Java Network Interface Get getInterface(String ifaceName)

Description

get Interface

License

Open Source License

Declaration

public static NetworkInterface getInterface(String ifaceName) throws SocketException 

Method Source Code

//package com.java2s;
/** /*  w ww.j  a  v  a  2 s .  c o m*/
 * (C) Copyright 2009 Hal Hildebrand, All Rights Reserved
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *     
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 */

import java.net.NetworkInterface;

import java.net.SocketException;

public class Main {
    public static NetworkInterface getInterface(String ifaceName) throws SocketException {
        if (ifaceName == null) {
            NetworkInterface iface = NetworkInterface.getByIndex(1);
            if (iface == null) {
                throw new IllegalArgumentException(
                        "Supplied ANY address for endpoint: %s with no networkInterface defined, cannot find network interface 1 ");
            }
            return iface;
        } else {
            NetworkInterface iface = NetworkInterface.getByName(ifaceName);
            if (iface == null) {
                throw new IllegalArgumentException(String.format("Cannot find network interface: %s ", ifaceName));
            }
            return iface;
        }
    }
}

Related

1. getFreeTunnelInterface()
2. getGlobalI()
3. getGlobalInterfaces()
4. getGoodNetworkInterfaces()
5. getHostnameFromNetworkInterface()
6. getInterfaceByName(String interfaceName)
7. getInterfaceDiagnostic()
8. getInterfaceInfo(NetworkInterface nif)
9. getInterfaces()