BESResponseHandlerList.cc

Go to the documentation of this file.
00001 // BESResponseHandlerList.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 "BESResponseHandlerList.h"
00034 
00035 BESResponseHandlerList *BESResponseHandlerList::_instance = 0 ;
00036 
00051 bool
00052 BESResponseHandlerList::add_handler( const string &handler_name,
00053                                      p_response_handler handler_method )
00054 {
00055     BESResponseHandlerList::Handler_citer i ;
00056     i = _handler_list.find( handler_name ) ;
00057     if( i == _handler_list.end() )
00058     {
00059         _handler_list[handler_name] = handler_method ;
00060         return true ;
00061     }
00062     return false ;
00063 }
00064 
00074 bool
00075 BESResponseHandlerList::remove_handler( const string &handler_name )
00076 {
00077     BESResponseHandlerList::Handler_iter i ;
00078     i = _handler_list.find( handler_name ) ;
00079     if( i != _handler_list.end() )
00080     {
00081         _handler_list.erase( i ) ;
00082         return true ;
00083     }
00084     return false ;
00085 }
00086 
00099 BESResponseHandler *
00100 BESResponseHandlerList::find_handler( const string &handler_name )
00101 {
00102     BESResponseHandlerList::Handler_citer i ;
00103     i = _handler_list.find( handler_name ) ;
00104     if( i != _handler_list.end() )
00105     {
00106         p_response_handler p = (*i).second ;
00107         if( p )
00108         {
00109             return p( handler_name ) ;
00110         }
00111     }
00112     return 0 ;
00113 }
00114 
00122 string
00123 BESResponseHandlerList::get_handler_names()
00124 {
00125     string ret ;
00126     bool first_name = true ;
00127     BESResponseHandlerList::Handler_citer i = _handler_list.begin() ;
00128     for( ; i != _handler_list.end(); i++ )
00129     {
00130         if( !first_name )
00131             ret += ", " ;
00132         ret += (*i).first ;
00133         first_name = false ;
00134     }
00135     return ret ;
00136 }
00137 
00145 void
00146 BESResponseHandlerList::dump( ostream &strm ) const
00147 {
00148     strm << BESIndent::LMarg << "BESResponseHandlerList::dump - ("
00149                              << (void *)this << ")" << endl ;
00150     BESIndent::Indent() ;
00151     if( _handler_list.size() )
00152     {
00153         strm << BESIndent::LMarg << "registered response handlers:" << endl ;
00154         BESIndent::Indent() ;
00155         BESResponseHandlerList::Handler_citer i = _handler_list.begin() ;
00156         BESResponseHandlerList::Handler_citer ie = _handler_list.end() ;
00157         for( ; i != ie; i++ )
00158         {
00159             strm << BESIndent::LMarg << (*i).first << endl ;
00160         }
00161         BESIndent::UnIndent() ;
00162     }
00163     else
00164     {
00165         strm << BESIndent::LMarg << "registered response handlers: none" << endl ;
00166     }
00167     BESIndent::UnIndent() ;
00168 }
00169 
00170 BESResponseHandlerList *
00171 BESResponseHandlerList::TheList()
00172 {
00173     if( _instance == 0 )
00174     {
00175         _instance = new BESResponseHandlerList ;
00176     }
00177     return _instance ;
00178 }
00179 

Generated on 27 Oct 2009 for OPeNDAP Hyrax Back End Server (BES) by  doxygen 1.6.1