Added command line option to set listening interface for DHTManager seed peer

src/main/java/io/bitsquare/BitSquare.java

@@ -45,6 +45,7 @@ public class BitSquare {
 
     private static String appName = "Bitsquare";
     private static int clientPort;
+    private static String interfaceHint;
 
     public static String getAppName() {
         return appName;
@@ -70,6 +71,10 @@ public class BitSquare {
                 appName = appName + "-" + namespace.getString(BitsquareArgumentParser.NAME_FLAG);
             }
 
+            if (namespace.getString(BitsquareArgumentParser.INFHINT_FLAG) != null) {
+                interfaceHint = namespace.getString(BitsquareArgumentParser.INFHINT_FLAG);
+            }
+
             if (namespace.getBoolean(BitsquareArgumentParser.SEED_FLAG) == true) {
                 Integer port = BitsquareArgumentParser.PORT_DEFAULT;
                 if (namespace.getString(BitsquareArgumentParser.PORT_FLAG) != null) {
@@ -80,7 +85,7 @@ public class BitSquare {
 
                 ActorRef seedNode = actorSystem.actorOf(DHTManager.getProps(), DHTManager.SEED_NAME);
                 Inbox inbox = Inbox.create(actorSystem);
-                inbox.send(seedNode, new InitializePeer(Number160.createHash("localhost"), port, null));
+                inbox.send(seedNode, new InitializePeer(Number160.createHash("localhost"), port, interfaceHint, null));
 
                 Thread seedNodeThread = new Thread(() -> {
                     Boolean quit = false;

src/main/java/io/bitsquare/msg/DHTSeedService.java

@@ -42,6 +42,6 @@ public class DHTSeedService extends ActorService {
     public void initializePeer(String id, Integer port) {
 
         // TODO hard coded seed peer config for now, should read from config properties file
-        send(new InitializePeer(Number160.createHash(id), port, null));
+        send(new InitializePeer(Number160.createHash(id), port, null, null));
     }
 }

src/main/java/io/bitsquare/msg/actor/DHTManager.java

@@ -20,6 +20,7 @@ package io.bitsquare.msg.actor;
 import io.bitsquare.msg.actor.command.InitializePeer;
 import io.bitsquare.msg.actor.event.PeerInitialized;
 
+import net.tomp2p.connection.Bindings;
 import net.tomp2p.dht.PeerBuilderDHT;
 import net.tomp2p.dht.PeerDHT;
 import net.tomp2p.nat.PeerBuilderNAT;
@@ -48,6 +49,7 @@ public class DHTManager extends AbstractActor {
         return Props.create(DHTManager.class);
     }
 
+    private Bindings bindings;
     private Peer peer;
     private PeerDHT peerDHT;
     private PeerNAT peerNAT;
@@ -58,7 +60,11 @@ public class DHTManager extends AbstractActor {
                             log.debug("Received message: {}", ip);
 
                             try {
-                                peer = new PeerBuilder(ip.getPeerId()).ports(ip.getPort()).start();
+                                bindings = new Bindings();
+                                if (ip.getInterfaceHint() != null) {
+                                    bindings.addInterface(ip.getInterfaceHint());
+                                }
+                                peer = new PeerBuilder(ip.getPeerId()).ports(ip.getPort()).bindings(bindings).start();
 
                                 peerDHT = new PeerBuilderDHT(peer).start();
                                 peerNAT = new PeerBuilderNAT(peer).start();

src/main/java/io/bitsquare/msg/actor/command/InitializePeer.java

@@ -30,11 +30,15 @@ public class InitializePeer {
 
     private final Number160 peerId;
     private final Integer port;
+    private final String interfaceHint;
+
     private final Collection<PeerAddress> bootstrapPeers;
 
-    public InitializePeer(Number160 peerId, Integer port, Collection<PeerAddress> bootstrapPeers) {
+    public InitializePeer(Number160 peerId, Integer port, String interfaceHint,
+                          Collection<PeerAddress> bootstrapPeers) {
         this.peerId = peerId;
         this.port = port;
+        this.interfaceHint = interfaceHint;
         this.bootstrapPeers = bootstrapPeers;
     }
 
@@ -46,6 +50,10 @@ public class InitializePeer {
         return port;
     }
 
+    public String getInterfaceHint() {
+        return interfaceHint;
+    }
+
     public Collection<PeerAddress> getBootstrapPeers() {
         return bootstrapPeers;
     }

src/main/java/io/bitsquare/util/BitsquareArgumentParser.java

@@ -28,6 +28,7 @@ public class BitsquareArgumentParser {
     public static String SEED_FLAG = "seed";
     public static String PORT_FLAG = "port";
     public static Integer PORT_DEFAULT = 5000;
+    public static String INFHINT_FLAG = "interface";
     public static String NAME_FLAG = "name";
 
     private final ArgumentParser parser;
@@ -42,6 +43,8 @@ public class BitsquareArgumentParser {
         parser.addArgument("-p", "--"+PORT_FLAG)
                 .setDefault(PORT_DEFAULT)
                 .help("IP port to listen on.");
+        parser.addArgument("-i", "--"+INFHINT_FLAG)
+                .help("interface to listen on.");
         parser.addArgument("-n", "--"+NAME_FLAG)
                 .help("Append name to application name.");
     }