Caldavsync Sources: src/net/fortuna/ical4j/util/InetAddressHostInfo.java@fb9019fb1bf7

Import initial revisions of existing project AndroidCaldavSyncAdapater,
forked from upstream repository at 27e8a0f8495c92e0780d450bdf0c7cec77a03a55.

     1 /**

     2  * Copyright (c) 2012, Ben Fortuna

     3  * All rights reserved.

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  *

     9  *  o Redistributions of source code must retain the above copyright

    10  * notice, this list of conditions and the following disclaimer.

    11  *

    12  *  o Redistributions in binary form must reproduce the above copyright

    13  * notice, this list of conditions and the following disclaimer in the

    14  * documentation and/or other materials provided with the distribution.

    15  *

    16  *  o Neither the name of Ben Fortuna nor the names of any other contributors

    17  * may be used to endorse or promote products derived from this software

    18  * without specific prior written permission.

    19  *

    20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    31  */

    32 package net.fortuna.ical4j.util;

    34 import java.net.InetAddress;

    35 import java.net.NetworkInterface;

    36 import java.net.SocketException;

    37 import java.util.Enumeration;

    39 /**

    40  * @author fortuna

    41  *

    42  */

    43 public class InetAddressHostInfo implements HostInfo {

    45     private final InetAddress hostAddress;

    47     /**

    48      * @throws SocketException where an error occurs identifying the host address

    49      */

    50     public InetAddressHostInfo() throws SocketException {

    51         this(findNonLoopbackAddress());

    52     }

    54     /**

    55      * @param address a host address

    56      */

    57     public InetAddressHostInfo(InetAddress address) {

    58         this.hostAddress = address;

    59     }

    61     /**

    62      * {@inheritDoc}

    63      */

    64     public String getHostName() {

    65         return hostAddress.getHostName();

    66     }

    68     /**

    69      * Find a non loopback address for this machine on which to start the server.

    70      * @return a non loopback address

    71      * @throws SocketException if a socket error occurs

    72      */

    73     private static InetAddress findNonLoopbackAddress() throws SocketException {

    74         final Enumeration enumInterfaceAddress = NetworkInterface.getNetworkInterfaces();

    75         while (enumInterfaceAddress.hasMoreElements()) {

    76             final NetworkInterface netIf = (NetworkInterface) enumInterfaceAddress.nextElement();

    78             // Iterate over inet address

    79             final Enumeration enumInetAdress = netIf.getInetAddresses();

    80             while (enumInetAdress.hasMoreElements()) {

    81                 final InetAddress address = (InetAddress) enumInetAdress.nextElement();

    82                 if (!address.isLoopbackAddress()) {

    83                     return address;

    84                 }

    85             }

    86         }

    87         return null;

    88     }

    90 }

Caldavsync Sources / file revision