Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    public static int nextAvailablePort(int start) {
        while (!portAvailable(start)) {
            start++;
        }
        return start;
    }

    /**
     * Checks to see if a specific port is available.
     * 
     * @Author From apache Mina project
     * 
     * @param port
     *            the port to check for availability
     */
    public static boolean portAvailable(final int port) {
        if (port < 1 || port > 30000) {
            throw new IllegalArgumentException("Invalid start port: " + port);
        }

        java.net.ServerSocket ss = null;
        java.net.DatagramSocket ds = null;
        try {
            ss = new java.net.ServerSocket(port);
            ss.setReuseAddress(true);
            ds = new java.net.DatagramSocket(port);
            ds.setReuseAddress(true);
            return true;
        } catch (final java.io.IOException e) {
        } finally {
            if (ds != null) {
                ds.close();
            }

            if (ss != null) {
                try {
                    ss.close();
                } catch (final java.io.IOException e) {
                    /* should not be thrown */
                }
            }
        }

        return false;
    }
}