BESDDXResponseHandler.cc

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00001 // BESDDXResponseHandler.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 "BESDDXResponseHandler.h"
00034 #include "BESDASResponse.h"
00035 #include "BESDDSResponse.h"
00036 #include "BESResponseNames.h"
00037 #include "BESRequestHandlerList.h"
00038 #include "BESDapTransmit.h"
00039 
00040 #include "BESDebug.h"
00041 
00042 BESDDXResponseHandler::BESDDXResponseHandler( const string &name )
00043     : BESResponseHandler( name )
00044 {
00045 }
00046 
00047 BESDDXResponseHandler::~BESDDXResponseHandler( )
00048 {
00049 }
00050 
00065 void
00066 BESDDXResponseHandler::execute( BESDataHandlerInterface &dhi )
00067 {
00068     BESDEBUG( "dap", "Entering BESDDXResponseHandler::execute" << endl )
00069     
00070     dhi.action_name = DDX_RESPONSE_STR ;
00071     // Create the DDS.
00072     // NOTE: It is the responsbility of the specific request handler to set
00073     // the BaseTypeFactory. It is set to NULL here
00074     DDS *dds = new DDS( NULL, "virtual" ) ;
00075     BESDDSResponse *bdds = new BESDDSResponse( dds ) ;
00076     _response = bdds ;
00077     _response_name = DDS_RESPONSE ;
00078     dhi.action = DDS_RESPONSE ;
00079     BESRequestHandlerList::TheList()->execute_each( dhi ) ;
00080 
00081 #if 0
00082     // In the handler code, it's now required that DDS objects be built with
00083     // attributes included (effectively DDS == DDX). This is needed for
00084     // various server-side functions and will pave the way to phase out the 
00085     // DDS/DAS responses as the basic building blocks in favor of the DDX.
00086     // jhrg 12/20/06
00087     
00088     // Fill the DAS
00089     DAS *das = new DAS ;
00090     BESDASResponse *bdas = new BESDASResponse( das ) ;
00091     _response = bdas ;
00092     _response_name = DAS_RESPONSE ;
00093     dhi.action = DAS_RESPONSE ;
00094     BESRequestHandlerList::TheList()->execute_each( dhi ) ;
00095 
00096     // Transfer the DAS to the DDS
00097     dds->transfer_attributes( das ) ;
00098 #endif
00099 
00100     dhi.action = DDX_RESPONSE ;
00101     _response = bdds ;
00102 
00103     BESDEBUG( "dap", "Leaving BESDDXResponseHandler::execute" << endl )
00104 }
00105 
00118 void
00119  BESDDXResponseHandler::transmit(BESTransmitter * transmitter,
00120                                  BESDataHandlerInterface & dhi)
00121 {
00122     if (_response) {
00123         transmitter->send_response(DDX_TRANSMITTER, _response, dhi);
00124     }
00125 }
00126 
00133 void
00134 BESDDXResponseHandler::dump( ostream &strm ) const
00135 {
00136     strm << BESIndent::LMarg << "BESDDXResponseHandler::dump - ("
00137                              << (void *)this << ")" << endl ;
00138     BESIndent::Indent() ;
00139     BESResponseHandler::dump( strm ) ;
00140     BESIndent::UnIndent() ;
00141 }
00142 
00143 BESResponseHandler *
00144 BESDDXResponseHandler::DDXResponseBuilder( const string &name )
00145 {
00146     return new BESDDXResponseHandler( name ) ;
00147 }
00148 

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