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---

/BdbCondRemote/BdbCondCmdLineParser.cc

Go to the documentation of this file.

//-----------------------------------------------------------------------------
//
// File and Version Information:
//      $Id: BdbCondCmdLineParser.cc,v 1.3 2002/06/21 18:49:54 ryd Exp $
//
// Description:
//      This helper class helps parsing the command line parameters
//      of the intercative commands.
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Author List:
//      Igor A. Gaponenko       Original Author
//
// Copyright Information:
//      Copyright (C) 2000      Lawrence Berkeley Laboratory
//
//-----------------------------------------------------------------------------

// -------------------------
// -- This Class's Header --
// -------------------------

#include "BdbCondRemote/BdbCondCmdLineParser.hh"

// ---------------
// -- C Headers --
// ---------------

extern "C" {
#include <unistd.h>
#include <string.h>
#include <stdio.h>
}
#include <stdlib.h>

// -------------------------
// -- Objectivity Headers --
// -------------------------

// -------------------
// -- BaBar Headers --
// -------------------

// ----------------------------
// -- BaBar Database Headers --
// ----------------------------

// ---------------------------------
// -- Collaborating Class Headers --
// ---------------------------------

#include "ErrLogger/ErrLog.hh"

// --------------------------------------------------------------------------
// -- Local Macros, Typedefs, Structures, Unions, and Forward Declarations --
// --------------------------------------------------------------------------

static const char  rcsid[] = "$Id: BdbCondCmdLineParser.cc,v 1.3 2002/06/21 18:49:54 ryd Exp $";

// --------------------
// -- Static methods --
// --------------------

// ------------------
// -- Constructors --
// ------------------

BdbCondCmdLineParser::BdbCondCmdLineParser( )
{
    ErrMsg(fatal) << "BdbCondCmdLineParser::BdbCondCmdLineParser() -- FATAL ERROR IN THE CONSTRUCTOR." << endl
                  << "    The default constructor for this class should never be used." << endmsg;
    exit( 1 );
}

BdbCondCmdLineParser::BdbCondCmdLineParser( int   argc,
                                            char* argv[] ) :
    _argc(argc),
    _argv((const char**) argv)
{
    if(( 0 == argc ) && ( 0 == argv )) {
        ErrMsg(fatal) << "BdbCondCmdLineParser::BdbCondCmdLineParser() -- FATAL ERROR IN THE CONSTRUCTOR." << endl
                      << "    Either null argument counter or the null argument pointer have been passed" << endl
                      << "    to the constructor. This is inproper use of the class." << endmsg;
        exit( 1 );
    }
}

// ----------------
// -- Destructor --
// ----------------

BdbCondCmdLineParser::~BdbCondCmdLineParser( )
{
}

// ----------------
// -- Operations --
// ----------------

bool
BdbCondCmdLineParser::findSwitch( const char* name,
                                  bool        defaultValue ) const
{
    bool result = defaultValue;

    for( int i = 1; i < _argc; i++ ) {
        if( 0 == strcmp( name, _argv[i] )) {
            result = true;
            break;
        }
    }

    return result;
}

unsigned int
BdbCondCmdLineParser::findUIntPar( const char*  name,
                                   unsigned int defaultValue ) const
{
    unsigned int result = defaultValue;

  // Search for the pair of:
  //
  //    ... <name> <value> ...

    for( int i = 1; i < _argc; i++ ) {
        if( 0 == strcmp( name, _argv[i] )) {

         // We also expect a value.

           if( i < ( _argc + 1)) {

                if( 1 != sscanf( _argv[i+1], "%ud", &result)) {

                  // Refresh default value in case of error.

                    result = defaultValue;
                }
            }
            break;  // Even if the value is missing
                    // or non-translatable.
        }
    }

    return result;
}

const char*
BdbCondCmdLineParser::findStringPar( const char* name,
                                     const char* defaultValue ) const
{
    const char* result = defaultValue;

  // Search for the pair of:
  //
  //    ... <name> <value> ...

    for( int i = 1; i < _argc; i++ ) {
        if( 0 == strcmp( name, _argv[i] )) {

         // We also expect a value.

            if( i < ( _argc + 1)) {
                result = _argv[i+1];
            }
            break;  // Even if the value is missing.
        }
    }

    return result;
}

/////////////////
// End Of File //
/////////////////

 

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Last Update: October 04, 2002