| /* |
| * Copyright (c) 1996, 2003, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.rmi.registry; |
| |
| import java.rmi.RemoteException; |
| import java.rmi.server.ObjID; |
| import java.rmi.server.RMIClientSocketFactory; |
| import java.rmi.server.RMIServerSocketFactory; |
| import java.rmi.server.RemoteRef; |
| import java.rmi.server.UnicastRemoteObject; |
| import sun.rmi.registry.RegistryImpl; |
| import sun.rmi.server.UnicastRef2; |
| import sun.rmi.server.UnicastRef; |
| import sun.rmi.server.Util; |
| import sun.rmi.transport.LiveRef; |
| import sun.rmi.transport.tcp.TCPEndpoint; |
| |
| /** |
| * <code>LocateRegistry</code> is used to obtain a reference to a bootstrap |
| * remote object registry on a particular host (including the local host), or |
| * to create a remote object registry that accepts calls on a specific port. |
| * |
| * <p> Note that a <code>getRegistry</code> call does not actually make a |
| * connection to the remote host. It simply creates a local reference to |
| * the remote registry and will succeed even if no registry is running on |
| * the remote host. Therefore, a subsequent method invocation to a remote |
| * registry returned as a result of this method may fail. |
| * |
| * @author Ann Wollrath |
| * @author Peter Jones |
| * @since JDK1.1 |
| * @see java.rmi.registry.Registry |
| */ |
| public final class LocateRegistry { |
| |
| /** |
| * Private constructor to disable public construction. |
| */ |
| private LocateRegistry() {} |
| |
| /** |
| * Returns a reference to the the remote object <code>Registry</code> for |
| * the local host on the default registry port of 1099. |
| * |
| * @return reference (a stub) to the remote object registry |
| * @exception RemoteException if the reference could not be created |
| * @since JDK1.1 |
| */ |
| public static Registry getRegistry() |
| throws RemoteException |
| { |
| return getRegistry(null, Registry.REGISTRY_PORT); |
| } |
| |
| /** |
| * Returns a reference to the the remote object <code>Registry</code> for |
| * the local host on the specified <code>port</code>. |
| * |
| * @param port port on which the registry accepts requests |
| * @return reference (a stub) to the remote object registry |
| * @exception RemoteException if the reference could not be created |
| * @since JDK1.1 |
| */ |
| public static Registry getRegistry(int port) |
| throws RemoteException |
| { |
| return getRegistry(null, port); |
| } |
| |
| /** |
| * Returns a reference to the remote object <code>Registry</code> on the |
| * specified <code>host</code> on the default registry port of 1099. If |
| * <code>host</code> is <code>null</code>, the local host is used. |
| * |
| * @param host host for the remote registry |
| * @return reference (a stub) to the remote object registry |
| * @exception RemoteException if the reference could not be created |
| * @since JDK1.1 |
| */ |
| public static Registry getRegistry(String host) |
| throws RemoteException |
| { |
| return getRegistry(host, Registry.REGISTRY_PORT); |
| } |
| |
| /** |
| * Returns a reference to the remote object <code>Registry</code> on the |
| * specified <code>host</code> and <code>port</code>. If <code>host</code> |
| * is <code>null</code>, the local host is used. |
| * |
| * @param host host for the remote registry |
| * @param port port on which the registry accepts requests |
| * @return reference (a stub) to the remote object registry |
| * @exception RemoteException if the reference could not be created |
| * @since JDK1.1 |
| */ |
| public static Registry getRegistry(String host, int port) |
| throws RemoteException |
| { |
| return getRegistry(host, port, null); |
| } |
| |
| /** |
| * Returns a locally created remote reference to the remote object |
| * <code>Registry</code> on the specified <code>host</code> and |
| * <code>port</code>. Communication with this remote registry will |
| * use the supplied <code>RMIClientSocketFactory</code> <code>csf</code> |
| * to create <code>Socket</code> connections to the registry on the |
| * remote <code>host</code> and <code>port</code>. |
| * |
| * @param host host for the remote registry |
| * @param port port on which the registry accepts requests |
| * @param csf client-side <code>Socket</code> factory used to |
| * make connections to the registry. If <code>csf</code> |
