public boolean isActive() {
try {
getInstance();
return serviceInstance.isActive();
} catch (ServiceImporterException e) {
return false;
}
}
private T getInstance() throws ServiceImporterException {
// DCL that works with Java 1.5 volatile semantics
if (serviceInstance == null) {
synchronized (this) {
if (serviceInstance == null) {
serviceInstance = (ImportedServiceInstance<T>) serviceModel.<T>importInstance(module);
instance = serviceInstance.instance();
}
}
}
return instance;
}