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.url.rmi; |
| 27 | |
| 28 | import java.util.Hashtable; |
| 29 | import java.rmi.registry.LocateRegistry; |
| 30 | |
| 31 | import javax.naming.*; |
| 32 | import javax.naming.spi.ResolveResult; |
| 33 | import com.sun.jndi.toolkit.url.GenericURLContext; |
| 34 | import com.sun.jndi.rmi.registry.RegistryContext; |
| 35 | |
| 36 | |
| 37 | /** |
| 38 | * An RMI URL context resolves names that are URLs of the form |
| 39 | * <pre> |
| 40 | * rmi://[host][:port][/[object]] |
| 41 | * or |
| 42 | * rmi:[/][object] |
| 43 | * </pre> |
| 44 | * If an object is specified, the URL resolves to the named object. |
| 45 | * Otherwise, the URL resolves to the specified RMI registry. |
| 46 | * |
| 47 | * @author Scott Seligman |
| 48 | */ |
| 49 | public class rmiURLContext extends GenericURLContext { |
| 50 | |
| 51 | public rmiURLContext(Hashtable env) { |
| 52 | super(env); |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Resolves the registry portion of "url" to the corresponding |
| 57 | * RMI registry, and returns the atomic object name as the |
| 58 | * remaining name. |
| 59 | */ |
| 60 | protected ResolveResult getRootURLContext(String url, Hashtable env) |
| 61 | throws NamingException |
| 62 | { |
| 63 | if (!url.startsWith("rmi:")) { |
| 64 | throw (new IllegalArgumentException( |
| 65 | "rmiURLContext: name is not an RMI URL: " + url)); |
| 66 | } |
| 67 | |
| 68 | // Parse the URL. |
| 69 | |
| 70 | String host = null; |
| 71 | int port = -1; |
| 72 | String objName = null; |
| 73 | |
| 74 | int i = 4; // index into url, following the "rmi:" |
| 75 | |
| 76 | if (url.startsWith("//", i)) { // parse "//host:port" |
| 77 | i += 2; // skip past "//" |
| 78 | int slash = url.indexOf('/', i); |
| 79 | if (slash < 0) { |
| 80 | slash = url.length(); |
| 81 | } |
| 82 | if (url.startsWith("[", i)) { // at IPv6 literal |
| 83 | int brac = url.indexOf(']', i + 1); |
| 84 | if (brac < 0 || brac > slash) { |
| 85 | throw new IllegalArgumentException( |
| 86 | "rmiURLContext: name is an Invalid URL: " + url); |
| 87 | } |
| 88 | host = url.substring(i, brac + 1); // include brackets |
| 89 | i = brac + 1; // skip past "[...]" |
| 90 | } else { // at host name or IPv4 |
| 91 | int colon = url.indexOf(':', i); |
| 92 | int hostEnd = (colon < 0 || colon > slash) |
| 93 | ? slash |
| 94 | : colon; |
| 95 | if (i < hostEnd) { |
| 96 | host = url.substring(i, hostEnd); |
| 97 | } |
| 98 | i = hostEnd; // skip past host |
| 99 | } |
| 100 | if ((i + 1 < slash)) { |
| 101 | if ( url.startsWith(":", i)) { // parse port |
| 102 | i++; // skip past ":" |
| 103 | port = Integer.parseInt(url.substring(i, slash)); |
| 104 | } else { |
| 105 | throw new IllegalArgumentException( |
| 106 | "rmiURLContext: name is an Invalid URL: " + url); |
| 107 | } |
| 108 | } |
| 109 | i = slash; |
| 110 | } |
| 111 | if ("".equals(host)) { |
| 112 | host = null; |
| 113 | } |
| 114 | if (url.startsWith("/", i)) { // skip "/" before object name |
| 115 | i++; |
| 116 | } |
| 117 | if (i < url.length()) { |
| 118 | objName = url.substring(i); |
| 119 | } |
| 120 | |
| 121 | // Represent object name as empty or single-component composite name. |
| 122 | CompositeName remaining = new CompositeName(); |
| 123 | if (objName != null) { |
| 124 | remaining.add(objName); |
| 125 | } |
| 126 | |
| 127 | // Debug |
| 128 | //System.out.println("host=" + host + " port=" + port + |
| 129 | // " objName=" + remaining.toString() + "\n"); |
| 130 | |
| 131 | // Create a registry context. |
| 132 | Context regCtx = new RegistryContext(host, port, env); |
| 133 | |
| 134 | return (new ResolveResult(regCtx, remaining)); |
| 135 | } |
| 136 | } |