@Override
public Collection<StateVariableValue> readEventedStateVariableValues(boolean isNewSubscription)
throws Exception {
lock();
try {
Collection<StateVariableValue> values;
if (isNewSubscription) {
values = readInitialEventedStateVariableValues();
if (values != null) {
log.fine(
"Obtained initial state variable values for event, skipping individual state variable accessors");
return values;
}
}
values = new ArrayList();
for (StateVariable stateVariable : getService().getStateVariables()) {
if (stateVariable.getEventDetails().isSendEvents()) {
StateVariableAccessor accessor = getService().getAccessor(stateVariable);
if (accessor == null)
throw new IllegalStateException("No accessor for evented state variable");
values.add(accessor.read(stateVariable, getImplementation()));
}
}
return values;
} finally {
unlock();
}
}
private Collection<StateVariableValue> readEventedStateVariableValues(List<String> variableNames)
throws Exception {
lock();
try {
Collection<StateVariableValue> values = new ArrayList<StateVariableValue>();
for (String variableName : variableNames) {
StateVariable stateVariable = getService().getStateVariable(variableName);
if (stateVariable == null || !stateVariable.getEventDetails().isSendEvents()) {
log.warning("ignoring unknown or non-eventing variable: " + variableName);
continue;
}
StateVariableAccessor accessor = getService().getAccessor(stateVariable);
if (accessor == null) {
log.warning("ignoring eventing variable without accessor: " + variableName);
continue;
}
values.add(accessor.read(stateVariable, getImplementation()));
}
return values;
} finally {
unlock();
}
}