Java Network Interface Get isActive(String niName)

Description

This method invoke the isUp for currently associated NetworkInterface

License

Apache License

Parameter

Parameter	Description
niName	a parameter

Exception

Parameter	Description
IOException	an exception

Return

true if active

Declaration

public static boolean isActive(String niName) throws IOException 

Method Source Code

//package com.java2s;
/*/*from  w ww  . ja v  a 2  s.  c o m*/
 * Copyright (c) 2012-2017 ZoxWeb.com LLC.
 *
 * 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.io.IOException;

import java.net.NetworkInterface;

public class Main {
    /**
     * This method invoke the isUp for currently associated NetworkInterface
     * @param niName 
     * @return true if active
     * @throws IOException
     */
    public static boolean isActive(String niName) throws IOException {
        NetworkInterface ni = toNI(niName);
        if (ni != null) {
            return ni.isUp();
        }

        return false;
    }

    /**
     * This method invoke the isUp for currently associated NetworkInterface
     * @param ni 
     * @return true if active
     * @throws IOException
     */
    public static boolean isActive(NetworkInterface ni) throws IOException {

        if (ni != null) {
            return ni.isUp();
        }

        return false;
    }

    /**
     * Convert the property to a network interface
     * @param niName 
     * @return network interface
     * @throws IOException if the network interface do not exist
     */
    public static NetworkInterface toNI(String niName) throws IOException {
        return NetworkInterface.getByName(niName);
    }

    /**
     * Convert the property to a network interface
     * @param ni 
     * @return network interface 
     * @throws IOException if the network interface do not exist
     */
    public static NetworkInterface toNI(NetworkInterface ni) throws IOException {
        return NetworkInterface.getByName(ni.getName());
    }
}

Related

1. getNIOMulticastMethod()
2. getNonLoopbackLocalAdresses()
3. getNonLoopbackNetworkInterface()
4. getPublicInterface()
5. getUsualNetworkInterfaces()
6. isNixMashPC()
7. parseInterfaceList(String s)
8. pingFromInterface(String name)
9. print(Collection objs)