Mercurial > hg > openjdk6.drops
view jdk/src/share/classes/sun/management/jmxremote/LocalRMIServerSocketFactory.java @ 12:7c56bb8ffc4b jdk6-b11
Import b11
author | Mark Wielaard <mark@klomp.org> |
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date | Thu, 10 Jul 2008 00:00:00 +0200 |
parents | |
children | 7ac0004726ad |
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/* * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Sun designates this * particular file as subject to the "Classpath" exception as provided * by Sun in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. */ package sun.management.jmxremote; import java.io.IOException; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.ServerSocket; import java.net.Socket; import java.net.SocketException; import java.rmi.server.RMIServerSocketFactory; import java.util.Enumeration; /** * This RMI server socket factory creates server sockets that * will only accept connection requests from clients running * on the host where the RMI remote objects have been exported. */ public final class LocalRMIServerSocketFactory implements RMIServerSocketFactory { /** * Creates a server socket that only accepts connection requests from * clients running on the host where the RMI remote objects have been * exported. */ public ServerSocket createServerSocket(int port) throws IOException { return new ServerSocket(port) { @Override public Socket accept() throws IOException { Socket socket = super.accept(); InetAddress remoteAddr = socket.getInetAddress(); final String msg = "The server sockets created using the " + "LocalRMIServerSocketFactory only accept connections " + "from clients running on the host where the RMI " + "remote objects have been exported."; // Retrieve all the network interfaces on this host. Enumeration<NetworkInterface> nis; try { nis = NetworkInterface.getNetworkInterfaces(); } catch (SocketException e) { try { socket.close(); } catch (IOException ioe) { // Ignore... } throw new IOException(msg, e); } // Walk through the network interfaces to see // if any of them matches the client's address. // If true, then the client's address is local. while (nis.hasMoreElements()) { NetworkInterface ni = nis.nextElement(); Enumeration<InetAddress> addrs = ni.getInetAddresses(); while (addrs.hasMoreElements()) { InetAddress localAddr = addrs.nextElement(); if (localAddr.equals(remoteAddr)) { return socket; } } } // The client's address is remote so refuse the connection. try { socket.close(); } catch (IOException ioe) { // Ignore... } throw new IOException(msg); } }; } /** * Two LocalRMIServerSocketFactory objects * are equal if they are of the same type. */ @Override public boolean equals(Object obj) { return (obj instanceof LocalRMIServerSocketFactory); } /** * Returns a hash code value for this LocalRMIServerSocketFactory. */ @Override public int hashCode() { return getClass().hashCode(); } }