private void updateCategory() throws Exception {
int id = 0;
for (LabelGroup group : labelGroups) {
CCategory groupCategory = null;
for (CLabel label : group.labels) {
CCategory labelCategory = label.getCategory();
if (null == groupCategory && null != labelCategory) {
groupCategory = labelCategory;
}
if (null != groupCategory && !labelCategory.equals(groupCategory)) {
// TODO generating an exception or warning
throw new Exception(
String.format(
"Labels in the same group are belong more than one categories: \"%s\" and \"%s\"",
groupCategory.getName(), labelCategory.getName()));
}
}
if (null == groupCategory) {
id++;
try {
category = getOwner().getLocalCategoryBox().newCategory(GROUP_FIELD_NAME + id);
} catch (Exception e) {
// TODO is it possible?
e.printStackTrace();
}
}
for (CLabel label : group.labels) {
label.setCategory(category);
}
}
}
private void initLabelGroups() {
if (labelPairs.size() == 0) return;
List<LabelPair> tempPairs = new ArrayList(labelPairs.size());
tempPairs.addAll(labelPairs);
Stack<CLabel> groupStack = new Stack<CLabel>();
List<LabelPair> trash = new ArrayList<LabelPair>();
while (tempPairs.size() > 0) {
LabelPair pair0 = tempPairs.get(0);
LabelGroup group = newLabelGroup();
group.addLabel(pair0.label1);
group.addLabel(pair0.label2);
groupStack.push(pair0.label1);
groupStack.push(pair0.label2);
tempPairs.remove(0);
while (!groupStack.empty()) {
CLabel groupedLabel = groupStack.pop();
Iterator<LabelPair> pairs = tempPairs.iterator();
while (pairs.hasNext()) {
LabelPair pair = pairs.next();
CLabel candidate =
groupedLabel.equals(pair.label1)
? pair.label2
: groupedLabel.equals(pair.label2) ? pair.label1 : null;
if (null == candidate) continue;
if (!groupStack.contains(candidate)) {
groupStack.push(candidate);
group.labels.add(candidate);
}
trash.add(pair);
pairs.remove();
}
}
tempPairs.removeAll(trash);
trash.clear();
}
}
@Override
public int hashCode() {
int result = label1 != null ? label1.hashCode() : 0;
result += label2 != null ? label2.hashCode() : 0;
return result;
}