OPeNDAP Hyrax Back End Server (BES)
Updated for version 3.8.3
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00001 // BESExceptionManager.cc 00002 00003 // This file is part of bes, A C++ back-end server implementation framework 00004 // for the OPeNDAP Data Access Protocol. 00005 00006 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research 00007 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu> 00008 // 00009 // This library is free software; you can redistribute it and/or 00010 // modify it under the terms of the GNU Lesser General Public 00011 // License as published by the Free Software Foundation; either 00012 // version 2.1 of the License, or (at your option) any later version. 00013 // 00014 // This library is distributed in the hope that it will be useful, 00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 // Lesser General Public License for more details. 00018 // 00019 // You should have received a copy of the GNU Lesser General Public 00020 // License along with this library; if not, write to the Free Software 00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 // 00023 // You can contact University Corporation for Atmospheric Research at 00024 // 3080 Center Green Drive, Boulder, CO 80301 00025 00026 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005 00027 // Please read the full copyright statement in the file COPYRIGHT_UCAR. 00028 // 00029 // Authors: 00030 // pwest Patrick West <pwest@ucar.edu> 00031 // jgarcia Jose Garcia <jgarcia@ucar.edu> 00032 00033 #include "BESExceptionManager.h" 00034 00035 #include "BESError.h" 00036 #include "TheBESKeys.h" 00037 #include "BESInfoList.h" 00038 00039 #define DEFAULT_ADMINISTRATOR "support@opendap.org" 00040 00041 BESExceptionManager *BESExceptionManager::_instance = 0 ; 00042 00043 BESExceptionManager::BESExceptionManager() 00044 { 00045 } 00046 00047 BESExceptionManager::~BESExceptionManager() 00048 { 00049 } 00050 00064 void 00065 BESExceptionManager::add_ehm_callback( p_bes_ehm ehm ) 00066 { 00067 _ehm_list.push_back( ehm ) ; 00068 } 00069 00090 int 00091 BESExceptionManager::handle_exception( BESError &e, 00092 BESDataHandlerInterface &dhi ) 00093 { 00094 // Let's see if any of these exception callbacks can handle the 00095 // exception. The first callback that can handle the exception wins 00096 ehm_iter i = _ehm_list.begin() ; 00097 for( ; i != _ehm_list.end(); i++ ) 00098 { 00099 p_bes_ehm p = *i ; 00100 int handled = p( e, dhi ) ; 00101 if( handled ) 00102 { 00103 return handled ; 00104 } 00105 } 00106 00107 dhi.error_info = BESInfoList::TheList()->build_info() ; 00108 string action_name = dhi.action_name ; 00109 if( action_name == "" ) 00110 action_name = "BES" ; 00111 dhi.error_info->begin_response( action_name, dhi ) ; 00112 00113 string administrator = "" ; 00114 try 00115 { 00116 bool found = false ; 00117 vector<string> vals ; 00118 string key = "BES.ServerAdministrator" ; 00119 TheBESKeys::TheKeys()->get_value( key, administrator, found ) ; 00120 } 00121 catch( ... ) 00122 { 00123 administrator = DEFAULT_ADMINISTRATOR ; 00124 } 00125 if( administrator.empty() ) 00126 { 00127 administrator = DEFAULT_ADMINISTRATOR ; 00128 } 00129 dhi.error_info->add_exception( e, administrator ) ; 00130 dhi.error_info->end_response() ; 00131 return e.get_error_type() ; 00132 } 00133 00143 void 00144 BESExceptionManager::dump( ostream &strm ) const 00145 { 00146 strm << BESIndent::LMarg << "BESExceptionManager::dump - (" 00147 << (void *)this << ")" << endl ; 00148 BESIndent::Indent() ; 00149 strm << BESIndent::LMarg << "# registered callbacks: " << _ehm_list.size() << endl ; 00150 BESIndent::UnIndent() ; 00151 } 00152 00153 BESExceptionManager * 00154 BESExceptionManager::TheEHM() 00155 { 00156 if( _instance == 0 ) 00157 { 00158 _instance = new BESExceptionManager( ) ; 00159 } 00160 return _instance ; 00161 } 00162