private void compactNodes(T node) {
for (int i = 0; i < node.getChildCount(); i++) {
MPSTreeNode child = (MPSTreeNode) node.getChildAt(i);
if (myBuilder.isNamespaceNode(child)) {
compactNodes((T) child);
}
}
if (node.getParent() != null
&& // skip root
node.getChildCount() == 1
&& myBuilder.isNamespaceNode((MPSTreeNode) node.getChildAt(0))) {
T child = (T) node.getChildAt(0);
myBuilder.setName(node, myBuilder.getName(node) + "." + myBuilder.getName(child));
Enumeration children = child.children();
List<MPSTreeNode> oldChildren = new ArrayList<MPSTreeNode>();
while (children.hasMoreElements()) {
oldChildren.add((MPSTreeNode) children.nextElement());
}
for (MPSTreeNode c : oldChildren) {
child.remove(c);
node.add(c);
}
node.remove(child);
}
}
private T getSubnamespace(T sourceNode, List<String> pathElements, IOperationContext context) {
if (pathElements.size() == 0) return sourceNode;
String first = pathElements.get(0);
List<String> otherElements = pathElements.subList(1, pathElements.size());
for (int i = 0; i < sourceNode.getChildCount(); i++) {
if (myBuilder.isNamespaceNode((MPSTreeNode) sourceNode.getChildAt(i))) {
T child = (T) sourceNode.getChildAt(i);
if (first.equals(myBuilder.getName(child))) {
return getSubnamespace(child, otherElements, context);
}
}
}
IModule module = (context != null) ? context.getModule() : null;
T newChild =
myBuilder.createNamespaceNode(first, new ModuleChangingOperationContext(module, context));
sourceNode.add(newChild);
return getSubnamespace(newChild, otherElements, context);
}
