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.oa.poa ;
27
28 import java.util.Enumeration ;
29
30 import org.omg.PortableServer.POA ;
31 import org.omg.PortableServer.Servant ;
32 import org.omg.PortableServer.ServantManager ;
33 import org.omg.PortableServer.ServantLocator ;
34 import org.omg.PortableServer.ForwardRequest ;
35 import org.omg.PortableServer.POAPackage.NoServant ;
36 import org.omg.PortableServer.POAPackage.WrongPolicy ;
37 import org.omg.PortableServer.POAPackage.ObjectNotActive ;
38 import org.omg.PortableServer.POAPackage.ServantNotActive ;
39 import org.omg.PortableServer.POAPackage.ObjectAlreadyActive ;
40 import org.omg.PortableServer.POAPackage.ServantAlreadyActive ;
41 import org.omg.PortableServer.ServantLocatorPackage.CookieHolder ;
42
43 import com.sun.corba.se.impl.orbutil.concurrent.SyncUtil ;
44 import com.sun.corba.se.impl.orbutil.ORBUtility ;
45 import com.sun.corba.se.impl.orbutil.ORBConstants ;
46
47 import com.sun.corba.se.spi.oa.OAInvocationInfo ;
48 import com.sun.corba.se.impl.oa.NullServantImpl ;
49
50 /** Implementation of POARequesHandler that provides policy specific
51 * operations on the POA.
52 */
53 public 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 }