bes  Updated for version 3.20.6
BESDapRequestHandler.cc
1 // BESDapRequestHandler.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 <util.h>
34 
35 using namespace libdap ;
36 
37 #include "BESDapRequestHandler.h"
38 #include "BESResponseHandler.h"
39 #include "BESDapNames.h"
40 #include "BESResponseNames.h"
41 #include "BESVersionInfo.h"
42 
43 BESDapRequestHandler::BESDapRequestHandler( const string &name )
44  : BESRequestHandler( name )
45 {
46  add_method( HELP_RESPONSE, BESDapRequestHandler::dap_build_help ) ;
47  add_method( VERS_RESPONSE, BESDapRequestHandler::dap_build_version ) ;
48 }
49 
50 BESDapRequestHandler::~BESDapRequestHandler()
51 {
52 }
53 
54 bool
55 BESDapRequestHandler::dap_build_help( BESDataHandlerInterface &dhi )
56 {
57  BESResponseObject *response = dhi.response_handler->get_response_object() ;
58  BESInfo *info = dynamic_cast < BESInfo * >(response) ;
59  if( !info )
60  throw BESInternalError( "cast error", __FILE__, __LINE__ ) ;
61 
62  map<string,string> attrs ;
63  attrs["name"] = libdap_name() ;
64  attrs["version"] = libdap_version() ;
65  info->begin_tag( "module", &attrs ) ;
66  info->add_data_from_file( "DAP.Help", "DAP Help" ) ;
67  info->end_tag( "module" ) ;
68 
69  return true ;
70 }
71 
72 bool
73 BESDapRequestHandler::dap_build_version( BESDataHandlerInterface &dhi )
74 {
75  BESResponseObject *response = dhi.response_handler->get_response_object() ;
76  BESVersionInfo *info = dynamic_cast < BESVersionInfo * >(response) ;
77  if( !info )
78  throw BESInternalError( "cast error", __FILE__, __LINE__ ) ;
79 
80  info->add_library( libdap_name(), libdap_version() ) ;
81  list<string> versions ;
82  versions.push_back( "2.0" ) ;
83  versions.push_back( "3.0" ) ;
84  versions.push_back( "3.2" ) ;
85  info->add_service( OPENDAP_SERVICE, versions ) ;
86 
87  return true ;
88 }
89 
96 void
97 BESDapRequestHandler::dump( ostream &strm ) const
98 {
99  strm << BESIndent::LMarg << "BESDapRequestHandler::dump - ("
100  << (void *)this << ")" << endl ;
101  BESIndent::Indent() ;
102  BESRequestHandler::dump( strm ) ;
103  BESIndent::UnIndent() ;
104 }
105 
BESRequestHandler
Represents a specific data type request handler.
Definition: BESRequestHandler.h:74
BESDapRequestHandler::dump
virtual void dump(std::ostream &strm) const
dumps information about this object
Definition: BESDapRequestHandler.cc:97
BESInfo
informational response object
Definition: BESInfo.h:63
libdap
Definition: BESDapFunctionResponseCache.h:35
BESInfo::add_data_from_file
virtual void add_data_from_file(const std::string &key, const std::string &name)
add data from a file to the informational object.
Definition: BESInfo.cc:182
BESResponseHandler::get_response_object
virtual BESResponseObject * get_response_object()
return the current response object
Definition: BESResponseHandler.cc:82
BESVersionInfo
Definition: BESVersionInfo.h:47
BESInternalError
exception thrown if internal error encountered
Definition: BESInternalError.h:43
BESRequestHandler::dump
virtual void dump(std::ostream &strm) const
dumps information about this object
Definition: BESRequestHandler.cc:163
BESDataHandlerInterface
Structure storing information used by the BES to handle the request.
Definition: BESDataHandlerInterface.h:56
BESResponseObject
Abstract base class representing a specific set of information in response to a request to the BES.
Definition: BESResponseObject.h:45