1 /*
2 * Copyright (c) 1996, 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.naming.cosnaming;
27
28 // Get CORBA type
29 import org.omg.CORBA.INITIALIZE;
30 import org.omg.CORBA.ORB;
31 import org.omg.CORBA.CompletionStatus;
32
33 import org.omg.CORBA.Policy;
34 import org.omg.CORBA.INTERNAL;
35 import org.omg.PortableServer.POA;
36 import org.omg.PortableServer.LifespanPolicyValue;
37 import org.omg.PortableServer.RequestProcessingPolicyValue;
38 import org.omg.PortableServer.IdAssignmentPolicyValue;
39 import org.omg.PortableServer.ServantRetentionPolicyValue;
40
41 // Get org.omg.CosNaming types
42 import org.omg.CosNaming.NamingContext;
43
44 // Import transient naming context
45 import com.sun.corba.se.impl.naming.cosnaming.TransientNamingContext;
46 import com.sun.corba.se.impl.orbutil.ORBConstants;
47
48 import com.sun.corba.se.spi.logging.CORBALogDomains;
49
50 import com.sun.corba.se.impl.logging.NamingSystemException;
51
52 /**
53 * Class TransientNameService implements a transient name service
54 * using TransientNamingContexts and TransientBindingIterators, which
55 * implement the org.omg.CosNaming::NamingContext and org.omg.CosNaming::BindingIterator
56 * interfaces specfied by the OMG Common Object Services Specification.
57 * <p>
58 * The TransientNameService creates the initial NamingContext object.
59 * @see NamingContextImpl
60 * @see BindingIteratorImpl
61 * @see TransientNamingContext
62 * @see TransientBindingIterator
63 */
64 public class TransientNameService
65 {
66 /**
67 * Constructs a new TransientNameService, and creates an initial
68 * NamingContext, whose object
69 * reference can be obtained by the initialNamingContext method.
70 * @param orb The ORB object
71 * @exception org.omg.CORBA.INITIALIZE Thrown if
72 * the TransientNameService cannot initialize.
73 */
74 public TransientNameService(com.sun.corba.se.spi.orb.ORB orb )
75 throws org.omg.CORBA.INITIALIZE
76 {
77 // Default constructor uses "NameService" as the key for the Root Naming
78 // Context. If default constructor is used then INS's object key for
79 // Transient Name Service is "NameService"
80 initialize( orb, "NameService" );
81 }
82
83 /**
84 * Constructs a new TransientNameService, and creates an initial
85 * NamingContext, whose object
86 * reference can be obtained by the initialNamingContext method.
87 * @param orb The ORB object
88 * @param nameserviceName Stringified key used for INS Service registry
89 * @exception org.omg.CORBA.INITIALIZE Thrown if
90 * the TransientNameService cannot initialize.
91 */
92 public TransientNameService(com.sun.corba.se.spi.orb.ORB orb,
93 String serviceName ) throws org.omg.CORBA.INITIALIZE
94 {
95 // This constructor gives the flexibility of providing the Object Key
96 // for the Root Naming Context that is registered with INS.
97 initialize( orb, serviceName );
98 }
99
100
101 /**
102 * This method initializes Transient Name Service by associating Root
103 * context with POA and registering the root context with INS Object Keymap.
104 */
105 private void initialize( com.sun.corba.se.spi.orb.ORB orb,
106 String nameServiceName )
107 throws org.omg.CORBA.INITIALIZE
108 {
109 NamingSystemException wrapper = NamingSystemException.get( orb,
110 CORBALogDomains.NAMING ) ;
111
112 try {
113 POA rootPOA = (POA) orb.resolve_initial_references(
114 ORBConstants.ROOT_POA_NAME );
115 rootPOA.the_POAManager().activate();
116
117 int i = 0;
118 Policy[] poaPolicy = new Policy[3];
119 poaPolicy[i++] = rootPOA.create_lifespan_policy(
120 LifespanPolicyValue.TRANSIENT);
121 poaPolicy[i++] = rootPOA.create_id_assignment_policy(
122 IdAssignmentPolicyValue.SYSTEM_ID);
123 poaPolicy[i++] = rootPOA.create_servant_retention_policy(
124 ServantRetentionPolicyValue.RETAIN);
125
126 POA nsPOA = rootPOA.create_POA( "TNameService", null, poaPolicy );
127 nsPOA.the_POAManager().activate();
128
129 // Create an initial context
130 TransientNamingContext initialContext =
131 new TransientNamingContext(orb, null, nsPOA);
132 byte[] rootContextId = nsPOA.activate_object( initialContext );
133 initialContext.localRoot =
134 nsPOA.id_to_reference( rootContextId );
135 theInitialNamingContext = initialContext.localRoot;
136 orb.register_initial_reference( nameServiceName,
137 theInitialNamingContext );
138 } catch (org.omg.CORBA.SystemException e) {
139 throw wrapper.transNsCannotCreateInitialNcSys( e ) ;
140 } catch (Exception e) {
141 throw wrapper.transNsCannotCreateInitialNc( e ) ;
142 }
143 }
144
145
146 /**
147 * Return the initial NamingContext.
148 * @return the object reference for the initial NamingContext.
149 */
150 public org.omg.CORBA.Object initialNamingContext()
151 {
152 return theInitialNamingContext;
153 }
154
155
156 // The initial naming context for this name service
157 private org.omg.CORBA.Object theInitialNamingContext;
158 }