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 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 <iostream>
00034 
00035 using std::endl ;
00036 
00037 #include "BESDefineResponseHandler.h"
00038 #include "BESSilentInfo.h"
00039 #include "BESDefine.h"
00040 #include "BESDefinitionStorageList.h"
00041 #include "BESDefinitionStorage.h"
00042 #include "BESDataNames.h"
00043 #include "BESHandlerException.h"
00044 #include "BESResponseNames.h"
00045 
00046 BESDefineResponseHandler::BESDefineResponseHandler( const string &name )
00047     : BESResponseHandler( name )
00048 {
00049 }
00050 
00051 BESDefineResponseHandler::~BESDefineResponseHandler( )
00052 {
00053 }
00054 
00084 void
00085 BESDefineResponseHandler::execute( BESDataHandlerInterface &dhi )
00086 {
00087     dhi.action_name = DEFINE_RESPONSE_STR ;
00088     BESInfo *info = new BESSilentInfo() ;
00089     _response = info ;
00090 
00091     string def_name = dhi.data[DEF_NAME] ;
00092     string store_name = dhi.data[STORE_NAME] ;
00093     if( store_name == "" )
00094         store_name = PERSISTENCE_VOLATILE ;
00095     BESDefinitionStorage *store =
00096         BESDefinitionStorageList::TheList()->find_persistence( store_name ) ;
00097     if( store )
00098     {
00099         bool deleted = store->del_definition( def_name ) ;
00100 
00101         BESDefine *dd = new BESDefine ;
00102         dhi.first_container() ;
00103         while( dhi.container )
00104         {
00105             dd->add_container( dhi.container ) ;
00106             dhi.next_container() ;
00107         }
00108         dd->set_agg_cmd( dhi.data[AGG_CMD] ) ;
00109         dd->set_agg_handler( dhi.data[AGG_HANDLER] ) ;
00110         dhi.data[AGG_CMD] = "" ;
00111         dhi.data[AGG_HANDLER] = "" ;
00112 
00113         store->add_definition( def_name, dd ) ;
00114     }
00115     else
00116     {
00117         string err_str = (string)"Uanble to add definition \"" + def_name 
00118                          + "\" to \"" + store_name
00119                          + "\" store. Store does not exist" ;
00120         throw BESHandlerException( err_str, __FILE__, __LINE__ ) ;
00121     }
00122 }
00123 
00137 void
00138 BESDefineResponseHandler::transmit( BESTransmitter *transmitter,
00139                                   BESDataHandlerInterface &dhi )
00140 {
00141     if( _response )
00142     {
00143         // If this dynamic_cast is to a reference an not a pointer, then if
00144         // _response is not a BESInfo the cast will throw bad_cast. 
00145         // Casting to a pointer will make ti null on error. jhrg 11/10/2005
00146         BESInfo *info = dynamic_cast<BESInfo *>(_response) ;
00147         info->transmit( transmitter, dhi ) ;
00148     }
00149 }
00150 
00157 void
00158 BESDefineResponseHandler::dump( ostream &strm ) const
00159 {
00160     strm << BESIndent::LMarg << "BESDefineResponseHandler::dump - ("
00161                              << (void *)this << ")" << endl ;
00162     BESIndent::Indent() ;
00163     BESResponseHandler::dump( strm ) ;
00164     BESIndent::UnIndent() ;
00165 }
00166 
00167 BESResponseHandler *
00168 BESDefineResponseHandler::DefineResponseBuilder( const string &name )
00169 {
00170     return new BESDefineResponseHandler( name ) ;
00171 }

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