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 org.omg.CORBA.BAD_OPERATION ;
  29 import org.omg.CORBA.INTERNAL ;
  30 import org.omg.CORBA.SystemException ;
  31 import org.omg.CORBA.CompletionStatus ;
  32 
  33 import com.sun.corba.se.spi.protocol.LocalClientRequestDispatcher;
  34 import com.sun.corba.se.spi.protocol.ForwardException;
  35 
  36 // XXX This should be in the SPI
  37 import com.sun.corba.se.impl.protocol.LocalClientRequestDispatcherBase;
  38 
  39 import com.sun.corba.se.spi.oa.OAInvocationInfo;
  40 import com.sun.corba.se.spi.oa.ObjectAdapter;
  41 import com.sun.corba.se.spi.oa.OADestroyed;
  42 
  43 import com.sun.corba.se.spi.orb.ORB;
  44 
  45 import com.sun.corba.se.spi.ior.IOR ;
  46 
  47 import com.sun.corba.se.spi.logging.CORBALogDomains ;
  48 
  49 import com.sun.corba.se.impl.logging.POASystemException;
  50 
  51 public abstract class ServantCacheLocalCRDBase extends LocalClientRequestDispatcherBase
  52 {
  53 
  54     private OAInvocationInfo cachedInfo ;
  55     protected POASystemException wrapper ;
  56 
  57     protected ServantCacheLocalCRDBase( ORB orb, int scid, IOR ior )
  58     {
  59         super( orb, scid, ior ) ;
  60         wrapper = POASystemException.get( orb,
  61             CORBALogDomains.RPC_PROTOCOL ) ;
  62     }
  63 
  64     protected synchronized OAInvocationInfo getCachedInfo()
  65     {
  66         if (!servantIsLocal)
  67             throw wrapper.servantMustBeLocal() ;
  68 
  69         if (cachedInfo == null) {
  70             ObjectAdapter oa = oaf.find( oaid ) ;
  71             cachedInfo = oa.makeInvocationInfo( objectId ) ;
  72 
  73             // InvocationInfo must be pushed before calling getInvocationServant
  74             orb.pushInvocationInfo( cachedInfo ) ;
  75 
  76             try {
  77                 oa.enter( );
  78                 oa.getInvocationServant( cachedInfo ) ;
  79             } catch (ForwardException freq) {
  80                 throw wrapper.illegalForwardRequest( freq ) ;
  81             } catch( OADestroyed oades ) {
  82                 // This is an error since no user of this implementation
  83                 // should ever throw this exception
  84                 throw wrapper.adapterDestroyed( oades ) ;
  85             } finally {
  86                 oa.returnServant( );
  87                 oa.exit( );
  88                 orb.popInvocationInfo() ;
  89             }
  90         }
  91 
  92         return cachedInfo ;
  93     }
  94 }
  95 
  96 // End of File