public void ensureIds() {
Set<String> ids = new HashSet<>();
List<ProcessNode<?, ?>> unnamedNodes = new ArrayList<>();
for (ProcessNode<?, ?> node : getModelNodes()) {
String id = node.getId();
if (id == null) {
unnamedNodes.add(node);
} else {
ids.add(id);
}
}
Map<String, Integer> startCounts = new HashMap<>();
for (ProcessNode<?, ?> unnamed : unnamedNodes) {
String idBase = unnamed.getIdBase();
int startCount = getOrDefault(startCounts, idBase, 1);
for (String id = idBase + Integer.toString(startCount);
ids.contains(id);
id = idBase + Integer.toString(startCount)) {
++startCount;
}
unnamed.setId(idBase + Integer.toString(startCount));
startCounts.put(idBase, startCount + 1);
}
}
private static int getOrDefault(
final Map<String, Integer> map, final String key, final int defaultValue) {
final Integer val = map.get(key);
return val == null ? defaultValue : val.intValue();
}