Java Local Address Check isLocalAddress(final String addr)

Description

is Local Address

License

Apache License

Declaration

public static boolean isLocalAddress(final String addr) 

Method Source Code

//package com.java2s;
/*//from   w w w . java  2s.  com
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.InetAddress;
import java.net.NetworkInterface;

import java.net.SocketException;

public class Main {
    public static boolean isLocalAddress(final String addr) {
        try {
            return isLocalAddress(InetAddress.getByName(addr));
        } catch (final Exception e) {
            return false;
        }
    }

    public static boolean isLocalAddress(final InetAddress addr) {

        if (addr.isAnyLocalAddress() || addr.isLoopbackAddress()) {
            return true;
        }

        // Check if the address is defined on any interface
        try {
            return NetworkInterface.getByInetAddress(addr) != null;
        } catch (final SocketException e) {
            return false;
        }
    }
}

Related

1. isLocal(String brokerAddress)
2. isLocalAddress(final String address)
3. isLocalAddress(String address)
4. isLocalAddress(String address)
5. isLocalAddress(String address)