POAPolicyMediatorImpl_NR_USM.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.oa.poa ;
27
28import java.util.Enumeration ;
29
30import org.omg.PortableServer.POA ;
31import org.omg.PortableServer.Servant ;
32import org.omg.PortableServer.ServantManager ;
33import org.omg.PortableServer.ServantLocator ;
34import org.omg.PortableServer.ForwardRequest ;
35import org.omg.PortableServer.POAPackage.NoServant ;
36import org.omg.PortableServer.POAPackage.WrongPolicy ;
37import org.omg.PortableServer.POAPackage.ObjectNotActive ;
38import org.omg.PortableServer.POAPackage.ServantNotActive ;
39import org.omg.PortableServer.POAPackage.ObjectAlreadyActive ;
40import org.omg.PortableServer.POAPackage.ServantAlreadyActive ;
41import org.omg.PortableServer.ServantLocatorPackage.CookieHolder ;
42
43import com.sun.corba.se.impl.orbutil.concurrent.SyncUtil ;
44import com.sun.corba.se.impl.orbutil.ORBUtility ;
45import com.sun.corba.se.impl.orbutil.ORBConstants ;
46
47import com.sun.corba.se.spi.oa.OAInvocationInfo ;
48import com.sun.corba.se.impl.oa.NullServantImpl ;
49
50/** Implementation of POARequesHandler that provides policy specific
51 * operations on the POA.
52 */
53public class POAPolicyMediatorImpl_NR_USM extends POAPolicyMediatorBase {
54    private ServantLocator locator ;
55
56    POAPolicyMediatorImpl_NR_USM( Policies policies, POAImpl poa )
57    {
58        super( policies, poa ) ;
59
60        // assert !policies.retainServants() && policies.useServantManager()
61        if (policies.retainServants())
62            throw poa.invocationWrapper().policyMediatorBadPolicyInFactory() ;
63
64        if (!policies.useServantManager())
65            throw poa.invocationWrapper().policyMediatorBadPolicyInFactory() ;
66
67        locator = null ;
68    }
69
70    protected java.lang.Object internalGetServant( byte[] id,
71        String operation ) throws ForwardRequest
72    {
73        if (locator == null)
74            throw poa.invocationWrapper().poaNoServantManager() ;
75
76        CookieHolder cookieHolder = orb.peekInvocationInfo().getCookieHolder() ;
77
78        // Try - finally is J2EE requirement.
79        java.lang.Object servant;
80        try{
81            poa.unlock() ;
82
83            servant = locator.preinvoke(id, poa, operation, cookieHolder);
84            if (servant == null)
85                servant = new NullServantImpl( poa.omgInvocationWrapper().nullServantReturned() ) ;
86            else
87                setDelegate( (Servant)servant, id);
88        } finally {
89            poa.lock() ;
90        }
91
92        return servant;
93    }
94
95    public void returnServant()
96    {
97        OAInvocationInfo info = orb.peekInvocationInfo();
98        if (locator == null)
99            return;
100
101        try {
102            poa.unlock() ;
103            locator.postinvoke(info.id(), (POA)(info.oa()),
104                info.getOperation(), info.getCookieHolder().value,
105                (Servant)(info.getServantContainer()) );
106        } finally {
107            poa.lock() ;
108        }
109    }
110
111    public void etherealizeAll()
112    {
113        // NO-OP
114    }
115
116    public void clearAOM()
117    {
118        // NO-OP
119    }
120
121    public ServantManager getServantManager() throws WrongPolicy
122    {
123        return locator ;
124    }
125
126    public void setServantManager( ServantManager servantManager ) throws WrongPolicy
127    {
128        if (locator != null)
129            throw poa.invocationWrapper().servantManagerAlreadySet() ;
130
131        if (servantManager instanceof ServantLocator)
132            locator = (ServantLocator)servantManager;
133        else
134            throw poa.invocationWrapper().servantManagerBadType() ;
135    }
136
137    public Servant getDefaultServant() throws NoServant, WrongPolicy
138    {
139        throw new WrongPolicy();
140    }
141
142    public void setDefaultServant( Servant servant ) throws WrongPolicy
143    {
144        throw new WrongPolicy();
145    }
146
147    public final void activateObject(byte[] id, Servant servant)
148        throws WrongPolicy, ServantAlreadyActive, ObjectAlreadyActive
149    {
150        throw new WrongPolicy();
151    }
152
153    public Servant deactivateObject( byte[] id ) throws ObjectNotActive, WrongPolicy
154    {
155        throw new WrongPolicy();
156    }
157
158    public byte[] servantToId( Servant servant ) throws ServantNotActive, WrongPolicy
159    {
160        throw new WrongPolicy();
161    }
162
163    public Servant idToServant( byte[] id )
164        throws WrongPolicy, ObjectNotActive
165    {
166        throw new WrongPolicy();
167    }
168}
169