OPeNDAP Hyrax Back End Server (BES)  Updated for version 3.8.3
TheBESKeys.cc
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1 // TheBESKeys.cc
2 
3 // This file is part of bes, A C++ back-end server implementation framework
4 // for the OPeNDAP Data Access Protocol.
5 
6 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research
7 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
8 //
9 // This library is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU Lesser General Public
11 // License as published by the Free Software Foundation; either
12 // version 2.1 of the License, or (at your option) any later version.
13 //
14 // This library is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // Lesser General Public License for more details.
18 //
19 // You should have received a copy of the GNU Lesser General Public
20 // License along with this library; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 //
23 // You can contact University Corporation for Atmospheric Research at
24 // 3080 Center Green Drive, Boulder, CO 80301
25 
26 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
27 // Please read the full copyright statement in the file COPYRIGHT_UCAR.
28 //
29 // Authors:
30 // pwest Patrick West <pwest@ucar.edu>
31 // jgarcia Jose Garcia <jgarcia@ucar.edu>
32 
33 #include "config.h"
34 
35 #include <sys/stat.h>
36 #include <cstdlib>
37 
38 #include "TheBESKeys.h"
39 #include "BESInternalFatalError.h"
40 
41 // left in for now... It would be better to not use an env var
42 // since these are easily hacked. jhrg 10/12/11
43 // Removed 8/28/13 jhrg #define BES_CONF getenv("BES_CONF")
44 
45 BESKeys *TheBESKeys::_instance = 0;
46 string TheBESKeys::ConfigFile = "";
47 
49 {
50  if (_instance == 0) {
51  string use_ini = TheBESKeys::ConfigFile;
52  if (use_ini == "") {
53 #ifdef BES_CONF
54  char *ini_file = BES_CONF;
55  if (!ini_file) {
56 #endif
57  string try_ini = "/usr/local/etc/bes/bes.conf";
58  struct stat buf;
59  int statret = stat(try_ini.c_str(), &buf);
60  if (statret == -1 || !S_ISREG( buf.st_mode )) {
61  try_ini = "/etc/bes/bes.conf";
62  int statret = stat(try_ini.c_str(), &buf);
63  if (statret == -1 || !S_ISREG( buf.st_mode )) {
64  try_ini = "/usr/etc/bes/bes.conf";
65  int statret = stat(try_ini.c_str(), &buf);
66  if (statret == -1 || !S_ISREG( buf.st_mode )) {
67  string s = "Unable to find a conf file or module version mismatch.";
68 #if 0
69  // This message is confusing because it often appears when
70  // the user has passed -c to besctl. It makes the command
71  // (besctl) more confusing to use. jhrg 10/12/11
72  "Unable to locate BES config file. " + "Please either pass -c "
73  + "option when starting the BES, set " + "the environment variable BES_CONF, "
74  + "or install in /usr/local/etc/bes/bes.conf " + "or /etc/bes/bes.conf.";
75 #endif
76  throw BESInternalFatalError(s, __FILE__, __LINE__);
77  }
78  else {
79  use_ini = try_ini;
80  }
81  }
82  else {
83  use_ini = try_ini;
84  }
85  }
86  else {
87  use_ini = try_ini;
88  }
89 #ifdef BES_CONF
90  }
91  else {
92  use_ini = ini_file;
93  }
94 #endif
95  }
96  _instance = new TheBESKeys(use_ini);
97  }
98  return _instance;
99 }
100 
101 #if 0
102 // I think adding this was a mistake because the bes really needs to restart
103 // to have it's configuration updated - either that or this code must get
104 // much more complex - e.g., reload all modules (not just their configuration
105 // files). jhrg 5/27/11
106 void TheBESKeys::updateKeys()
107 {
108  delete _instance; _instance = 0;
109  _instance = new TheBESKeys(TheBESKeys::ConfigFile);
110 }
111 
112 void TheBESKeys::updateKeys( const string &keys_file_name )
113 {
114  delete _instance; _instance = 0;
116  _instance = new TheBESKeys(keys_file_name);
117 }
118 #endif
exception thrown if an internal error is found and is fatal to the BES
TheBESKeys(const string &keys_file_name)
Definition: TheBESKeys.h:43
mapping of key/value pairs defining different behaviors of an application.
Definition: BESKeys.h:84
string keys_file_name()
Definition: BESKeys.h:113
static BESKeys * TheKeys()
Definition: TheBESKeys.cc:48
static string ConfigFile
Definition: TheBESKeys.h:50