Example #1
0
        /// <summary>
        /// Creates peers for benchmarking. The first peer will be used as the master.
        /// This means that shutting down the master will shut down all other peers as well.
        /// </summary>
        /// <param name="nrOfPeers">Number of peers to create.</param>
        /// <param name="rnd">The random object used for peer ID creation.</param>
        /// <param name="port">The UDP and TCP port.</param>
        /// <param name="maintenance">Indicates whether maintenance should be enabled.</param>
        /// <param name="timeout">Indicates whether timeout should be enabled.</param>
        /// <returns></returns>
        public static Peer[] CreateNodes(int nrOfPeers, InteropRandom rnd, int port, bool maintenance, bool timeout)
        {
            Console.WriteLine("Creating network with {0} peers...", nrOfPeers);

            var peers = new Peer[nrOfPeers];

            var masterId = CreateRandomId(rnd);
            var masterMap = new PeerMap(new PeerMapConfiguration(masterId));
            var pb = new PeerBuilder(masterId)
                .SetPorts(port)
                .SetEnableMaintenance(maintenance)
                .SetExternalBindings(new Bindings())
                .SetPeerMap(masterMap);
            if (!timeout)
            {
                pb.SetChannelServerConfiguration(CreateInfiniteTimeoutChannelServerConfiguration(port));
            }
            peers[0] = pb.Start();
            //Logger.Info("Created master peer: {0}.", peers[0].PeerId);

            for (int i = 1; i < nrOfPeers; i++)
            {
                peers[i] = CreateSlave(peers[0], rnd, maintenance, timeout);
            }
            return peers;
        }
Example #2
0
        /// <summary>
        /// Creates peers for benchmarking. The first peer will be used as the master.
        /// This means that shutting down the master will shut down all other peers as well.
        /// </summary>
        /// <param name="nrOfPeers">Number of peers to create.</param>
        /// <param name="rnd">The random object used for peer ID creation.</param>
        /// <param name="port">The UDP and TCP port.</param>
        /// <param name="maintenance">Indicates whether maintenance should be enabled.</param>
        /// <param name="timeout">Indicates whether timeout should be enabled.</param>
        /// <returns></returns>
        public static Peer[] CreateNodes(int nrOfPeers, InteropRandom rnd, int port, bool maintenance, bool timeout)
        {
            Console.WriteLine("Creating network with {0} peers...", nrOfPeers);

            var peers = new Peer[nrOfPeers];

            var masterId  = CreateRandomId(rnd);
            var masterMap = new PeerMap(new PeerMapConfiguration(masterId));
            var pb        = new PeerBuilder(masterId)
                            .SetPorts(port)
                            .SetEnableMaintenance(maintenance)
                            .SetExternalBindings(new Bindings())
                            .SetPeerMap(masterMap);

            if (!timeout)
            {
                pb.SetChannelServerConfiguration(CreateInfiniteTimeoutChannelServerConfiguration(port));
            }
            peers[0] = pb.Start();
            //Logger.Info("Created master peer: {0}.", peers[0].PeerId);

            for (int i = 1; i < nrOfPeers; i++)
            {
                peers[i] = CreateSlave(peers[0], rnd, maintenance, timeout);
            }
            return(peers);
        }
Example #3
0
        /// <summary>
        /// Creates peers for testing. The first peer will be used as the master.
        /// This means that shutting down the master will shut down all other peers as well.
        /// </summary>
        /// <param name="nrOfPeers"></param>
        /// <param name="rnd"></param>
        /// <param name="port"></param>
        /// <param name="automaticTask"></param>
        /// <param name="maintenance"></param>
        /// <returns></returns>
        public static Peer[] CreateNodes(int nrOfPeers, Random rnd, int port, IAutomaticTask automaticTask, bool maintenance)
        {
            var bindings = new Bindings();
            var peers    = new Peer[nrOfPeers];

