protected void setSubscriptions(Subscriptions eventing) {
eventing.setImplBean(
new ISubscriptionsService() {
private String[] eventNames = null;
public String subscribe(
String endpoint, boolean isRestEndpoint, String path, String eventName) {
SuperTenantCarbonContext.startTenantFlow();
try {
SuperTenantCarbonContext.getCurrentContext()
.setTenantId(MultitenantConstants.SUPER_TENANT_ID);
UserRegistry registry =
Utils.getRegistryService().getRegistry(CarbonConstants.REGISTRY_SYSTEM_USERNAME);
if (RegistryUtils.isRegistryReadOnly(registry.getRegistryContext())) {
return null;
}
SubscriptionBean subscriptionBean =
SubscriptionBeanPopulator.subscribeAndPopulate(
registry, path, endpoint, eventName, isRestEndpoint);
if (subscriptionBean != null
&& subscriptionBean.getSubscriptionInstances() != null
&& subscriptionBean.getSubscriptionInstances().length > 0)
return subscriptionBean.getSubscriptionInstances()[0].getId();
} catch (RegistryException e) {
log.error("An error occurred while subscribing", e);
} finally {
SuperTenantCarbonContext.endTenantFlow();
}
return "";
}
public void unsubscribe(String id) {
SuperTenantCarbonContext.startTenantFlow();
try {
SuperTenantCarbonContext.getCurrentContext()
.setTenantId(MultitenantConstants.SUPER_TENANT_ID);
Utils.getRegistryEventingService().unsubscribe(id);
} finally {
SuperTenantCarbonContext.endTenantFlow();
}
}
public String[] getEventNames() {
if (eventNames != null) {
return eventNames;
}
Set<String> output = new TreeSet<String>();
Collection values = Utils.getRegistryEventingService().getEventTypes().values();
for (Object value : values) {
String[] types = (String[]) value;
if (types[0] != null) {
output.add(types[0]);
}
if (types[1] != null) {
output.add(types[1]);
}
}
eventNames = output.toArray(new String[output.size()]);
return eventNames;
}
public String[] getList() {
List<String> output = new LinkedList<String>();
SuperTenantCarbonContext.startTenantFlow();
try {
SuperTenantCarbonContext.getCurrentContext()
.setTenantId(MultitenantConstants.SUPER_TENANT_ID);
List<Subscription> subscriptions =
Utils.getRegistryEventingService().getAllSubscriptions();
for (Subscription subscription : subscriptions) {
output.add(
subscription.getId()
+ ":"
+ subscription.getTopicName()
+ ":"
+ subscription.getEventSinkURL());
}
} catch (EventBrokerException e) {
log.error("Unable to retrieve subscriptions", e);
} finally {
SuperTenantCarbonContext.endTenantFlow();
}
return output.toArray(new String[output.size()]);
}
});
}
protected void unsetSubscriptions(Subscriptions eventing) {
eventing.setImplBean(null);
}