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BESAggFactory.h

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00001 // BESAggFactory.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) 2004,2005 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 Atmostpheric 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_BESAggFactory_h
00034 #define I_BESAggFactory_h 1
00035 
00036 #include <map>
00037 #include <string>
00038 
00039 using std::map ;
00040 using std::string ;
00041 
00042 #include "BESObj.h"
00043 
00044 class BESAggregationServer ;
00045 
00046 typedef BESAggregationServer * (*p_agg_handler)( string name ) ;
00047 
00055 class BESAggFactory : public BESObj
00056 {
00057 private:
00058     static BESAggFactory *      _instance ;
00059 
00060     map< string, p_agg_handler > _handler_list ;
00061 protected:
00062                                 BESAggFactory(void) {}
00063 public:
00064     virtual                     ~BESAggFactory(void) {}
00065 
00066     typedef map< string, p_agg_handler >::const_iterator Handler_citer ;
00067     typedef map< string, p_agg_handler >::iterator Handler_iter ;
00068 
00069     virtual bool                add_handler( string handler_name,
00070                                            p_agg_handler handler_method ) ;
00071     virtual bool                remove_handler( string handler_name ) ;
00072     virtual BESAggregationServer *find_handler( string handler_name ) ;
00073 
00074     virtual string              get_handler_names() ;
00075 
00076     virtual void                dump( ostream &strm ) const ;
00077 
00078     static BESAggFactory *      TheFactory() ;
00079 };
00080 
00081 #endif // I_BESAggFactory_h
00082 

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