std::vector<Bundle>& bundles) const
{
std::vector<ServiceRegistrationBase> srl;
coreCtx->services.Get(us_service_interface_iid<BundleFindHook>(), srl);
ShrinkableVector<Bundle> filtered(bundles);
auto selfBundle = GetBundleContext().GetBundle();
std::sort(srl.begin(), srl.end());
for (auto srBaseIter = srl.rbegin(), srBaseEnd = srl.rend();
srBaseIter != srBaseEnd;
++srBaseIter) {
ServiceReference<BundleFindHook> sr = srBaseIter->GetReference();
std::shared_ptr<BundleFindHook> fh =
std::static_pointer_cast<BundleFindHook>(
sr.d.load()->GetService(GetPrivate(selfBundle).get()));
if (fh) {
try {
fh->Find(context, filtered);
} catch (...) {
std::string message("Failed to call Bundle FindHook # " +
sr.GetProperty(Constants::SERVICE_ID).ToString());
coreCtx->listeners.SendFrameworkEvent(
FrameworkEvent(FrameworkEvent::Type::FRAMEWORK_WARNING,
selfBundle,
message,
std::current_exception()));
}
}
}
}
void ServiceListeners::ServiceChanged(ServiceListenerEntries& receivers,
const ServiceEvent& evt,
ServiceListenerEntries& matchBefore)
{
int n = 0;
if (!matchBefore.empty())
{
for (auto& l : receivers)
{
matchBefore.erase(l);
}
}
for (auto& l : receivers)
{
if (!l.IsRemoved())
{
try
{
++n;
l.CallDelegate(evt);
}
catch (...)
{
std::string message("Service listener in " + l.GetBundleContext().GetBundle().GetSymbolicName() + " threw an exception!");
SendFrameworkEvent(FrameworkEvent(
FrameworkEvent::Type::FRAMEWORK_ERROR,
l.GetBundleContext().GetBundle(),
message,
std::current_exception()));
}
}
}
}
void ServiceListeners::BundleChanged(const BundleEvent& evt)
{
BundleListenerMap filteredBundleListeners;
coreCtx->bundleHooks.FilterBundleEventReceivers(evt, filteredBundleListeners);
for(auto& bundleListeners : filteredBundleListeners)
{
for (auto& bundleListener : bundleListeners.second)
{
try
{
std::get<0>(bundleListener.second)(evt);
}
catch (...)
{
SendFrameworkEvent(FrameworkEvent(
FrameworkEvent::Type::FRAMEWORK_ERROR,
MakeBundle(bundleListeners.first->bundle->shared_from_this()),
std::string("Bundle listener threw an exception"),
std::current_exception()));
}
}
}
}
void BundleHooks::FilterBundleEventReceivers(
const BundleEvent& evt,
ServiceListeners::BundleListenerMap& bundleListeners)
{
std::vector<ServiceRegistrationBase> eventHooks;
coreCtx->services.Get(us_service_interface_iid<BundleEventHook>(),
eventHooks);
{
auto l = coreCtx->listeners.bundleListenerMap.Lock();
US_UNUSED(l);
bundleListeners = coreCtx->listeners.bundleListenerMap.value;
}
if (!eventHooks.empty()) {
std::vector<BundleContext> bundleContexts;
for (auto& le : bundleListeners) {
bundleContexts.push_back(MakeBundleContext(le.first->shared_from_this()));
}
std::sort(bundleContexts.begin(), bundleContexts.end());
bundleContexts.erase(
std::unique(bundleContexts.begin(), bundleContexts.end()),
bundleContexts.end());
const std::size_t unfilteredSize = bundleContexts.size();
ShrinkableVector<BundleContext> filtered(bundleContexts);
std::sort(eventHooks.begin(), eventHooks.end());
for (auto iter = eventHooks.rbegin(), iterEnd = eventHooks.rend();
iter != iterEnd;
++iter) {
ServiceReference<BundleEventHook> sr;
try {
sr = iter->GetReference();
} catch (const std::logic_error&) {
std::string message("Failed to get event hook service reference");
coreCtx->listeners.SendFrameworkEvent(
FrameworkEvent(FrameworkEvent::Type::FRAMEWORK_WARNING,
GetBundleContext().GetBundle(),
message,
std::current_exception()));
continue;
}
std::shared_ptr<BundleEventHook> eh =
std::static_pointer_cast<BundleEventHook>(sr.d.load()->GetService(
GetPrivate(GetBundleContext().GetBundle()).get()));
if (eh) {
try {
eh->Event(evt, filtered);
} catch (...) {
std::string message("Failed to call Bundle EventHook # " +
sr.GetProperty(Constants::SERVICE_ID).ToString());
coreCtx->listeners.SendFrameworkEvent(
FrameworkEvent(FrameworkEvent::Type::FRAMEWORK_WARNING,
GetBundleContext().GetBundle(),
message,
std::current_exception()));
}
}
}
if (unfilteredSize != bundleContexts.size()) {
for (ServiceListeners::BundleListenerMap::iterator le =
bundleListeners.begin();
le != bundleListeners.end();) {
if (std::find_if(bundleContexts.begin(),
bundleContexts.end(),
[&le](const BundleContext& bc) {
return GetPrivate(bc) == le->first;
}) == bundleContexts.end()) {
bundleListeners.erase(le++);
} else {
++le;
}
}
}
}
}
