com.cedarsoftware.util.InetAddressUtilities Maven / Gradle / Ivy
package com.cedarsoftware.util;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* Useful InetAddress Utilities
*
* @author Kenneth Partlow
*
* Copyright (c) Cedar Software 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
*
* License
*
* 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.
*/
public class InetAddressUtilities
{
private InetAddressUtilities() {
super();
}
public static InetAddress getLocalHost() throws UnknownHostException {
return InetAddress.getLocalHost();
}
public static byte[] getIpAddress() {
try
{
return getLocalHost().getAddress();
}
catch (Exception e)
{
System.err.println("Failed to obtain computer's IP address");
return new byte[] {0,0,0,0};
}
}
public static String getHostName()
{
try
{
return getLocalHost().getHostName();
}
catch (Exception e)
{
System.err.println("Unable to fetch 'hostname'");
return "localhost";
}
}
}