| * is null, then the default client-side <code>Socket</code> |
| * factory will be used in the registry stub. |
| * @return reference (a stub) to the remote registry |
| * @exception RemoteException if the reference could not be created |
| * @since 1.2 |
| */ |
| public static Registry getRegistry(String host, int port, |
| RMIClientSocketFactory csf) |
| throws RemoteException |
| { |
| Registry registry = null; |
| |
| if (port <= 0) |
| port = Registry.REGISTRY_PORT; |
| |
| if (host == null || host.length() == 0) { |
| // If host is blank (as returned by "file:" URL in 1.0.2 used in |
| // java.rmi.Naming), try to convert to real local host name so |
| // that the RegistryImpl's checkAccess will not fail. |
| try { |
| host = java.net.InetAddress.getLocalHost().getHostAddress(); |
| } catch (Exception e) { |
| // If that failed, at least try "" (localhost) anyway... |
| host = ""; |
| } |
| } |
| |
| /* |
| * Create a proxy for the registry with the given host, port, and |
| * client socket factory. If the supplied client socket factory is |
| * null, then the ref type is a UnicastRef, otherwise the ref type |
| * is a UnicastRef2. If the property |
| * java.rmi.server.ignoreStubClasses is true, then the proxy |
| * returned is an instance of a dynamic proxy class that implements |
| * the Registry interface; otherwise the proxy returned is an |
| * instance of the pregenerated stub class for RegistryImpl. |
| **/ |
| LiveRef liveRef = |
| new LiveRef(new ObjID(ObjID.REGISTRY_ID), |
| new TCPEndpoint(host, port, csf, null), |
| false); |
| RemoteRef ref = |
| (csf == null) ? new UnicastRef(liveRef) : new UnicastRef2(liveRef); |
| |
| return (Registry) Util.createProxy(RegistryImpl.class, ref, false); |
| } |
| |
| /** |
| * Creates and exports a <code>Registry</code> instance on the local |
| * host that accepts requests on the specified <code>port</code>. |
| * |
| * <p>The <code>Registry</code> instance is exported as if the static |
| * {@link UnicastRemoteObject#exportObject(Remote,int) |
| * UnicastRemoteObject.exportObject} method is invoked, passing the |
| * <code>Registry</code> instance and the specified <code>port</code> as |
| * arguments, except that the <code>Registry</code> instance is |
| * exported with a well-known object identifier, an {@link ObjID} |
| * instance constructed with the value {@link ObjID#REGISTRY_ID}. |
| * |
| * @param port the port on which the registry accepts requests |
| * @return the registry |
| * @exception RemoteException if the registry could not be exported |
| * @since JDK1.1 |
| **/ |
| public static Registry createRegistry(int port) throws RemoteException { |
| return new RegistryImpl(port); |
| } |
| |
| /** |
| * Creates and exports a <code>Registry</code> instance on the local |
| * host that uses custom socket factories for communication with that |
| * instance. The registry that is created listens for incoming |
| * requests on the given <code>port</code> using a |
| * <code>ServerSocket</code> created from the supplied |
| * <code>RMIServerSocketFactory</code>. |
| * |
| * <p>The <code>Registry</code> instance is exported as if |
| * the static {@link |
| * UnicastRemoteObject#exportObject(Remote,int,RMIClientSocketFactory,RMIServerSocketFactory) |
| * UnicastRemoteObject.exportObject} method is invoked, passing the |
| * <code>Registry</code> instance, the specified <code>port</code>, the |
| * specified <code>RMIClientSocketFactory</code>, and the specified |
| * <code>RMIServerSocketFactory</code> as arguments, except that the |
| * <code>Registry</code> instance is exported with a well-known object |
| * identifier, an {@link ObjID} instance constructed with the value |
| * {@link ObjID#REGISTRY_ID}. |
| * |
| * @param port port on which the registry accepts requests |
| * @param csf client-side <code>Socket</code> factory used to |
| * make connections to the registry |
| * @param ssf server-side <code>ServerSocket</code> factory |
| * used to accept connections to the registry |
| * @return the registry |
| * @exception RemoteException if the registry could not be exported |
| * @since 1.2 |
| **/ |
| public static Registry createRegistry(int port, |
| RMIClientSocketFactory csf, |
| RMIServerSocketFactory ssf) |
| throws RemoteException |
| { |
| return new RegistryImpl(port, csf, ssf); |
| } |
| } |
