Java Long to IP Address longToIp(long i)

Description

long To Ip

License

Open Source License

Declaration

public static String longToIp(long i) 

Method Source Code

//package com.java2s;

public class Main {
    private static final int SLASHNET_VALUE = 32;
    private static final String DOT = ".";
    private static final int X_FF = 0xFF;
    private static final int EIGHT = 8;
    private static final int SIXTEEN = 16;
    private static final int TWENTY_FOUR = 24;
    private static final String SLASH = "/";
    private static final int NUMBER_OF_BITS_IN_IP = 32;

    public static String longToIp(long i) {
        long ipOnly = i & 0xFFFFFFFF;
        long netmask = (long) (i >> NUMBER_OF_BITS_IN_IP);
        StringBuffer result = new StringBuffer();
        result.append((ipOnly >> TWENTY_FOUR) & X_FF);
        result.append(DOT);//from   w w w  .  j av  a  2s. c om
        result.append((ipOnly >> SIXTEEN) & X_FF);
        result.append(DOT);
        result.append((ipOnly >> EIGHT) & X_FF);
        result.append(DOT);
        result.append(ipOnly & X_FF);
        String fullIpAddress = "";
        if (netmask > 0) {
            fullIpAddress = result.toString() + SLASH + slashnetFromAddrs(netmask);
        } else
            fullIpAddress = result.toString();

        return fullIpAddress;
    }

    public static int slashnetFromAddrs(long addrs) {
        return (int) (SLASHNET_VALUE - log2(addrs));
    }

    private static double log2(double d) {
        return Math.log(d) / Math.log(2.0);
    }
}

Related

1. long2IP(long ipLong)
2. long2IP(long proper_address)
3. long2IpAdress(long src)
4. longToIp(long address)
5. longToIp(long i)
6. longToIp(long ip)
7. longToIp(long ip)
8. LongToIp(long longIp)
9. longToIp(long longValue)