BESShowCommand.cc

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00001 // BESShowCommand.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 "BESShowCommand.h"
00034 #include "BESTokenizer.h"
00035 #include "BESResponseHandlerList.h"
00036 #include "BESSyntaxUserError.h"
00037 
00058 BESResponseHandler *
00059 BESShowCommand::parse_request( BESTokenizer &tokenizer,
00060                                    BESDataHandlerInterface &dhi )
00061 {
00062     BESResponseHandler *retResponse = 0 ;
00063 
00064     string my_token = parse_options( tokenizer, dhi ) ;
00065 
00066     /* First we will make sure that the developer has not over-written this
00067      * command to work with a sub command. In other words, they have a new
00068      * command called "show something". Look up show.something
00069      */
00070     string newcmd = _cmd + "." + my_token ;
00071     BESCommand *cmdobj = BESCommand::find_command( newcmd ) ;
00072     if( cmdobj && cmdobj != BESCommand::TermCommand )
00073     {
00074         retResponse = cmdobj->parse_request( tokenizer, dhi ) ;
00075     }
00076     else
00077     {
00078         dhi.action = newcmd ;
00079         retResponse =
00080             BESResponseHandlerList::TheList()->find_handler( newcmd ) ;
00081         if( !retResponse )
00082         {
00083             string err( "Command " ) ;
00084             err += _cmd + " " + my_token ;
00085             err += " does not have a registered response handler" ;
00086             throw BESSyntaxUserError( err, __FILE__, __LINE__ ) ;
00087         }
00088 
00089         my_token = tokenizer.get_next_token() ;
00090         if( my_token != ";" )
00091         {
00092             tokenizer.parse_error( my_token + " not expected" ) ;
00093         }
00094     }
00095 
00096     return retResponse ;
00097 }
00098 
00105 void
00106 BESShowCommand::dump( ostream &strm ) const
00107 {
00108     strm << BESIndent::LMarg << "BESShowCommand::dump - ("
00109                              << (void *)this << ")" << endl ;
00110     BESIndent::Indent() ;
00111     BESCommand::dump( strm ) ;
00112     BESIndent::UnIndent() ;
00113 }
00114 

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