            if (automaticTask != null)
            {
                var peerId  = new Number160(rnd);
                var peerMap = new PeerMap(new PeerMapConfiguration(peerId));
                peers[0] = new PeerBuilder(peerId)
                           .SetPorts(port)
                           .SetEnableMaintenance(maintenance)
                           .SetExternalBindings(bindings)
                           .SetPeerMap(peerMap)
                           .Start()
                           .AddAutomaticTask(automaticTask);
            }
            else
            {
                var peerId  = new Number160(rnd);
                var peerMap = new PeerMap(new PeerMapConfiguration(peerId));
                peers[0] = new PeerBuilder(peerId)
                           .SetPorts(port)
                           .SetEnableMaintenance(maintenance)
                           .SetExternalBindings(bindings)
                           .SetPeerMap(peerMap)
                           .Start();
            }
            Console.WriteLine("Created master peer: {0}.", peers[0].PeerId);
            for (int i = 1; i < nrOfPeers; i++)
            {
                if (automaticTask != null)
                {
                    var peerId  = new Number160(rnd);
                    var peerMap = new PeerMap(new PeerMapConfiguration(peerId));
                    peers[i] = new PeerBuilder(peerId)
                               .SetMasterPeer(peers[0])
                               .SetEnableMaintenance(maintenance)
                               .SetExternalBindings(bindings)
                               .SetPeerMap(peerMap)
                               .Start()
                               .AddAutomaticTask(automaticTask);
                }
                else
                {
                    var peerId  = new Number160(rnd);
                    var peerMap = new PeerMap(new PeerMapConfiguration(peerId).SetPeerNoVerification());
                    peers[i] = new PeerBuilder(peerId)
                               .SetMasterPeer(peers[0])
                               .SetEnableMaintenance(maintenance)
                               .SetExternalBindings(bindings)
                               .SetPeerMap(peerMap)
                               .Start();
                }
                Console.WriteLine("Created slave peer {0}: {1}.", i, peers[i].PeerId);
            }
            return(peers);
        }
Example #4
0
 private static Peer CreateSlave(Peer master, InteropRandom rnd, bool maintenance, bool timeout)
 {
     var slaveId = CreateRandomId(rnd);
     var slaveMap = new PeerMap(new PeerMapConfiguration(slaveId).SetPeerNoVerification());
     var pb = new PeerBuilder(slaveId)
         .SetMasterPeer(master)
         .SetEnableMaintenance(maintenance)
         .SetExternalBindings(new Bindings())
         .SetPeerMap(slaveMap);
     if (!timeout)
     {
         pb.SetChannelServerConfiguration(CreateInfiniteTimeoutChannelServerConfiguration(Ports.DefaultPort));
     }
      var slave = pb.Start();
     //Logger.Info("Created slave peer {0}.", slave.PeerId);
     return slave;
 }
Example #5
0
        private static Peer CreateSlave(Peer master, InteropRandom rnd, bool maintenance, bool timeout)
        {
            var slaveId  = CreateRandomId(rnd);
            var slaveMap = new PeerMap(new PeerMapConfiguration(slaveId).SetPeerNoVerification());
            var pb       = new PeerBuilder(slaveId)
                           .SetMasterPeer(master)
                           .SetEnableMaintenance(maintenance)
                           .SetExternalBindings(new Bindings())
                           .SetPeerMap(slaveMap);

            if (!timeout)
            {
                pb.SetChannelServerConfiguration(CreateInfiniteTimeoutChannelServerConfiguration(Ports.DefaultPort));
            }
            var slave = pb.Start();

            //Logger.Info("Created slave peer {0}.", slave.PeerId);
            return(slave);
        }
Example #6
0
 public PeerBuilder SetPeerMap(PeerMap peerMap)
 {
     PeerMap = peerMap;
     return this;
 }
Example #7
0
        /// <summary>
        /// Creates a peer and starts to listen for incoming connections.
        /// </summary>
        /// <returns>The peer that can operate in the P2P network.</returns>
        public Peer Start()
        {
            if (_behindFirewall == null)
            {
                _behindFirewall = false;
            }

            if (ChannelServerConfiguration == null)
            {
                ChannelServerConfiguration = CreateDefaultChannelServerConfiguration();
                ChannelServerConfiguration.SetPortsForwarding(new Ports(TcpPortForwarding, UdpPortForwarding));
                if (TcpPort == -1)
                {
                    TcpPort = Ports.DefaultPort;
                }
                if (UdpPort == -1)
                {
                    UdpPort = Ports.DefaultPort;
                }
                ChannelServerConfiguration.SetPorts(new Ports(TcpPort, UdpPort));
                ChannelServerConfiguration.SetIsBehindFirewall(_behindFirewall.Value);
            }
            if (ChannelClientConfiguration == null)
            {
                ChannelClientConfiguration = CreateDefaultChannelClientConfiguration();
            }

