CommandOption_example_2.cpp

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//==============================================================================
//
//  This file is part of GNSSTk, the ARL:UT GNSS Toolkit.
//
//  The GNSSTk 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 3.0 of the License, or
//  any later version.
//
//  The GNSSTk is distributed in the hope that it will be useful,
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//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GNSSTk; if not, write to the Free Software Foundation,
//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin.
//  Copyright 2004-2022, The Board of Regents of The University of Texas System
//
//==============================================================================
 
 
//==============================================================================
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin, under contract to an agency or agencies
//  within the U.S. Department of Defense. The U.S. Government retains all
//  rights to use, duplicate, distribute, disclose, or release this software.
//
//  Pursuant to DoD Directive 523024
//
//  DISTRIBUTION STATEMENT A: This software has been approved for public
//                            release, distribution is unlimited.
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//==============================================================================
#include <iostream>
#include <fstream>
#include <BasicFramework.hpp>
#include <StringUtils.hpp>
#include <CommandOptionWithCommonTimeArg.hpp>
#include <TimeString.hpp>
 
using namespace std;
using namespace gnsstk;
 
// Given that Doxygen removes Doxygen comments when rendering
// examples, please do not consider the absence of comments in the
// HTML rendering to be representative.  Refer to the file in the
// depot instead.
 
// Interesting examples:
// CommandOption2 -n -1 -D 1.2 -D 3.4 -t "2020/4/5 1:2:3"
 
class CommandOption2Example : public BasicFramework
{
public:
   CommandOption2Example(const string& applName);
   bool initialize(int argc, char *argv[], bool pretty = true) noexcept override;
   void process() override;
   void shutDown() override;
   CommandOptionWithNumberArg numOpt;
   CommandOptionWithDecimalArg floatOpt;
   CommandOptionWithCommonTimeArg timeOpt;
   int num;
   std::vector<double> dub;
   gnsstk::CommonTime beginTime;
};
 
 
CommandOption2Example ::
CommandOption2Example(const string& applName)
      : BasicFramework(applName, "Example application for CommandOption"),
        numOpt('n', "num", "your choice of integer"),
        floatOpt('D', "data", "specify any number of decimal numbers"),
        timeOpt('t', "time", "%Y/%m/%d %H:%M:%S",
                "specify a time (%Y/%m/%d %H:%M:%S)", true),
        num(0)
{
   numOpt.setMaxCount(1);
   timeOpt.setMaxCount(1);
}
 
 
bool CommandOption2Example ::
initialize(int argc, char *argv[], bool pretty) noexcept
{
   if (!BasicFramework::initialize(argc, argv, pretty))
      return false;
      // numOpt is not required and so check if it was actually specified.
   if (numOpt.getCount() > 0)
   {
         // convert the string value to integer
      num = gnsstk::StringUtils::asInt(numOpt.getValue()[0]);
   }
      // floatOpt is also not required
   if (floatOpt.getCount() > 0)
   {
      const std::vector<std::string>& vals(floatOpt.getValue());
         // make our target storage the same size as the source so we
         // don't have to reallocate over and over.
      dub.resize(vals.size(), 0.);
      for (unsigned i = 0; i < vals.size(); i++)
      {
         dub[i] = gnsstk::StringUtils::asDouble(vals[i]);
      }
   }
      // timeOpt is required, and the getTime method returns a CommonTime object
   beginTime = timeOpt.getTime()[0];
 
   return true;
}
 
 
void CommandOption2Example ::
process()
{
   cout << "Your number is " << num << endl;
   cout << "Data:" << endl;
   for (unsigned i = 0; i < dub.size(); i++)
   {
      cout << "  dub[" << i << "] = " << dub[i] << endl;
   }
   cout << "Requested time:"
        << printTime(beginTime, "%Y/%02m/%02d %02H:%02M:%02S")
        << endl;
}
 
 
void CommandOption2Example ::
shutDown()
{
   cout << "Shutting down" << endl;
}
 
 
int main(int argc, char *argv[])
{
   try
   {
      CommandOption2Example app(argv[0]);
      if (app.initialize(argc, argv))
      {
         app.run();
      }
      return app.exitCode;
   }
   catch (gnsstk::Exception& e)
   {
      cerr << e << endl;
   }
   catch (std::exception& e)
   {
      cerr << e.what() << endl;
   }
   catch (...)
   {
      cerr << "Caught unknown exception" << endl;
   }
   return gnsstk::BasicFramework::EXCEPTION_ERROR;
}