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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 #define BES_CONF getenv("BES_CONF")
42 
43 BESKeys *TheBESKeys::_instance = 0;
44 string TheBESKeys::ConfigFile = "";
45 
47 {
48  if (_instance == 0) {
49  string use_ini = TheBESKeys::ConfigFile;
50  if (use_ini == "") {
51  char *ini_file = BES_CONF;
52  if (!ini_file)
53  {
54  string try_ini = "/usr/local/etc/bes/bes.conf" ;
55  struct stat buf;
56  int statret = stat( try_ini.c_str(), &buf ) ;
57  if ( statret == -1 || !S_ISREG( buf.st_mode ) )
58  {
59  try_ini = "/etc/bes/bes.conf" ;
60  int statret = stat( try_ini.c_str(), &buf ) ;
61  if ( statret == -1 || !S_ISREG( buf.st_mode ) )
62  {
63  try_ini = "/usr/etc/bes/bes.conf" ;
64  int statret = stat( try_ini.c_str(), &buf ) ;
65  if ( statret == -1 || !S_ISREG( buf.st_mode ) )
66  {
67  string s = (string)"Unable to locate BES config file. "
68  + "Please either pass -c "
69  + "option when starting the BES, set "
70  + "the environment variable BES_CONF, "
71  + "or install in /usr/local/etc/bes/bes.conf "
72  + "or /etc/bes/bes.conf." ;
73  throw BESInternalFatalError(s, __FILE__, __LINE__);
74  }
75  else
76  {
77  use_ini = try_ini ;
78  }
79  }
80  else
81  {
82  use_ini = try_ini ;
83  }
84  }
85  else
86  {
87  use_ini = try_ini ;
88  }
89  } else {
90  use_ini = ini_file;
91  }
92  }
93  _instance = new TheBESKeys(use_ini);
94  }
95  return _instance;
96 }
97 
exception thrown if an internal error is found and is fatal to the BES
TheBESKeys(const string &keys_file_name)
Definition: TheBESKeys.h:43
#define BES_CONF
Definition: TheBESKeys.cc:41
mapping of key/value pairs defining different behaviors of an application.
Definition: BESKeys.h:84
static BESKeys * TheKeys()
Definition: TheBESKeys.cc:46
static string ConfigFile
Definition: TheBESKeys.h:45