1 /*
   2  * Copyright (c) 2000, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.jndi.cosnaming;
  27 
  28 import javax.naming.Name;
  29 import javax.naming.NamingException;
  30 
  31 import java.net.MalformedURLException;
  32 import com.sun.jndi.toolkit.url.UrlUtil;
  33 
  34 /**
  35  * Extract components of a "corbaname" URL.
  36  *
  37  * The format of an corbaname URL is defined in INS 99-12-03 as follows.
  38  * <pre>{@code
  39  * corbaname url = "corbaname:" <corbaloc_obj> ["#" <string_name>]
  40  * corbaloc_obj  = <obj_addr_list> ["/" <key_string>]
  41  * obj_addr_list = as defined in a corbaloc URL
  42  * key_string    = as defined in a corbaloc URL
  43  * string_name   = stringified COS name | empty_string
  44  * }</pre>
  45  * Characters in {@code <string_name>} are escaped as follows.
  46  * US-ASCII alphanumeric characters are not escaped. Any characters outside
  47  * of this range are escaped except for the following:
  48  * <pre>{@code
  49  *        ; / : ? @ & = + $ , - _ . ! ~ * ; ( )
  50  * }</pre>
  51  * Escaped characters is escaped by using a % followed by its 2 hexadecimal
  52  * numbers representing the octet.
  53  * <p>
  54  * The corbaname URL is parsed into two parts: a corbaloc URL and a COS name.
  55  * The corbaloc URL is constructed by concatenation {@code "corbaloc:"} with
  56  * {@code <corbaloc_obj>}.
  57  * The COS name is {@code <string_name>} with the escaped characters resolved.
  58  * <p>
  59  * A corbaname URL is resolved by:
  60  * <ol>
  61  * <li>Construct a corbaloc URL by concatenating {@code "corbaloc:"} and {@code <corbaloc_obj>}.
  62  * <li>Resolve the corbaloc URL to a NamingContext by using
  63  * <pre>{@code
  64  *     nctx = ORB.string_to_object(corbalocUrl);
  65  * }</pre>
  66  * <li>Resolve {@code <string_name>} in the NamingContext.
  67  * </ol>
  68  *
  69  * @author Rosanna Lee
  70  */
  71 
  72 public final class CorbanameUrl {
  73     private String stringName;
  74     private String location;
  75 
  76     /**
  77      * Returns a possibly empty but non-null string that is the "string_name"
  78      * portion of the URL.
  79      */
  80     public String getStringName() {
  81         return stringName;
  82     }
  83 
  84     public Name getCosName() throws NamingException {
  85         return CNCtx.parser.parse(stringName);
  86     }
  87 
  88     public String getLocation() {
  89         return "corbaloc:" + location;
  90     }
  91 
  92     public CorbanameUrl(String url) throws MalformedURLException {
  93 
  94         if (!url.startsWith("corbaname:")) {
  95             throw new MalformedURLException("Invalid corbaname URL: " + url);
  96         }
  97 
  98         int addrStart = 10;  // "corbaname:"
  99 
 100         int addrEnd = url.indexOf('#', addrStart);
 101         if (addrEnd < 0) {
 102             addrEnd = url.length();
 103             stringName = "";
 104         } else {
 105             stringName = UrlUtil.decode(url.substring(addrEnd+1));
 106         }
 107         location = url.substring(addrStart, addrEnd);
 108 
 109         int keyStart = location.indexOf('/');
 110         if (keyStart >= 0) {
 111             // Has key string
 112             if (keyStart == (location.length() -1)) {
 113                 location += "NameService";
 114             }
 115         } else {
 116             location += "/NameService";
 117         }
 118     }
 119 /*
 120     // for testing only
 121     public static void main(String[] args) {
 122         try {
 123             CorbanameUrl url = new CorbanameUrl(args[0]);
 124 
 125             System.out.println("location: " + url.getLocation());
 126             System.out.println("string name: " + url.getStringName());
 127         } catch (MalformedURLException e) {
 128             e.printStackTrace();
 129         }
 130     }
 131 */
 132 }
--- EOF ---