GetORBPropertiesFileAction.java revision 608:7e06bf1dcb09 
1/*
2 * Copyright (c) 1999, 2001, 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/*
27 * (C) Copyright IBM Corp. 1993 - 1997 - All Rights Reserved
28 *
29 * The original version of this source code and documentation is
30 * copyrighted and owned by IBM, Inc. These materials are provided under
31 * terms of a License Agreement between IBM and Sun. This technology is
32 * protected by multiple US and International patents. This notice and
33 * attribution to IBM may not be removed.
34 *
35 */
36
37
38package javax.rmi.CORBA;
39
40import java.io.IOException;
41import java.io.File;
42import java.io.FileInputStream;
43
44import java.security.AccessController;
45import java.security.PrivilegedAction;
46import sun.security.action.GetPropertyAction;
47import java.util.Properties;
48
49class GetORBPropertiesFileAction implements PrivilegedAction {
50    private boolean debug = false ;
51
52    public GetORBPropertiesFileAction () {
53    }
54
55    private String getSystemProperty(final String name) {
56        // This will not throw a SecurityException because this
57        // class was loaded from rt.jar using the bootstrap classloader.
58        String propValue = (String) AccessController.doPrivileged(
59            new PrivilegedAction() {
60                public java.lang.Object run() {
61                    return System.getProperty(name);
62                }
63            }
64        );
65
66        return propValue;
67    }
68
69    private void getPropertiesFromFile( Properties props, String fileName )
70    {
71        try {
72            File file = new File( fileName ) ;
73            if (!file.exists())
74                return ;
75
76            FileInputStream in = new FileInputStream( file ) ;
77
78            try {
79                props.load( in ) ;
80            } finally {
81                in.close() ;
82            }
83        } catch (Exception exc) {
84            if (debug)
85                System.out.println( "ORB properties file " + fileName +
86                    " not found: " + exc) ;
87        }
88    }
89
90    public Object run()
91    {
92        Properties defaults = new Properties() ;
93
94        String javaHome = getSystemProperty( "java.home" ) ;
95        String fileName = javaHome + File.separator + "lib" + File.separator +
96            "orb.properties" ;
97
98        getPropertiesFromFile( defaults, fileName ) ;
99
100        Properties results = new Properties( defaults ) ;
101
102        String userHome = getSystemProperty( "user.home" ) ;
103        fileName = userHome + File.separator + "orb.properties" ;
104
105        getPropertiesFromFile( results, fileName ) ;
106        return results ;
107    }
108}
109