1 /*
   2  * Copyright (c) 1999, 2011, 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.url.iiop;
  27 
  28 import javax.naming.*;
  29 import javax.naming.spi.*;
  30 
  31 import java.util.Hashtable;
  32 
  33 import com.sun.jndi.cosnaming.CNCtx;
  34 
  35 /**
  36  * An IIOP URL context factory.
  37  *
  38  * @author Rosanna Lee
  39  */
  40 
  41 public class iiopURLContextFactory implements ObjectFactory {
  42 
  43     public Object getObjectInstance(Object urlInfo, Name name, Context nameCtx,
  44                                     Hashtable<?,?> env) throws Exception {
  45 
  46 //System.out.println("iiopURLContextFactory " + urlInfo);
  47         if (urlInfo == null) {
  48             return new iiopURLContext(env);
  49         }
  50         if (urlInfo instanceof String) {
  51             return getUsingURL((String)urlInfo, env);
  52         } else if (urlInfo instanceof String[]) {
  53             return getUsingURLs((String[])urlInfo, env);
  54         } else {
  55             throw (new IllegalArgumentException(
  56                     "iiopURLContextFactory.getObjectInstance: " +
  57                     "argument must be a URL String or array of URLs"));
  58         }
  59     }
  60 
  61     /**
  62       * Resolves 'name' into a target context with remaining name.
  63       * It only resolves the hostname/port number. The remaining name
  64       * contains the rest of the name found in the URL.
  65       *
  66       * For example, with a iiop URL "iiop://localhost:900/rest/of/name",
  67       * this method resolves "iiop://localhost:900/" to the "NameService"
  68       * context on for the ORB at 'localhost' on port 900,
  69       * and returns as the remaining name "rest/of/name".
  70       */
  71     static ResolveResult getUsingURLIgnoreRest(String url, Hashtable<?,?> env)
  72         throws NamingException {
  73         return CNCtx.createUsingURL(url, env);
  74     }
  75 
  76     private static Object getUsingURL(String url, Hashtable<?,?> env)
  77         throws NamingException {
  78         ResolveResult res = getUsingURLIgnoreRest(url, env);
  79 
  80         Context ctx = (Context)res.getResolvedObj();
  81         try {
  82             return ctx.lookup(res.getRemainingName());
  83         } finally {
  84             ctx.close();
  85         }
  86     }
  87 
  88     private static Object getUsingURLs(String[] urls, Hashtable<?,?> env) {
  89         for (int i = 0; i < urls.length; i++) {
  90             String url = urls[i];
  91             try {
  92                 Object obj = getUsingURL(url, env);
  93                 if (obj != null) {
  94                     return obj;
  95                 }
  96             } catch (NamingException e) {
  97             }
  98         }
  99         return null;    // %%% exception??
 100     }
 101 }