            if (KeyPair == null)
            {
                KeyPair = EmptyKeyPair;
            }
            if (P2PId == -1)
            {
                P2PId = 1;
            }

            if (InterfaceBindings == null)
            {
                InterfaceBindings = new Bindings();
            }
            ChannelServerConfiguration.SetBindingsIncoming(InterfaceBindings);
            if (ExternalBindings == null)
            {
                ExternalBindings = new Bindings();
            }
            ChannelClientConfiguration.SetBindingsOutgoing(ExternalBindings);

            if (PeerMap == null)
            {
                PeerMap = new PeerMap(new PeerMapConfiguration(PeerId));
            }

            if (MasterPeer == null && Timer == null)
            {
                Timer = new ExecutorService();
            }

            PeerCreator peerCreator;
            if (MasterPeer != null)
            {
                // create slave peer
                peerCreator = new PeerCreator(MasterPeer.PeerCreator, PeerId, KeyPair);
            }
            else
            {
                // create master peer
                peerCreator = new PeerCreator(P2PId, PeerId, KeyPair, ChannelServerConfiguration, ChannelClientConfiguration, Timer);
            }

            var peer = new Peer(P2PId, PeerId, peerCreator);

            var peerBean = peerCreator.PeerBean;
            peerBean.AddPeerStatusListener(PeerMap);

            var connectionBean = peerCreator.ConnectionBean;

            peerBean.SetPeerMap(PeerMap);
            peerBean.SetKeyPair(KeyPair);

            if (BloomfilterFactory == null)
            {
                peerBean.SetBloomfilterFactory(new DefaultBloomFilterFactory());
            }

            if (BroadcastHandler == null)
            {
                BroadcastHandler = new DefaultBroadcastHandler(peer, new Random());
            }

            // set/enable RPC
            if (IsEnabledHandshakeRpc)
            {
                var pingRpc = new PingRpc(peerBean, connectionBean);
                peer.SetPingRpc(pingRpc);
            }
            if (IsEnabledQuitRpc)
            {
                var quitRpc = new QuitRpc(peerBean, connectionBean);
                quitRpc.AddPeerStatusListener(PeerMap);
                peer.SetQuitRpc(quitRpc);
            }
            if (IsEnabledNeighborRpc)
            {
                var neighborRpc = new NeighborRpc(peerBean, connectionBean);
                peer.SetNeighborRpc(neighborRpc);
            }
            if (IsEnabledDirectDataRpc)
            {
                var directDataRpc = new DirectDataRpc(peerBean, connectionBean);
                peer.SetDirectDataRpc(directDataRpc);
            }
            if (IsEnabledBroadcastRpc)
            {
                var broadcastRpc = new BroadcastRpc(peerBean, connectionBean, BroadcastHandler);
                peer.SetBroadcastRpc(broadcastRpc);
            }
            if (IsEnabledRoutingRpc && IsEnabledNeighborRpc)
            {
                var routing = new DistributedRouting(peerBean, peer.NeighborRpc);
                peer.SetDistributedRouting(routing);
            }

            if (MaintenanceTask == null && IsEnabledMaintenance)
            {
                MaintenanceTask = new MaintenanceTask();
            }
            if (MaintenanceTask != null)
            {
                MaintenanceTask.Init(peer, connectionBean.Timer);
                MaintenanceTask.AddMaintainable(PeerMap);
            }
            peerBean.SetMaintenanceTask(MaintenanceTask);

            // set the ping builder for the heart beat
            connectionBean.Sender.SetPingBuilderFactory(new PingBuilderFactory(peer));

            foreach (var peerInit in _toInitialize)
            {
                peerInit.Init(peer);
            }
            return peer;
        }
Example #8
0
 /// <summary>
 /// Sets a new map storing neighbors for this peer.
 /// </summary>
 /// <param name="peerMap">The new map that stores neighbors.</param>
 /// <returns>This class.</returns>
 public PeerBean SetPeerMap(PeerMap peerMap)
 {
     PeerMap = peerMap;
     return(this);
 }
Example #9
0
	private static void Configure (Stream input) {
		XmlDocument doc = new XmlDocument ();
		doc.Load (input);

