Parses the string and returns a InetSocketAddress. - Java Network

Java examples for Network:Network Address

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Description

Parses the string and returns a InetSocketAddress.

Demo Code

/*/*from  ww  w .  j av  a  2s  .c o  m*/
 *           GNU GENERAL PUBLIC LICENSE
 *              Version 2, June 1991
 * 
 *            
 * 
 *          ADDITIONAL REQUIREMENT
 *          
 * 1. If PeerfactSim.KOM is used for the evaluation in research publications, 
 * the following should be referenced: 
 * 
 * @techreport{   PWLS07,
 *    author = {Konstantin Pussep and Matthias Weinert and Nicolas Liebau and Ralf Steinmetz},
 *    title = {Flexible Framework for NAT Traversal in Peer-to-Peer Applications},
 *    month = {Nov},
 *    year = {2007},
 *    institution = {KOM - Multimedia Communications Lab, Technische Universit{\"a}t Darmstadt},
 *    address = {Merckstra{\ss}e 25, 64283 Darmstadt, Germany},
 *    number = {KOM-TR-2007-06},
 * }
 */
//package com.java2s;

import java.net.InetSocketAddress;

public class Main {
    public static void main(String[] argv) throws Exception {
        String addrString = "java2s.com";
        System.out.println(parseSocketAddress(addrString));
    }

    /**
     * Parses the string and returns a <tt>InetSocketAddress</tt>. Address must have the format
     * <tt>hostname:port</tt>.
     * 
     * @param addrString a string of a hostname and port
     * @return corresponding InetSocketAddress
     */
    public static InetSocketAddress parseSocketAddress(String addrString) {
        return parseSocketAddress(addrString, -1);
    }

    /**
     * Parses the string and returns a <tt>InetSocketAddress</tt>. Address can have the format
     * <tt>hostname:port</tt> or only <tt>hostname</tt>, then the <tt>defaultPort</tt> is used.
     * 
     * @param addrString a string of a hostname and port
     * @return corresponding InetSocketAddress
     */
    public static InetSocketAddress parseSocketAddress(String addrString,
            int defaultPort) {
        try {
            String div[] = addrString.split(":");
            String hostname = div[0];
            int port = defaultPort;
            if (div.length > 1)
                port = Integer.valueOf(div[1]);
            return new InetSocketAddress(hostname, port);
        } catch (Exception e) {
            return null;
        }
    }
}

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