OPeNDAP Hyrax Back End Server (BES) Updated for version 3.8.3
BESDefineResponseHandler.cc
Go to the documentation of this file.
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) 2004-2009 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 <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 "BESSyntaxUserError.h"
00044 #include "BESResponseNames.h"
00045 
00046 BESDefineResponseHandler::BESDefineResponseHandler( const string &name )
00047     : BESResponseHandler( name )
00048 {
00049 }
00050 
00051 BESDefineResponseHandler::~BESDefineResponseHandler( )
00052 {
00053 }
00054 
00081 void
00082 BESDefineResponseHandler::execute( BESDataHandlerInterface &dhi )
00083 {
00084     dhi.action_name = DEFINE_RESPONSE_STR ;
00085     BESInfo *info = new BESSilentInfo() ;
00086     _response = info ;
00087 
00088     string def_name = dhi.data[DEF_NAME] ;
00089     string store_name = dhi.data[STORE_NAME] ;
00090     if( store_name == "" )
00091         store_name = PERSISTENCE_VOLATILE ;
00092     BESDefinitionStorage *store =
00093         BESDefinitionStorageList::TheList()->find_persistence( store_name ) ;
00094     if( store )
00095     {
00096         store->del_definition( def_name ) ;
00097 
00098         BESDefine *dd = new BESDefine ;
00099         dhi.first_container() ;
00100         while( dhi.container )
00101         {
00102             dd->add_container( dhi.container ) ;
00103             dhi.next_container() ;
00104         }
00105         dd->set_agg_cmd( dhi.data[AGG_CMD] ) ;
00106         dd->set_agg_handler( dhi.data[AGG_HANDLER] ) ;
00107         dhi.data[AGG_CMD] = "" ;
00108         dhi.data[AGG_HANDLER] = "" ;
00109 
00110         store->add_definition( def_name, dd ) ;
00111     }
00112     else
00113     {
00114         string err_str = (string)"Uanble to add definition \"" + def_name 
00115                          + "\" to \"" + store_name
00116                          + "\" store. Store does not exist" ;
00117         throw BESSyntaxUserError( err_str, __FILE__, __LINE__ ) ;
00118     }
00119 }
00120 
00134 void
00135 BESDefineResponseHandler::transmit( BESTransmitter *transmitter,
00136                                   BESDataHandlerInterface &dhi )
00137 {
00138     if( _response )
00139     {
00140         // If this dynamic_cast is to a reference an not a pointer, then if
00141         // _response is not a BESInfo the cast will throw bad_cast. 
00142         // Casting to a pointer will make it null on error. jhrg 11/10/2005
00143         BESInfo *info = dynamic_cast<BESInfo *>(_response) ;
00144         if( !info )
00145             throw BESInternalError( "cast error", __FILE__, __LINE__ ) ;
00146         info->transmit( transmitter, dhi ) ;
00147     }
00148 }
00149 
00156 void
00157 BESDefineResponseHandler::dump( ostream &strm ) const
00158 {
00159     strm << BESIndent::LMarg << "BESDefineResponseHandler::dump - ("
00160                              << (void *)this << ")" << endl ;
00161     BESIndent::Indent() ;
00162     BESResponseHandler::dump( strm ) ;
00163     BESIndent::UnIndent() ;
00164 }
00165 
00166 BESResponseHandler *
00167 BESDefineResponseHandler::DefineResponseBuilder( const string &name )
00168 {
00169     return new BESDefineResponseHandler( name ) ;
00170 }