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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  
38  package javax.rmi.CORBA;
39  
40  import java.io.IOException;
41  import java.io.File;
42  import java.io.FileInputStream;
43  
44  import java.security.AccessController;
45  import java.security.PrivilegedAction;
46  import sun.security.action.GetPropertyAction;
47  import java.util.Properties;
48  
49  class 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 }