InternalHostname.java

/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
 * (c) 2001 - 2013 OpenPlans
 * This code is licensed under the GPL 2.0 license, available at the root
 * application directory.
 */
package org.geoserver.monitor;

import java.net.InetAddress;
import java.net.UnknownHostException;

public class InternalHostname {

    static String internalHostname;
    
    public static final String get() {
        if (internalHostname == null) {
            synchronized(InternalHostname.class) {
                if (internalHostname == null) {
                    InetAddress addr;
                    try {
                        addr = InetAddress.getLocalHost();
                        internalHostname = addr.getHostName();
                    } 
                    catch (UnknownHostException e) {
                        internalHostname = "unknown";
                    }
                }
            }
        }
        return internalHostname;
    }
}