1 /*
   2  * Copyright (c) 2002, 2003, 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.corba.se.impl.protocol ;
  27 
  28 import java.util.Iterator ;
  29 
  30 import org.omg.CORBA.SystemException ;
  31 
  32 import com.sun.corba.se.pept.protocol.MessageMediator;
  33 
  34 import com.sun.corba.se.spi.ior.IOR ;
  35 import com.sun.corba.se.spi.ior.ObjectKey ;
  36 import com.sun.corba.se.spi.orb.ORB ;
  37 import com.sun.corba.se.spi.protocol.CorbaServerRequestDispatcher ;
  38 import com.sun.corba.se.spi.protocol.CorbaMessageMediator;
  39 
  40 import com.sun.corba.se.impl.encoding.MarshalInputStream ;
  41 import com.sun.corba.se.impl.encoding.MarshalOutputStream ;
  42 
  43 import com.sun.corba.se.spi.logging.CORBALogDomains ;
  44 
  45 import com.sun.corba.se.impl.logging.ORBUtilSystemException ;
  46 
  47 /**
  48  * Class BootstrapServerRequestDispatcher handles the requests coming to the
  49  * BootstrapServer. It implements Server so that it can be registered
  50  * as a subcontract. It is passed a BootstrapServiceProperties object
  51  * which contains
  52  * the supported ids and their values for the bootstrap service. This
  53  * Properties object is only read from, never written to, and is shared
  54  * among all threads.
  55  * <p>
  56  * The BootstrapServerRequestDispatcher responds primarily to GIOP requests,
  57  * but LocateRequests are also handled for graceful interoperability.
  58  * The BootstrapServerRequestDispatcher handles one request at a time.
  59  */
  60 public class BootstrapServerRequestDispatcher
  61     implements CorbaServerRequestDispatcher
  62 {
  63     private ORB orb;
  64 
  65     ORBUtilSystemException wrapper ;
  66 
  67     private static final boolean debug = false;
  68 
  69     public BootstrapServerRequestDispatcher(ORB orb )
  70     {
  71         this.orb = orb;
  72         this.wrapper = ORBUtilSystemException.get( orb,
  73             CORBALogDomains.RPC_PROTOCOL ) ;
  74     }
  75 
  76     /**
  77      * Dispatch is called by the ORB and will serve get(key) and list()
  78      * invocations on the initial object key.
  79      */
  80     public void dispatch(MessageMediator messageMediator)
  81     {
  82         CorbaMessageMediator request = (CorbaMessageMediator) messageMediator;
  83         CorbaMessageMediator response = null;
  84 
  85         try {
  86             MarshalInputStream is = (MarshalInputStream)
  87                 request.getInputObject();
  88             String method = request.getOperationName();
  89             response = request.getProtocolHandler().createResponse(request, null);
  90             MarshalOutputStream os = (MarshalOutputStream)
  91                 response.getOutputObject();
  92 
  93             if (method.equals("get")) {
  94                 // Get the name of the requested service
  95                 String serviceKey = is.read_string();
  96 
  97                 // Look it up
  98                 org.omg.CORBA.Object serviceObject =
  99                     orb.getLocalResolver().resolve( serviceKey ) ;
 100 
 101                 // Write reply value
 102                 os.write_Object(serviceObject);
 103             } else if (method.equals("list")) {
 104                 java.util.Set keys = orb.getLocalResolver().list() ;
 105                 os.write_long( keys.size() ) ;
 106                 Iterator iter = keys.iterator() ;
 107                 while (iter.hasNext()) {
 108                     String obj = (String)iter.next() ;
 109                     os.write_string( obj ) ;
 110                 }
 111             } else {
 112                 throw wrapper.illegalBootstrapOperation( method ) ;
 113             }
 114 
 115         } catch (org.omg.CORBA.SystemException ex) {
 116             // Marshal the exception thrown
 117             response = request.getProtocolHandler().createSystemExceptionResponse(
 118                 request, ex, null);
 119         } catch (java.lang.RuntimeException ex) {
 120             // Unknown exception
 121             SystemException sysex = wrapper.bootstrapRuntimeException( ex ) ;
 122             response = request.getProtocolHandler().createSystemExceptionResponse(
 123                  request, sysex, null ) ;
 124         } catch (java.lang.Exception ex) {
 125             // Unknown exception
 126             SystemException sysex = wrapper.bootstrapException( ex ) ;
 127             response = request.getProtocolHandler().createSystemExceptionResponse(
 128                  request, sysex, null ) ;
 129         }
 130 
 131         return;
 132     }
 133 
 134     /**
 135      * Locates the object mentioned in the locate requests, and returns
 136      * object here iff the object is the initial object key. A SystemException
 137      * thrown if the object key is not the initial object key.
 138      */
 139     public IOR locate( ObjectKey objectKey) {
 140         return null;
 141     }
 142 
 143     /**
 144      * Not implemented
 145      */
 146     public int getId() {
 147         throw wrapper.genericNoImpl() ;
 148     }
 149 }