		// assemblies

		assembly_paths = new ArrayList ();
		assembly_paths.Add (".");

		foreach (XmlNode node in doc.SelectNodes ("config/assemblypath")) {
			assembly_paths.Add (node.Attributes["path"].Value);
		}

		assemblies = new ArrayList ();
		foreach (XmlNode node in doc.SelectNodes ("config/assembly")) {
			assemblies.Add (node.Attributes["file"].Value);
		}

		LoadAssemblies ();

		// outputfiles

		output_path = ".";
		XmlNode path_node = doc.SelectSingleNode ("config/outputpath");
		if (path_node != null)
			output_path = path_node.Attributes["path"].Value;

		output_files = new Hashtable ();
		output_includes = new Hashtable ();
		foreach (XmlNode node in doc.SelectNodes ("config/outputfile")) {
			string name = node.Attributes["name"].Value;
			output_files.Add (name, node.Attributes["file"].Value);

			foreach (XmlNode child in node.ChildNodes) {
				if (child.Name == "include")
					output_includes[name] = child.InnerText;
			}
		}

		// typemap

		peer_map = new PeerMap ();
		foreach (XmlNode node in doc.SelectNodes ("config/typemap/namespace")) {
			string ns = node.Attributes["name"].Value;

			foreach (XmlNode child in node.ChildNodes) {
				if (child.Name == "type") {
					string name = child.Attributes["name"].Value;
					string peer_name = child.Attributes["peer"].Value;

					bool opaque = false;
					if (child.Attributes["opaque"] != null && child.Attributes["opaque"].Value == "true")
						opaque = true;

					String fullname = String.Format ("{0}.{1}", ns, name);
					
					Type type;
					if (child.Attributes["default"] != null && child.Attributes["default"].Value == "true")
						type = Type.GetType (fullname);
					else
						type = (Type)types [fullname];

					if (type != null)
						peer_map.Add (new Peer (type, peer_name, opaque));
				}
			}
		}

		peer_map.ResolvePeers ();
	}
Example #10
0
 public Statistics(PeerMap peerMap)
 {
     _peerMap = peerMap;
     AvgGap   = Max / 2;
 }
Example #11
0
 /// <summary>
 /// Sets a new map storing neighbors for this peer.
 /// </summary>
 /// <param name="peerMap">The new map that stores neighbors.</param>
 /// <returns>This class.</returns>
 public PeerBean SetPeerMap(PeerMap peerMap)
 {
     PeerMap = peerMap;
     return this;
 }
Example #12
0
 public PeerBuilder SetPeerMap(PeerMap peerMap)
 {
     PeerMap = peerMap;
     return(this);
 }
Example #13
0
        /// <summary>
        /// Creates a peer and starts to listen for incoming connections.
        /// </summary>
        /// <returns>The peer that can operate in the P2P network.</returns>
        public Peer Start()
        {
            if (_behindFirewall == null)
            {
                _behindFirewall = false;
            }

            if (ChannelServerConfiguration == null)
            {
                ChannelServerConfiguration = CreateDefaultChannelServerConfiguration();
                ChannelServerConfiguration.SetPortsForwarding(new Ports(TcpPortForwarding, UdpPortForwarding));
                if (TcpPort == -1)
                {
                    TcpPort = Ports.DefaultPort;
                }
                if (UdpPort == -1)
                {
                    UdpPort = Ports.DefaultPort;
                }
                ChannelServerConfiguration.SetPorts(new Ports(TcpPort, UdpPort));
                ChannelServerConfiguration.SetIsBehindFirewall(_behindFirewall.Value);
            }
            if (ChannelClientConfiguration == null)
            {
                ChannelClientConfiguration = CreateDefaultChannelClientConfiguration();
            }

            if (KeyPair == null)
            {
                KeyPair = EmptyKeyPair;
            }
            if (P2PId == -1)
            {
                P2PId = 1;
            }

            if (InterfaceBindings == null)
            {
                InterfaceBindings = new Bindings();
            }
            ChannelServerConfiguration.SetBindingsIncoming(InterfaceBindings);
            if (ExternalBindings == null)
            {
                ExternalBindings = new Bindings();
            }
            ChannelClientConfiguration.SetBindingsOutgoing(ExternalBindings);

            if (PeerMap == null)
            {
                PeerMap = new PeerMap(new PeerMapConfiguration(PeerId));
            }

            if (MasterPeer == null && Timer == null)
            {
                Timer = new ExecutorService();
            }

