bes  Updated for version 3.20.10
BESInfoList.cc
1 // BESInfoList.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 #ifdef HAVE_STDLIB_H
36 #include <stdlib.h>
37 #endif
38 
39 #include <mutex>
40 
41 #include "BESInfoList.h"
42 #include "BESInfo.h"
43 #include "TheBESKeys.h"
44 
45 using std::endl;
46 using std::ostream;
47 using std::string;
48 
49 #define BES_DEFAULT_INFO_TYPE "txt"
50 
51 BESInfoList *BESInfoList::d_instance = nullptr;
52 static std::once_flag d_euc_init_once;
53 
54 BESInfoList::~BESInfoList() {}
55 
56 BESInfoList::BESInfoList() {}
57 
58 bool
59 BESInfoList::add_info_builder(const string &info_type,
60  p_info_builder info_builder) {
61 
62  std::lock_guard<std::recursive_mutex> lock_me(d_cache_lock_mutex);
63 
64  BESInfoList::Info_citer i;
65  i = _info_list.find(info_type);
66  if (i == _info_list.end()) {
67  _info_list[info_type] = info_builder;
68  return true;
69  }
70  return false;
71 }
72 
73 bool
74 BESInfoList::rem_info_builder(const string &info_type) {
75 
76  std::lock_guard<std::recursive_mutex> lock_me(d_cache_lock_mutex);
77 
78  BESInfoList::Info_iter i;
79  i = _info_list.find(info_type);
80  if (i != _info_list.end()) {
81  _info_list.erase(i);
82  return true;
83  }
84  return false;
85 }
86 
87 BESInfo *
88 BESInfoList::build_info() {
89 
90  std::lock_guard<std::recursive_mutex> lock_me(d_cache_lock_mutex);
91 
92  string info_type = "";
93  bool found = false;
94  TheBESKeys::TheKeys()->get_value("BES.Info.Type", info_type, found);
95 
96  if (!found || info_type == "")
97  info_type = BES_DEFAULT_INFO_TYPE;
98 
99  BESInfoList::Info_citer i;
100  i = _info_list.find(info_type);
101  if (i != _info_list.end()) {
102  p_info_builder p = (*i).second;
103  if (p) {
104  return p(info_type);
105  }
106  }
107  return 0;
108 }
109 
117 void
118 BESInfoList::dump(ostream &strm) const {
119 
120  std::lock_guard<std::recursive_mutex> lock_me(d_cache_lock_mutex);
121 
122  strm << BESIndent::LMarg << "BESInfoList::dump - ("
123  << (void *) this << ")" << endl;
124  BESIndent::Indent();
125  if (_info_list.size()) {
126  strm << BESIndent::LMarg << "registered builders:" << endl;
127  BESIndent::Indent();
128  BESInfoList::Info_citer i = _info_list.begin();
129  BESInfoList::Info_citer ie = _info_list.end();
130  for (; i != ie; i++) {
131  p_info_builder p = (*i).second;
132  if (p) {
133  BESInfo *info = p("dump");
134  info->dump(strm);
135  delete info;
136  } else {
137  strm << BESIndent::LMarg << "builder is null" << endl;
138  }
139  }
140  BESIndent::UnIndent();
141  } else {
142  strm << BESIndent::LMarg << "registered builders: none" << endl;
143  }
144  BESIndent::UnIndent();
145 }
146 
147 void BESInfoList::initialize_instance() {
148  d_instance = new BESInfoList;
149 #ifdef HAVE_ATEXIT
150  atexit(delete_instance);
151 #endif
152 }
153 
154 void BESInfoList::delete_instance() {
155  delete d_instance;
156  d_instance = 0;
157 }
158 
159 BESInfoList *
160 BESInfoList::TheList() {
161  std::call_once(d_euc_init_once,BESInfoList::initialize_instance);
162  return d_instance;
163 }
virtual void dump(std::ostream &strm) const
dumps information about this object
Definition: BESInfoList.cc:118
informational response object
Definition: BESInfo.h:63
virtual void dump(std::ostream &strm) const
Displays debug information about this object.
Definition: BESInfo.cc:275
void get_value(const std::string &s, std::string &val, bool &found)
Retrieve the value of a given key, if set.
Definition: TheBESKeys.cc:340
static TheBESKeys * TheKeys()
Definition: TheBESKeys.cc:71