bes  Updated for version 3.20.6
BESResponseHandlerList.cc
1 // BESResponseHandlerList.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 "BESResponseHandlerList.h"
34 
35 using std::endl;
36 using std::ostream;
37 using std::string;
38 
39 BESResponseHandlerList *BESResponseHandlerList::_instance = 0;
40 
55 bool BESResponseHandlerList::add_handler(const string &handler_name, p_response_handler handler_method)
56 {
57  BESResponseHandlerList::Handler_citer i = _handler_list.find(handler_name);
58  if (i == _handler_list.end()) {
59  _handler_list[handler_name] = handler_method;
60  return true;
61  }
62  return false;
63 }
64 
74 bool BESResponseHandlerList::remove_handler(const string &handler_name)
75 {
76  BESResponseHandlerList::Handler_iter i = _handler_list.find(handler_name);
77  if (i != _handler_list.end()) {
78  _handler_list.erase(i);
79  return true;
80  }
81  return false;
82 }
83 
97 BESResponseHandlerList::find_handler(const string &handler_name)
98 {
99  BESResponseHandlerList::Handler_citer i = _handler_list.find(handler_name);
100  if (i != _handler_list.end()) {
101  p_response_handler p = (*i).second;
102  if (p) {
103  return p(handler_name);
104  }
105  }
106  return 0;
107 }
108 
117 {
118  string ret = "";
119  bool first_name = true;
120  BESResponseHandlerList::Handler_citer i = _handler_list.begin();
121  for (; i != _handler_list.end(); i++) {
122  if (!first_name) ret += ", ";
123  ret += (*i).first;
124  first_name = false;
125  }
126  return ret;
127 }
128 
136 void BESResponseHandlerList::dump(ostream &strm) const
137 {
138  strm << BESIndent::LMarg << "BESResponseHandlerList::dump - (" << (void *) this << ")" << endl;
139  BESIndent::Indent();
140  if (_handler_list.size()) {
141  strm << BESIndent::LMarg << "registered response handlers:" << endl;
142  BESIndent::Indent();
143  BESResponseHandlerList::Handler_citer i = _handler_list.begin();
144  BESResponseHandlerList::Handler_citer ie = _handler_list.end();
145  for (; i != ie; i++) {
146  strm << BESIndent::LMarg << (*i).first << endl;
147  }
148  BESIndent::UnIndent();
149  }
150  else {
151  strm << BESIndent::LMarg << "registered response handlers: none" << endl;
152  }
153  BESIndent::UnIndent();
154 }
155 
157 BESResponseHandlerList::TheList()
158 {
159  if (_instance == 0) {
160  _instance = new BESResponseHandlerList;
161  }
162  return _instance;
163 }
164 
BESResponseHandlerList
List of all registered response handlers for this server.
Definition: BESResponseHandlerList.h:59
BESResponseHandlerList::dump
virtual void dump(std::ostream &strm) const
dumps information about this object
Definition: BESResponseHandlerList.cc:136
BESResponseHandlerList::remove_handler
virtual bool remove_handler(const std::string &handler)
removes a response handler from the list
Definition: BESResponseHandlerList.cc:74
BESResponseHandlerList::find_handler
virtual BESResponseHandler * find_handler(const std::string &handler)
returns the response handler with the given name from the list
Definition: BESResponseHandlerList.cc:97
BESResponseHandler
handler object that knows how to create a specific response object
Definition: BESResponseHandler.h:77
BESResponseHandlerList::get_handler_names
virtual std::string get_handler_names()
returns the comma separated list of all response handlers currently registered with this server.
Definition: BESResponseHandlerList.cc:116
BESResponseHandlerList::add_handler
virtual bool add_handler(const std::string &handler, p_response_handler handler_method)
add a response handler to the list
Definition: BESResponseHandlerList.cc:55