1/* 2 * Copyright (c) 2015, Oracle and/or its affiliates. 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/** 25 * Demonstrate Java Remote object storage and retrieval using an LDAP directory. 26 * The RMI object is supplied by a third-party module. 27 */ 28 29package test; 30 31import java.io.*; 32import java.net.*; 33import java.rmi.Remote; 34import java.rmi.server.UnicastRemoteObject; 35import java.util.*; 36import javax.naming.*; 37import javax.naming.directory.*; 38 39import org.example.hello.*; 40 41public class StoreRemote { 42 43 // LDAP capture file 44 private static final String LDAP_CAPTURE_FILE = 45 System.getProperty("test.src") + "/src/test/test/StoreRemote.ldap"; 46 // LDAPServer socket 47 private static ServerSocket serverSocket; 48 49 public static void main(String[] args) throws Exception { 50 51 /* 52 * Process arguments 53 */ 54 55 int argc = args.length; 56 if ((argc < 1) || 57 ((argc == 1) && (args[0].equalsIgnoreCase("-help")))) { 58 59 System.err.println("\nUsage: StoreRemote <ldapurl>\n"); 60 System.err.println(" <ldapurl> is the LDAP URL of the parent entry\n"); 61 System.err.println("example:"); 62 System.err.println(" java StoreRemote ldap://oasis/o=airius.com"); 63 return; 64 } 65 66 /* 67 * Launch the LDAP server with the StoreRemote.ldap capture file 68 */ 69 70 serverSocket = new ServerSocket(0); 71 new Thread(new Runnable() { 72 @Override 73 public void run() { 74 try { 75 new LDAPServer(serverSocket, LDAP_CAPTURE_FILE); 76 } catch (Exception e) { 77 System.out.println("ERROR: unable to launch LDAP server"); 78 e.printStackTrace(); 79 } 80 } 81 }).start(); 82 83 /* 84 * Store a Remote object in the LDAP directory 85 */ 86 87 Hashtable<String,Object> env = new Hashtable<>(); 88 env.put(Context.INITIAL_CONTEXT_FACTORY, 89 "com.sun.jndi.ldap.LdapCtxFactory"); 90 URI ldapUri = new URI(args[0]); 91 if (ldapUri.getPort() == -1) { 92 ldapUri = new URI(ldapUri.getScheme(), null, ldapUri.getHost(), 93 serverSocket.getLocalPort(), ldapUri.getPath(), null, null); 94 } 95 env.put(Context.PROVIDER_URL, ldapUri.toString()); 96 if (args[args.length - 1].equalsIgnoreCase("-trace")) { 97 env.put("com.sun.jndi.ldap.trace.ber", System.out); 98 } 99 100 System.out.println("StoreRemote: connecting to " + ldapUri); 101 DirContext ctx = new InitialDirContext(env); 102 String dn = "cn=myremote"; 103 104 try { 105 Hello hello = new HelloImpl(); 106 ctx.bind(dn, hello); 107 System.out.println("StoreRemote: created entry '" + dn + "'"); 108 109 // Explicitly release the RMI object 110 UnicastRemoteObject.unexportObject(hello, true); 111 112 } catch (NameAlreadyBoundException e) { 113 System.err.println("StoreRemote: entry '" + dn + 114 "' already exists"); 115 cleanup(ctx, (String)null); 116 return; 117 } 118 119 /* 120 * Retrieve the Remote object from the LDAP directory 121 */ 122 123 try { 124 Hello obj = (Hello) ctx.lookup(dn); 125 System.out.println("StoreRemote: retrieved object: " + obj); 126 System.out.println("StoreRemote: calling Hello.sayHello()...\n" + 127 obj.sayHello()); 128 129 // Explicitly release the RMI object 130 UnicastRemoteObject.unexportObject(obj, true); 131 132 } catch (NamingException e) { 133 System.err.println("StoreRemote: error retrieving entry '" + 134 dn + "' " + e); 135 e.printStackTrace(); 136 cleanup(ctx, dn); 137 return; 138 } 139 140 cleanup(ctx, dn); 141 } 142 143 /* 144 * Remove objects from the LDAP directory 145 */ 146 private static void cleanup(DirContext ctx, String... dns) 147 throws NamingException { 148 149 for (String dn : dns) { 150 try { 151 ctx.destroySubcontext(dn); 152 System.out.println("StoreRemote: removed entry '" + dn + "'"); 153 } catch (NamingException e) { 154 System.err.println("StoreRemote: error removing entry '" + dn + 155 "' " + e); 156 } 157 } 158 ctx.close(); 159 } 160} 161