private static void getAllReceiveMessages(Source input, List<ReceiveMessage> result) {
if (input instanceof SimpleSource) {
result.add(((SimpleSource) input).getMessage());
} else if (input instanceof SourceComposition) {
SourceComposition composition = (SourceComposition) input;
for (Source s : composition.getSources()) {
getAllReceiveMessages(s, result);
}
}
}
public static List<ReceiveMessage> allReceiveMessages(Source input) {
List<ReceiveMessage> result = new ArrayList<>();
getAllReceiveMessages(input, result);
return result;
}