J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2004 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.jndi.cosnaming; |
| 27 | |
| 28 | import javax.naming.*; |
| 29 | import javax.naming.spi.StateFactory; |
| 30 | import java.util.Hashtable; |
| 31 | |
| 32 | import org.omg.CORBA.ORB; |
| 33 | |
| 34 | import java.rmi.Remote; |
| 35 | import java.rmi.server.ExportException; |
| 36 | |
| 37 | import com.sun.jndi.toolkit.corba.CorbaUtils; // for RMI-IIOP |
| 38 | |
| 39 | /** |
| 40 | * StateFactory that turns java.rmi.Remote objects to org.omg.CORBA.Object. |
| 41 | * |
| 42 | * @author Rosanna Lee |
| 43 | */ |
| 44 | |
| 45 | public class RemoteToCorba implements StateFactory { |
| 46 | public RemoteToCorba() { |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Returns the CORBA object for a Remote object. |
| 51 | * If input is not a Remote object, or if Remote object uses JRMP, return null. |
| 52 | * If the RMI-IIOP library is not available, throw ConfigurationException. |
| 53 | * |
| 54 | * @param orig The object to turn into a CORBA object. If not Remote, |
| 55 | * or if is a JRMP stub or impl, return null. |
| 56 | * @param name Ignored |
| 57 | * @param ctx The non-null CNCtx whose ORB to use. |
| 58 | * @param env Ignored |
| 59 | * @return The CORBA object for <tt>orig</tt> or null. |
| 60 | * @exception ConfigurationException If the CORBA object cannot be obtained |
| 61 | * due to configuration problems, for instance, if RMI-IIOP not available. |
| 62 | * @exception NamingException If some other problem prevented a CORBA |
| 63 | * object from being obtained from the Remote object. |
| 64 | */ |
| 65 | public Object getStateToBind(Object orig, Name name, Context ctx, |
| 66 | Hashtable<?,?> env) throws NamingException { |
| 67 | if (orig instanceof org.omg.CORBA.Object) { |
| 68 | // Already a CORBA object, just use it |
| 69 | return null; |
| 70 | } |
| 71 | |
| 72 | if (orig instanceof Remote) { |
| 73 | // Turn remote object into org.omg.CORBA.Object |
| 74 | try { |
| 75 | // Returns null if JRMP; let next factory try |
| 76 | // CNCtx will eventually throw IllegalArgumentException if |
| 77 | // no CORBA object gotten |
| 78 | return |
| 79 | CorbaUtils.remoteToCorba((Remote)orig, ((CNCtx)ctx)._orb); |
| 80 | } catch (ClassNotFoundException e) { |
| 81 | // RMI-IIOP library not available |
| 82 | throw new ConfigurationException( |
| 83 | "javax.rmi packages not available"); |
| 84 | } |
| 85 | } |
| 86 | return null; // pass and let next state factory try |
| 87 | } |
| 88 | } |