            PeerCreator peerCreator;

            if (MasterPeer != null)
            {
                // create slave peer
                peerCreator = new PeerCreator(MasterPeer.PeerCreator, PeerId, KeyPair);
            }
            else
            {
                // create master peer
                peerCreator = new PeerCreator(P2PId, PeerId, KeyPair, ChannelServerConfiguration, ChannelClientConfiguration, Timer);
            }

            var peer = new Peer(P2PId, PeerId, peerCreator);

            var peerBean = peerCreator.PeerBean;

            peerBean.AddPeerStatusListener(PeerMap);

            var connectionBean = peerCreator.ConnectionBean;

            peerBean.SetPeerMap(PeerMap);
            peerBean.SetKeyPair(KeyPair);

            if (BloomfilterFactory == null)
            {
                peerBean.SetBloomfilterFactory(new DefaultBloomFilterFactory());
            }

            if (BroadcastHandler == null)
            {
                BroadcastHandler = new DefaultBroadcastHandler(peer, new Random());
            }

            // set/enable RPC
            if (IsEnabledHandshakeRpc)
            {
                var pingRpc = new PingRpc(peerBean, connectionBean);
                peer.SetPingRpc(pingRpc);
            }
            if (IsEnabledQuitRpc)
            {
                var quitRpc = new QuitRpc(peerBean, connectionBean);
                quitRpc.AddPeerStatusListener(PeerMap);
                peer.SetQuitRpc(quitRpc);
            }
            if (IsEnabledNeighborRpc)
            {
                var neighborRpc = new NeighborRpc(peerBean, connectionBean);
                peer.SetNeighborRpc(neighborRpc);
            }
            if (IsEnabledDirectDataRpc)
            {
                var directDataRpc = new DirectDataRpc(peerBean, connectionBean);
                peer.SetDirectDataRpc(directDataRpc);
            }
            if (IsEnabledBroadcastRpc)
            {
                var broadcastRpc = new BroadcastRpc(peerBean, connectionBean, BroadcastHandler);
                peer.SetBroadcastRpc(broadcastRpc);
            }
            if (IsEnabledRoutingRpc && IsEnabledNeighborRpc)
            {
                var routing = new DistributedRouting(peerBean, peer.NeighborRpc);
                peer.SetDistributedRouting(routing);
            }

            if (MaintenanceTask == null && IsEnabledMaintenance)
            {
                MaintenanceTask = new MaintenanceTask();
            }
            if (MaintenanceTask != null)
            {
                MaintenanceTask.Init(peer, connectionBean.Timer);
                MaintenanceTask.AddMaintainable(PeerMap);
            }
            peerBean.SetMaintenanceTask(MaintenanceTask);

            // set the ping builder for the heart beat
            connectionBean.Sender.SetPingBuilderFactory(new PingBuilderFactory(peer));

            foreach (var peerInit in _toInitialize)
            {
                peerInit.Init(peer);
            }
            return(peer);
        }
Example #14
0
 /// <summary>
 /// Creates peers for testing. The first peer will be used as the master.
 /// This means that shutting down the master will shut down all other peers as well.
 /// </summary>
 /// <param name="nrOfPeers"></param>
 /// <param name="rnd"></param>
 /// <param name="port"></param>
 /// <param name="automaticTask"></param>
 /// <param name="maintenance"></param>
 /// <returns></returns>
 public static Peer[] CreateNodes(int nrOfPeers, Random rnd, int port, IAutomaticTask automaticTask, bool maintenance)
 {
     var bindings = new Bindings();
     var peers = new Peer[nrOfPeers];
     if (automaticTask != null)
     {
         var peerId = new Number160(rnd);
         var peerMap = new PeerMap(new PeerMapConfiguration(peerId));
         peers[0] = new PeerBuilder(peerId)
             .SetPorts(port)
             .SetEnableMaintenance(maintenance)
             .SetExternalBindings(bindings)
             .SetPeerMap(peerMap)
             .Start()
             .AddAutomaticTask(automaticTask);
     }
     else
     {
         var peerId = new Number160(rnd);
         var peerMap = new PeerMap(new PeerMapConfiguration(peerId));
         peers[0] = new PeerBuilder(peerId)
             .SetPorts(port)
             .SetEnableMaintenance(maintenance)
             .SetExternalBindings(bindings)
             .SetPeerMap(peerMap)
             .Start();
     }
     Console.WriteLine("Created master peer: {0}.", peers[0].PeerId);
     for (int i = 1; i < nrOfPeers; i++)
     {
         if (automaticTask != null)
         {
             var peerId = new Number160(rnd);
             var peerMap = new PeerMap(new PeerMapConfiguration(peerId));
             peers[i] = new PeerBuilder(peerId)
                 .SetMasterPeer(peers[0])
                 .SetEnableMaintenance(maintenance)
                 .SetExternalBindings(bindings)
                 .SetPeerMap(peerMap)
                 .Start()
                 .AddAutomaticTask(automaticTask);
         }
         else
         {
             var peerId = new Number160(rnd);
             var peerMap = new PeerMap(new PeerMapConfiguration(peerId).SetPeerNoVerification());
             peers[i] = new PeerBuilder(peerId)
                 .SetMasterPeer(peers[0])
                 .SetEnableMaintenance(maintenance)
                 .SetExternalBindings(bindings)
                 .SetPeerMap(peerMap)
                 .Start();
         }
         Console.WriteLine("Created slave peer {0}: {1}.", i, peers[i].PeerId);
     }
     return peers;
 }
Example #15
0
    private static void Configure(Stream input)
    {
        XmlDocument doc = new XmlDocument();

