BESSetContextCommand.cc

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00001 // BESSetContextCommand.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 "BESSetContextCommand.h"
00034 #include "BESTokenizer.h"
00035 #include "BESResponseHandlerList.h"
00036 #include "BESContainerStorageList.h"
00037 #include "BESSyntaxUserError.h"
00038 #include "BESDataNames.h"
00039 #include "BESResponseNames.h"
00040 
00057 BESResponseHandler *
00058 BESSetContextCommand::parse_request( BESTokenizer &tokenizer,
00059                                            BESDataHandlerInterface &dhi )
00060 {
00061     string my_token ;
00062 
00063     /* No sub command, so proceed with the default set command
00064      */
00065     dhi.action = SET_CONTEXT ;
00066     BESResponseHandler *retResponse =
00067         BESResponseHandlerList::TheList()->find_handler( SET_CONTEXT ) ;
00068     if( !retResponse )
00069     {
00070         string s = (string)"No response handler for command " + SET_CONTEXT ;
00071         throw BESSyntaxUserError( s, __FILE__, __LINE__ ) ;
00072     }
00073 
00074     // Next token should be the name of the context
00075     my_token = tokenizer.get_next_token() ;
00076     if( my_token == ";" )
00077     {
00078         tokenizer.parse_error( my_token + " not expected\n" ) ;
00079     }
00080     dhi.data[CONTEXT_NAME] = my_token ;
00081 
00082     // Next token should be the token "to"
00083     my_token = tokenizer.get_next_token() ;
00084     if( my_token != "to" )
00085     {
00086         tokenizer.parse_error( my_token + " not expected\n" ) ;
00087     }
00088 
00089     // Next token should be the value of the context
00090     my_token = tokenizer.get_next_token() ;
00091     if( my_token == ";" )
00092     {
00093         tokenizer.parse_error( my_token + " not expected\n" ) ;
00094     }
00095     dhi.data[CONTEXT_VALUE] = my_token ;
00096 
00097     // Last token should be the terminating semicolon (;)
00098     my_token = tokenizer.get_next_token() ;
00099     if( my_token != ";" )
00100     {
00101         tokenizer.parse_error( my_token + " not expected\n" ) ;
00102     }
00103 
00104     return retResponse ;
00105 }
00106 
00113 void
00114 BESSetContextCommand::dump( ostream &strm ) const
00115 {
00116     strm << BESIndent::LMarg << "BESSetContextCommand::dump - ("
00117                              << (void *)this << ")" << endl ;
00118     BESIndent::Indent() ;
00119     BESCommand::dump( strm ) ;
00120     BESIndent::UnIndent() ;
00121 }
00122 

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