BESDefineResponseHandler.cc

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00001 // BESDefineResponseHandler.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) 2004,2005 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 #include <iostream>
00034 
00035 using std::cout ;
00036 using std::endl ;
00037 
00038 #include "BESDefineResponseHandler.h"
00039 #include "BESSilentInfo.h"
00040 #include "BESDefine.h"
00041 #include "BESDefinitionStorageList.h"
00042 #include "BESDefinitionStorage.h"
00043 #include "BESDataNames.h"
00044 #include "BESHandlerException.h"
00045 #include "BESResponseNames.h"
00046 
00047 BESDefineResponseHandler::BESDefineResponseHandler( string name )
00048     : BESResponseHandler( name )
00049 {
00050 }
00051 
00052 BESDefineResponseHandler::~BESDefineResponseHandler( )
00053 {
00054 }
00055 
00085 void
00086 BESDefineResponseHandler::execute( BESDataHandlerInterface &dhi )
00087 {
00088     dhi.action_name = DEFINE_RESPONSE_STR ;
00089     BESInfo *info = new BESSilentInfo() ;
00090     _response = info ;
00091 
00092     string def_name = dhi.data[DEF_NAME] ;
00093     string store_name = dhi.data[STORE_NAME] ;
00094     if( store_name == "" )
00095         store_name = PERSISTENCE_VOLATILE ;
00096     BESDefinitionStorage *store =
00097         BESDefinitionStorageList::TheList()->find_persistence( store_name ) ;
00098     if( store )
00099     {
00100         bool deleted = store->del_definition( def_name ) ;
00101 
00102         BESDefine *dd = new BESDefine ;
00103         dhi.first_container() ;
00104         while( dhi.container )
00105         {
00106             dd->add_container( *dhi.container ) ;
00107             dhi.next_container() ;
00108         }
00109         dd->set_agg_cmd( dhi.data[AGG_CMD] ) ;
00110         dd->set_agg_handler( dhi.data[AGG_HANDLER] ) ;
00111         dhi.data[AGG_CMD] = "" ;
00112         dhi.data[AGG_HANDLER] = "" ;
00113 
00114         store->add_definition( def_name, dd ) ;
00115     }
00116     else
00117     {
00118         string err_str = (string)"Uanble to add definition \"" + def_name 
00119                          + "\" to \"" + store_name
00120                          + "\" store. Store does not exist" ;
00121         throw BESHandlerException( err_str, __FILE__, __LINE__ ) ;
00122     }
00123 }
00124 
00138 void
00139 BESDefineResponseHandler::transmit( BESTransmitter *transmitter,
00140                                   BESDataHandlerInterface &dhi )
00141 {
00142     if( _response )
00143     {
00144         // If this dynamic_cast is to a reference an not a pointer, then if
00145         // _response is not a BESInfo the cast will throw bad_cast. 
00146         // Casting to a pointer will make ti null on error. jhrg 11/10/2005
00147         BESInfo *info = dynamic_cast<BESInfo *>(_response) ;
00148         info->transmit( transmitter, dhi ) ;
00149     }
00150 }
00151 
00158 void
00159 BESDefineResponseHandler::dump( ostream &strm ) const
00160 {
00161     strm << BESIndent::LMarg << "BESDefineResponseHandler::dump - ("
00162                              << (void *)this << ")" << endl ;
00163     BESIndent::Indent() ;
00164     BESResponseHandler::dump( strm ) ;
00165     BESIndent::UnIndent() ;
00166 }
00167 
00168 BESResponseHandler *
00169 BESDefineResponseHandler::DefineResponseBuilder( string handler_name )
00170 {
00171     return new BESDefineResponseHandler( handler_name ) ;
00172 }

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