/**
* Creates a peer and starts to listen for incoming connections.
*
* @return The peer that can operate in the P2P network.
* @throws IOException .
*/
public Peer start() throws IOException {
boolean isBehindFirewallSet = false;
if (behindFirewall == null) {
behindFirewall = false;
} else {
isBehindFirewallSet = true;
}
boolean isTcpPortSet = false;
if (tcpPort == -1) {
tcpPort = Ports.DEFAULT_PORT;
} else {
isTcpPortSet = true;
}
boolean isUdpPortSet = false;
if (udpPort == -1) {
udpPort = Ports.DEFAULT_PORT;
} else {
isUdpPortSet = true;
}
if (channelServerConfiguration == null) {
channelServerConfiguration = createDefaultChannelServerConfiguration();
}
// post config
if (isBehindFirewallSet) {
channelServerConfiguration.behindFirewall(behindFirewall);
}
if (isTcpPortSet || isUdpPortSet) {
channelServerConfiguration.ports(new Ports(tcpPort, udpPort, udpPort + 1));
}
if (tcpPortForwarding == -1 && udpPortForwarding == -1) {
channelServerConfiguration.portsForwarding(new Ports());
} else {
channelServerConfiguration.portsForwarding(
new Ports(tcpPortForwarding, udpPortForwarding, udpPortForwarding + 1));
}
if (channelClientConfiguration == null) {
channelClientConfiguration = createDefaultChannelClientConfiguration();
}
if (keyPair == null) {
keyPair = EMPTY_KEY_PAIR;
}
if (p2pID == -1) {
p2pID = 1;
}
if (bindings == null) {
bindings = new Bindings();
} else {
channelServerConfiguration.bindings(bindings);
channelClientConfiguration.bindings(bindings);
}
if (peerMap == null) {
peerMap = new PeerMap(new PeerMapConfiguration(peerId));
}
if (masterPeer == null && scheduledExecutorService == null) {
scheduledExecutorService = Executors.newScheduledThreadPool(1);
}
if (sendBehavior == null) {
sendBehavior = new DefaultSendBehavior();
}
final PeerCreator peerCreator;
if (masterPeer != null) {
peerCreator = new PeerCreator(masterPeer.peerCreator(), peerId, keyPair);
} else {
peerCreator =
new PeerCreator(
p2pID,
peerId,
keyPair,
channelServerConfiguration,
channelClientConfiguration,
scheduledExecutorService,
sendBehavior);
}
final Peer peer = new Peer(p2pID, peerId, peerCreator);
// add shutdown hook to master peer
if (masterPeer != null) {
masterPeer.addShutdownListener(
new Shutdown() {
@Override
public BaseFuture shutdown() {
return peer.shutdown();
}
});
}
PeerBean peerBean = peerCreator.peerBean();
peerBean.addPeerStatusListener(peerMap);
ConnectionBean connectionBean = peerCreator.connectionBean();
peerBean.peerMap(peerMap);
peerBean.keyPair(keyPair);
if (bloomfilterFactory == null) {
peerBean.bloomfilterFactory(new DefaultBloomfilterFactory());
}
if (broadcastHandler == null) {
broadcastHandler = new StructuredBroadcastHandler();
}
broadcastHandler.init(peer);
// set/enable RPC
if (isEnableHandShakeRPC()) {
PingRPC pingRPC = new PingRPC(peerBean, connectionBean);
peer.pingRPC(pingRPC);
}
if (isEnableQuitRPC()) {
QuitRPC quitRPC = new QuitRPC(peerBean, connectionBean);
quitRPC.addPeerStatusListener(peerMap);
peer.quitRPC(quitRPC);
}
if (isEnableNeighborRPC()) {
NeighborRPC neighborRPC = new NeighborRPC(peerBean, connectionBean);
peer.neighborRPC(neighborRPC);
}
if (isEnableDirectDataRPC()) {
DirectDataRPC directDataRPC = new DirectDataRPC(peerBean, connectionBean);
peer.directDataRPC(directDataRPC);
}
if (isEnableBroadcast()) {
BroadcastRPC broadcastRPC = new BroadcastRPC(peerBean, connectionBean, broadcastHandler);
peer.broadcastRPC(broadcastRPC);
}
if (isEnableRouting() && isEnableNeighborRPC()) {
DistributedRouting routing = new DistributedRouting(peerBean, peer.neighborRPC());
peer.distributedRouting(routing);
}
if (maintenanceTask == null && isEnableMaintenance()) {
maintenanceTask = new MaintenanceTask();
}
if (maintenanceTask != null) {
maintenanceTask.init(peer, connectionBean.timer());
maintenanceTask.addMaintainable(peerMap);
}
peerBean.maintenanceTask(maintenanceTask);
// set the ping builder for the heart beat
connectionBean
.sender()
.pingBuilderFactory(
new PingBuilderFactory() {
@Override
public PingBuilder create() {
return peer.ping();
}
});
for (PeerInit peerInit : toInitialize) {
peerInit.init(peer);
}
return peer;
}