1 /*
2 * Copyright (c) 1998, 2017, 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 * Licensed Materials - Property of IBM
27 * RMI-IIOP v1.0
28 * Copyright IBM Corp. 1998 1999 All Rights Reserved
29 *
30 */
31
32 package org.omg.CORBA_2_3.portable;
33
34 import java.io.SerializablePermission;
35 import java.security.AccessController;
36 import java.security.PrivilegedAction;
37
38 /**
39 * InputStream provides for the reading of all of the mapped IDL types
40 * from the stream. It extends org.omg.CORBA.portable.InputStream. This
41 * class defines new methods that were added for CORBA 2.3.
42 *
43 * @see org.omg.CORBA.portable.InputStream
44 * @author OMG
45 * @since JDK1.2
46 */
47
48 public abstract class InputStream extends org.omg.CORBA.portable.InputStream {
49
50
51 private static final String ALLOW_SUBCLASS_PROP = "jdk.corba.allowInputStreamSubclass";
52
53 private static final boolean allowSubclass = AccessController.doPrivileged(
54 new PrivilegedAction<Boolean>() {
55 @Override
56 public Boolean run() {
57 String prop = System.getProperty(ALLOW_SUBCLASS_PROP);
58 return prop == null ? false :
59 (prop.equalsIgnoreCase("false") ? false : true);
60 }
61 });
62
63 private static Void checkPermission() {
64 SecurityManager sm = System.getSecurityManager();
65 if (sm != null) {
66 if (!allowSubclass)
67 sm.checkPermission(new
68 SerializablePermission("enableSubclassImplementation"));
69 }
70 return null;
71 }
72
73 private InputStream(Void ignore) { }
74
75 /**
76 * Create a new instance of this class.
77 *
78 * @implNote
79 * Throws SecurityException if SecurityManager is installed and
80 * enableSubclassImplementation SerializablePermission
81 * is not granted or jdk.corba.allowInputStreamSubclass system
82 * property is either not set or is set to 'false'.
83 */
84 public InputStream() {
85 this(checkPermission());
86 }
87
88 /**
89 * Unmarshalls a value type from the input stream.
90 * @return the value type unmarshalled from the input stream
91 */
92 public java.io.Serializable read_value() {
93 throw new org.omg.CORBA.NO_IMPLEMENT();
94 }
95
96 /**
97 * Unmarshalls a value type from the input stream.
98 * @param clz is the declared type of the value to be unmarshalled
99 * @return the value unmarshalled from the input stream
100 */
101 public java.io.Serializable read_value(java.lang.Class clz) {
102 throw new org.omg.CORBA.NO_IMPLEMENT();
103 }
104
105 /**
106 * Unmarshalls a value type from the input stream.
107 * @param factory is the instance fo the helper to be used for
108 * unmarshalling the value type
109 * @return the value unmarshalled from the input stream
110 */
111 public java.io.Serializable read_value(org.omg.CORBA.portable.BoxedValueHelper factory) {
112 throw new org.omg.CORBA.NO_IMPLEMENT();
113 }
114
115 /**
116 * Unmarshalls a value type from the input stream.
117 * @param rep_id identifies the type of the value to be unmarshalled
118 * @return value type unmarshalled from the input stream
119 */
120 public java.io.Serializable read_value(java.lang.String rep_id) {
121 throw new org.omg.CORBA.NO_IMPLEMENT();
122 }
123
124 /**
125 * Unmarshalls a value type from the input stream.
126 * @param value is an uninitialized value which is added to the orb's
127 * indirection table before calling Streamable._read() or
128 * CustomMarshal.unmarshal() to unmarshal the value.
129 * @return value type unmarshalled from the input stream
130 */
131 public java.io.Serializable read_value(java.io.Serializable value) {
132 throw new org.omg.CORBA.NO_IMPLEMENT();
133 }
134
135 /**
136 * Unmarshal the value object or a suitable stub object.
137 * @return ORB runtime returns the value object or a suitable stub object.
138 */
139 public java.lang.Object read_abstract_interface() {
140 throw new org.omg.CORBA.NO_IMPLEMENT();
141 }
142
143 /**
144 * Unmarshal the class object or the stub class corresponding to the passed type.
145 * @param clz is the Class object for the stub class which corresponds to
146 * the type that is statically expected.
147 * @return ORB runtime returns the value object or a suitable stub object.
148 */
149 public java.lang.Object read_abstract_interface(java.lang.Class clz) {
150 throw new org.omg.CORBA.NO_IMPLEMENT();
151 }
152
153 }