Java Socket Address Get getInetSocketAddress(String addressPortStr, int defaultPort)

License

Parameter

Exception

Return

Declaration

public static InetSocketAddress getInetSocketAddress(String addressPortStr, int defaultPort)
        throws UnknownHostException 

Method Source Code

//package com.java2s;
/*/*www. j av  a  2  s .  c  om*/
 * Copyright Ericsson AB 2011-2014. All Rights Reserved.
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 * The contents of this file are subject to the Lesser GNU Public License,
 *  (the "License"), either version 2.1 of the License, or
 * (at your option) any later version.; you may not use this file except in
 * compliance with the License. You should have received a copy of the
 * License along with this software. If not, it can be
 * retrieved online at https://www.gnu.org/licenses/lgpl.html. Moreover
 * it could also be requested from Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
 * WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
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import java.net.InetSocketAddress;

import java.net.UnknownHostException;

public class Main {
    /**
     * Get an InetSocketAddress from the String format "<Address>:<Port>", or
     * "<Address>".
     *
     * @param addressPortStr String for Address and Port. Enclose with "[" and
     * "]" for IPv6 addresses.
     * @param defaultPort defaultPort when port is not specified in
     * addressPortStr
     * @return InetSocketAddress
     * @throws UnknownHostException
     */
    public static InetSocketAddress getInetSocketAddress(String addressPortStr, int defaultPort)
            throws UnknownHostException {
        if (addressPortStr == null || addressPortStr.isEmpty()) {
            return null;
        }
        String addressStr;
        int port;
        if (addressPortStr.charAt(0) == '[') {
            // [2001:1::1]:1234 or [2001:1::1]
            int i = addressPortStr.indexOf(']');
            if (i <= 0) {
                return null;
            }
            addressStr = addressPortStr.substring(1, i);
            if (addressPortStr.length() > i + 2 && addressPortStr.charAt(i + 1) == ':') {
                // [2001:1::1]:1234
                port = Integer.parseInt(addressPortStr.substring(i + 2));
            } else if (addressPortStr.length() == i + 1) {
                // [2001:1::1] (is it legitimate??)
                port = defaultPort;
            } else {
                return null;
            }
        } else if (addressPortStr.contains(":")) {
            int i = addressPortStr.lastIndexOf(':');
            if (addressPortStr.indexOf(':') == i) {
                // www.fqdn.com:1234 or 192.168.1.1:1234
                addressStr = addressPortStr.substring(0, i);
                port = Integer.parseInt(addressPortStr.substring(i + 1));
            } else {
                // IPv6 Address 2001:1::1 (at least including two ':')
                addressStr = addressPortStr;
                port = defaultPort;
            }
        } else {
            // www.fqdn.com or 192.168.1.1
            addressStr = addressPortStr;
            port = defaultPort;
        }
        if (addressStr == null || port < 0) {
            return null;
        }
        return new InetSocketAddress(addressStr, port);
    }
}

Related

1. getHostString(InetSocketAddress socketAddress)
2. getHostString(InetSocketAddress socketAddress)
3. getHostStringFromInetSocketAddress(InetSocketAddress addr)
4. getHostStringWithoutNameLookup( InetSocketAddress inetSocketAddress)
5. getInetSocketAddress(long addrAsInt32, int port)
6. getInetSocketAddress(String arg)
7. getInetSocketAddress(String endpoint)
8. getInetSocketAddress(String endpointURI, int defaultPort)
9. getInetSocketAddress(String s, String mainHost)