        doc.Load(input);

        // assemblies

        assembly_paths = new ArrayList();
        assembly_paths.Add(".");

        foreach (XmlNode node in doc.SelectNodes("config/assemblypath"))
        {
            assembly_paths.Add(node.Attributes["path"].Value);
        }

        assemblies = new ArrayList();
        foreach (XmlNode node in doc.SelectNodes("config/assembly"))
        {
            assemblies.Add(node.Attributes["file"].Value);
        }

        LoadAssemblies();

        // outputfiles

        output_path = ".";
        XmlNode path_node = doc.SelectSingleNode("config/outputpath");

        if (path_node != null)
        {
            output_path = path_node.Attributes["path"].Value;
        }

        output_files    = new Hashtable();
        output_includes = new Hashtable();
        foreach (XmlNode node in doc.SelectNodes("config/outputfile"))
        {
            string name = node.Attributes["name"].Value;
            output_files.Add(name, node.Attributes["file"].Value);

            foreach (XmlNode child in node.ChildNodes)
            {
                if (child.Name == "include")
                {
                    output_includes[name] = child.InnerText;
                }
            }
        }

        // typemap

        peer_map = new PeerMap();
        foreach (XmlNode node in doc.SelectNodes("config/typemap/namespace"))
        {
            string ns = node.Attributes["name"].Value;

            foreach (XmlNode child in node.ChildNodes)
            {
                if (child.Name == "type")
                {
                    string name      = child.Attributes["name"].Value;
                    string peer_name = child.Attributes["peer"].Value;

                    bool opaque = false;
                    if (child.Attributes["opaque"] != null && child.Attributes["opaque"].Value == "true")
                    {
                        opaque = true;
                    }

                    String fullname = String.Format("{0}.{1}", ns, name);

                    Type type;
                    if (child.Attributes["default"] != null && child.Attributes["default"].Value == "true")
                    {
                        type = Type.GetType(fullname);
                    }
                    else
                    {
                        type = (Type)types [fullname];
                    }

                    if (type != null)
                    {
                        peer_map.Add(new Peer(type, peer_name, opaque));
                    }
                }
            }
        }

        peer_map.ResolvePeers();
    }
Example #16
0
        /// <summary>
        /// Looks for a route to the given peer address.
        /// </summary>
        /// <param name="peerAddresses">Nodes that should be asked first for a route.</param>
        /// <param name="routingBuilder"></param>
        /// <param name="type"></param>
        /// <param name="cc"></param>
        /// <returns>A task object that is set to complete if the route has been found.</returns>
        private TcsRouting Routing(ICollection <PeerAddress> peerAddresses, RoutingBuilder routingBuilder,
                                   Message.Message.MessageType type, ChannelCreator cc)
        {
            try
            {
                if (peerAddresses == null)
                {
                    throw new ArgumentException("Some nodes/addresses need to be specified.");
                }
                bool randomSearch = routingBuilder.LocationKey == null;
                IComparer <PeerAddress> comparer;
                if (randomSearch)
                {
                    comparer = _peerBean.PeerMap.CreateComparer();
                }
                else
                {
                    comparer = PeerMap.CreateComparer(routingBuilder.LocationKey);
                }
                var queueToAsk   = new SortedSet <PeerAddress>(comparer);
                var alreadyAsked = new SortedSet <PeerAddress>(comparer);

