From ea1a6ab2144921a880d3d347a95c43aa415a5d10 Mon Sep 17 00:00:00 2001
From: David Gageot <david@gageot.net>
Date: Mon, 14 Sep 2015 08:51:30 +0200
Subject: [PATCH] Stop using random ports. It causes FP

The same port can be given twice before the processes
are started.
On Travis, we know all those ports are free. We still
check with nc, just to be sure.
---
 .../sonar/orchestrator/util/NetworkUtils.java | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 it/it-tests/src/test/java/com/sonar/orchestrator/util/NetworkUtils.java

diff --git a/it/it-tests/src/test/java/com/sonar/orchestrator/util/NetworkUtils.java b/it/it-tests/src/test/java/com/sonar/orchestrator/util/NetworkUtils.java
new file mode 100644
index 00000000000..9274dab3483
--- /dev/null
+++ b/it/it-tests/src/test/java/com/sonar/orchestrator/util/NetworkUtils.java
@@ -0,0 +1,63 @@
+/*
+ * Orchestrator
+ * Copyright (C) 2011 SonarSource
+ * sonarqube@googlegroups.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
+ */
+package com.sonar.orchestrator.util;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public final class NetworkUtils {
+  private static final AtomicInteger nextPort = new AtomicInteger(20000);
+
+  private NetworkUtils() {
+  }
+
+  public static int getNextAvailablePort() {
+    System.out.println("=== Override method provided by orchestrator");
+
+    if ("true".equals(System.getenv("TRAVIS"))) {
+      for (int i = 0; i < 10; i++) {
+        int port = nextPort.getAndIncrement();
+
+        try {
+          System.out.println("=== Trying port " + port);
+          Process process = new ProcessBuilder("nc", "-z", "localhost", Integer.toString(port)).start();
+          if (process.waitFor() == 1) {
+            System.out.println("=== Using port " + port);
+            return port;
+          }
+        } catch (Exception e) {
+          // Ignore. will try again
+          System.out.println(e);
+        }
+      }
+
+      throw new IllegalStateException("Can't find a free network port");
+    }
+
+    try (ServerSocket socket = new ServerSocket()) {
+      socket.bind(new InetSocketAddress("localhost", 0));
+      return socket.getLocalPort();
+    } catch (IOException e) {
+      throw new IllegalStateException("Can't find a free network port", e);
+    }
+  }
+}
-- 
2.39.5