is Local URI - Java Network

Java examples for Network:URL

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Description

is Local URI

Demo Code

/*//from   www  . ja  v  a2s .c o  m
 *    Copyright 2013 University of Southern California
 *
 *  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.
 */
//package com.java2s;
import java.io.*;
import java.net.*;

public class Main {
    public static boolean isLocalURI(URI uri) throws IOException {
        if (uri == null || uri.isOpaque() || !uri.isAbsolute()
                || uri.getHost() == null) {
            throw new IllegalArgumentException();
        }

        InetAddress host = InetAddress.getByName(uri.getHost());
        return host.isLoopbackAddress() || host.isAnyLocalAddress()
                || NetworkInterface.getByInetAddress(host) != null;
    }
}

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