BESRequestHandler.h

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00001 // BESRequestHandler.h
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 #ifndef I_BESRequestHandler_h
00034 #define I_BESRequestHandler_h 1
00035 
00036 #include <map>
00037 #include <string>
00038 
00039 using std::map ;
00040 using std::string ;
00041 
00042 #include "BESObj.h"
00043 #include "BESDataHandlerInterface.h"
00044 
00045 typedef bool (*p_request_handler)(BESDataHandlerInterface &);
00046 #define BES_REQUEST_HANDLER_CATCH_ALL "catch_all"
00047 
00073 class BESRequestHandler : public BESObj
00074 {
00075 private:
00076     map< string, p_request_handler > _handler_list ;
00077     string                      _name ;
00078 public:
00079                                 BESRequestHandler( const string &name )
00080                                     : _name( name ) {}
00081     virtual                     ~BESRequestHandler(void) {}
00082 
00083     typedef map< string, p_request_handler >::const_iterator Handler_citer ;
00084     typedef map< string, p_request_handler >::iterator Handler_iter ;
00085 
00086     virtual const string &      get_name( ) const { return _name ; }
00087 
00088     virtual bool                add_handler( const string &handler_name,
00089                                             p_request_handler handler_method ) ;
00090     virtual bool                remove_handler( const string &handler_name ) ;
00091     virtual p_request_handler   find_handler( const string &handler_name ) ;
00092 
00093     virtual string              get_handler_names() ;
00094 
00095     virtual void                dump( ostream &strm ) const ;
00096 };
00097 
00098 #endif // I_BESRequestHandler_h
00099 

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