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7d8f4ff955
* java/net/InetSocketAddress.java (InetSocketAddress): Use wildcard address if addr is null. (InetSocketAddress): Dont duplicate implementation. (InetSocketAddress): Throw exception when hostname is null. * java/net/Socket.java: Reworked imports. (Socket): Throw exception when raddr is null, handle case when laddr is null. From-SVN: r68106
189 lines
4.8 KiB
Java
189 lines
4.8 KiB
Java
/* InetSocketAddress.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.net;
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/**
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* InetSocketAddress instances represent socket addresses
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* in the java.nio package. They encapsulate a InetAddress and
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* a port number.
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*
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* @since 1.4
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*/
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public class InetSocketAddress extends SocketAddress
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{
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/**
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* Compatible with JDK 1.4+
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*/
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private static final long serialVersionUID = 5076001401234631237L;
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String hostname;
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InetAddress addr;
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int port;
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/**
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* Constructs an InetSocketAddress instance.
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*
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* @param addr Address of the socket
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* @param port Port if the socket
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*
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* @exception IllegalArgumentException If the port number is illegel
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*/
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public InetSocketAddress(InetAddress addr, int port)
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throws IllegalArgumentException
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{
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if (port < 0 || port > 65535)
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throw new IllegalArgumentException();
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if (addr == null)
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addr = InetAddress.ANY_IF;
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this.addr = addr;
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this.port = port;
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this.hostname = addr.getHostName ();
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}
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/**
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* Constructs an InetSocketAddress instance.
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*
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* @param port Port if the socket
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*
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* @exception IllegalArgumentException If the port number is illegal
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*/
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public InetSocketAddress(int port)
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throws IllegalArgumentException
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{
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this ((InetAddress) null, port);
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}
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/**
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* Constructs an InetSocketAddress instance.
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*
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* @param addr Address of the socket
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* @param port Port if the socket
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*
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* @exception IllegalArgumentException If the port number is illegal
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*/
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public InetSocketAddress(String hostname, int port)
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throws IllegalArgumentException
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{
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if (port < 0 || port > 65535
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|| hostname == null)
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throw new IllegalArgumentException();
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this.port = port;
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this.hostname = hostname;
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try
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{
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this.addr = InetAddress.getByName(hostname);
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}
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catch (Exception e) // UnknownHostException, SecurityException
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{
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this.addr = null;
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}
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}
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/**
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* Test if obj is a <code>InetSocketAddress</code> and
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* has the same address and port
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*/
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public final boolean equals (Object obj)
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{
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// InetSocketAddress objects are equal when addr and port are equal.
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// The hostname may differ.
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if (obj instanceof InetSocketAddress)
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{
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InetSocketAddress a = (InetSocketAddress) obj;
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return addr.equals(a.addr) && a.port == port;
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}
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return false;
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}
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/**
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* Returns the <code>InetAddress</code> or
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* <code>null</code> if its unresolved
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*/
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public final InetAddress getAddress()
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{
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return addr;
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}
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/**
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* Returns <code>hostname</code>
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*/
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public final String getHostName()
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{
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return hostname;
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}
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/**
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* Returns the <code>port</code>
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*/
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public final int getPort()
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{
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return port;
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}
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/**
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* Returns the hashcode of the <code>InetSocketAddress</code>
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*/
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public final int hashCode()
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{
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return port + addr.hashCode();
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}
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/**
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* Checks wether the address has been resolved or not
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*/
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public final boolean isUnresolved()
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{
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return addr == null;
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}
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/**
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* Returns the <code>InetSocketAddress</code> as string
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*/
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public String toString()
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{
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return addr + ":" + port;
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}
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}
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