CSV_Reader.cc

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// CSV_Reader.cc

// This file is part of bes, A C++ back-end server implementation framework
// for the OPeNDAP Data Access Protocol.

// Copyright (c) 2004-2009 University Corporation for Atmospheric Research
// Author: Stephan Zednik <zednik@ucar.edu> and Patrick West <pwest@ucar.edu>
// and Jose Garcia <jgarcia@ucar.edu>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact University Corporation for Atmospheric Research at
// 3080 Center Green Drive, Boulder, CO 80301

// (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
// Please read the full copyright statement in the file COPYRIGHT_UCAR.
//
// Authors:
//      zednik      Stephan Zednik <zednik@ucar.edu>
//      pwest       Patrick West <pwest@ucar.edu>
//      jgarcia     Jose Garcia <jgarcia@ucar.edu>

#include "CSV_Reader.h"
#include "CSV_Utils.h"
#include "BESUtil.h"

CSV_Reader::CSV_Reader()
{
    _stream_in = new fstream() ;
}

CSV_Reader::~CSV_Reader()
{
    if( _stream_in )
    {
        if( _stream_in->is_open() )
        {
            _stream_in->close();
        }
        delete _stream_in;
        _stream_in = 0 ;
    }
}

bool
CSV_Reader::open( const string& filepath )
{
    bool ret = false ;
    _filepath = filepath ;
    _stream_in->open( filepath.c_str(), fstream::in ) ;
    if( !(_stream_in->fail()) && _stream_in->is_open() )
    {
        ret = true ;
    }
    return ret ;
}

bool
CSV_Reader::close() const
{
    bool ret = false ;
    if( _stream_in )
    {
        _stream_in->close() ;
        if( !(_stream_in->bad()) && !(_stream_in->is_open()) )
        {
            ret = true ;
        }
    }
    return ret ;
}

bool
CSV_Reader::eof() const
{
    return _stream_in->eof() ;
}

void
CSV_Reader::reset()
{
    _stream_in->seekg( ios::beg ) ;
}


void
CSV_Reader::get( vector<string> &row )
{
    string line ;

    getline( *_stream_in, line ) ;
    CSV_Utils::split( line, ',', row ) ;
}

void
CSV_Reader::dump( ostream &strm ) const
{
    strm << BESIndent::LMarg << "CSV_Reader::dump - ("
         << (void *)this << ")" << endl ;
    BESIndent::Indent() ;
    if( _stream_in )
    {
        strm << BESIndent::LMarg << "File " << _filepath << " is open" << endl ;
    }
    else
    {
        strm << BESIndent::LMarg << "No stream opened at this time" << endl ;
    }
    BESIndent::UnIndent() ;
}