BESXMLInfo.h

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00001 // BESXMLInfo.h
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 #ifndef BESXMLInfo_h_
00034 #define BESXMLInfo_h_ 1
00035 
00036 #include <libxml/encoding.h>
00037 #include <libxml/xmlwriter.h>
00038 
00039 #include "BESInfo.h"
00040 
00048 class BESXMLInfo : public BESInfo
00049 {
00050 private:
00051     xmlTextWriterPtr    _writer ;
00052     xmlBufferPtr        _doc_buf ;
00053     bool                _started ;
00054     bool                _ended ;
00055     string              _doc ;
00056 
00057     void                cleanup() ;
00058 protected:
00059     virtual void        begin_tag( const string &tag_name,
00060                                    const string &ns,
00061                                    const string &uri,
00062                                    map<string,string> *attrs = 0 ) ;
00063 public:
00064                         BESXMLInfo( ) ;
00065     virtual             ~BESXMLInfo() ;
00066 
00067     virtual void        begin_response( const string &response_name,
00068                                         BESDataHandlerInterface &dhi ) ;
00069     virtual void        end_response( ) ;
00070 
00071     virtual void        add_tag( const string &tag_name,
00072                                  const string &tag_data,
00073                                  map<string,string> *attrs = 0 ) ;
00074     virtual void        begin_tag( const string &tag_name ,
00075                                    map<string,string> *attrs = 0 ) ;
00076     virtual void        end_tag( const string &tag_name ) ;
00077 
00078     virtual void        add_data( const string &s ) ;
00079     virtual void        add_space( unsigned long num_spaces ) ;
00080     virtual void        add_break( unsigned long num_breaks ) ;
00081 
00082     virtual void        add_data_from_file( const string &key,
00083                                             const string &name ) ;
00084     virtual void        print( ostream &strm ) ;
00085     virtual void        transmit( BESTransmitter *transmitter,
00086                                   BESDataHandlerInterface &dhi ) ;
00087 
00088     virtual void        dump( ostream &strm ) const ;
00089 
00090     static BESInfo *BuildXMLInfo( const string &info_type ) ;
00091 };
00092 
00093 #endif // BESXMLInfo_h_
00094 

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