From 22338a8d4d99e166aeaaf4d5299473995b1a70b4 Mon Sep 17 00:00:00 2001
From: Manfred Karrer <mk@nucleo.io>
Date: Sun, 5 Apr 2015 16:30:19 +0200
Subject: [PATCH] Make regtest default, use random node ports

---
 .../java/io/bitsquare/btc/BitcoinNetwork.java |  2 +-
 core/src/main/java/io/bitsquare/p2p/Node.java | 24 ++++++++++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/io/bitsquare/btc/BitcoinNetwork.java b/core/src/main/java/io/bitsquare/btc/BitcoinNetwork.java
index 152d01db6e..b3f6d7261b 100644
--- a/core/src/main/java/io/bitsquare/btc/BitcoinNetwork.java
+++ b/core/src/main/java/io/bitsquare/btc/BitcoinNetwork.java
@@ -29,7 +29,7 @@ public enum BitcoinNetwork {
     REGTEST(RegTestParams.get());
 
     public static final String KEY = "bitcoin.network";
-    public static final BitcoinNetwork DEFAULT = TESTNET;
+    public static final BitcoinNetwork DEFAULT = REGTEST;
 
     private final NetworkParameters parameters;
 
diff --git a/core/src/main/java/io/bitsquare/p2p/Node.java b/core/src/main/java/io/bitsquare/p2p/Node.java
index 53b6fc7164..c4fafd9560 100644
--- a/core/src/main/java/io/bitsquare/p2p/Node.java
+++ b/core/src/main/java/io/bitsquare/p2p/Node.java
@@ -19,7 +19,16 @@ package io.bitsquare.p2p;
 
 import com.google.common.base.Objects;
 
+import java.io.IOException;
+
+import java.net.ServerSocket;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public final class Node {
+    private static final Logger log = LoggerFactory.getLogger(Node.class);
+
     public static final String NAME_KEY = "node.name";
     public static final String PORT_KEY = "node.port";
 
@@ -28,7 +37,7 @@ public final class Node {
      * href="https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?&page=103">
      * currently unassigned by IANA</a> (7366-7390).
      */
-    public static final int DEFAULT_PORT = 7366;
+    public static int DEFAULT_PORT = findFreeSystemPort();
 
     private final String name;
     private final String ip;
@@ -71,6 +80,19 @@ public final class Node {
         return Node.at(this.name, this.ip, newPort);
     }
 
+    private static int findFreeSystemPort() {
+        int port = 7366;
+        try {
+            ServerSocket server = new ServerSocket(0);
+            port = server.getLocalPort();
+            server.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return port;
+    }
+
     @Override
     public boolean equals(Object object) {
         if (this == object)