List<Edge> detectDeadlock() {
Collection<Map<String, MapLockState>> collection =
(Collection<Map<String, MapLockState>>) callOnAllMembers(new LockInformationCallable());
List<Vertex> graph = new ArrayList<Vertex>();
for (Map<String, MapLockState> mapLockStateMap : collection) {
for (MapLockState map : mapLockStateMap.values()) {
for (Object key : map.getLockOwners().keySet()) {
Vertex owner = new Vertex(map.getLockOwners().get(key));
Vertex requester = new Vertex(map.getLockRequested().get(key));
int index = graph.indexOf(owner);
if (index >= 0) {
owner = graph.get(index);
} else {
graph.add(owner);
}
index = graph.indexOf(requester);
if (index >= 0) {
requester = graph.get(index);
} else {
graph.add(requester);
}
Edge edge = new Edge();
edge.from = requester;
edge.to = owner;
edge.key = key;
edge.mapName = map.getMapName();
edge.globalLock = map.isGlobalLock();
owner.addIncoming(edge);
requester.addOutgoing(edge);
}
}
}
List<Edge> list = new ArrayList<Edge>();
if (graph != null && graph.size() > 0) {
try {
graph.get(0).visit(list);
} catch (RuntimeException e) {
}
}
return list;
}
