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package com.github.ibole.infrastructure.common.utils;

import java.net.ServerSocket;
import java.util.concurrent.TimeUnit;

/*********************************************************************************************
 * .
 * 
 * 
 * 
 * Copyright 2016, iBole Inc. All rights reserved.
 * 
 *********************************************************************************************/


public class PortFactory {
  public static int findFreePort() {
    int port;
    try {
      ServerSocket server = new ServerSocket(0);
      port = server.getLocalPort();
      server.close();
      // allow time for the socket to be released
      TimeUnit.MILLISECONDS.sleep(350);
    } catch (Exception e) {
      throw new RuntimeException("Exception while trying to find a free port", e);
    }
    return port;
  }

  public static void main(String[] args) {
    System.out.print(findFreePort());
  }
}