/*
* Copyright (C) 2005 Luca Veltri - University of Parma - Italy
*
* This file is part of MjSip (http://www.mjsip.org)
*
* MjSip is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MjSip is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MjSip; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author(s):
* Luca Veltri (luca.veltri@unipr.it)
*/
package org.zoolu.net;
import java.net.InetAddress;
/** IpAddress is an IP address.
*/
public class IpAddress
{
/** The host address/name */
String address;
/** The InetAddress */
InetAddress inet_address;
// ********************* Protected *********************
/** Creates an IpAddress */
public IpAddress(InetAddress iaddress)
{ init(null,iaddress);
}
/** Inits the IpAddress */
private void init(String address, InetAddress iaddress)
{ this.address=address;
this.inet_address=iaddress;
}
/** Gets the InetAddress */
public InetAddress getInetAddress()
{ if (inet_address==null) try { inet_address=InetAddress.getByName(address); } catch (java.net.UnknownHostException e) {}
return inet_address;
}
// ********************** Public ***********************
/** Creates an IpAddress */
public IpAddress(String address)
{ init(address,null);
}
/** Creates an IpAddress */
public IpAddress(IpAddress ipaddr)
{ init(ipaddr.address,ipaddr.inet_address);
}
/** Gets the host address */
/*public String getAddress()
{ if (address==null) address=inet_address.getHostAddress();
return address;
}*/
/** Makes a copy */
public Object clone()
{ return new IpAddress(this);
}
/** Wthether it is equal to Object <i>obj</i> */
public boolean equals(Object obj)
{ try
{ IpAddress ipaddr=(IpAddress)obj;
if (!toString().equals(ipaddr.toString())) return false;
return true;
}
catch (Exception e) { return false; }
}
/** Gets a String representation of the Object */
public String toString()
{ if (address==null && inet_address!=null) address=inet_address.getHostAddress();
return address;
}
// *********************** Static ***********************
/** Gets the IpAddress for a given fully-qualified host name. */
public static IpAddress getByName(String host_addr) throws java.net.UnknownHostException
{ InetAddress iaddr=InetAddress.getByName(host_addr);
return new IpAddress(iaddr);
}
/** Detects the default IP address of this host. */
public static IpAddress getLocalHostAddress()
{ try
{ return new IpAddress(java.net.InetAddress.getLocalHost());
}
catch (java.net.UnknownHostException e)
{ return new IpAddress("127.0.0.1");
}
}
}