public void removeLeafBlock(T networkNode) {
validateNotMutating();
mutating = true;
try {
if (!leafNodes.remove(networkNode.location, networkNode)) {
throw new IllegalArgumentException("Leaf node not found in the BlockNetwork");
}
final Iterator<SimpleNetwork<T>> networkIterator = networks.iterator();
while (networkIterator.hasNext()) {
final SimpleNetwork<T> network = networkIterator.next();
if (network.hasLeafNode(networkNode)) {
boolean degenerate = network.removeLeafNode(networkNode);
if (!degenerate) {
notifyLeafNodesRemoved(network, Collections.singleton(networkNode));
} else {
T onlyLeafNode = network.getLeafNodes().iterator().next();
notifyLeafNodesRemoved(network, Sets.newHashSet(networkNode, onlyLeafNode));
networkIterator.remove();
notifyNetworkRemoved(network);
}
}
}
} finally {
mutating = false;
}
}
