/*
* Mojito Distributed Hash Table (Mojito DHT)
* Copyright (C) 2006-2007 LimeWire LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.limewire.mojito.util;
import java.util.Collection;
import org.limewire.mojito.routing.Contact;
import org.limewire.mojito.routing.RouteTable;
/**
* Utilities for the RouteTable.
*/
public class RouteTableUtils {
private RouteTableUtils() {}
/**
* Returns the percentage of active Contacts that are alive
* in the RouteTable.
*/
public static float getPercentageOfAliveContacts(RouteTable routeTable) {
Collection<Contact> activeContacts = routeTable.getActiveContacts();
if (activeContacts.isEmpty()) {
return 0.0f;
}
int alive = 0;
for (Contact node : activeContacts) {
if (node.isAlive()) {
alive++;
}
}
return ((float)alive)/((float)activeContacts.size());
}
}