ServantCacheLocalCRDBase.java revision 608:7e06bf1dcb09 
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
26package com.sun.corba.se.impl.protocol;
27
28import org.omg.CORBA.BAD_OPERATION ;
29import org.omg.CORBA.INTERNAL ;
30import org.omg.CORBA.SystemException ;
31import org.omg.CORBA.CompletionStatus ;
32
33import com.sun.corba.se.spi.protocol.LocalClientRequestDispatcher;
34import com.sun.corba.se.spi.protocol.ForwardException;
35
36// XXX This should be in the SPI
37import com.sun.corba.se.impl.protocol.LocalClientRequestDispatcherBase;
38
39import com.sun.corba.se.spi.oa.OAInvocationInfo;
40import com.sun.corba.se.spi.oa.ObjectAdapter;
41import com.sun.corba.se.spi.oa.OADestroyed;
42
43import com.sun.corba.se.spi.orb.ORB;
44
45import com.sun.corba.se.spi.ior.IOR ;
46
47import com.sun.corba.se.spi.logging.CORBALogDomains ;
48
49import com.sun.corba.se.impl.logging.POASystemException;
50
51public 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
97