Exemplo n.º 1
0
 public void addSubscription(NodeDescriptor n, Filter f) {
   List filters = (List) data.get(n);
   if (filters == null) {
     filters = new ArrayList();
     filters.add(f);
     data.put(n, filters);
   } else {
     if (!filters.contains(f)) filters.add(f);
   }
 }
Exemplo n.º 2
0
 public Collection getSubscribedNeighbors(Filter f) {
   List matchingNeighbors = new ArrayList();
   // iterates over the subscribed neighbors
   Set keys = data.keySet();
   synchronized (data) {
     Iterator it = keys.iterator();
     NodeDescriptor currentNeighbor;
     while (it.hasNext()) {
       currentNeighbor = (NodeDescriptor) it.next();
       // Check if currentNeighbor is subscribed to the message
       if (((Collection) data.get(currentNeighbor)).contains(f)) {
         matchingNeighbors.add(currentNeighbor);
       }
     }
   }
   return matchingNeighbors;
 }
Exemplo n.º 3
0
 public Collection matches(Message message, NodeDescriptor senderID) {
   List matchingNeighbors = new ArrayList();
   // iterates over the subscribed neighbors
   Set keys = data.keySet();
   synchronized (data) {
     Iterator it = keys.iterator();
     NodeDescriptor currentNeighbor;
     while (it.hasNext()) {
       currentNeighbor = (NodeDescriptor) it.next();
       // Check if currentNeighbor is subscribed to the message
       // iterates over the set of filters for currentNeighbor
       if (senderID.equals(currentNeighbor)) continue;
       Iterator it1 = ((Collection) data.get(currentNeighbor)).iterator();
       while (it1.hasNext()) {
         Filter f = (Filter) it1.next();
         if (f.matches(message)) {
           matchingNeighbors.add(currentNeighbor);
           break;
         }
       }
     }
   }
   return matchingNeighbors;
 }