                // As presented by Kazuyuki Shudo at AIMS 2009, it is better to ask random
                // peers with the data than ask peers that are ordered by distance.
                // -> this balances load
                var directHits    = new SortedDictionary <PeerAddress, DigestInfo>(comparer);
                var potentialHits = new SortedSet <PeerAddress>(comparer);

                // fill initially
                queueToAsk.AddAll(peerAddresses);
                alreadyAsked.Add(_peerBean.ServerPeerAddress);
                potentialHits.Add(_peerBean.ServerPeerAddress);

                // domain key can be null if we bootstrap
                if (type == Message.Message.MessageType.Request2 &&
                    routingBuilder.DomainKey != null &&
                    !randomSearch &&
                    _peerBean.DigestStorage != null)
                {
                    Number640 from;
                    Number640 to;
                    if (routingBuilder.From != null && routingBuilder.To != null)
                    {
                        from = routingBuilder.From;
                        to   = routingBuilder.To;
                    }
                    else if (routingBuilder.ContentKey == null)
                    {
                        from = new Number640(routingBuilder.LocationKey, routingBuilder.DomainKey, Number160.Zero, Number160.Zero);
                        to   = new Number640(routingBuilder.LocationKey, routingBuilder.DomainKey, Number160.MaxValue, Number160.MaxValue);
                    }
                    else
                    {
                        from = new Number640(routingBuilder.LocationKey, routingBuilder.DomainKey, routingBuilder.ContentKey, Number160.Zero);
                        to   = new Number640(routingBuilder.LocationKey, routingBuilder.DomainKey, routingBuilder.ContentKey, Number160.MaxValue);
                    }

                    var digestBean = _peerBean.DigestStorage.Digest(from, to, -1, true);
                    if (digestBean.Size > 0)
                    {
                        directHits.Add(_peerBean.ServerPeerAddress, digestBean);
                    }
                }
                else if (type == Message.Message.MessageType.Request3 &&
                         !randomSearch &&
                         _peerBean.DigestTracker != null)
                {
                    var digestInfo = _peerBean.DigestTracker.Digest(routingBuilder.LocationKey, routingBuilder.DomainKey,
                                                                    routingBuilder.ContentKey);
                    // we always put ourselfs to the tracker list, so we need to check
                    // if we know also other peers on our trackers
                    if (digestInfo.Size > 0)
                    {
                        directHits.Add(_peerBean.ServerPeerAddress, digestInfo);
                    }
                }

                var tcsRouting = new TcsRouting();
                if (peerAddresses.Count == 0)
                {
                    tcsRouting.SetNeighbors(directHits, potentialHits, alreadyAsked, routingBuilder.IsBootstrap, false);
                }
                else
                {
                    // If a peer bootstraps to itself, then the size of peer addresses is 1
                    // and it contains itself. Check for that because we need to know if we
                    // are routing, bootstrapping and bootstrapping to ourselfs, to return
                    // the correct status for the task.
                    var isRoutingOnlyToSelf = peerAddresses.Count == 1 &&
                                              peerAddresses.First().Equals(_peerBean.ServerPeerAddress);

                    var routingMechanism = routingBuilder.CreateRoutingMechanism(tcsRouting);
                    routingMechanism.SetQueueToAsk(queueToAsk);
                    routingMechanism.SetPotentialHits(potentialHits);
                    routingMechanism.SetDirectHits(directHits);
                    routingMechanism.SetAlreadyAsked(alreadyAsked);

                    routingBuilder.SetIsRoutingOnlyToSelf(isRoutingOnlyToSelf);
                    RoutingRec(routingBuilder, routingMechanism, type, cc);
                }
                return(tcsRouting);
            }
            catch (Exception ex)
            {
                Logger.Error("An exception occurred during routing.", ex);
                throw;
            }
        }
Example #17
0
 public Statistics(PeerMap peerMap)
 {
     _peerMap = peerMap;
     AvgGap = Max / 2;
 }