Java InetAddress to InetAddressToInt(InetAddress ip)

Description

Convert ip to an integer

License

Apache License

Parameter

Parameter	Description
ip	InetAddress to convert

Return

Integer

Declaration

public static int InetAddressToInt(InetAddress ip) 

Method Source Code

//package com.java2s;
/**//from  w w  w .j  a  va2s  .  c  om
 * Copyright 2009-2011 ?cole de technologie sup?rieure,
 * Communication Research Centre Canada,
 * Inocybe Technologies Inc. and 6837247 CANADA Inc.
 *
 * 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.InetAddress;

public class Main {
    /** Convert ip to an integer
     * @param ip InetAddress to convert
     * @return Integer
     */
    public static int InetAddressToInt(InetAddress ip) {
        if (ip == null)
            return -1;
        byte[] adr = ip.getAddress();

        int[] i = new int[4];
        for (int j = 0; j < 4; j++) {
            i[j] = (int) ((adr[j] < 0) ? (256 + adr[j]) : adr[j]);
        }
        return i[3] + (i[2] << 8) + (i[1] << 16) + (i[0] << 24);
    }
}

Related

1. addressToLong(InetAddress address)
2. inetAddress2Int(InetAddress addr)
3. inetAddressToThriftBinary(InetAddress inetAddress)
4. ipv4AddressToInt(InetAddress addr)
5. str(InetAddress address)
6. toAddressString(InetAddress ip)